PTA-01 PTA-01 is heavy-duty ball milling machines enable very precise milling, in porcelain jars, even for relatively tough materials, wet or dry. The PTA-01 ball mill has a compact design that is ideal for small-scale production and is constructed using powder-coated steel for long-lasting durability. The PTA-01 accommodates one jar. Easy adjustments can be made to the sturdy roller bars to accommodate jars from 1-liter to 10-liters and comes standard with a breaker switch. Features Heavy-duty milling machine enables very precise milling Compact design, ideal for small-scale production Model construction is powder-coated steel for long-lasting durability Standard breaker switch Heavy-duty adjustable roller bars Accommodate jars from 1 – 10 liters 2 year warranty Motor 115V (60Hz) 180W Torque Approx 5Nm Shaft Rotational Speed 247rpm, Jar rotational speed 30rpm at 50Hz Dimensions 21″ x 17″ x 14″ Max Weight 33 kg = 72.75 lbs Ship Weight 66 lbs.