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Whether it can truly meet the needs of commercial square parking lots


At present, most manufacturers have proposed a parking lot management system for the characteristics of commercial square parking lots. The future commercial parking lot management system will only consider the construction and use of the parking lot management system, and develop towards integration, simplification, video, intelligence and network, providing users with fast and proactive service response. Whether it can truly meet the needs of commercial square parking lots container crane manufacturers, the main trends are as follows:

Whether it can truly meet the needs of commercial square parking lots

1,parking space network platform

The parking management system of each subsystem and equipment will be connected, and the data of each commercial square parking lot will also be shared, breaking the information island, building a smart parking network platform, realizing network parking space, quick access, parking guide, electronic self-payment, Car inquiry and other functions.

2, smart device application analysis

Intelligent analysis can predict the use of parking in advance, so as to respond appropriately, effectively improve, and avoid the shortcomings of the current system. For example, when the camera detects traffic flow and increases, it can prompt the administrator to increase the entrance management.

Intelligent analysis also avoids over-reliance on manual adjustments. Achieve rapid response. Through intelligent analysis, the problem is searched according to the established rules, and the software window is used to switch to the corresponding video interface for reminding, and the manager can be reminded by sending a text message, an email, etc., to notify the alarm information management at the first time, so as to respond quickly.

3,video and license plate recognition technology applications

The license plate number is the unique “identity” logo of the vehicle. The license plate recognition technology can realize the automatic entry and verification of the vehicle “identity” without any additional equipment on the vehicle. The technology has been applied to highway toll collection, speeding fine monitoring, etc., parking management system. The license plate recognition technology in the middle of the application has also begun to apply.China light crane manufacturer

With the upgrade of technology, the accuracy of license plate recognition will have a qualitative leap, which can automatically and accurately identify the vehicle color, vehicle brand, vehicle outline, and license plate recognition technology, while the vehicle itself has no other additional equipment, abnormal behavior alarm And the advantages of image analysis, license plate recognition technology is the future development direction.

Glass Wool Insulation Merchandise


Thermal Insulation Boards are manufactured from various kinds of thermal insulating material. Wood is utilized in building kayaks as a result of they’re durable when compared to steel and fiber glass. Foam insulation (or spray foam as it is generally known as) is regarded as preferable to utilizing fiberglass sheets as a result of it could actually match into the smallest areas. Glass wool ornamental acoustic board is obtainable for the interior suspended ceilings in lodges, halls, theaters, music halls, stadiums, conference rooms, ships and residential homes. Foam glass is a porous glass foam materials. Many of those foam spraying methods and supplies don’t include or use any CFCs.

Whether you want thermal insulators to assist control temperature or warmth shields to protect objects from excessive heat, we’ll work with you to find the appropriate thermal insulation materials to handle warmth-stream. Supplies used for storage doorways changed over time as effectively. The appropriate insulation must be chosen on the premise of temperature, thermal conductivity and different factors which may restrict utility. Recently, materials like aerogel (used by NASA for the construction of warmth resistant tiles, capable of withstanding heat up to roughly 2000 degrees Fahrenheit with little or no heat transfer), have turn into inexpensive and out there.

In the case of a contest- foam insulation versus fiberglass insulation- not everyone seems to be in total settlement. Under, three EPDs for thermal insulation supplies, that are obtained from different EPD programmes, are presented. It could fill small spaces more utterly than fibrous insulation supplies. Granular supplies, similar to calcium silicate, contain air entrained within the matrix. 8.2a) is based on natural minerals, e.g. volcanic rock, typically basalt, plus recycled put up-manufacturing waste supplies; the components are melted, spun into fibres and then blended with a binder and an impregnation oil.

Community portal – Bulletin board, projects, sources and activities masking a variety of Wikipedia areas. For each take a look at the impactor shall be fitted with new foam flesh reduce from one in all up to four consecutive sheets of froth sort CF-forty five flesh materials or equal, produced from the identical batch of manufacture (reduce from one block or bun” of foam), provided that foam from certainly one of these sheets was used in the dynamic certification test and the person weights of these sheets are inside ±2 per cent of the weight of the sheet used within the certification take a look at.

