3C Low-Pressure Dead-Length Collet Blocks
Instructions B-143
Hardinge Inc. One Hardinge Drive, Elmira, New York U.S.A. 4902-507 800.843.880 (Canada 800.468.5946) www.hardingetooling.com
Par
t No
. B -0009500-0
43
3C Collet Block
Low-Pressure, Pneumatic or Hydraulic, Double Acting, Dead-Length
Part No. 7799-00-00-000089
Specifications
• Maximum operating pressure – 250 psi air, 750 psi hydraulic
(17 bar air, 51 bar hydraulic)
• Draw tube force – 1.2 x line pressure
• Collet capacity – 3C {
1
/
64
” to
1
/
2
” (.39 to 12.7mm) round}
• Thru-hole in base
• Four 1/4-20 mounting holes in bottom of base
• Two
3
/
16
" (4.76mm) dowel holes in bottom of base
• Two 1/8-27 NPT ports
• 2-position, 4-way control valve recommended for hydraulic operation,
2-position, 3-way control valve recommended for pneumatic operation (not included)
Safety
• Do not over tighten the mounting hardware or the plumbing fittings.
• When installing a collet in the closer, do not over tighten the collet.
•
Do not exceed maximum operating pressure of 250psi air or 750 psi hydraulic (7 bar air, 5 bar hydraulic)
• Make sure that the collet retains your material when the closer is closed.
Application
This 3C collet block is a stationary unit with a double-acting cylinder. It is effective on machine and assembly operations that
require reliable clamping and unclamping. Use the collet block as a single unit or mount multiple closers on rotary tables,
pallets, fixtures or tombstones for increased productivity.
Installation
1. Mount the collet block to a rigid flat surface.
2. Plumb your first supply line using 5000 psi (344 bar) rated steel tubing to the CLAMP 1/4 NPTF port of the
collet block and the normally OPEN 1/4 NPTF port of your control valve.
3. Plumb your second supply line using 5000 psi (344 bar) rated steel tubing to the UNCLAMP 1/4 NPTF port of
the collet block and the normally CLOSED 1/4 NPTF port of your control valve.
4. Plumb your control supply to the 1/4 NPTF pressure port of the valve.
5. This configuration maintains a closed collet until the valve is actuated.
Operation
1. Remove the supply from the valve.
2. Loosen the collet locking screw.
CL
AMP
UNCL
AMP
