Used NAGASE RG500 Rotary Surface Grinder

Product Highlight
This pre-owned NAGASE RG500 rotary table surface grinder from Japan is designed for ultra-precision mirror finish grinding.

Product Description

This pre-owned NAGASE RG500 rotary table surface grinder from Japan is designed for ultra-precision mirror finish grinding. Equipped with FANUC CNC control, hydrostatic bearing structure, a Ø500 mm permanent magnetic chuck, and 0.1 μm minimum setting unit, it is suitable for high-accuracy flat grinding, step grinding, and mirror surface machining. Inspection photos show a clean mirror finish and flatness checking around 0.5 μm, making it a strong choice for precision mold, die, semiconductor tooling, and high-end component machining.

Technical Specifications

ItemSpecification
Machine ConditionUsed / Pre-owned
BrandNAGASE
ModelRG500
Machine TypeCNC Rotary Table Surface Grinder / Mirror Surface Grinder
Country of OriginJapan
CNC SystemFANUC / FANUC Oi-D listed
Chuck SizeØ500 mm permanent magnetic chuck
Y-Axis Travel250 mm
Z-Axis Travel380 mm
Left-Right Travel400 mm
Vertical Up-Down Travel350 mm
Table / Guideway StructureHydrostatic bearing guide surface
Left-Right AxisHydrostatic bearing
Rotary Table AxisHydrostatic bearing
Drive MethodAC servo motor + hydrostatic bearing
Table Speed2–200 rpm
Rapid Feed Speed1000 mm/min
Minimum Setting Unit0.1 μm
Control MethodClosed-loop control
Control Resolution0.0001 / 0.001 / 0.01
Grinding Wheel SizeØ355 / Ø305 × T38 × Ø127 mm, as listed
Max Spindle Speed1800 rpm
Main Spindle Motor11 kW, 4-pole
Worktable Drive Motor5.5 kW
Vertical Feed Motor1.4 kW, FANUC α4/4000
Servo Motor0.75 kW, FANUC α2/5000
Pump Motors1.2–2.2 kW
Coolant Filter Motor1.2–2.2 kW
Coolant Pump1.875 kW
Magnetic Separator25 kg
CNC ControlSimultaneous 2-axis CNC control
Operation PanelLCD & MDI panel
PMCBuilt-in PMC
Tool Compensation32 groups
Program Storage125 programs
Macro FunctionCustom Macro B supported
Program Memory320 m, paper tape length conversion
InterfaceRS-232C
Special Control FunctionTable rotary axis synchronous control by left-right movement
Special Feed FunctionLeft-right axis feed control by table rotation
Included Auxiliary UnitsBag filter pump, circulation pump, liquid filter pump, suction unit, dressing motor


Applications & Suitable Machining Scenarios

The used NAGASE RG500 CNC rotary surface grinder is suitable for factories that need micron-level surface accuracy and mirror finish results without investing in a new Japanese precision grinder.

It can be used for:

  • Precision mold plates and die components
  • Mirror surface grinding of circular or flat workpieces
  • Step grinding and staged surface grinding
  • Semiconductor tooling and precision fixtures
  • Bearing parts, sealing rings, gauge parts, and high-accuracy mechanical components
  • Hardened steel, carbide, and other precision materials depending on wheel and process setup

This machine is especially useful for manufacturers looking for a Japanese used precision surface grinder with hydrostatic stability, FANUC control, and proven mirror grinding performance.

FAQ

Is this NAGASE RG500 a new machine or a used machine?

This is a used NAGASE RG500 CNC rotary surface grinder from Japan. The NAGASE brand name is used only to identify the original machine manufacturer.

Can this used NAGASE RG500 make a mirror finish surface?

Yes, this machine is designed for mirror finish grinding. The inspection photos show a clear reflective surface, and flatness checking is shown around 0.5 μm. Final results depend on wheel selection, material, dressing, and operator setup.

What control system does this RG500 grinder use?

The machine is equipped with a FANUC CNC control system, with FANUC Oi-D listed in the specification and a FANUC operation panel shown in the machine photos.

Why is this machine suitable for high-precision grinding?

The RG500 uses hydrostatic bearing construction, closed-loop control, 0.1 μm minimum setting unit, and a Ø500 mm magnetic chuck. These features help support stable micron-level grinding.

Can we inspect or test this machine before buying?

Yes. The machine is available for inspection, and buyers can request machine photos, working videos, accuracy checking details, and test grinding information before purchase.

$976471.00

Stock:2

Brand

Nagase

Model

RG500

Origin

JP

Processing Time

5412h

Machine Status

  • In stock
  • Company-owned inventory
  • Delivery time: 7 days

Available inspection support

  • Machine appearance check
  • Control system power-on check
  • Spindle and axis movement check
  • Grinding area photo check
  • Electrical cabinet photo check
  • Machine nameplate verification
  • Remote video inspection
  • Optional third-party inspection

Supplier's customization ability

  • Minor customization
  • Drawing-based customization
  • Sample-based customization
  • Full customization
Version: 8363a09