Ball Screw Press

Cambridge Dynamics offers a range of servo driven ball screw press units for forming and punching operations. Control is via Fanuc or Mitsubishi controls as per the customer’s preference. All machines are CE marked and are provided with documentation in English.

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Standard Sizes

The following standard frame sizes are available:

020 Frame

Press Force No. of Screws Rapid Speed4 Stroke1 Max Platen Size2 Accuracy3
5T 1 6000mm/min Up to 1.5m 0.8m x 0.8m 0.05mm
10T 2 6000mm/min Up to 1.5m 0.8m x 1.6m 0.05mm
20T 4 6000mm/min Up to 2m 1.6m x 1.6m 0.05mm

030 Frame

Press Force No. of Screws Rapid Speed4 Stroke1 Max Platen Size2 Accuracy3
15T 1 3000mm/min Up to 1.5m 0.8 x 0.8m 0.05mm
30T 2 3000mm/min Up to 1.5m 0.8m x 1.6m 0.05mm
60T 4 3000mm/min Up to 2m 1.6m x 1.6m 0.05mm

040 Frame

Press Force No. of Screws Rapid Speed4 Stroke1 Max Platen Size2 Accuracy3
20T 1 1500mm/min Up to 1.5m 0.8 x 0.8m 0.1mm
40T 2 1500mm/min Up to 1.5m 0.8m x 1.6m 0.1mm
80T 4 1500mm/min Up to 2m 1.6m x 1.6m 0.1mm

 050 Frame

Press Force No. of Screws Rapid Speed4 Stroke1 Max Platen Size2 Accuracy3
30T 1 1500mm/min Up to 1.5m 1m x 1m 0.1mm
60T 2 1500mm/min Up to 1.5m 1m x 2m 0.1mm
120T 4 1500mm/min Up to 2m 2m x 2m 0.1mm

060 Frame

Press Force No. of Screws Rapid Speed4 Stroke1 Max Platen Size2 Accuracy3
40T 1 600mm/min Up to 2m 1.5m x 1.5m 0.1mm
80T 2 600mm/min Up to 3m 1.5m x 3m 0.1mm
160T 4 600mm/min Up to 3m 3m x 3m 0.1mm

1 See Fig below for aperture dimensions

2 Standard platens, other sizes available on request

3 Repeatability ±0.02mm. Ultra-high precision units are available on request

4 Limited for safe operation. High jog speeds available on request, requires additional safety measures

Control System Options

Control of the press is via a touch screen HMI that can be customised to the client’s application. The control is offered in 4 different types:

  1. Standard – servo motor with load sensing via servo torque monitoring accurate to ±5% of rated capacity. Position measurement via the servo encoder
  2. Precision Load – servo motor driven with load cell feedback providing precise control of the load < ±0.5% of rated capacity. Individual load cells for precise balancing of forces in multi screw presses.
  3. Precision Position – servo motor driven with glass linear encoders to provide accuracy of ±5µm. True platen position readout with dynamic position correction.
  4. Precision Load and Position – Incorporates both 2 & 3 above

All controls come standard with a recipe system allowing the operator to call up pre-defined programs from a list. This can be integrated with RFID or barcode tagging of the press tools.

Design

Press units are designed in house based on proven principles and stresses can be tailored to the client’s requirements. All press units are designed with an infinite fatigue life on all fixed components. The major components can withstand more than 1×106 cycles without failure and are provided with preventative maintenance schedules to provide years of problem free operation.

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