Used TOYO T-31N CNC Vertical Honing Machine

Loading carousel...

Product Highlight

Used TOYO T-31N is a Japanese CNC vertical honing machine built for accurate internal bore finishing. With Ø60 mm maximum bore capacity, 300 mm honing length, servo-controlled infeed and Mitsubishi drive components, it is a practical solution for automotive, hydraulic, compressor and other precision-component manufacturing applications.

Product Description

Used TOYO T-31N CNC vertical honing machine from Japan, designed for high-precision internal bore finishing. With a maximum honing diameter of Ø60 mm, 300 mm honing length, Mitsubishi control system, NC ball-screw reciprocation and servo-controlled infeed, this machine is well suited for automotive parts, hydraulic components and other precision bore applications requiring stable roundness, cylindricity and fine surface finish.

Technical Specifications

Specification	Details
Brand	TOYO
Manufacturer	Toyo Advanced Technologies Co., Ltd.
Model	T-31N
Machine Type	CNC Vertical Honing Machine
Condition	Used / Well Maintained
Country of Origin	Japan
Control System	Mitsubishi control and servo system
Operator Interface	Mitsubishi GOT1000
Number of Spindle Heads	1
Spindle Reciprocation Drive	NC + Ball Screw
Maximum Spindle Stroke	450 mm
Maximum Honing Diameter	Ø60 mm
Maximum Honing Length	300 mm
Spindle Speed	200–1,200 rpm
Spindle Rotation	Clockwise when viewed from above
Spindle Reciprocation Rate	22 cycles/min, per supplied specification
Honing Infeed	Constant-speed servo infeed
Sizing Method	Counter sizing / stroke control
Workpiece Clamping	Manual
Loading Method	Manual
Working Height from Floor	Approx. 1,100 mm
Reference Roundness	0.001 mm
Reference Cylindricity	0.003 mm
Reference Surface Finish	Ra 0.1 μm
Reciprocation Servo Motor	Mitsubishi 3.0 kW AC Servo
Servo Motor Model	HC-LFS302B with brake
Spindle Motor	Mitsubishi 2.2 kW, 4-pole inverter motor
Spindle Motor Series	SF-JRV, 200 V
Infeed Servo Motor	Mitsubishi 0.6 kW AC Servo
Infeed Servo Model	HA-FF63C-S2
Coolant Type	Water-insoluble coolant
Coolant System	Magnetic separator
Coolant Discharge	Approx. 40 L/min
Coolant Tank Capacity	Approx. 200 L
Coolant Chiller	750 W
Lubrication System	5 L / 70 W

Accuracy Note:

The roundness, cylindricity and surface finish values above should be treated as reference machining performance rather than unconditional acceptance values. Actual results depend on workpiece material, bore geometry, honing stones, tooling condition, coolant, machining parameters and machine setup.

Applications & Suitable Machining Scenarios

Used TOYO T-31N vertical honing machine is mainly suitable for small-to-medium precision internal bores where diameter consistency, roundness and surface quality are important. Typical workpieces include automotive transmission components, valve bodies and sleeves, hydraulic and pneumatic components, compressor parts, precision bushings, pump components, bearing-related parts and other cylindrical components with bores up to Ø60 mm.

For manufacturers replacing an existing honing process or adding dedicated bore-finishing capacity, the T-31N is particularly relevant where a Japanese CNC honing machine, servo honing machine or precision internal bore honing machine is required without the investment associated with purchasing current-generation equipment.

FAQ

What is the maximum bore diameter of the TOYO T-31N honing machine?

The TOYO T-31N has a specified maximum honing diameter of Ø60 mm and a maximum honing length of 300 mm, making it suitable for many small and medium precision internal-bore components.

Can this used TOYO T-31N perform both rough and finish honing?

According to the supplied configuration, the machine supports rough and finish honing through NC-controlled stone expansion, with separate roughing and finishing stones incorporated into the honing-tool setup. Buyers should confirm the tooling included with the machine before purchase.

What machining accuracy can the T-31N achieve?

Reference values provided for this machine include approximately 0.001 mm roundness, 0.003 mm cylindricity and Ra 0.1 μm surface finish. Final achievable accuracy depends on the workpiece, honing stones, tooling, coolant and process setup.