Foam glass is a kind of lightweight, excessive-power building materials and decorative materials with glorious performance (insulation), sound absorption, moisture proof and fireproof. Polystyrene, foamed in place and expanded moulded beads. Our Excellent Heat Insulation Hydrophobic Glass Wool Board Glass fibre insulation is product of pure non-color glass flat board as uncooked material, which come straight from flat glass factories, we don’t use cycled glass wool It is brilliant yellow in colour,tasteless or feint in odor,and no-injurant to human body. Mineral wool can in precept be recycled and utilized once more.

Elevated consciousness in direction of the setting and public health is leading to an integrated evaluation of insulation supplies and while nobody questions their constructive action, there is nonetheless significant potential for enhancing their general performance. The absorption of water in insulating material increases conductivity of the material and causes swelling of the fabric. Its product has options corresponding to light-weight, sound absorption, fireproof, heat preservation and insulation; it’s decorative, stunning and handy for construction.

The Candy’s Catalogue began that year as an annual reference listing detailing building merchandise, suppliers, and producers. Therefore, many insulation materials (e.g.polystyrene) perform just by having a lot of gasoline-crammed pockets which stop large-scale convection. These supplies are very poor conductors of heat and are due to this fact good thermal insulators. There is all kinds of products starting from unfastened pelleted supplies suitable for cavity wall insulation, to rolls and lightweight boards for loft insulation and dense slabs used for mild load bearing utility in flooring and roofs.

Blankets enable users to cut the glass wool to size for the given software, while batts will be useful for standardized construction. All welding or other operations involving naked flames or high temperatures within the space have to be prohibited until the froth is suitably protected. The air-trapping property can also be the insulation precept employed by homeothermic animals to stay heat, for instance down feathers , and insulating hair such as natural sheep’s wool In both instances the primary insulating materials is air, and the polymer used for trapping the air is natural keratin protein.

That is designated as l (the Greek letter lambda) and defined as the amount of heat (in kcal) carried out in a single hour by means of 1 m2 of fabric, with a thickness of 1 m, when the temperature drop via the fabric under conditions of regular warmth stream is 1 °C. The thermal conductance is established by checks and is the fundamental rating for any materials. Latex mattresses do not necessarily have a bonus over reminiscence foam mattresses either. We make and supply a full range of good and sustainable stone wool insulation products for the development business.

Features and specifically about small crane


A small crane is a kind of transportation vehicle in which a small crane and a chassis are combined. It is composed of a boom, a turntable, a frame, and a leg. Through the movement of the mechanism such as luffing, telescopic, rotary, and hoisting, the mechanical action of the small crane is realized, and the lifting operation is realized by a combination of different actions. A small crane is an abbreviation for a small crane. It is usually a special type of small crane (a crane with a lifting weight of less than 12 tons) installed on a small car or agricultural vehicle. Widely used in construction sites, industrial and mining enterprises, stations, terminals, electricity, postal, urban construction, gardens, paving bridges and other fields.gantry crane supplier

Features and specifically about small crane

Features: Full hydraulic transmission, stable operation, free adjustment of working speed, high work efficiency and low labor intensity. It is the mainstream and development direction of light cranes. It is equipped with safety locks and hydraulic brakes, with advanced technology and good safety. Use the vehicle chassis produced by the manufacturer, the configuration is reasonable, and the reliability is guaranteed. The boom material is integrally pressed from standard steel. It is equipped with night-time work lighting and a device that alerts the crew in the work area. The installed motor has a dual-power function, which broadens the scope of application and reduces the cost of use. Small cranes are small in size and suitable for rural construction.

Since the small crane started in the 1970s, it was relatively late, and the development speed was not fast. It was only in recent years that it had a great development. Compared with other regions, there is still a big gap. Specifically in:

  1. The safety device is not complete, and the operation is inconvenient. The small crane is only equipped with general safety devices such as lifting limit, balance valve and overflow valve, all of which are manual operation. Electronic technology has long been widely used in small cranes, such as torque limiters with microcomputers and anti-rollover protectors, and has implemented wired and wireless remote control.
  2. The function of a single small crane is mainly based on lifting operation and transportation function, and the vehicle crane has a variety of attachments, mainly installed on the head of the boom, such as work bucket, grab, aerial work platform, various grasping The tool, the clamp, the hanging basket, the auger, the fork, the tire manipulator, the pile puller, etc., enable the small crane to have a multi-purpose function. In addition, some manufacturers have further developed special products such as railway-specific small cranes.
  3. The shape is not beautiful. Our small crane design is monotonous, ignoring the coordination with the shape of the car, and the coloring of the small crane is very strict, not only in the shape and coloring to achieve integration with the truck, but also to coordinate with the urban landscape should.crane manufacturers
  4. Small cranes with low output and low output are now in the initial stage of development, with fewer varieties. The small and medium tonnage has been repeated more frequently, and has not yet formed a complete series of large, medium and small, and the annual output is only equivalent to the production capacity of one manufacturer.
  5. Small lifting torque and low technical level Small cranes are mainly straight arm hoisting, limited by the automobile chassis, and the lifting torque is small. Other performance indicators are generally lower than advanced products. At present, the investment in research and development of small cranes is very small, and the technical level of hydraulic systems and control systems also has a certain gap.

