Why RUD VIP?
An up to 30 % increase in the WLL
Material CrNiMo alloy steel, specially tempered, to provide high toughness. Minimum breaking elongation less than or equal to 25 % in natural black, less than or equal to 20 % in pink coated. Owing to a special heat treatment procedure developed by RUD, the highly dynamic VIP-chains are less sensitive to mechanical abrasion and damage.
Quality class 8 chains whose nominal diameter exceeds 18 mm can be substituted by a size less nominal diameter chains in VIP quality, giving the same WLL despite a 50 % weight reduction.
The pink powder coating changes its colour with temperatures exceeding 200°C. Chain should not be used after being subject to temperatures exceeding 400°C. At this temperature the VIP colour changes to a deep black with small bubbles, clearly indicating that it has been over-heated.
Verification of quality
At regular intervals, the chains are stamped with a serial and batch number. This identification ensures a continuous record tracking of the manufacturing and proof load data, even after a period of 10 years.
The proven clevis connection system has been further enhanced with the new VIP range. With its dimensional adjustments and colour arrangement of the chains and their components, a foolproof assembly is assured. Clevis dimension "X" avoids the connection of a larger VIP chain. VIP chains are manufactured with tighter tolerances in the inner width (W1 dimension below). The conneciton bolt diameter (Y dimension below) avoids the connection of the next smaller VIP chain size.