Spreader quality

Recently, a customer customized a set of balancing spreaders. When our master received the order, he first started making it according to the shape, specifications and models of the drawings, polishing-----welding-----painting-----inspection---- --Packaging------Delivery, after a week the master completed the task.

Cranes and rigging are components that directly bear lifting loads. The quality of their products is directly related to safe production, so the following safety regulations must be observed.

1. The purchase of hoists and rigging must be qualified products from professional manufacturers that comply with national regulations and provide various qualification certificates and quality certification documents.

2. For self-made, modified, repaired and newly purchased hoists and rigging, static load and dynamic load tests should be carried out in accordance with regulations.

Static load test: Take 1.25 times of the rated lifting capacity and add it gradually. Lift it to a height of 100-200mm above the ground and hang it in the air for no less than 10 minutes. After unloading, perform a visual inspection.

Dynamic load test: Take 1:1 times of the rated lifting capacity, work continuously for 1 hour according to the actual working cycle within the normal working range, and check whether all parameters meet the requirements of technical performance indicators.

3. The use of hoisting and rigging must meet the following requirements

(1) Spreaders and rigging should be adapted to the type, environmental conditions and specific requirements of the items being lifted.

(2) The spreaders and rigging should be inspected before operation, and they should be put into use only after confirming that each function is normal and intact.

(3) Before hanging, you should confirm whether the hanging connections set on the heavy object are firm and reliable. Before lifting operations, you should confirm whether the lashing and hanging are reliable.

(4) The spreader shall not exceed its rated lifting capacity, and the sling shall not exceed its maximum safe working load.

(5) Lifting objects, spreaders, and rigging must not be damaged during operation. If necessary, protective padding should be added between the lifting objects, spreaders, and rigging.

The picture shows the balance spreader