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16C A2-5 Pull-Back Collet Block Pneumatic OR Hydraulic (65204-H)


In Stock

Your Price:

$2,675.00 USD / Each

A 4.625 (117.47mm)
B 6.938 (176.22mm)
C 5.750 (146.05mm)
D 1/2 SHCS
E 5.000 (127.00mm)
Spindle Size A2-5
Collet Series C
Actuation Style Pneumatic
Style 16C

This item is:

  • Made to order and may not be returnable or cancellable. Please contact ourcustomer service teamfor more information.


  • Maximum operating pressure – 250 psi air, 400 psi hydraulic (17 bar air, 27 bar hydraulic)
  • Draw tube force – 23 x line pressure
  • Collet capacity – 16C {1/16" to 15/8" (1.58 to 41.27mm) round}, 16C Step chuck up to 6" (152.4mm)
  • Thru-hole in base
  • Four thru holes for mounting with 1/2" screws
  • Two 3/8" (9.52mm) dowel holes in bottom of base
  • Two 1/4" NPT ports
  • 2-position, 4-way control valve recommended for hydraulic operation, 2-position, 3-way control valve recommended for pneumatic operation (not included)


  • 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 250 psi air or 304psi hydraulic (17 bar air, 20 bar hydraulic).
  • Make sure that the collet retains your material when the collet is closed.


This 16C collet closer 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.


  • Mount the collet block to a rigid flat surface.
  • 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.
  • 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.
  • Plumb your control supply to the 1/4 NPTF pressure port of the valve.
  • This configuration maintains a closed collet until the valve is actuated.


  • Remove the control supply from the valve.
  • Loosen the collet locking screw until the tip does not protrude into the piston guide threads.
  • Put a witness mark on the face of your collet in-line with the collet groove and then insert the collet in the top of the collet closer.
  • Using the collet wrench, turn the collet clockwise until it contacts the piston taper.


If, over a period of time, you experience a decrease in clamping force even though pressure remains unchanged, remove the collet block from service, disassemble, and replace any damaged or worn o-rings.

California Residents

WARNING: product can expose you to chemicals, such as lead, including one or more listed chemicals which are known to the State of California to cause cancer or birth defects or other reproductive harm.

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