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Morse - O - Tool

FFBE Round Compression Force Calculator

Instant tablet area, shape factor, and compression forcem (kN & U.S. tons)

This Enhanced FFBE Round Tablet Calculator automatically determines allowable pressure based on cup depth, then calculates plan area, shape factor, and compression force for S7, O1, and D2 tooling types.

Diameter of the round tablet.
Concavity depth of the punch face.
Auto calculates pressure based on Cup Depth lookup table.

Cup Depth to Allowable Pressure Table

Cup Depth (mm)Allowable Pressure (kN/mm²)Concavity Level
0.178 - 0.3050.463 - 0.348Shallow
0.305 - 0.4320.348 - 0.289Standard
0.432 - 0.5590.289 - 0.252Deep
0.559 - 0.6350.252 - 0.235Very Deep

Higher cup depths (deeper concavity) require lower pressures to prevent tooling damage.

Note: Formula uses circular area calculation (π × r²). S7 shows exact calculations, while O1 and D2 show 90% of S7 force values. Always validate with your SOPs and press vendor limits.

Disclaimer: Results are approximate, we assume no liability for their accuracy

FAQ

How is round tablet area calculated?

Plan area A = 0.785 × W², where W is the diameter. This is equivalent to π × r² where r is the radius.

How is pressure automatically calculated?

Pressure is determined using a Cup Depth lookup table. Higher cup depths (deeper concavity) require lower pressures to prevent tooling damage and ensure proper tablet formation.

What is the shape factor for round tablets?

Shape Factor (S/F) = D ÷ W, where D is cup depth and W is diameter.

Which units does the calculator output?

Force in kN and U.S. short tons (1 kN ≈ 0.112404 short tons).

What's the difference between S7 and O1/D2 steel?

S7 steel offers 100% force capacity with high toughness. O1/D2 steels provide 90% of S7 capacity but offer different wear characteristics and may be more cost-effective.