Wire rope hoist case study: 3 typical wire rope hoist problems and solutions

wire rope hoist cases studies: 3 typical wire rope hoist installation and commissioning problems and solutions for your reference. Dongqi wire rope hoist improve your material handling efficiency and ensure your safety. Types of wire rope hoist are offered, i.e., electric hoists, low headroom hoist, variable speed wire rope hoist, explosion proof hoists, etc.

Wire rope hoist for your reference

Case one: Electric wire rope hoist lifting motor

Main specifications of electric wire rope host

• Wire Rope Hoist Lifting capacity: 2ton
• Wire Rope Hoist Lifting height: 120m
• Wire Rope Hoist Application: Building material handling.

Wire rope installation problem: Lifting motor has no action

With the installation manual of electric wire rope hoist, the client successfully finished the work and next is the wire connection. According to wire diagram, all the connections are seems no problem, client feedback that electric hoist traveling is normal, but the lifting motor has no action;

Try action 1: Check wire rope connection

Dongqi Hoist and Crane technically advises to check the wire rope connections and test each point of rope wires to make sure it is connected with power, unfortunately, this solution doesn’t take effect;

Try action 2: Try to connect the lifting motor with general power source

Electrical engineer gave suggestion to connect the lifting motor with the general power source directly to test the motor itself, but it is not easy to do this, because the hoist has been installed on the building

Note:

Dongqi Hoist and Crane sincerely advise to assembly and do commissioning of all the parts before mounting the wire rope hoist, it is easier to do adjustment at ground.

Try action 3: Check the power cable size

At last, Dongqi Hoist and Crane shares the third solution: to check the power cable size, after confirm with client, Dongqi Hoist and Crane diagnoses that the power cable size is too small to support the wire rope hoist lifting, and it is better to replace of the small size electric hoist cable by bigger one. Finally, it works and the lifting motor returns to normal condition.

Note:

The case is very typical if clients choose to install the electric hoist by themselves. In addition, repeat wire rope hoist testing and commissioning is very necessary, especially for wire rope connections. If you have any problem, please send email to sales@cranesdq.com or leave a message below.

Case two: low headroom electric wire rope hoist balance weight

Main parameters of the electric hoist

• Low headroom wire rope hoist Lifting capacity: 10t
• Low headroom wire rope hoist Lifting height: 5m
• Low headroom wire rope hoist Application: molds lifting and changing production hall

Low headroom hoist crane

Low headroom wire rope hoist installation problem: balance weight

Low headroom electric hoist is very popular with clients who has very limit space in their workshops. Due to the wire rope hoist is placed at one side of the crane bridge it can improve the lifting height and take full use of workshop space, with similar European design. the Low headroom electric hoist has very good performance during operation, but lower price comparing with European hoist, higher performance comparing with ordinary CD electric hoist, therefore, it is the first option among many clients.

Note:

Due to the low headroom electric wire rope hoist is installed on one side of the bridge and it is not balanced, there will be some steel scrap delivery with the low headroom hoist, some clients maybe don’t know this, when they see the scrap, they think it is the waste, and throw away. Actually, these scrap are balance weight for the low headroom hoist, it is used for level the other side, to make the electric hoist stable and balanced, the weight of the scrap is measured before delivery.

Note:

The scrap can also be replaced by stones, so if the scrap is thrown away accidently stones are the best replacement.

Case Three: electric hoist overload limiter installation and commissioning

Main parameters of the electric hoist

• Type: electric wire rope hoist
• Wire Rope Hoist Lifting capacity: 5 ton
• Wire Rope Hoist Lifting height: 14m
• Wire Rope Hoist Application: Power plant

Overload limiter Is part of the electrical connection, it should be installed according to the manual and the position is general on top of the wire ropes, after installation, correct commissioning is very important, or it will show wrong figures to lead to danger. Correct commissioning method is to make the empty hook 1m from the ground and reset the overload limiter to Zero position, then following operation is safe and in order.

All the above cases are collected from client’s feedbacks, Dongqi Hoist and Crane expects to continue to improve itself through communicating with clients and providing the most suitable economical solutions for clients, if you have any questions, please feel free to contact us.