Stokes Model 521 (F-4)

Dual Motion Compacting Press

Compacting Press

(Only available remanufactured.)

The Stokes Model 521 (F-4) is a 4-ton single station, dual motion compacting press. Pressure is exerted from above by means of an eccentric motion and from below by means of a cam. Pressure is applied in both directions simultaneously for a uniform density gradient throughout the piece. It is ideally suited for producing compacts for many different applications.

Design Features

  • All movements of the press are mechanical resulting in repeatibility, low maintenance and maximum output.
  • Precisions alignment of the upper punch is maintained by mounting the crosshead in heavy-duty adjustable V-Gibs.
  • Hardened wear parts are used at critical areas for longer life
  • Press is built to resist abrasive materials
  • Simple set up
  • Press can be operated manually and with jog provisions
  • Machine is furnished with pneumatic clutch & brake
  • Stationary core rod provides additional versatility for producing hollow parts as well as parts with blind holes or counter bores (optional).
  • Centralized lubrication delivers a supply of lubricant to all wearing surfaces throughout long periods of use.
  • Combination magnetic starter with fused disconnect is furnished
  • Machine is filled by gravity hopper
Technical Specifications:

Max. Operating Speed (compacts/min.) 25 – 55
Max. Diameter of Piece (in.) 1 ¼
Fill Depth – Range (in.) 1 ¼
Max Pressure About and Below (tons) 4
Die Diameter (in.) 2
Stationary Core Rod Supporting Pressure (tons) 1 ton
Upper Punch Max. Die Entrance (in.) 9/16
Die Table Supporting Pressure (tons) 3
Power Required (hp) 1