Grade 80 rigging
SLR012 Grade 80 Clevis Sling Hook
Grade 80 clevis sling hook with a cast latch, suitable for EN 818-2 Grade 80 chain, with working load limits from 1.12...
Grade 80 rigging
SLR094 Grade 80 Master Link Assembly
Grade 80 US type master link assembly used at the top of chain slings and steel rope slings, with working load limits from 2.36 t to 45 t for three and four leg assemblies.
- Grade
- Grade 80
- Material
- Forged super alloy steel, quenched and tempered
- Proof test
- 2.5 times the working load limit, individually
- Fatigue test
- 1.5 times the working load limit for 20000 cycles
- Crack detection
- 100 percent magnaflux
- Surface finish
- Powder plastified
Full specification, standards and testing detail below. CAD files are available on request via WhatsApp.
Product Overview
What The SLR094 Grade 80 Master Link Assembly Is
The master link assembly is the single point where a multi leg sling meets the crane hook. For chain slings the minimum ultimate load is four times the working load limit, and for steel rope slings it is five times.
Shandong Shenli Rigging is a well known rigging brand in China with a modern management level and the ability to manufacture medium and high grade rigging. The product range includes more than 1000 varieties, among which the G80 connecting link, G80 safety hook, G80 shortening clutch and G80 Tawgk have been patented. Carl Stahl China has cooperated with SLR for over 13 years, which is what lets us offer a more competitive price and a reasonable minimum order quantity on this range.
Key Benefits
Why Buyers Choose This Product
Every Piece Proof Tested
Individual proof testing at 2.5 times the working load limit rather than batch sampling, so each item that ships has been loaded.
Crack Detection On 100 Percent
Magnaflux crack detection is applied to every piece, which catches forging defects that a visual check cannot see.
Fatigue Tested For Repeat Use
Fatigue testing at 1.5 times the working load limit for 20000 cycles proves the item survives daily service, not just one pull.
Reasonable Minimum Order Quantity
A long standing relationship with the manufacturer gives a competitive price and a workable minimum order quantity.
Application Scenarios
Where It Is Used And Who It Is For
Application Scenarios
- Three and four leg chain sling assemblies
- Steel wire rope sling assemblies
- Heavy lifting and project cargo rigging
Who It Is For
- Chain sling assemblers and rigging houses
- Lifting equipment distributors
- Steel erectors and heavy contractors
- Project buyers sourcing complete sling sets
Problems It Solves
The Sourcing Problems This Product Removes
Rigging components arrive without traceable testing
Solution. Every piece is individually proof tested at 2.5 times the working load limit, magnaflux crack detected and marked with a batch number.
Minimum order quantities are unrealistic for a distributor
Solution. The long relationship with the manufacturer gives a reasonable minimum order quantity on this range.
Components from different sources do not match
Solution. The full Grade 80 programme comes from one manufacturer, so hooks, links, master links and chain assemble as a matched set.