Movie Rockwool On Vimeo


Glass wool is a sort of fibrous materials comprised of the melted glass uncooked materials or cullet. If the radius of the insulated cylinder is smaller than the important radius for insulation, the addition of any amount of insulation will increase warmth switch. Profitability relies upon substantially on the insulating properties of the fabric and its worth, but in addition on parameters of the wall with out thermal insulation in addition to a warmth supply used within the constructing and, as a consequence, annual heating prices. The first perform of thermal insulation materials utilized in small fishing vessels using ice is to cut back the transmission of heat by way of fish maintain walls, hatches, pipes or stanchions into the place where chilled fish or ice is being saved.

Nonetheless, the economic evaluation exhibits that the investment in thermal insulation of building external partitions doesn’t all the time have to be economically worthwhile for the investor. The effect of orientation, position of the PCM layer, phase change temperature, and climate conditions was studied by Izquierdo-Barrientos et al. (2012), and so they found that the PCM helps to scale back the maximum and amplitude of the instantaneous heat flux. Since then, the company, based in 1983, has manufactured the light-weight aggregate Poraver® expanded glass granules at its manufacturing sites in Europe and North America for purchasers and distributors throughout the world.

It reduces vitality demand for heat in the use section of the building. The insulation supplies have damping traits, which controls the sound ranges, lowering and distorting them. Along with getting just about probably the most functionally essential furnishing goods, coffee tables could be discovered in several varieties, measurements, hues, and likewise supplies, making them the outlined design part. This product is used as insulation and in different applications, like for air filters. A thermal insulation materials is one which frustrates the circulation of heat.

As a consequence of having our own Constructing Conservation Team we even have real world information of the products we provide. If the interior of an insulated fish maintain is colder than the skin air, the fish maintain draws heat from the surface. The ecological prices connected with the efficiency of thermal insulation are much decrease than the ecological profits obtained within the use phase of the constructing. Thermal insulation of exterior partitions is, nonetheless, beneficial for the surroundings. The United States Lycopene Trade report offers a complete account of the United States Lycopene market.

A thermal insulator is a poor conductor of warmth having very low thermal conductivity. Because mineral wool could be delivered as waterproof and fireproof rock wool blanket construction material, it offers an necessary contribution to the preventive structural fire safety. Laboratory assessments indicate that unprotected (inflexible) polyurethane foam containing a fire-retardant won’t ignite from small flame sources similar to matches, but will burn rapidly when exposed to giant sources of flame and warmth. Extruded polystyrene foam (XPS) consists of closed cells, gives improved surface roughness and better stiffness and reduced thermal conductivity.

Virtually all the petrochemical insulation materials are in the type of polymers. The inflexible panels add thermal insulation and added energy by decreasing the conduction of heat that may be transferred by means of different structural supplies such as metal and wooden beams. From 1987-2004, Rockwool Group’s President and CEO was Tom Kähler. Waste in production – foamed glass powder and scrap will also be used as fillers for decorative mild concrete and other functions. As might be see from the figure, all petrochemical insulation supplies are cellular.

To be able to accomplish formation of small gasoline cells in man-made thermal insulation, glass and polymer supplies can be utilized to entice air in a foam-like structure. Spray foam vitality solutions from california’s premier spray foam insulation contractor for instation in residential, business and industrial buildings. Due to this fact, thermal conductivity is the measure of the pace of warmth stream passed from particle to particle. These materials featured an expanded frequency range and elevated sound absorption 35,38,39.

