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These chains are built in accordance with ANSI B29.24 and are dimensionally identical to Standard Series Drive chains, but also incorporate pins produced from medium carbon alloy steel, through-hardened, to give the chains higher working load capacity and additional resistance to fatigue.
Additionally, these chains are produced with solid rollers for increased performance when loading is high, but speeds are slow. Users of these chains should be aware that wear life may be slightly reduced due to the material and heat treatment of the chain pins.
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Grade 80 alloy chain slings are often selected when operating under high temperature or rigged conditions that would abrade or destroy other types of slings. They are flexible, durable, long lasting, ductile, easy to inspect, collapsible for convenient storage, and will adhere securely to the contours of a load. The most advantageous feature of a chain sling is its ability to be repaired/ Nearly any damaged component discovered during an inspection can be repaired and restores to useful condition.
Load Estimation
In multi-leg slings, the angle between the legs is critical. The actual tension on each leg increases when the angle between the legs increases as shown in the diagram opposite. For this reason all general purpose chain slings are given a rating based upon use at 900 inc angle. The included angle between the legs should never exceed 1200.
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We supply a full range of grade 80 alloy fittings, our products include connecting link, eye self locking hook, clevis self locking hook, swivel self locking hooks, cradle clevis grab hook, eye hooks, master link, master link assembly, shortening clutch, shackle, etc.
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Ratchet Lashings are used for tying down loads whilst transporting , shifting or moving them. They have replaced traditional jute ropes, chains and wires used for transportation and for a variety of other applications.
The main advantages of ratchet lashings are :
1. Load restraint using a tensioning device (ratchet)
2. Effective and safe control of loads whilst transportation
3. Extremely quick and efficient tie down and release of load thus saving time.
4. No damage to the load being tied down.
They are available in a large variety of configurations of different ratchets of various capacities and end fittings. Pictures shown here are only indicative and not exhaustive.
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Hangzhou Donghua Chain Group Co., Ltd is the biggest chain manufactory in China. This company is specialized in producing all kinds of standard chains and special chains, e.g. A or B series chains, automobile chains, stainless steel chains, combine harvester chains, heavy-duty cranked link transmission chains, stereo garage chains and maintenance-free chains etc.
We can provide all kinds of Hoisting Chains such as Car parking chains, Leaf chains, Multiple plate bearing pin chains and Hoisting rollerless chains.
If you are interested in our products please feel free to contact us by e-mail.
zhangxb@dhchain.com
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VIP-Mini-hook VMH-4
A robust improved version. The safety latch engages in the tip of the hook and is thus protected against lateral bending.
With a triple coiled corrosion protected double leg spring. Connecting bolt and tensioning sleeve are pre-assembled.
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Chain guide:
- assists to avoid jumping of the chain
- lower chain wear - higher working life
- solid, hardened design
- dimensional proposals by RUD
- rounded leading edges
- arc of contact more than 150 degrees
Stripper with de-twister
- assists stripping of the chain from the pockets
- kept on plane horizontal and vertical links
- controlled entry of the chain into the pocket wheel
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THIELE hoist-chains are approved for hand-operated hoists and power driven hoists. They are available in bright, galvanised or yellow chromated.
For power driven hoists we recommend high wear resistant round steel chains in THK 8 finish. Our special case hardening process prevents premature wear.
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Flat lifting slings and round loops from PES of Zurrgurte from PES accessories of protection and round hoses PU-RS PU-SC PU-SG PU-coatings for flat lifting slings PU-FB anti-slide mats ARM ratchet documents, Kantenschoner RU KS KSP Ratschlastspanner, clamping bar
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Type
-Polyester round sling with two ply woven heavy sleeve
Technical specifications
-Colour coded according to EN 1492-2 & AS 4497
-Capacity stripes; each stripe is equal to 1 tonne capacity.
-The safe working load is clearly and continuously printed on the sleeve.
-Extra strong PU-impregnated webbing of the sleeve, which does not allow dirt to enter.
-Each sling is packed in plastic with CE declaration of conformity or Test Certificate.
Characteristics:
-Low elongation.
-Extremely wear-resistant.
Norms
-According to Machine Directive 98/37/EC & AS 4497
-Safety Factor: 7:1
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DSR and DSR C Ring / Double Swivel Ring
Double articulation allows it to line up perfectly with the sling
Two ways of tightening: either by open-ended spanner, or by Allen key
From M8 to M30 as standard; for loads from 0.3 t to 6.3 t
From UNC 3/8" to UNC 1" as standard; for loads from 1,200 lbs to 10,000 lbs
Other variants of fitting bolts on request
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Polyester slings are a smart choice due to their light weight, durability and flexible construction. The sling is dense woven polyester yarn. Web slings provide a degree of protection for loads that require safe and easy handling. The lift weight, flexibility and stretch of synthetic slings reduce fatigue and strain on riggers. Synthetic slings also provide for ease of inspection as well
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Type
-Double ply polyester webbing sling with reinforced lifting eyes
Technical specifications
-Colour coded according to EN 1492-1.
Characteristics
-Low elongation.
Norms
-According to Machine Directive 98/37/EC.
-Safety Factor: 7:1
-Safety Factor of 6:1 or 5:1 is available upon request
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