... easy to operate and maintain best quality,resonable price New-type ring die pellet press machineCharacteristics1. Small ... straw etc. Everything which can be burning.6. Specification of the mould: 4mm, 6mm, 8mm, 10mm, 15mm; ... disadvantages( holding machine) pellet machine, the quality of finished pellet fuel is harder and combustion values bigger ... pellet press machine with the capacity of 4t per day