Single-girder crane considerations


Single-girder cranes are widely used for lifting goods in different occasions and are prohibited from being used in flammable and explosive corrosive media environments. It has two forms of operation, ground and air. Ground operation has two kinds of operation with line handle and remote controller handle; air operation refers to cab operation. There are two types of cabs, open and closed. They can be divided into left or right side according to the actual situation. There are two types of side and end faces in order to meet the needs of users in various situations.

Single girder bridge cranes are widely used in workshops, warehouses, stockyards, etc. in machinery manufacturing workshops, metallurgical workshops, petroleum, petrochemical, port, railway, civil aviation, power station, paper, building materials, electronics and other industries. The utility model has the advantages of compact size, low building clearance height, light weight and small wheel pressure.bridge crane for sale from China manufacturers

Single-girder crane considerations

Single-girder crane model:

The main types of electric single beam are LDA electric single beam crane, LD electric single beam crane, HD electric single beam crane, LX electric single beam suspension crane, SDXQ manual single beam suspension crane and single beam grab crane.

Single-girder crane considerations:

(1) During the work, no one on the bridge or a hook will be used to transport the person.

(2) Each crane must hang a rated hoisting sign in an obvious place.

(3) Lifting is not allowed in the following cases: the binding is not strong; the parts are overloaded; the signal is unknown; the cable is pulled; the object buried or frozen in the ground; the person on the object being hoisted; the flammable product and the explosive device without safety protection measures And dangerous goods; overfilled liquid articles; wire ropes do not meet the requirements for safe use; the lifting mechanism is faulty.

(4) The operation must be concentrated, not allowed to talk, smoke or do nothing.

(5) No crane or driver is allowed to drive the crane.

(6) The crane is not allowed to be used for overload.

(7) The car should be clean; no equipment, tools, flammable materials, explosives or dangerous goods should be allowed.

(8) When the crane is running on the line without obstacles, the hook or spreader and the bottom of the hanging object must be more than 2m away from the ground. If the obstacle is crossed, it must exceed the obstacle by 0.5m.

(9) For objects that are less than 50% of the rated lifting weight, two mechanisms are allowed to operate at the same time; if the object is larger than 50% of the rated lifting weight, only one mechanism can be operated.

(10) Bridge cranes with main and auxiliary hooks. Do not raise or lower the main and auxiliary hooks at the same time (special exceptions).

(11) It is not allowed to weld or hammer on the object to be lifted and work under the object (when there is support).

(12) When there is a problem with the lift brake, it is not allowed to lift and lower heavy objects.

(13) Do not throw anything from the car down.

(14) Limit switches and interlock protection devices should be checked frequently.

(15) It is not allowed to use the limit switch as a means of parking.

(16) The inspection or maintenance work must be carried out after the power failure and when the sign of the power failure operation is hung on the electric door. If it is necessary to carry out live work, it must be protected by safety measures and have special care.

(17) The object to be hoisted is not allowed to run over people or equipment.

(18) When welding a certain part of the crane, it is necessary to set the ground wire specifically, and it is not allowed to use the fuselage to make the ground wire.

(19) When the hook is in the lower limit position, two or more safety loops must be retained on the reel.port crane manufacturers

(20) Cranes are not allowed to collide with each other, and it is not allowed to use one crane to drive another crane to work.

(21) Regular safety technical inspections and pre-checking pre-repairs

(22) For lamps for repair and inspection, the voltage must be below 36V.

(23) When lifting heavy objects, liquid metal, explosive and dangerous goods, it must be slowly lifted from the ground 100~200mm to test the reliability of the brakes.

(24) Bridge cranes All electrical equipment enclosures should be grounded. If the trolley track is not welded to the main beam, the welding grounding measures should be taken. The grounding wire can be galvanized flat iron with a cross-sectional area of ​​more than 75 mm2 or a bare copper wire of 10 mm2 or a galvanized round steel of more than 30 mm2. There should be more than two grounding positions for the cab or crane body. The grounding resistance from any point on the crane to the neutral point of the power supply should be less than 4Ω.

Thermal Insulation Materials Company Record


Glass wool is a type of fibrous materials made from the melted glass raw supplies or cullet. Alternatively, many crops contain fibres for his or her power, due to this fact virtually all of the bio-based insulation materials are fibrous (besides expanded cork, which is mobile). Under is a sampling of our thermal insulation supplies for temperature management that can be used for quite a lot of functions. Normally, the costlier supplies, such as the polyurethane foams are extra environment friendly insulators for given thicknesses. As mentioned earlier than, mineral wool products carry a high quality mark and comply with certain (national) safety standards.

