25mm Diameter ID 250°C Heated Die w/ Digital Controller

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Die set built with highly polished hardened steel. Comes with pellet ejector and thermal isolation plate (Item# SDS25.H)


SKU: 108 Category:

A set of 25mm diameter (ID) hardened steel dry pressing die set for pellet presses, ready for you to make 25mm diameter cylinder-shape pellets. Heating system with programmable digital temperature controller allows heating up to 250°C.


  • Electrical Requirements:  110V 60Hz 270 watts
  • Maximum Pressure:        70 tons
  • Maximum Temperature:  250°C
  • Rockwell Hardness:         Rc 62
  • Diameter (ID):                25 mm
  • Sleeve Diameter (OD):    92 mm
  • Sleeve Height:                45 mm
  • Total Height:                  105 (assembled without sample)
  • Thermal Plate Diameter: 105 mm
  • Max. Load Height:          25 mm
  • Temperature Step:         1°C
  • Temperature Sampling:  3 times per second
  • Accuracy:                      +/- 1%
  • Working Environment:     0-50°C, <35% RH humidity
  • Material:
    • Core die & push rod:          W18Cr4V hardened carbon tool steel
    • Sleeve, ejector & support:  Cr12 hardened carbon mold steel
  • Pressing Die Tolerance:   0.01-0.02 mm (10-20 micron)

Die set includes

  • Two 25mm ID cylinder-shape core dies made of highly polished hardened steel
  • One steel sleeve with PT-100 heater and sensor
  • One steel support plate
  • One thermal isolation plate
  • One push rod
  • One cylinder pellet ejector
  • One WK-1 digital temperature controller


  • Always wear protection goggles during operation
  • Clean the die set throughout with absolute ethyl alcohol and keep them in a dry box with silica gel after use to avoid rusting on the surface.
  • Never apply pressure beyond 70 tons

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