Rotary Tablet Press Trials: Test With Your Own Powder
A buyer's guide to planning a rotary tablet press demonstration using the buyer's own powder, with practical questions on tooling, compression force, and acceptance testing.
Ask the supplier to run your own powder, not a demonstration blend, before you commit to a rotary tablet press. A machine with 5 die stations and a maximum compression force of 40 kN may behave very differently with a free-flowing granulation than with a fine, cohesive or moisture-sensitive powder, so the trial should use material from your actual process.
For the request for quotation, specify the powder you will supply, its intended tablet diameter up to the catalog reference maximum of 14 mm, and the target weight and hardness. Ask which tooling the supplier will fit for the trial and whether it matches your intended production tooling. During the demonstration, watch fill consistency across all 5 stations and ask how compression force is set and monitored against the 40 kN reference limit. Agree in advance what counts as a pass: for example, a defined number of tablets within your weight and hardness limits, run at a stated speed.
Before requesting a quote, confirm with the supplier what quantity of your powder the trial requires, whether the demonstration machine's tooling and 5 die stations match the offered configuration, how the 40 kN and 14 mm figures relate to the model being quoted, and what acceptance records you will receive.