Jainnher JHT-4010

Specs verified 2026-10-05 · jainnher.com Updated 2026-10-05

Image: jainnher.com, Jainnher

Key Specifications

Spindle Power

30 kW (40.2 hp)

grinding capacity

OD 400 x L 1,000 mm (15.7 x 39.4 in)

wheel size

510 x 50-100 x 203.2 mm (20.1 x 2.0-3.9 x 8.0 in) (OD x W x ID)

wheel speed

3,500 rpm

work spindle speed

10 to 300 rpm

center taper

MT4

How much does the Jainnher JHT-4010 cost?

Price estimate

Uncertain

We do not have a price for the Jainnher JHT-4010 that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.

Overview

The Jainnher JHT-4010 is a CNC thread grinding machine with a stated capacity of OD 400 x L 1,000 mm (15.7 x 39.4 in), run by a FANUC 0i-TF control. It is the only thread grinder in Jainnher's range, and it is a large one: the wheel is 510 mm in outside diameter and the wheel motor is rated 30 kW (40.2 hp).

Thread grinding needs the wheel tilted to the helix angle of the thread. On this machine the wheel spindle inclines from CCW 30° to CW 30°, and Jainnher says the rotation is automatic under CNC control. The spindle itself is a built-in unit made in Italy with water cooling, running at 3,500 rpm. The work table swivels separately, CCW 7° to CW 4°, which is the usual way to take out taper along a long screw.

Lead accuracy over a long thread depends on the table's motion and on heat. The slides run on hydrostatic guideways, which the maker prefers to box and linear ways for their low noise and vibration. The ball screw is hollow and cooled by a hydraulic circuit to limit thermal growth. The work spindle turns at 10 to 300 rpm on a 2.7 kW (3.6 hp) motor, with MT4 centers, and both the wheel feed and the table have 3 kW (4.0 hp) motors.

Jainnher also offers its own 'Smart Machine Function', which it says detects the right moment to grind for each workpiece. The wording is that the machine can be equipped with it, so confirm whether it is part of the machine as ordered. The machine measures 4,000 x 2,500 x 2,330 mm (157.5 x 98.4 x 91.7 in) and weighs 10,000 kg (22,046 lb).

Full Specifications

Parameter	Value
Grinding Capacity	OD 400 x L 1,000 mm (15.7 x 39.4 in)
Wheel Size	510 x 50-100 x 203.2 mm (20.1 x 2.0-3.9 x 8.0 in) (OD x W x ID)
Wheel Speed	3,500 rpm
Work Spindle Speed	10 to 300 rpm
Center Taper	MT4
Wheel Spindle Inclination	CCW 30° ~ CW 30°
Table Swivel Angle	CCW 7° ~ CW 4°
Spindle Motor Power	30 kW (40.2 hp)
Work Head Motor	2.7 kW (3.6 hp)
Wheel Feed Motor	3 kW (4.0 hp)
Table Motor	3 kW (4.0 hp)
CNC Control	FANUC 0i-TF
Machine Dimensions	4,000 x 2,500 x 2,330 mm (157.5 x 98.4 x 91.7 in) (L x W x H)
Machine Weight	10,000 kg (22,046 lb)

Specifications sourced from jainnher.com — verified 2026-10-05

Strengths & Limitations

Strengths

Wheel spindle inclines from CCW 30° to CW 30° under CNC control for the thread helix angle
Hydrostatic guideways, which Jainnher says give fast movement with low noise and vibration
Italian-made built-in wheel spindle with water cooling, rated 30 kW (40.2 hp) at 3,500 rpm
Hollow ball screw with hydraulic cooling to limit thermal deformation
FANUC 0i-TF control is named in the specification table

Limitations

Capacity ends at OD 400 x L 1,000 mm (15.7 x 39.4 in); longer screws need another machine
Jainnher publishes no pitch, lead or accuracy figures for the machine
The table gives one wheel speed, 3,500 rpm, with no range stated
At 10,000 kg (22,046 lb) it needs a proper foundation

Best For

Ball screws and lead screws up to 1,000 mm (39.4 in) long Threaded shafts and worms held between MT4 centers Thread work where helix angles stay within 30° either side

Frequently Asked Questions

01 What is the capacity of the JHT-4010?

Jainnher states it as OD 400 x L 1,000 mm (15.7 x 39.4 in). Work is held between MT4 centers and driven at 10 to 300 rpm. The grinding wheel is 510 x 50-100 x 203.2 mm (20.1 x 2.0-3.9 x 8.0 in), given as OD x W x ID.

02 How far can the wheel be inclined for the helix angle?

The wheel spindle's axial inclination is CCW 30° to CW 30°. Jainnher describes this as automatic rotation under CNC control, so the helix angle is set from the program. Separately, the work table swivels from CCW 7° to CW 4°.

03 What control does the JHT-4010 use?

The specification table names the FANUC 0i-TF. Jainnher says the machine can also be equipped with its own Smart Machine Function, which it describes as detecting the proper grinding timing for each workpiece. Ask whether that function is included or an extra.

04 What makes the slideways of the JHT-4010 different from a conventional grinder's?

It uses a hydrostatic guideway system. Jainnher says this gives fast movement with low noise and low vibration and rates it above box and linear guideways. The ball screw has a hollow, hydraulically cooled design to keep thermal deformation down and hold positioning accuracy.