Free shipping on Die Sets to UK. Questions to info@pelletpressdies.co.uk

8 mm Pellet Press Die Set
8 mm Pellet Press Die Set
8 mm Pellet Die Sleeve
8 mm Pellet Die Spacers
8 mm Pellet Press Die Set
8 mm Pellet Press Die Set

8 mm Pellet Press Die Set

Regular price
£220.00
Sale price
£220.00

Pellet Die set for making 8 mm (0.315 inch) pellets from powders. 

With your die set order we’ll include:

  • Die sleeve
  • Plunger rod
  • 2 x spacers
  • Base plate
  • Aluminium release ring with cutout for viewing pellet during release

Shipping: Free fast shipping across USA and Canada

Material: hardened tool steel (Rockwell hardness >C60) polished to a high tolerance fit.

8 mm Pellets Dies have a range of applications. as with 6 mm die sets, 8 mm pellet dies are commonly used for making KBr pellets for FTIR analysis, in which small quantities of powders are mixed with Infrared-transparent KBr (Potassium Bromide) powder before pressing into a pellet and transferring into the FTIR.

High compressive stresses can be applied to powders in the 8 mm pellet die sets using low pressing forces. Whilst this can be useful for quickly making pellets, always stay under the recommended load and make sure you stay safe. If you don't have a hydraulic press, for the lower diameter die sets, pressing force can be applied manually with a lever press or arbor press. If you need a slightly difference size for your application.

Die made of hardened tool steel (Rockwell hardness >C60) for long lasting trouble free performance. Sleeve is polished to high tolerances to allow the hardened tool steel plunger to slide through perfectly. Plunger and spacers are made from high yield strength steel, machined and polished to high tolerance for the perfect fit. Interior surfaces ground to mirror-like finish.

For an animation of die assembly, powder pressing and release click here.

Yield Strength Hardened Steel 80,000 psi (550 MPa)
Recommended max loading @ 50 % 40,000 psi (275 MPa)
Recommended max force 3115 lb (1.56 ton, 14 kN)
Typical force for quality pellets 390-1170 lb (0.19-0.58 ton, 2.4-7.3 kN)
Die sleeve inner diameter 8 mm (0.31 inch)
Die sleeve height 40 mm (1.57 inch)
Die sleeve outer diameter 45 mm (1.77 inch)
Assembled height with spacers (w/o powder)* 89 mm (3.5 inch)
Assembled height no spacers (w/o powder)* 73 mm (2.87 inch)

*If making thicker pellets, the die set can operate just the same without spacers.

Safety:

  • Always wear googles and safety protection equipment
  • Clean well after use to prevent rusting.
  • Do not apply pressure beyond shown on table.
  • See our tips for making perfect pellets here.

D2 Tool Steel. For most pellets this material will be perfect for the job. Hardened D2 tool steel  (Rockwell hardness >C60) for long lasting trouble free performance. The sleeve is polished to high tolerance to allow hardened tool steel plunger to slide through perfectly. Plungers and spacers are made from high yield strength steel, machined and polished to high tolerance for the perfect fit. Interior surfaces are ground to mirror-like finish. Release ring is made of aluminum. 

Stainless steel. For a die set with great corrosion resistance and with for those heating for heating their dies up to max 250°C (482°F), this is a great choice. Stainless steel is a more expensive starting material and is slower to machine which leads than a slightly higher costs than our regular die sets. Our stainless die sets are heat treated for high hardness (~58) and have extremely high strength (160, 000 psi).

Die sleeve inner diameter
8 mm (0.31 inch)
Die sleeve outer diameter
45 mm (1.77 inches)
Typical force for quality pellets
390-1170 lb (0.19-0.58 ton, 2.4-7.3 kN)
40mm height
75mm height
Die sleeve height 40 mm (1.57 inches)
75mm (2.95 inches)
Assembled height with spacers (w/o powder)* 94 mm (3.70 inches)
129 mm (5.80 inches)
Assembled height no spacers (w/o powder)* 74 mm (2.91 inches)
109 mm (4.30 inches)
Typical Max pellet length**
15 mm (0.60 inch) 35mm (1.40 inch)
D2 Tool Steel Stainless Steel
Yield Strength Hardened Steel 80,000 psi (550 MPa)

160,000 psi (1100 MPa)

Recommended max loading (@ 50%) 40,000 psi (275 MPa) 80,000 psi (550 MPa)
Recommended max force
3115 lb (1.56 ton, 14 kN)
6230 lb (3.1 tons, 28 kN)
Typical force for quality pellets
390-1170 lb (0.19-0.58 ton, 2.4-7.3 kN)

*If making thicker pellets, the die set can operate just the same without spacers.

**Pending on the material you are pressing with and the method of loading the die set.

Recommended max force = Is the maximum force you can put the die set under. This includes a 50% safety margin which is industry standard.

Typical force for quality pellets = This is the range we recommend using that will get you a great pellet and is much less than the recommended max force.