Servo Screw Press

About Servo Screw Press

Screw is made of high-alloy forged, quenched and tempered
steel which provides longer screw life. The screw bearing in the
machine frame is a heavy-duty spherical flanged bearing.

Screw Nut

Screw nut is of special wear resistance bronze alloy fixed in the ram.
Thread geometry in the screw drive with optimized tooth profile and four
start threads, has already proved to be durable and tough in the past.

Motors and Driving System of the Press

The drive comes from two heavy-duty high torque motors linked via a bull gear to the external diameter of the flywheel. The press force is limited by a slipping clutch provided in the flywheel.

Safety

PARKASH Servo Screw Press is equipped with digital
tonnage monitor in which the force exerted in forming process is measured and recorded by strain gauges. When the maximum permissible force is exceeded, the
system displays a warning message and cycle stops, to prevent possible damage to the press. Photoelectric sensors mounted on both columns front and back.

Ram and Guiding System

Ram is of high-quality cast steel and is guided in four guides at
45 degree with continuous lubrication, so that it is able to
maintain constant clearance in spite of heat expansion. Bronze
and steel are used as guide pairs.

Advantages over hydraulic double actions:

• Increased production capacity due to superior reliability and improved performance.
• Large working capacity/safeguarding by means of overload protection.
• Exact adjustment and maximum repeat accuracy of the energy output.
• Wide range of stroke control options.
• Optimized, exact ram guidance.
• Optimum controllability of the forging process
• Reduced energy consumption and noise emission.
• Long lifetime and operational safety due to robust design.
• The spring stiffness of the frame is precisely adjusted by pre-tensioned tie rods.
• High press stroke rate even at low forming energies.
• Low maintenance and service costs