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1/2" (12.7mm) I.D. Dry Pellet Pressing Die - EQ-Die-12D-B

In stock
Item Number: DIE12DB

Quantity Discounts

2 to 5USD$303.95
6 to 9USD$287.95
10 or moreUSD$271.95

EQ-Die-12D-B is a 1/2" I.D. pressing die set for making 11-12 mm diameter sample pellets. The pressing die is made of high-stretched and highly polished carbon steel to achieve high hardness to meet the essential requirements of making ceramic or metal samples.


Model Number EQ-Die-12D-B
Maximum Load
(at room temperature)
12 metric Ton
930 MPa
Material HRC 60 - 62 hardened steel 
Ra 0.08μm highly polished steel
All pressing dies are made of high-stretched carbon steel to achieve high hardness to meet the essential requirements of making ceramic or metal samples. Otherwise, the pressing surface could probably get scratched.
A: Support Plate Thickness: 10mm
B. Sleeve O.D.: ⌀39.5mm
C. Die Sleeve Height: ⌀46mm
D. Sleeve I.D. : ⌀12.7 (1/4")+ 0.03-0.05mm 
E. Top Pressing Rod Body Length: 28mm
F. Top Pressing Rod Head Thickness: 5mm
G. Pressing Rod Diameter: ⌀12.7mm (1/2") ± 0.1mm 
H. Bottom Pressing Rod Body Length: 23mm
I. Bottom Pressing Rod Head Thickness: 7.8mm

Max. Working Temperature 280 °C
Weight 1.3 lbs.
Material Requirement
  • 32-75 Microns
  • Do not use this die set for pressing powder with a particle size of 30 microns or smaller; Small particles may slip into the gap of the die parts and damage the sleeve during the compression.
  • Ball mill or ground the powder to the size of 32~75 microns powder before pressing. Please consider using the 3'' Dia. Sieve Set No.200&450 Mesh to separate the 32~75 microns particles from the powder clumps.
  • For pressing sticky metal powders such as Al, Mg, and Zn, it is necessary to use dry or alcohol-based tool lubricant to lubricate the die and sleeve set to reduce friction during the compression. 
Package Content
  • One pressing die sleeve
  • One top-pressing die
  • One bottom-pressing die
  • One support plate
  • One die kit container
Safety Precaution
  • To avoid the risk of accidents and damage to the Pressing Die, please read these instructions carefully before installation and before using it for the first time.
  • Read the manual, especially the die installation schematic, before the operation.
  • Do not press flammable, explosive materials.
  • The operator must wear protective goggles.
  • You must have a hydraulic pellet press equipped with the Protection Cover, please click the pictures to the left to order.
  • To avoid damaging the die core and sleeve, we strongly recommend pressing powder with a professional laboratory hydraulic press to ensure the evenest pressing interface and uniform pressure force.
  • Dies with small diameters (≤12 mm) are more vulnerable to off-center compression, leading to pre-mature top pressing rod failure much below the rated load. Please have top/bottom plates in place and carefully align the die with the centerline of the press machine.
Pressing Die Installation Schematic / Instruction

  1. Mixing and grinding chemical powder by agate mortar or Ball Mill
  2. Calcine mixed the powder in a high temp furnace under a suitable temperature
  3. Crushing and Grinding calcined powder again by mortar or ball mill
  4. Put calcined powder into the die
  5. Pressing sample by a pressing machine under suitable pressure
  6. You may use CIP to press again to increase density by about 5 - 10%.)
  7. Take out the pellet sample from die
  8. Sintering the pellet under a suitable temperature
Application Notes

    • Use ethanol to clean the pressing die before and after use every time
    • Use anti-rust oil after the operation and store the kit inside the original box in a dry place to avoid rusting.
    • You may consider using EQ-BNMR for easy mold release. Please click the Pictures1 to order.
    • You may order a BN sleeve and die for electric insulation pressing.
    • Pressing Dies are consumable products and are not covered by MTI's warranty.
     Related Products

    Pressing Die  1/8" - 3" 
    Laboratory Mill & Mixer
    Powder grinding & Mixing
    Gravity Convection Ovens, Max. 300C
    Drying Ovens

    Calcining & Sintering

    Hydraulic Press

    CIP - Cold Isostatic Press
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    1. Prices listed online are valid for the US market and who pay by credit card only. There will be extra charges for shipping & handling. Prices vary from country to country.
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