Technical Features
Construction Standards And Specification
- Forged super alloy steel, quenched and tempered
- Individually proof tested at 2.5 times the working load limit
- Fatigue tested at 1.5 times the working load limit for 20000 cycles
- Breakage test on each branch
- 100 percent magnaflux crack detection
- All load pins are 100 percent individually inspected and tested
- Surface finish: powder plastified
- Colour code: Red RAL 3020 or Yellow RAL 1003
- Grade
- Grade 80
- Material
- Forged super alloy steel, quenched and tempered
- Proof test
- 2.5 times the working load limit, individually
- Fatigue test
- 1.5 times the working load limit for 20000 cycles
- Crack detection
- 100 percent magnaflux
- Surface finish
- Powder plastified
- Colour code
- Red RAL 3020 or Yellow RAL 1003
Specifications
Working Load Limits And Dimensions
| Item code | Chain size | WLL 3 or 4 leg 0–45° t | WLL wire rope t | A mm | B mm | D mm | Weight kg |
|---|---|---|---|---|---|---|---|
| 8-SLR-94-1/2 | 7/32 | 2.36 | 2.4 | 100±5 | 60±5 | 14±1 | 0.82 |
| 8-SLR-94-11/16 | 1/4 | 3.15 | 3.2 | 160±6 | 90±5 | 18±1 | 1.6 |
| 8-SLR-94-5/8 | 1/4 | 3.15 | 3.2 | 160±6 | 90±5 | 18±1 | 1.6 |
| 8-SLR-94-3/4 | 5/16 | 4.25 | 4.2 | 160±6 | 90±5 | 20±1 | 1.95 |
| 8-SLR-94-7/8 | 3/8 | 6.7 | 8 | 180±6 | 100±5 | 22±1 | 3.16 |
| 8-SLR-94-1-1/8 | 1/2 | 11.2 | 12 | 270±7 | 140±6 | 28±1/-2 | 6.75 |
| 8-SLR-94-1-1/4 | 5/8 | 17 | 17 | 270±7 | 140±6 | 32±1/-2 | 9.31 |
| 8-SLR-94-1-1/2 | 3/4 | 23.6 | 25 | 300±7 | 160±6 | 40±1/-2 | 18.4 |
| 8-SLR-94-1-3/4 | 7/8 | 31.5 | 31.5 | 340±4 | 180±6 | 45±1/-2 | 26.6 |
| 8-SLR-94-2 | 1 | 45 | 45 | 350±10 | 190±6 | 51±1/-2 | 42.91 |
Materials And Manufacturing
Materials, Process And Quality Control
Materials
- Forged super alloy steel, quenched and tempered
- Load pins individually inspected and tested
- Powder plastified surface finish in RAL 3020 red or RAL 1003 yellow
Manufacturing Process
- Hot forging of the body from super alloy steel
- Quenching and tempering to the Grade 80 specification
- Machining of the pin and latch seats
- Individual proof test at 2.5 times the working load limit
- Magnaflux crack detection, powder plastifying, marking and packing
Quality Control
- Forging material certificate verified on incoming inspection
- Quench and temper process records checked per batch
- Individual proof test at 2.5 times the working load limit
- 100 percent magnaflux crack detection
- Load pins 100 percent individually inspected and tested
- Marking and colour code checked before packing
Certifications And Customisation
What We Certify And What We Can Change
Certifications
- Manufactured for use with EN 818-2 Grade 80 chain
- Marking carries size, grade, WLL, manufacturer mark, CE mark and batch number
- Test certificates available when requested at the time of order
Customisation Options
- Blue area size: main link welded, sub links welded
- Yellow area size: main link forged, sub links welded
- Pressing flat for use with the SLR002 G80 omega link, on request
- Colour code Red RAL 3020 or Yellow RAL 1003
Use Guide
How To Use The SLR094 Grade 80 Master Link Assembly Safely
- Confirm the component size matches the chain size in the sling assembly.
- Check the marking for the size, the grade, the working load limit and the batch number before use.
- Withdraw any component with a crack, a deformed body, a bent pin or a missing latch.
- Never mix Grade 80 components with lower grade fittings in the same assembly.
- Keep the assembly clean and inspect it at the interval required by local regulation.
FAQ
SLR094 Grade 80 Master Link Assembly FAQ
What is the difference between the blue and yellow area sizes?
In the blue area size the main link and the sub links are welded. In the yellow area size the main link is forged and the sub links are welded.
What is the minimum ultimate load?
For a chain sling the minimum ultimate load is four times the working load limit. For a steel rope sling it is five times the working load limit.
Is a pressing flat available?
The pressing flat is for use with the SLR002 G80 omega link and is supplied only on request.
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Applications, Cases And Guides
Industry Applications
Next Step
Send Us The Sizes And We Will Quote
Tell us the working load limits, the lengths and the quantities you need and we will come back with a specification and a price. Drawings can be sent by WhatsApp or email.