Recently we received inquiries from Nigerian customers. The customer wants a 15-ton Chain Hoist and Wire Rope Hoist.
When we communicate with customers, many customers do not know how to choose a hoist. Yuantai Crane will give you a summary as following:
Simply put, the electric chain hoist is a chain hoist. Generally, electric chain hoists can be used within 5T, and electric wire rope hoists are generally used for those exceeding 5T. Electric chain hoists are used a lot in the production line, which is easy and convenient.
Electric chain hoists and wire rope electric hoists are actually very good electric hoists, the key is to see where you use them?
This is also based on the different working environment and requirements used by each customer, to select various models and specifications of electric chain hoists and wire rope electric hoists, like general electric chain hoists are mainly suitable for It is used by small and medium-sized enterprises such as factories, logistics, and processing plants. The wire rope electric hoist is mainly used in metallurgy, mining, coal mines, railways, construction, and special environments (high temperature, flammable and explosive) and other places.
Summary of questions of Electric Hoists:
Q: What should be paid attention to when hoisting wire rope slings?
Answer: The precautions for hoisting the wire rope sling are as follows
1. If it is a single-leg sling, the hanging point must be vertically above the center of gravity of the object to be lifted;
2. If it is hoisted by two legs, the hoisting point should be located on both sides of the cargo, and the hook should be above the center of gravity of the hoisted object.
3. For three-leg or four-leg hoisting, the hoisting point must be evenly located on the plane around the cargo, and the hook is located directly above the center of gravity of the hoisted object.
How to install the sliding wire of electric chain hoist?
1. The electric hoist is mostly installed on the U-shaped track. According to this feature, the steel cable is arranged in the middle of the track and the upper part of the I-beam. The steel cable adopts q~10mm steel wire rope or round steel, and the end is fastened with turnbuckle bolts.
2. The sliding ring is interlocked with two rings, with a certain margin to avoid scratching of the steel cable. The steering ring is connected by bolts for two circular rings, which can rotate freely.
3. Put one end of a steering ring on the steel cable, and fix the rubber sleeve on the lower end of the steering ring after leaving the motor lead wire. One end of multiple sliding rings is passed on the steel cable, and then the rubber sleeve line is fixed on the lower end of the sliding ring in sections. The front end is connected to the motor and can move freely. The rear end is connected to the power supply.
4. Under the traction of the motor, with the steering ring as the center, the traction cable moves in a straight line or in a circle.
5. The above method can also be used for straight track.
This method is simple and easy, and the cost is low. Since the beginning of use, there has been no failure so far. Eliminates the problems of poor contact of sliding wires, short circuit of lead wires, and open circuit in the past. Now widely used, the effect is good.
How to conduct an operation test before using the electric chain hoist?
Answer: There are five steps in the operation test of the electric chain hoist before use:
1. Definitely press the down button and operate the crane to descend until the limit spring touches the limit switch, then the motor will stop automatically.
2. Definitely press the upper button until the chain is completely retracted into the chain bag and the motor stops running.
3. Test the function of the emergency stop switch: Press and hold the up or down button at will, and press the economic stagnation switch at the same time, and check whether the hook understands the stop action when the economic switch is pressed. And when the emergency switch is pressed, when other buttons are pressed, there will be no response
4. Check the lubrication of the heavy chain (the load chain has been lubricated before leaving the factory, but it may be dried during transportation). Any lube may be used to lubricate the chain. It is recommended that you maintain a small amount of lubricating oil in the chain bag, so that the chain in the chain bag can be immersed in the lubricating oil.
5. Check the directionality of the chain. All welding points should be in the same direction, only when all chain welding points are on the same line, can it be completely correct operation.
