DSP3000 Servo Press

Choose based on load requirements and space constraints. The DPS ultra-thin type has a maximum rated load of 5~200kN (0.51~20.39 ton); its flat design suits multiple axes side by side for a more compact line, with strokes of 200/300/400mm. The DPM mini type has a load of 0.5~1kN (0.05~0.1 ton), a 100mm stroke and weighs only 4kg, for light loads where equipment size needs to be reduced. The DPT vertical type has a load of 1.96~196.1kN (0.2~20.0 ton), a 150 or 250mm stroke, and the widest selection of models and performance options.

A built-in load cell samples continuously during press-fitting, with a pressure sampling cycle of 1 millisecond or less and repeatability of ±0.01mm. Load, distance and press-fit waveform data can be managed and judgment conditions set, so defective press-fits are caught at the station instead of relying on downstream sampling inspection. Parameter sets are 32 for a single unit and 128 for multiple units, covering a variety of products and process conditions; with the MFC-CF-S module added, results and waveforms can be stored on a CompactFlash memory card even without a PC connected.

It depends on which condition defines a good part in your process. For press-fitting pins, bearings, bushings and connectors, use the "load method", which stops at the set load; for punching and blanking, use the "distance method", which stops at the set displacement. For film and circuit board lamination, use "specified-point load detection", which adds a load judgment at an intermediate point within a specified displacement range. For drawing can bodies and battery cases, use "load rise point detection + distance method", which first finds the inflection point where the material is actually contacted and then presses by the set amount, so workpiece height tolerance does not accumulate into the forming depth. For riveting, use "load drop point detection", which stops when material yield is detected to avoid over-pressing. For powder compaction and tablet pressing, use the "constant load distance method", which presses at the set load and limits the upper limit. All six methods are parameter settings in the controller, so changeovers only require changing parameters.

It depends on the series and load: the DPS series uses the MFC-S060S, MFC-S120S or MFC-GSC; the DPM series uses the MFC-S024S; the DPT series uses the MFC-S024S, MFC-S060S or MFC-S120S depending on the model. The three controllers differ in instantaneous maximum peak current (17.0/42.4/84.8A) and transformer capacity (0.3/0.8/4.0 KVA × number of press axes), with identical communication and I/O specifications. Each series is also available in a standard type (F-Type) and a high-output type (P-Type); on the high-output type the maximum continuous load equals the maximum rated load, making it suitable for processes with sustained pressing over long periods.

Yes. The controller itself has an Ethernet PC communication port compliant with IEEE802.3 (100BASE-T), 1 RS232C port (38400bps default, with 19200/9600bps also available), and standard I/O with 12 inputs and 12 outputs, supporting both NPN and PNP. For more interfaces, add expansion units: expansion unit 1 options are MFC-DT-S (32 expansion inputs and 32 outputs), MFC-CC-S (CC-Link V2), MFC-DN-S (DeviceNet), MFC-PB-S (PROFIBUS DP-V1), MFC-EN-S (EtherNet/IP), MFC-PN-S (PROFINET IO), MFC-EC-S (EtherCAT) or MFC-CI-S (CC-Link IE Field); expansion unit 2 options are MFC-CF-S (CompactFlash memory card and expansion RS232C) or MFC-CFEN-S. In multi-axis systems, controllers are daisy-chained via the axis link port, up to 32 axes.

Standard models cover a force range of 0.1t~20t, with maximum speed ranging from 16mm/s to 416mm/s depending on the model, and shaft diameters of 30~130mm. Strokes other than the standard specifications are available on request, and some models are made to order. For selection, we recommend providing press-fit force, stroke, cycle time and installation space so we can help match a model.

Hydraulic and pneumatic presses usually only control "press to the end" or "press to a set pressure", and the force profile during pressing is not recorded, so bad press-fits are often found only at final inspection or after a customer complaint. The DSP3000 servo press is driven by a servo motor with a built-in load cell, sampling force within 1 ms at ±0.01mm repeatability, so every press-fit is judged OK/NG by load and displacement and its waveform is stored; changeovers only require switching parameter sets. A servo press is worth it when you need quality traceability, change over between many product types, or want to eliminate hydraulic leaks and maintenance.

Any process that presses one part into another and needs to confirm it was done correctly: press-fitting bearings, pins, bushings and gears; press-fit connector terminals; riveting and rivet forming; drawing of cans and battery cases; laminating films and circuit boards; and powder compaction and tablet pressing. The DSP3000 offers six control methods for these processes — load method, distance method, specified point load detection, load rise detection plus distance method, load drop detection, and constant load distance method — selected in the controller without changing the mechanism.

Beyond OK/NG judgment after pressing, the DSP3000 controller has several checks that stop before damage occurs: interference check stops immediately if the set load is detected in a zone where no load should occur; starting load detection can ignore or flag a friction spike at the start of pressing; offset load check detects eccentric load on the press shaft. There is also a press-tool/controller match check, servo motor protection against overcurrent, overload, overvoltage and abnormal temperature, and controller self-diagnosis, with errors reported to the line via panel LEDs and judgment signals.

A general servo electric cylinder mainly "pushes to a set position", with force usually estimated from motor current. The DSP3000 is also driven by a servo motor in an electric cylinder structure, but it is a servo press system designed for press-fitting: the press shaft has a built-in load cell that measures force directly, and the controller provides six press-fit control methods, 128 parameter sets and OK/NG judgment, stores load–displacement waveforms, and can be chained into systems of up to 32 axes. For low-force precision positioning or pushing, see the RM-NPLA miniature slide-table electric cylinder in the same category; for ton-class loads with press-fit quality control, choose the DSP3000.

Utrun-Tech Co.,Ltd. is a distributor of DAI-ICHI DENTSU (DDK) products in Taiwan, providing DSP3000 servo press selection, advice on press-fit control methods and parameter settings, and technical support after installation. When requesting a quote, please provide the workpiece and press-fit method, required force, stroke, cycle time and installation space, and whether a PLC or fieldbus connection is needed, so we can confirm the right press tool and controller models.