Used TAIYO KOKI IGV-3N CNC Vertical Internal Grinding Machine

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Product Highlight

Used TAIYO KOKI IGV-3N CNC vertical internal grinding machine from Japan, equipped with FANUC 21i-TB control. Featuring an Ø25–250 mm internal grinding capacity, 18,000 rpm grinding spindle and precision vertical design, this machine is well suited for automotive, bearing, gear and other high-accuracy components. A cost-effective Japanese grinding solution for manufacturers seeking reliable production capacity without investing in a new machine.

Product Description

Used TAIYO KOKI IGV-3N CNC vertical internal grinding machine, made in Japan and equipped with a FANUC Series 21i-TB control. Designed for high-precision ID and face grinding, this compact vertical grinder offers a Ø25–250 mm internal grinding range, up to 150 mm grinding length and an 18,000 rpm grinding spindle. The photographed control screen records 16,652 power-on hours, 7,502 operating hours and 4,003 cutting hours, providing buyers with useful operating-history reference.

Technical Specifications

Specification	Details
Condition	Used / Pre-owned
Brand	TAIYO KOKI
Model	IGV-3N
Machine Type	CNC Vertical Internal Grinding Machine
Country of Origin	Japan
CNC Control	FANUC Series 21i-TB
Grinding Process	Internal Diameter Grinding / Face Grinding*
X/Z Axis Travel	1000 × 325 mm
C Axis	Servo controlled
Work Spindle Speed	325 rpm
Work Spindle Drive	Built-in motor spindle
Grinding Wheel Size	Ø80 × 25 × Ø31.75 mm
Grinding Spindle Speed	18,000 rpm
Grinding Stroke	350 × 300 mm
Work Spindle Swing	Ø380 mm / 14.9 in
Internal Grinding Diameter	Ø25–250 mm / 1.0–9.8 in
Maximum Grinding Length	150 mm / 5.9 in
Workpiece Height	Up to 300 mm / 11.8 in
Worktable Diameter	Ø350 mm
Minimum Feed Increment	0.0001 mm
Guideway Type	Linear guideways
Axis Drive	Ball screw + synchronous belt drive
Chip / Coolant Handling	Flush coolant system with magnetic separator
Machine Structure	Vertical grinding machine
Approx. Machine Dimensions	1400 × 2800 × 2600 mm
Power-On Time	16,652 h 36 min
Operating Time	7,502 h 36 min
Cutting Time	4,003 h 42 min
Electrical Capacity	28 kVA, visible on machine marking
Accuracy Information Provided	Internal grinding accuracy within 1 μm; tolerance reported stable within 2 μm

Applications & Suitable Industries

The used TAIYO KOKI IGV-3N vertical internal grinder is particularly suitable for precision components requiring accurate bore geometry, consistent dimensional control and efficient production.

Typical applications include:

Automotive components – pulleys, hubs, gears, transmission parts, bearing-related components and precision bores.
Bearing manufacturing – internal raceways, bearing seats and precision cylindrical bores.
Gear and transmission components – accurately ground internal diameters and locating surfaces.
Hydraulic components – sleeves, valve bodies, bushings and precision internal bores.
Industrial machinery parts – flanges, rings, housings and rotational components.
Precision mass production – suitable for manufacturers that require repeatable CNC internal grinding of medium-size components.
Contract machining and grinding shops – useful for expanding ID grinding capacity without purchasing a new Japanese CNC grinder.

FAQ

Is this TAIYO KOKI IGV-3N a new or used grinding machine?

No. This is a used TAIYO KOKI IGV-3N CNC vertical internal grinding machine made in Japan. Actual machine photos and controller operating-hour information are provided so buyers can evaluate the equipment before purchase.

What size internal diameter can the IGV-3N grind?

The IGV-3N is designed for internal grinding from approximately Ø25 mm to Ø250 mm (1.0–9.8 in), with a maximum grinding length of 150 mm (5.9 in). These figures are consistent with the manufacturer's standard IGV-3N specifications.

What CNC controller is installed on this used IGV-3N?

This machine is equipped with a FANUC Series 21i-TB CNC control, as shown in the actual machine photos. FANUC controls are widely used on Japanese CNC machine tools and will be familiar to many experienced grinding-machine operators.

How many operating hours does this machine have?

The photographed controller screen shows approximately 16,652 power-on hours, 7,502 operating hours and 4,003 cutting hours. Buyers may request additional machine-condition information, inspection details or operating videos before confirming an order.

What kind of parts is this used vertical internal grinder suitable for?

It is suitable for precision bore grinding on components such as automotive pulleys, gears, hubs, bearing parts, sleeves, hydraulic components, rings and other rotational precision parts. Its vertical structure is especially attractive where stable workpiece support and efficient production of precision components are required.