X
Electric hoists represent their own machinery, strength, and toughness, while the stage is elegant, flowing, and soft, with conflicts and collisions between the two.
What is the basis for judging the scrapping of lifting chains?
Category : V7 Stage Electric Hoist
Get a Quote
Product Details
What is the basis for judging the scrapping of lifting chains?
As a professional manufacturer of lifting chains, we will provide you with a detailed explanation of the basis for scrapping lifting chains.
1. If the main ring is twisted more than 10 degrees from the non bending plane, it should be scrapped
2. The allowable wear value of the suspension chain shall not exceed 10% of the diameter of the circular link chain rod or the thickness of the auxiliary tool
3. The permanent elongation of chains and single rings shall not exceed 5% of their original length
4. Cracks, bending, or twisting in any part of the suspension chain, as well as jamming or stiffness between the ring hinges, which cannot be ruled out, are prohibited from use
What should be noted when selecting a lifting chain?
A suitable lifting chain is a prerequisite for ensuring safe use, so how should the chain be selected? The specific steps are summarized as follows:
1、 Observing the surface, products with no abnormalities such as corrosion or distortion are considered high-quality.
2、 Touch the surface with your hands and there are no abnormalities such as frosting or burrs.
3、 Estimate the tonnage of heavy objects and select a chain that is equivalent to their tonnage.
4、 Check the chain nameplate for any omissions or misprints. If not, it indicates that the product is functioning properly.
5、 Check the business license of the manufacturer, go to the factory for inspection, and understand the production process.
6、 Adding a heavy object to the lifting chain for load testing is the only excellent product that can fully pass the test.
RELATED PRODUCTS .
A professional hand pull hoist is a portable manual lifting device designed for stage and event rigging, used to lift, lower and suspend stage trusses, lights, speakers and other equipment without ele
The V7 Lighting Lifting Winch is a professional stage hoisting device engineered for lifting lighting, speakers, LED screens and other event rigging equipment. Widely adopted in concerts, theatres, ex
The stage electric hoist is a capable assistant on the entertainment stage. It has the ability to lift and lower rapidly, meeting the needs of frequent stage scene changes. It can quickly position equ
The electric hoist for stage trusses is a kind of lifting equipment used in the stage truss system, mainly used for lifting, lowering and moving various equipment and props on the stage truss. It is u
2026-10-26
创始人
0
PLASE Show 2026 Hanoi Vietnam
PLASE Show 2026, Hanoi, Vietnam ✨Tianjin Kemei Machinery (CMHO) took part in this great stage lighting & sound show. We were glad to welcome many business owners and pee...
2026-10-16
创始人
0
PLASE SHOW
PLASE Show Vietnam is almost here!Discover our professional stage electricchain hoists and rigging solutions. See youin Vietnam!Date : October 17-19,2026Booth: 08 ,hall 6
2026-09-29
创始人
0
Holiday Notice
Dear Valued Customers,Tianjin Kemei Machinery Manufacturing Co., Ltd. (CMHO) will observe a 7-day holiday from Oct. 1st to Oct. 7th.Should you have any inquiries during the ...
2026-09-25
创始人
0
Mid Autumn Festival Greeting
The Mid-Autumn Festival, a cherished traditional Chinese festival, stands as a symbol of reunion, harmony and gratitude.At Tianjin Kemei Machinery Manufacturing Co., Ltd. (C...
