comparison hand chain hoist and lever hoist

manual hoist can be divided into lever hoist, chain hoists.
Lever hoist is to get a line to match the load traction by means of leverage through human lever handle, a clamp body rotation movement of the load acting on the inside, driving load operation.
Lever hoist with a compact, light weight, small size, portable, safe, reliable, long life, small lever force, reducing wear and tear on the rope, and other advantages.

Hand chain hoists work by drag chains, bracelets wheel rotation, the ratchet friction plate, brake pressure into one common rotating seat, 5-toothed wheel to rotate the major axis, 4-toothed minor axis and gear spline hole.
Hand chain hoist with safe, reliable, easy maintenance, high mechanical efficiency, small bracelets tension, light weight and portability, small size and beautiful appearance, durability, and other characteristics.

1, hand chain hoist and lever hoists which more effort?

A: Hand hoist is designed primarily to deal with the use of small space or not good posture rally, hand hoists are generally used as transverse tensile and transverse use effort, hand chain hoists are used vertically, perpendicular to the use of labor-saving. Lever hoist is driven not by pulling the chain, but with a joystick.

2, hand chain hoist and lever hoists which application is more widely?

A: The free gear lever hoist, lever hoist brake pull you into neutral when you like a hand to pull the heavy chain will be very easy to pull down, or pull back for easy adjustment lever hoist and towed distance for quick traction or lifting. Also compared with the same lever hoist, hand chain hoist lifting specifications volume, lever hoist to be much smaller than the Hand chain hoist, lever hoist with its wider range of applications from more efficient functional sense.

this blog is published by China Material Handling Equipment supplier - PAWELL MACHINERY MANUFACTURING INC. who provide Electric Hoist Equipments, Manual Hoisting Equipments, Lifting Clamps, Lifting Slings, Crane System, etc.

Hoist lifting devices

Pawell provides very wide ranges of hoist lifting devices to meet the needs of lifting in many industrial fields, such as factories, mines, farms, construction sites, wharves, docks, etc. With advanced, compact and modularized design, and integrated components, now we can provide electric wire rope hoist with capacity of 2t~12.5t, electric chain hoist with capacity of 0.5t~10t and manual trolley specially recommended for loads between 500 to 5000 kg. As a professional hoist lifting manufacturer, we can offer high-quality products doing good performance on lifting height and space and making accurate positioning and efficient operation, with safe, reliable and easy maintenance.

For more useful details, please email us at info@pawell.us.

Industrial Lifting Hoist Equipment

Basic Info.
Model NO.: Electric Wire rope Hoist
Condition: New
Power Source: Electric
Sling Type: Wire Rope
Application: Industrial and construction fields
Certification: ISO 
Export Markets: Worldwide

Product Details:
1 Shell: Made of light but hard die-cast aluminum alloy.
2 Motor: Adopt the Side Magnetic Series YEP Braking Motor.
3 Gear: Made of alloy steel by carburizing quenching treatment, to reduce the noise and guarantee high efficiency of transmission.
4 Inverse phase sequence protecting device: Controls the circuit not to work in case of wiring error in the power supply.
5 Side Magnetic Braking Device: Allows instant brake as soon as the electric power is cut off.
6 Chain bag: Light, attractive and durable.
7 Chain: FEC G80 chain
8 Hook: Hot forging with perfect strength that is hard to break.

Features:
1. Designed with tight structure
2. Work with low noise and high working efficiency
3. Designed with the inverse phase sequence protecting device to control the circuit in case of wiring error in the power supply
4. Side magnetic braking device to allow instant brake once the power is off.
5. Voltage lower protection function
6. High-quality and durable
7. Easy to operate loading the goods at accurate location

Jib Crane In Wall Type

Wall type jib crane only need to install on the wall or column, and without any ground area. Column jib crane has the advantages of small occupation area. It can fix with method of embedded anchor bolts or heavy anka bolt. This jib crane could shorten handling time and improve the working efficiency. Workers can lift and handle all kinds of equipment at any time. That could reduce non productive work time and labor intensity of workers greatly.

If you only want to convey equipment or workpiece at small range, you may consider to use jib crane. In some workshops, every worker has a jib crane. So there is no need for large investment vehicle. While the working efficiency also has been improved.

Converter used in the system of this jib crane has automatic operation mode with energy-saving. It could improve power factor and operating efficiency of the whole machine greatly. Wall type jib crane has monitoring system with a panel which is all in Chinese. So it is very convenient to technical personnel. System in wall type jib crane has hook safety monitoring. You can ensure product safety in the decentralization process. And you can easy do goods para.

wall type jib crane

Fault In Overhead Crane System

Phase failure in overhead crane system is caused by main control circuit of electric appliance damaged. In order to solve this problem, we will protect the equipment with maintenance mainly to prevent burning motor. So the equipment motor must be disconnected effective from power line. Only you ought to offer is sending electricity to main control circuit. Then you can start or stop. If you have been checked and analysis controlled electric appliance, it will not cause the problem of phase failure.

Sometimes the overhead crane race to the top, we should take proper measures to solve this problem. At first, it may be caused by limiter of the system. The limiter has been controlled the hook up and down. Besides the operator who negligence make the problem. When people installing the overhead crane system, they forget to do corresponding modulation to controller order. That will lead to hidden danger for limiter contacts and even occur the phenomenon of top punching.

Certainly the overhead crane system could not be checked and repaired for long term. Without these maintenance, the limiter also exist many hidden danger, even the parts on the system will be loosen.

Lifting And Operation Mechanism Of Electric Hoist

Electric hoist is composed by three parts. They are lifting mechanism, running mechanism and electrical device. Lifting mechanism makes the wire rope drives the hook device rising or falling. That rotate with hollow axle driving drum through speed reducer.

Speed reducer are all adopt helical gear with three stage reducer. Gear and shaft are processing of alloy structural steel or oil steel. Then the speed reducer processed by hot treatment to ensure it could be reliable and service life. The box body and cover are made of cast iron. It usually has good shock absorption performance and reliable sealing.

Drum using seamless steel manufacturing. It uses spline transmission power. Drum shell is welded by steel plate. The The reel device is the core part of gourd. The plates is connect with operation mechanism. Both sides are connected with the lifting gear motor respectively. The wire rope and hook device is in combining working. Installing a limited guide rod device above the front shell. The hook is forging by steel which is in high quality. The running mechanism consists of electric car,running  motor, reducer, driven car and other components. Running mechanism make the motor do reciprocating movement through the side plate and the reel device.

Why Does Electric Chain Hoist Out Of Control

Sometimes electric chain hoist out of control due to wrong operating. Some workers like to connect and disconnect the motor o start current very frequently. That will lead to shorten the service life of contactor. At the same time, it will leave hidden danger for safely operating of electric chain hoist.

There are many other reasons that make electric chain hoist out of control. For example, there is without broken firearms, it may cause not safely lifting. Broken firearms is a necessary equipment to ensure the electric chain hoist working safely. In other words, without broken firearms is easy to be out of control. With the broken firearms, electric chain hoist will cut off the power in time when the hoist exceed the upper or lower limit. Of course you must equipped with a good control button. An unqualified button is easy to breakdown.

What’s more, selecting a good contactor is very important. Some manufacturers produce contactors with bad quality. Its main contacts far less than the national standards. It is very easy to stick together. In fact, this bad one could not be satisfied with using. Once the main contacts stick together, electric chain hoist will be out of control.