Master Links

Products Drawing

Specification (Click to the large image)

• Forged alloy steel
• Quenching & Tempering and Orange painted
• Proof load is 2.0 times the S.W.L. and Breaking load is 5.0 times the S.W.L.

1. General Theory

• Never apply more force than the link's assigned Safe Working Load(SWL/WLL) rating.
• Master links and master link assemblies are used for 1-leg, 20, 30 and 4 leg slings.
• Connecting links are used for grade 80 chain slings.

2. Before Using

• Must be take a provide personal protection equipment. (Such as footwear, gloves, Crash helmet, etc.)
• Working place always shall be the lighting.
• Shall be work, before remove dangerous article in the surroundings.
• Master link, master link assemblies and connecting links should be inspected before use to ensure that ;
  - the link and the assemblies are both identifiable as being of the same quality grade.
  - all marking are readable
  - links, assemblies and connecting links are undamaged, not distorted, unduly worn and free from nicks, gouges and cracks.
  - links, assemblies and connecting links should not be used in acidic conditions.
  - at a top angle bigger than 120°the tension in the chain increases considerably.
  - links, assemblies and connecting links may not be heattreated because this may effect the Working Load Limit and the material structure.
  - links, assemblies and connecting links in use should be subject to thorough examination by a competent person at least every 6 months.

3. Using

• Never make a wrong application of the rule. (Overloading & Improper use can result in injury.) (See Figure 3.)
• Over the 20kg weight products' using, must be use an appliance tool. (Forklift, crane, hoist, etc.)
• Where apply, must locate outside the danger zones. (A falling load may cause serious injury or death.)
• Never repair, alter, rework, or reshape a hook by welding, heating, burning, bending or grinding.
• For application ; how to assemble connecting link.

1. Place the locking sleeve between the assembled half link forgings.	2. Drive the pin through the assembled link ends and sleeve until the end of pin is flush with the outside of the connecting link halves.

4. After Using

• Should extreme circumstances or shock loading be applicable, this must be well taken into account on selecting the product to be used.