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 Series
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 .
An entertainment electric chain hoist is a motorized chain hoist designed to lift stage equipment — truss, lighting and LED screens — quietly and precisely.
A complete set of professional stage electric chain hoist matched with heavy-duty flight case. The custom flight case provides shock protection for safe transportation and storage of the stage hoist,
Our G100 stage lifting hoist features Grade100 high-strength alloy chain, excellent tensile strength, dual brake and IP66 waterproof for safe stage rigging.
A dedicated electrical control enclosure for stage electric chain hoists. It serves as the operation hub to control hoist lifting, lowering and stopping, with built-in safety protections. It supports
2026-09-16
创始人
0
PLASE SHOW Vietnam Professional Lighting Sound Exh...
Tianjin Kemei Machinery Manufacturing Co., Ltd is honored to participate in PLASE SHOW Vietnam, the most influential professional exhibition for stage lighting, audio and ri...
2026-05-14
创始人
0
2026 Prolight Sound
Prolight + Sound Guangzhou 2026 will grandly kick off from May 28 to 31! We sincerely invite all new and old customers to visit our booth for inspection and business negotia...
2026-04-27
admin
0
The Invisible Cloak of Stage Electric Hull
The stage electric hoist is a commonly used lifting tool when building a stage. It has a compact appearance and is easy to use
2026-03-18
创始人
0
2026 GET SHOW
Our company will make a major appearance at the GETshow Guangzhou (International) Performing Arts Equipment, Intelligent Acoustic and Optical Equipment Technology Exhibition...
