Used OKAMOTO PSG-64EX Surface Grinder for Sale

Loading carousel...

Product Highlight

Used OKAMOTO PSG-64EX is a Japanese NC/CNC precision surface grinding machine featuring a 650 × 400 mm worktable, automatic grinding feed control, and a 3.7 kW spindle motor. Designed for flat surface grinding of compatible metal components, it is a practical choice for mold making, precision tooling, and general machining workshops seeking an economical alternative to new grinding equipment.

Product Description

Used OKAMOTO PSG-64EX CNC surface grinder features a 650 × 400 mm worktable, a 600 × 400 mm magnetic chuck, and automatic grinding feed functions. A practical solution for mold making, precision tooling, and metalworking workshops seeking cost-effective grinding capacity.

Technical Specifications

General Information

Parameter	Specification
Brand	OKAMOTO
Model	PSG-64EX
Machine Type	NC/CNC Precision Surface Grinder
Condition	Used / Pre-owned
Country of Origin	Japan
Grinding Method	Surface Grinding
Control System	NC/CNC Grinding Control (version to be confirmed)

Worktable & Travel

Parameter	Specification
Working Table Size	650 × 400 mm
Standard Magnetic Chuck Size	600 × 400 × 85 mm
Maximum Table Load (Including Chuck)	420 kg
T-Slots	3 slots, 17 mm wide
Maximum Longitudinal Travel	750 mm
Maximum Cross Travel	440 mm
Longitudinal Table Speed	0.3–25 m/min
Longitudinal Manual Feed per Handwheel Revolution	47 mm
Maximum Cross Travel	440 mm
Cross Manual Feed per Handwheel Revolution	5.0 mm
Cross Handwheel Graduation	0.02 mm

Automatic Feed & Grinding Control

Parameter	Specification
Automatic Intermittent Cross Feed	0.5–20 mm
Continuous Cross Feed Speed	0.1–1.0 m/min
Automatic Downfeed Increment	0.0001–0.03 mm (15 steps)
Manual Downfeed Increment Settings	0.0001 / 0.001 / 0.01 mm
Vertical Handwheel Feed per Revolution	0.01 / 0.1 / 1.0 mm
Spark-Out Passes	0–5
Rapid Vertical Feed Rate	600 mm/min

Grinding Wheel & Motors

Parameter	Specification
Grinding Wheel Size (50 Hz)	Ø355 × 38 × Ø127 mm
Grinding Wheel Size (60 Hz)	Ø305 × 38 × Ø127 mm
Grinding Spindle Speed (50 Hz)	1500 rpm
Grinding Spindle Speed (60 Hz)	1800 rpm
Grinding Spindle Motor	3.7 kW, 4-pole
Hydraulic Pump Motor	1.5 kW, 4-pole
Vertical / Cross Feed Servo Motor	0.4 kW AC Servo
Vertical Rapid Feed / Cross Feed Drive	0.4 kW AC Servo
Total Electrical Capacity	11.0 kVA

Dimensions & Weight

Parameter	Specification
Machine Dimensions	2737 × 2203 × 1808 mm
Machine Weight	Approx. 3000 kg

Technical Note: Specifications are based on the available equipment data. Actual configuration, control functions, and grinding performance should be verified before purchase. Downfeed increments refer to nominal feed settings, not guaranteed machining accuracy.

Applications & Industries

Used OKAMOTO PSG-64EX CNC precision surface grinder is designed for flat surface grinding applications requiring controlled material removal and consistent finishing operations. Its automatic feed functions and 600 × 400 mm magnetic chuck make it suitable for a range of precision engineering and metalworking tasks.

Mold & Die Manufacturing

Suitable for grinding mold plates, die blocks, and flat reference surfaces used in mold and tooling production.

Precision Tool & Fixture Manufacturing

Ideal for surface finishing of tool plates, machine fixtures, and compatible precision components that require flat and parallel surfaces.

General Precision Metalworking

Supports surface grinding of steel and other suitable metal workpieces, helping manufacturers achieve specified surface finishes and dimensional requirements when the machine is properly maintained and set up.

Machinery Maintenance & Repair

Can be used for resurfacing suitable machine components, tooling surfaces, and replacement parts during maintenance and refurbishment work.

Small-Batch & Repetitive Grinding

Automatic cross-feed and vertical downfeed functions help reduce repetitive manual adjustments during grinding operations, making the machine a practical option for job shops and precision machining workshops.

FAQ

What is the grinding capacity of this used OKAMOTO PSG-64EX?

The machine features a 650 × 400 mm worktable, a 600 × 400 mm magnetic chuck, 750 mm longitudinal travel, and 440 mm cross travel. Actual workpiece capacity also depends on the workpiece height, shape, mounting method, and available grinding wheel clearance.

Can this surface grinder be used for precision mold and die components?

Yes. The PSG-64EX is suitable for surface grinding applications involving mold plates, die blocks, tooling components, and flat precision parts. Achievable accuracy and surface finish depend on the machine's condition, grinding wheel selection, operating parameters, and workpiece material.