To insulate a surface, there are few points which are required to be taken care of like cleaning of floor 28 , 29 and utility of corrosion repellents like chloride, fluorine and magnesium to have least amount of water achieve to forestall corrosion 30 Thompson 31 reported that, each product has a distinct temperature for storage, based on this temperature, the optimum working temperature and the type of insulation material and thickness of insulation is selected. For insulation materials, three common categories may be outlined.

That is designated as l (the Greek letter lambda) and defined as the amount of warmth (in kcal) performed in a single hour through 1 m2 of fabric, with a thickness of 1 m, when the temperature drop through the fabric below circumstances of steady warmth circulation is 1 °C. The thermal conductance is established by assessments and is the fundamental ranking for any material. Latex mattresses don’t essentially have an advantage over memory foam mattresses either. We make and supply a full vary of good and sustainable stone wool insulation products for the development industry.

Glass wool is a thermal insulation that consists of intertwined and flexible glass fibers, which causes it to “package” air, resulting in a low density that can be varied via compression and binder content (as noted above, these air cells are the actual insulator). Fiberglass insulation should never be left uncovered in an occupied space, in keeping with the American Lung Affiliation. The trusted UK provider of conventional, eco-pleasant and sustainable constructing supplies and paints. In the combat in opposition to global warming, thermal insulation is critical to power conservation and serves as a barrier to warmth throughout hotter temperatures and the cold in cooler months.

Thermal spray foam insulation is a crucial factor to reaching thermal consolation for the buildings occupants, and thermal spray foam insulation reduces undesirable heat loss, and reduces the vitality necessities of cooling and heating systems. With a purpose to accomplish small gas cell formation in man-made thermal insulation, glass and polymer materials can be utilized to entice air in a foam-like structure. You should utilize the passive absorption methodology to cut back sound; mineral wood insulation or acoustic foam forces sound wave to alter route several time and journey an excellent distance earlier than it might completely go by means of the insulation materials.

The specialists on mattress care suggest that you keep away from using hard boards under mattresses to assist them last longer. Our number of innovative materials consists of hydrophobic melamine foams, elastomeric mounts, and customized molded foams that management vibration, noise, and temperature. The symbol U designates the general coefficient of heat transmission for any section of a fabric or a composite of materials. Although there are many materials accessible to build kayaks, wooden is predominantly utilized in its constructing.

We provide the very best and first-in 7-Layer Air Bubble Insulation Materials particularly manufactured with high-quality supplies for offering world-class services to our shopper. POLYDAMP® Low-FS Closed Cell Foam is a proprietary elastomeric compound designed to be used as a thermal insulation and gasket material the place low flame unfold and smoke propagation traits are required. 5. Foam glass has good sound insulation efficiency and powerful absorption of sound waves. A glass column of a suitable size containing a small glass-wool plug and a layer of acid-washed sand or glass frit at its base is partially crammed with sorbent using the dry-packing or slurry-packing method.

The United States Gas Spring Industry report provides a comprehensive account of the United States Gas Spring market. Insulation is utilized in dairy and food industries to forestall heat loss or heat gain. Whereas a plethora of manufacturers that create uncomfortable spring and coil kind mattresses try to get shoppers to buy their products by slapping plush and aesthetically pleasing coverings on them, folks often discover that their sleep and physique undergo from making these purchases. We are producer of glass wool, rubber foam and rock wool for warmth insulation.

The air-trapping property can also be the insulation precept utilized in nature in down feathers, and insulating hair corresponding to natural wool. The thermal properties of insulating materials and different frequent fishing vessel construction supplies are identified or might be accurately measured. By this mode, warmth power is handed by way of a stable, liquid or fuel from molecule to molecule in a cloth. Foam rubbers have been used commercially for a wide range of applications since across the Nineteen Forties. The loose wool can be utilized to make asphalt-bonded glass blanket and glass wool board.

Cantilever crane features


The working strength of the cantilever crane is light. The crane consists of a column, a rotary arm rotary drive device and an electric hoist. The lower end of the column is fixed on the concrete foundation by anchor bolts. The cycloidal pinion reduction device drives the cantilever rotation. The electric hoist is in the cantilever. The word steel runs on the left and right lines and lifts heavy objects. The swing arm of the crane is a hollow steel structure with light weight, large span, large lifting capacity and economical and durable. The built-in walking mechanism adopts special engineering plastic walking wheel with rolling bearing, which has small friction and light walking; the small size of the structure is especially beneficial to improve the hook stroke.

