STEVENS Chain Vise Clamps

Stevens Engineering Chain Clamps are a unique way to hold any round work piece on a machining center. Use in combination with our Vee-Blocks to clamp a wide range of sizes. Shown below there are three styles of Chain Clamp : Standard Duty, Heavy Duty, and Heavy Duty – Long Stroke.

Standard Duty Kit #20149 (clamping force up to 6,000 lbs.) – includes a cam-locking hook assembly P/N 20150, a take-up unit P/N 20151 for adjusting chain tension, and a chain set P/N 20152. Any length chain up to 40 inches can thus be quickly assembled for various workpiece diameters.

Kit 20149 includes:

• (1) 20150 Cam-Locking Hook Assembly
• (1) 20151 Take-Up Unit
• (5) 10421 Chain Clamp Shoes
• (1) 20152 No.50 Chain Set

Heavy Duty Kit #HD20149(clamping force up to 12,000 lbs.) – includes a cam-locking hook assembly P/N HD20150, a take-up unit P/N HD20151, and a chain set P/N HD20152. The heavy duty kit includes 64 inches of chain.

KitHD20149includes:

• (1) HD20150 Cam-Locking Hook Assembly
• (1) HD20151 Take-Up Unit
• (5) HD10421 Chain Clamp Shoes
• (1) HD20152 No.80 Chain Set

Heavy Duty – Long Stroke kit #HD20149L (for chain lengths over 60″)

• For large workpieces that require over 60″ of chain, the amount of stretch starts to diminish the clamping force of the cam-lock due to the fixed amount of stroke. With the ‘Heavy Duty Long Stroke Clamp’ there is .750″ of stroke to accommodate much longer chains and has the same clamping force as the HD20149. It is also useful for parts which are thin-walled or otherwise easily deflected.

Kit HD20149L includes:

• (1) HD20261 Long Stroke Hook Assembly
• (1) HD20151 Take-Up Unit
• (5) HD10421 Chain Clamp Shoes
• (1) HD20152 No.80 Chain Set with an additional 30″ section of chain

Features:

• Fast initial setup. Socket head cap screws are used for mounting each end of the chain clamp to a subplate or T-slotted table.
• Additional lengths of roller chain may be added for holding extra large workpieces.
• Since workpiece sizes vary, differing lengths of chain may need to be assembled. Hitch pins are included in the kit and are used to assemble varying lengths of roller chain to fit different workpiece sizes. Hitch Pins which replace spring clips allow quicker and easier assembly & disassembly of chain sets.
• Plastic shoes P/N 10421 or 10421HD snap into chain to protect finished surfaces.
• Five pieces per package.
• One package is included in chain clamp assembly.
• The Modular fixture above utilizes two chain clamps to secure the valve body casting. A standard Allen wrench is used to operate the cam-locking hook assembly.

Drawing Details: