Production description 1.Crane rolling drumis the component to wind wire rope in the lifting mechanism. 2.Crane rolling drumconsists of drum shaft, flange type annular gear, drum hub, bearings, and bearing pedestal. 3.When one end of drum is equipped with the switch of rotary type position limiter, it must ensure to make drum shaft and rising limit switch rotate synchronously
Introduction:
Double speed electric hoiib cranes for material handling. As one of the commonly used material handling equipment, the double speed electric hoist is usually used in factory, mining, railway, port, and storage, etc.
The double speed electric hoist has two speed options which coordinate with each other to realize the efficient material handling work with precision. The lifting capacity of double speed electric hoist is 0.5 â?? 32 ton and the working class is M3 and M4.
Advantages:
Double speed electric hoist of DONGFENGCRANES has the following advantages:
·The double speed electric hoist is designed with compact structure, with the features of small size, light weight, standardized parts, etc.
·The double speed electric hoist has fast and slow lifting speed, which can make the lifting stable and easy.
·The double speed electric hoist has big lifting capacity, high working efficiency, and long working life.
·The double speed electric hoist is easy to operation and convenient to repair.
Introduction:
Single girder gantry crane is a type of light small gantry crane with a single girder and rail travelling. The single girder gantry crane is designed for generally material handling, with the lifting capacity around 1 to 20 tons, and working class a3, or a4.
Components:
Single girder gantry crane is mainly consisted of gantry frame, i.E. Main single girder, legs, bottom end beams, lifting mechanism, travelling mechanism, and electrical control. It can be designed with two hanging arms, one hanging arm or no-hanging arm according to client's lifting requirements and application environment.
Application:
Single girder gantry crane is regular crane, designed for general material handling, which is frequently used at open ground, warehouse, ports, granite industry, cement pipe industry, open yard, container depots and shipyards, etc. However, it is forbidden to handle melt metal, inflammable. Or explosive objects.
Advantages:
·simple structure, easy installation
·good usability and high performance efficiently
·low and easy maintenance
·standardized, generalized and serialized parts.
Safety feature:
·overload protection devices are equipped which will give a sharp alarm warning when overloads happen.
·limit switches is used to prevent over lifting or lowering of the crane hook.
·high quality polyurethane buffer is used to ensure a long time working life.
·room control and remote control are available for the sake of your operatorâ??s safety.
·low voltage protection is used in case of the unstable voltage supply.
·emergency stop button is installed to stop the equipment when emergency happens.
·current overload protection system and others, etc.
Introduction
Double girder gantry crane is heavy gantry crane with double girders, which is widely used for general purpose. Double girder gantry crane are heavy duty crane, used at indoors and outdoors places where overhead crane�runways are not practical. The lifting capacity of the double girder gantry crane is 5 to 500 tons. The working class of the gantry crane is A5 and A6.
Application of Double Girder Gantry Crane:
Double girder gantry crane is usually used to open warehouse or along rail for general material handling and lifting work, such as, freight yard or dock, etc.
Introduction
Explosion proof electric hoist is a specially designed material handling equipment with the features of explosion proof. Explosion proof electric hoist is designed and manufactured according to gb3836-2000 provisions and international regulations, with the explosion proof mark of d ii bt4, and d ii ct4, which can be supplied to applications that has the level of ii a, ii b, ii c grade, the temperature sub-groups t1-t4 group of combustible gas, steam and air from the explosion gas mixtures in a zone, zone 2 areas. The lifting capacity of explosion proof electric hoist is 0.5 to 16 tons and working class of explosion proof hoist is m3.
Applications:
Explosion proof electric hoist can be used on the main i-beam track to run in straight or curve line to handle materials or installed on a fixed bracket as a lifting solution for heavy loads. Explosion- proof electric hoist also can be fixed to different applications, working with explosion proof single girder overhead travelling crane or with the explosion proof dual beam bridge crane, etc.
Environmental conditions of explosion proof electric hoist
Explosion proof electric hoist is applied to the environment with the elevation below 1000m, with relative humility, with the class i, class iib and iic.
The temperature scale of explosion proof hoist is class t1-t4 (explosion hazardous area).
Explosion proof electric hoist can be hanged on i beam rail, explosion proof single girder or double girder, or other fixed support for material handling, etc.
Advantages:
Explosion proof electric hoist from dongfengcranes has the following advantages:
1.Compact structure, small size, light weight, large capacity.
2.High safety and reliability.
3.All the spare parts are generalized and changeable, which make hoist maintenance easy and simple.
4.No spark materials are used to the outside parts enhancing anti-explosion ability of electric hoist.
5.Explosion proof electric hoist is designed and manufactured according to gb3836-2000.
Features of electric hoist double girder overhead crane
1.Double girder structure makes the crane bridge have sufficient strength, rigidity, and stability.
2.Rail-in-middle box girder design thoroughly meets the requirement to strength, rigidity and stability.
3.End beams designed with simple structure can be easily installed with main beam by high-strength bolts.
4.CD or MD high quality wire rope electric hoist is used as lifting mechanism.
5.Soft starting motors with light current are used with ground control.
6.Dual-motor independent drive device is adopted to reduce the wear of rail gnawing and reduce the possibility of wheel climb off track fault, etc.
7.Motor is directly controlled by contactor, which can make the motor achieve single and double speed and reversing control.
8.Frequency converter is used to change the frequency and voltage of motor power to realize the function of speed adjustment control of motor.
9.Multiple safety protection system is adopted, including short circuit protection, no-voltage protection, emergency power off switch protection, overload limit protection, travel limit protection, zero and chain protection, ground protection, etc.
Jib cranes are the optimal lifting equipment for short transfer applications. Dongfeng cranes can provide you the wall travelling jib crane, pillar jib crane and wall mounted jib crane, etc. Dongfeng cranes jib cranes can lift and transport materials in semi circles or full circles around their support structures to provide localized material handling in work cells, to supplement a large overhead crane system, to transfer materials from one work cell to another, and to lift a line load up to the rated capacity safely.
Product description
The wheel group is used to support the crane and the load, and on the track to make the crane run back and forth. Our factory produce crane wheel group, that using independent research and developed new crane wheel technology â??one time mold forged crane wheelâ?�, the technology increase the working life of the crane wheel and lead of China. Product process apply heat treatment technology, including hardening and tempering, high frequency quenching, carburizing quenching etc, surface and rim quench depth 15-18mm, surface and rim quench hardness HRC45-55mm.
Crane Wheels are available in a wide range of standard sizes. In addition, crane wheels meet your special design requirements which can be produced in virtually any size, configuration and surface finish condition. We maintain a large inventory of wheel group to meet your specific needs.
Introduction:
Electric wire rope hoist is a type of material handling equipment, installed on a single beam crane, linear curve stranded beams or it can be used at the hoisting mechanism of double beam crane, gantry crane, linear crane for material handling by industrial and mining enterprises, railways, and warehouses, etc. The lifting capacity of single speed electric wire rope hoist is 0.5 to 32 ton and the working class is M3 and M4.
Production description
1.High quality crane coupling is used in various hoist products supporting.
2.Reduce the transmission of shock loads from one shaft to another.
3. Integrated metal elastomeric couplings
4. Zero rotation clearance
5. High torque stiffness and excellent sensitivity
6. Free maintenance, oil resistance and corrosion resistance
