Usually double-acting. Bore size range, 32 mm and greater.
For interchangeability and standard mounting dimension, see BS ISO 6432-8 to 25 mm bore, BS ISO 6431-32 to 320 mm bore--standard duty, double-acting, metric dimensions, BS ISO 15552 32 mm to 320 mm --Basic and mounting dimensions and accessories and BS ISO 21287 1000 KPa (10 bar) series--Bores from 20 mm to 100 mm.
"I developed the idea of a
double-acting ball screw, that is, one ball screw with a right-handed and left-handed thread, and patented it in 2000.
The gripper is offered in either spring-open or
double-acting style.
The column-style presses feature a
double-acting hydraulic cylinder and adjustable daylight.
The
double-acting press has movable upper and lower platens to improve the balance of flow in the mold.
They also feature integral hydraulic systems and a
double-acting cylinder for powered opening and closing.
A distinguishing feature of the DeltaRim machines is the use of
double-acting, hydraulically driven piston pumps that can process high-viscosity materials (up to at least 18,000 cp), filled and abrasive systems, polyurea, and other multiple-component systems.
The column-style press features opposed,
double-acting compaction cylinders, one operating from the top of the press, the other operating from the bottom of the press.