Used SHIGIYA GPL-30 CNC Cylindrical Grinder

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Product Highlight

Used SHIGIYA GPL-30 CNC cylindrical grinder is a high-precision Japanese grinding machine designed for accurate external cylindrical grinding of shafts, spindles, hydraulic components, automotive parts, and other precision workpieces. Equipped with a FANUC Series 21i-TB CNC control, this pre-owned grinder offers reliable operation, fine feed control, and excellent grinding capability, making it a cost-effective choice for manufacturers seeking Japanese precision without the cost of a new machine.

Product Description

Used SHIGIYA GPL-30 CNC cylindrical grinder, originally made in Japan and equipped with FANUC control. This low-hour pre-owned machine is in well-maintained condition and is suitable for high-precision OD cylindrical grinding applications. With grinding accuracy reportedly within 0.5 μm, it offers a cost-effective way to add Japanese grinding capability without the investment required for a new machine.

Technical Specifications

General Information

Specification	Details
Manufacturer	SHIGIYA
Model	GPL-30
Machine Type	CNC Cylindrical Grinding Machine
Condition	Used / Pre-owned
Country of Origin	Japan
CNC Control	FANUC Series 21i-TB
Grinding Application	External Cylindrical / OD Grinding
Reported Grinding Accuracy	Within 0.5 μm
Tailstock Center Travel	125 mm
Tailstock Center Taper	MT No.4

Table Feed System

Specification	Details
Grinding Feed Speed	0–10,000 mm/min
Rapid Feed Speed	0–1,260 mm/min
Rapid Feed Steps	16
Minimum Increment	0.0001 mm/pulse
Grinding Feed Override	0–150%
Feed Override Increment	10%
Servo Motor	1.0 kW AC Servo Motor

Tailstock / Infeed Related Specifications

Specification	Details
Tailstock Center Travel	125 mm
Center Taper	MT No.4
Manual Travel	270 mm, including rapid feed
Rapid Travel Distance	40 mm
Rapid Traverse Speed	0–10,000 mm/min
Rapid Traverse Steps	4
Feed Speed	0–2,520 mm/min
Feed Speed Steps	16
Minimum Increment	0.0001 mm/pulse
Grinding Feed Override	0–150%
Automatic Infeed Total Travel	99.999 mm
Rough Grinding Automatic Infeed	0.01–9.99 mm/min
Rough Grinding Air-Cut Adjustment	0–99.9 rev
Finish Grinding Automatic Infeed	0.001–0.099 mm
Finish Grinding Air-Cut Adjustment	0–99 passes
Servo Motor	0.9 kW AC Servo Motor

Headstock Specifications

GP-Type Headstock

Specification	Details
Spindle Type	Fixed spindle / faceplate type
Swivel Angle	0° fixed
Spindle Speed	15–600 min⁻¹, stepless
Center Taper	MT No.4
Motor	1.5 kW AC Servo Motor

GU-Type Headstock Configuration

Specification	Details
Spindle Type	Swiveling / fixed spindle
Swivel Angle	±15°
Center Taper	MT No.4

Note: Specifications above are compiled from the information supplied with this used machine. Actual installed configuration and performance should be confirmed during inspection.

Applications & Suitable Industries

The used SHIGIYA GPL-30 CNC cylindrical grinder is suitable for manufacturers that require accurate and repeatable external cylindrical grinding of shafts and other rotational components.

Typical applications include:

Precision shaft OD grinding
Motor shaft grinding
Hydraulic and pneumatic component grinding
Spindle and precision shaft finishing
Bearing-related component grinding
Automotive transmission shaft grinding
Tooling and machine-component production
Small-batch and medium-volume precision machining
Repair, rebuilding and precision component manufacturing

Its Japanese SHIGIYA construction combined with FANUC CNC control makes this machine particularly suitable for workshops looking for high-precision cylindrical grinding capability at a lower investment than purchasing a new Japanese grinder.

FAQ

Is this SHIGIYA GPL-30 a new or used cylindrical grinder?

This is a used SHIGIYA GPL-30 CNC cylindrical grinding machine, originally manufactured in Japan. It is being offered as pre-owned equipment, not as a new SHIGIYA machine.

What CNC control system is installed on this SHIGIYA GPL-30?

The machine is equipped with a FANUC Series 21i-TB CNC control, as shown on the actual machine control panel.

What kind of parts can the SHIGIYA GPL-30 grind?

The GPL-30 is primarily suitable for precision external cylindrical grinding of components such as shafts, motor shafts, spindle parts, hydraulic components and other rotational workpieces.

Can this used SHIGIYA grinder achieve 0.5 micron accuracy?

The supplied machine information indicates grinding accuracy within approximately 0.5 μm. Because this is a used machine, final achievable accuracy depends on machine condition, setup, tooling, grinding wheel, workpiece and operating environment. Buyers are welcome to request an inspection or test grinding before purchase.

Can I inspect the SHIGIYA GPL-30 before purchasing?

Yes. Please contact us for current machine availability, detailed photos, running videos and inspection arrangements. We can also provide additional technical information before you make a purchasing decision.