Cantilever crane features:

The cantilever crane is a new generation of light hoisting equipment made for modern production. It is suitable for high-reliability electric chain hoists. It is especially suitable for short distances, frequent use and intensive lifting operations. It is efficient, energy-saving, and saves trouble. The area is small, easy to operate and maintain. The movable cantilever crane is more flexible and adaptable, and it is a necessary emergency lifting device for high-efficiency automatic production line. It can ensure the unimpeded production line.electric cable hoist supplier

The curved arm series cantilever crane has the characteristics of novel structure, flexible extension, flexible operation, high efficiency and energy saving. During operation, press the push button to lift the load, and use the bending and rotating motion of the beam to avoid objects in the control work area to maximize the working area. Gently push and pull by hand to reach any position in the work area.

The crank crane is suitable for the production or maintenance of machinery manufacturing, railway, chemical, light industry and other industries. Especially in the production line with dense equipment, short distance lifting and frequent operation, this product can improve production efficiency.

Gantry cranes can weigh up to 2,000 kilograms, making it easy to use where cranes are not possible or economical. Gantry cranes can be easily split into several easy-to-transport sections and assembled quickly in another location, a feature that is beneficial in many situations. I-beam steel gantry cranes can weigh up to 2,000 kg.gantry crane supplier

The wall-type cantilever crane is a new type of material lifting equipment developed on the basis of the wall-column cantilever crane. The traveling track of the machine is installed on the cement column of the factory building, and can be longitudinally moved along the track, and the electric hoist can complete the lateral movement along the selected cantilever and the vertical lifting. The machine greatly expands the scope of work, more efficient use of the plant space, and the use effect is more ideal.

Light crane working principle and structure type


The light crane adopts a unique design concept with small size, light weight and small wheel pressure. Compared with the traditional crane, the limit distance from the hook to the wall is the smallest, and the clearance height is the lowest. The Keli crane is closer to the front work, and the lifting height is higher, which actually increases the effective working space of the existing plant. Due to the light weight and low wheel pressure of the light crane, the new plant can be designed to be smaller and more complete.light crane manufacturer

Light crane working principle

It can be divided into two categories: one is centralized driving, that is, one motor drives the long drive shaft to drive the active wheels on both sides; the other is driven separately, that is, the active wheels on both sides are driven by one motor. Medium and small bridge cranes use the “three-in-one” drive method in which the brakes, reducer and electric motor are combined. The common bridge crane with large lifting weight is easy to install and adjust, and the drive unit often adopts universal joint. .

light crane manufacturer

Light crane structure type

The crane operating mechanism generally uses only four active and driven wheels. If the lifting weight is large, it is common to increase the wheel to reduce the wheel pressure. When the number of wheels exceeds four, the articulated equalization frame device must be used to evenly distribute the load of the crane on each wheel.

The metal structure of the bridge consists of main beam and end beam, which are divided into two types: single main beam bridge and double girder bridge. The single main girder bridge consists of a single main beam and end beams on both sides of the span. The double girder bridge consists of two main beams and end beams.

The main beam is rigidly connected to the end beam, and the ends of the end beam are provided with wheels for supporting the bridge to run on the elevated frame. The main beam is welded with a track for the lifting trolley to run. The main types of the main girder of the bridge are more typical of box-shaped structure, four-truss structure and hollow truss structure.

The box-shaped structure can be further divided into two types: a normal-rail box-shaped double beam, a deviated rail-shaped double-beam, and a deviated box-shaped single main beam. The normal-rail box-shaped double beam is a basic form widely used. The main beam is composed of upper and lower flange plates and vertical webs on both sides. The trolley rail is arranged on the center line of the upper flange plate, and its structure is simple. It is easy to manufacture and suitable for batch production, but its weight is large.

The cross-section box-shaped double-beam and the off-track box-shaped single main beam are composed of upper and lower flange plates and unequal-thick main and auxiliary webs. The trolley rails are arranged above the main webs, and the short-boosting of the casings The plate can be omitted, wherein the single-segment box-shaped main girder is replaced by a wide-flange box-shaped main beam instead of two main beams, and the self-weight is small, but the manufacturing is complicated. The four-truss structure is composed of four flat trusses combined into a closed space structure. The upper horizontal truss surface is generally covered with a walking platform, which has light weight and high rigidity. However, compared with other structures, the outer dimensions are large, the manufacturing is complicated, and the fatigue is complicated. Low strength and less production.

