Laboratory

Press Leaders

Hydraulic, Bench Top Lab Presses From Carver, Inc.

AutoPellet Presses for Preparing Pellets, Bricks, Briquettes and Cakes

AutoPellet Hydraulic Bench Top Lab Presses.

The self-contained 25 & 40 ton AutoPellet press has 5" diameter platen and integral safety shield cabinet enclosing electrically powered hydraulic system. Rigid slab side construction maintains precise alignment and includes provision for a vacuum line connection to the pellet die. The AutoPellet presses have a programmable control system with 10 recipe storage capacity, with programmable decompression rates.


Carver Pellet Dies available in sample sizes of 6, 12, 13, 25, 31 and 40mm. (sold separately) Click here for details

Specifications of the Bench Top Auto Pellet Press Model 3887NE.L & 4387NE.L:

  • Your choice of clamping force in 25 & 40 tons (minimum 1,000)
  • Daylight Opening 1.5" – 7.25"
  • Stroke 1"
  • Rugged slab-side construction
  • Daylight adjustment wheel with swivel handle
  • Self-contained hydraulic unit
  • 5" diameter work area
  • Programmable setpoints for clamp force, dwell time and ejection force
  • 10 recipe storage capability
  • Programmable in units of pounds
  • Programmable decompression rates
  • Interlocked safety enclosure with hinged door
  • Available in 115V-1Ph or 230V 1-Ph supply voltage upon request
  • Electrical disconnect (non-fused)
  • Dimensions: 32.5"L-R x 19.75"F-B x 22" min. to 28" max.H, including handle (uncrated)

Available Options:

  • Force Calibration Certificate using equipment traceable to NIST (part #1525.0001) [each]
  • Floor stand 47"L-R x 22.5"F-B x 30"H Wt 280# (catalog #223219D)
  • Floor stand 47"L-R x 22.5"F-B x 30"H W/6" Casters Wt 280# (catalog #223229C)
  • 1/8 HP Vacuum pump (catalog #3874)
  • Evacuable 6mm Pellet Die Set (catalog #4417)
  • Evacuable 12mm Pellet Die Set (catalog #4946)
  • Evacuable 13mm Pellet Die Set (catalog #3619)
  • Evacuable 25mm Pellet Die Set (catalog #4369)
  • Evacuable 31mm Pellet Die Set (catalog #3902)
  • Evacuable 40mm Pellet Die Set (catalog #3876)
  • Spare parts kit (part #6315.17)
    • Three pints of hydraulic oil, push buttons, rod seal, polyseal, relays & fuses
  • Carver Special Hydraulic Fluid (Oil) (part #2170)
  • Hydraulic Vent Valve (solenoid/cartridge valve & coil) (part #6315.19)
  • UL/CUL Certified electrical panel available upon request as an option

Calibration Options Available

Force calibration (p/n 1525.00001) by instruments traceable to NIST are available for new equipment and new gauges. For existing equipment/gauges, please contact our Service Department to set up a Return Authorization Number by calling 260-563-7577, ext. 5238 or email This email address is being protected from spambots. You need JavaScript enabled to view it. for details.

Catalog NumberMax. Clamp Force, Tons (lb)Platen Size (in)Ram Stroke (in)Daylight Opening (in)Overall Size W x D (in)Height (in)Weight (lb)
AutoPellet 3887.NE.L 25 (50,000) 5 dia. 1 1.5 to 7.25 31.5 x 19.75 22 (+handle) 400
AutoPellet 4387.NE.L 40 (80,000) 5 dia. 1 1.5 to 7.25 32.5 x 19.75 22 (+handle) 450