The hollow truss structure is similar to the derailed box-shaped main beam. It consists of four steel plates and a closed structure. Except for the main web, which is a solid abaxial I-shaped beam, the other three steel plates are cut into many windows according to the design requirements to form a non-slanting rod. The fasting truss is provided with a walking platform on the upper and lower horizontal truss surfaces. The crane running mechanism and electrical equipment are installed inside the bridge. The self-weight is light and the overall rigidity is large. This is a widely used type in China.crane manufacturers

Ordinary bridge cranes are mainly driven by electric power, usually operated in the driver’s cab, and also controlled remotely. The lifting capacity can reach 500 tons and the span can reach 60 meters.

Simple girder cranes, also known as girder cranes, have a structural composition similar to that of ordinary bridge cranes, with small weight, span and working speed. The main beam of the bridge is a simple section beam composed of I-beam or other steel and sheet steel. The chain hoist or electric hoist is equipped with a simple trolley as the lifting trolley. The trolley generally runs on the lower flange of the I-beam. The bridge can be run along an elevated track or along a track suspended below the elevated frame. This type of crane is called a suspended beam crane.

Metallurgical special bridge cranes can participate in specific process operations in the steel production process. The basic structure is similar to that of ordinary bridge cranes, but special working mechanisms or devices are also installed on the lifting trolleys. The working characteristics of this kind of crane are frequent use, poor conditions and high working level. There are five main types.

The jib crane lifting equipment


The more large the project, the more it will use some lifting equipment. The jib crane is mainly used in engineering. So, how can we play its role in engineering? Let’s take a closer look at how it works correctly.crane manufacturers

The jib crane lifting equipment

The jib crane has a larger span and is economical and durable. It has a built-in walking mechanism and is smaller in size, which is particularly advantageous for improving the travel of the hook.

In the jib crane, the steel bars obtained by it are all disposed at the root of the cantilever of the bridge. However, the current calculation program often only pays attention to the distribution of the longitudinal bending reinforcement on the bottom of the box girder, although the longitudinal reinforcement according to the calculation has been matched. foot.

However, according to the characteristics of the actual force situation, the stress concentration occurs at the root of the cantilever side web, and the gradual decrease on both sides of the web root is reduced. If it is designed according to the conventional design, the longitudinal force-reinforcing steel bar in the cantilever side web is unreasonable, which leads to insufficient bending resistance of the root of the side web of the cantilever plate of the cantilever beam and cracks.

The jib crane is used in engineering applications. It is designed to take into account the stiffness and strength of the port crane work.

Moreover, under the action of any load, the cantilever beam of the jib crane can obtain large deformation by bending, and provides a versatile method to obtain large deformation. The jib crane can also be obtained smoothly by the deflection of the section.

Points should be noted during the operation of the boom crane


As a common crane equipment, the cantilever crane must have a strict posture and careful observation during use to avoid accidents and reduce costs. gantry crane supplier,Therefore, the following points should be noted during the operation of the boom crane:

1.The bumper or baffle at both ends of the cantilever I rail is used only for unrestricted positions. It is not allowed to be used as a normal parking method during normal operation and is not suitable for frequent collisions.

Points should be noted during the operation of the boom crane

2.Sometimes in order to protect the equipment on the cantilever crane from corrosion, it is necessary to periodically accumulate the polymer on the track and apply some anti-rust oil. The operator of the jib crane should strictly abide by the operating procedures. No-load operation should be carried out before each use of the cantilever crane, and it is checked whether the rotation, operation, lifting, limit and other mechanisms are normal. If an abnormality is found, the machine should be shut down for inspection before it can be used.

3.In the cantilever crane, it is not allowed to tilt and lift heavy objects. It is forbidden to use the hook to drag heavy objects along the ground or forcibly lift the buried heavy objects. It is also not allowed to use the local swivel arm to drag or hit the work.best overhead crane supplier

Also in the jib crane, after the operation is completed, the weight should be removed to avoid deformation of the mechanism for long-term suspension. In addition, the following stations are strictly forbidden during operation and some devices are installed to avoid accidents during construction.