Jainnher JHU-3520CNC

Q: How much does the Jainnher JHU-3520CNC cost?

The price estimate for the Jainnher JHU-3520CNC is uncertain: we have no price for it that we can cite and no estimate we can stand behind, so we give no figure. Configuration, tooling, automation and installation move the final price substantially. A specific price can be requested at https://machinetoolindex.com/machines/jainnher-jhu-3520cnc#price; the request is passed to Jainnher or an authorised dealer.

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

Key Specifications

Spindle Power

3.75 kW, 5 HP, 4P; 7.5 HP (5.6 kW) (opt.)

max work swing

350 mm (13.8 in)

max grinding length

2,000 mm (78.7 in)

max grinding diameter

330 mm (13.0 in)

max workpiece weight

130 kg (287 lb)

work spindle speed 60hz

11 to 500 rpm at 60 Hz (variable speed)

How much does the Jainnher JHU-3520CNC cost?

Price estimate

Uncertain

We do not have a price for the Jainnher JHU-3520CNC 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 JHU-3520CNC is the largest CNC universal cylindrical grinder in Jainnher's JHU line. It has the 350 mm (13.8 in) swing and the 2,000 mm (78.7 in) bed together, with a 330 mm (13.0 in) grinding diameter.

Buying it is as much a facilities decision as a machining one. The approximate footprint is 6,800 x 2,160 x 2,310 mm (267.7 x 85.0 x 90.9 in) and the approximate gross weight 8,500 kg (18,739 lb), the heaviest in the range. Three reservoirs come with the machine: 60 L of hydraulic oil, 30 L for the compulsory lubrication of the wheel spindle and 100 L of coolant. On the CNC models the splash guard is a full enclosure with an oil mist collector.

Electrical supply frequency changes one figure a user will notice. The work head runs at 11 to 500 rpm on 60 Hz and 9 to 420 rpm on 50 Hz, so check which applies before working out surface speeds for small diameters.

The capacity that does not scale with the bed is weight. Between centers the limit is 130 kg (287 lb), the same as on the one-metre machine, and the wheel motor is 3.75 kW, 5 HP, with 7.5 HP (5.6 kW) optional. Long, slim and precise is the brief: guide columns, long spindles, printing and laminating rolls with light bodies. The table swivels 5° counter-clockwise and 3° clockwise to take out taper, and a 2-point center rest is part of the standard equipment.

Full Specifications

Parameter	Value
Max Work Swing	350 mm (13.8 in)
Max Grinding Length	2,000 mm (78.7 in)
Max Grinding Diameter	330 mm (13.0 in)
Max Workpiece Weight	130 kg (287 lb)
Work Spindle Speed 60hz	11 to 500 rpm at 60 Hz (variable speed)
Work Spindle Speed 50hz	9 to 420 rpm at 50 Hz (variable speed)
Work Head Swivel Angle	120° (CCW: 90°; CW: 30°)
Center Taper	MT.4
Work Spindle Rotation	Setting, Normal and reverse rotation
Table Swivel Angle Ccw Cw	5° / 3°
Table Min Setting Unit	0.001 mm
Wheel Size	405 x (25 ~ 50) x 152.4; 455 x 50 x 152.4 (opt.) (D x W x B)
Max Peripheral Speed	2,000 m/min
Wheel Head Max Feed Rate	6 m/min (236 ipm)
Wheel Head Travel	175 mm (6.9 in)
Wheel Head Min Setting Unit	0.001 mm
Tailstock Center Travel	30 mm (1.2 in)
Tailstock Center	MT4
Spindle Motor Power	3.75 kW, 5 HP, 4P; 7.5 HP (5.6 kW) (opt.)
Worktable Motor	1.8 kW (2.4 hp)
Hydraulic Motor	0.75 kW (1 HP), 4P
Servo Motor X	1.2 kW (1.6 hp)
Servo Motor Y	2.5 kW (3.4 hp)
Hydraulic Tank	60 L
Lubrication Tank	30 L
Coolant Tank	100 L
Gross Weight	8,500 kg (18,739 lb) (approx.)
Machine Dimensions	6,800 x 2,160 x 2,310 mm (267.7 x 85.0 x 90.9 in) (L x W x H) (approx.)

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

Strengths & Limitations

Strengths

Largest JHU-CNC envelope: 350 mm (13.8 in) swing with 2,000 mm (78.7 in) grinding length
Full enclosure with oil mist collector standard on the CNC models
2-point center rest included
Wheel motor can be raised from 3.75 kW, 5 HP to 7.5 HP (5.6 kW)

Limitations

Still limited to 130 kg (287 lb) between centers
Needs about 6,800 mm (267.7 in) of length and carries a gross weight of about 8,500 kg (18,739 lb)
Work head top speed drops to 420 rpm on a 50 Hz supply
Table swivel is only 5° counter-clockwise and 3° clockwise

Best For

Long, light rolls and guide columns up to 2,000 mm (78.7 in) Long spindles up to 330 mm (13.0 in) in grinding diameter Plants with the floor length and services for a 6,800 mm (267.7 in) machine

Frequently Asked Questions

01 How large is the JHU-3520CNC?

Jainnher's approximate size is 6,800 x 2,160 x 2,310 mm (267.7 x 85.0 x 90.9 in), length by width by height, and the approximate gross weight is 8,500 kg (18,739 lb). The table also has to travel, so the working length is greater than the machine length.

02 Does supply frequency affect the machine?

It affects work head speed. Jainnher gives a variable range of 11 to 500 rpm at 60 Hz and 9 to 420 rpm at 50 Hz. The table's wheel speed row also distinguishes the two frequencies, but it is not printed clearly enough to quote.

03 What is the heaviest shaft it can grind?

130 kg (287 lb) between centers. That limit is the same for every JHU-CNC model from 1,000 mm (39.4 in) upward in Jainnher's table, so the 2,000 mm (78.7 in) bed is for long light parts, not long heavy ones.

04 How does it compare with the JHU-2720CNC?

The JHU-2720CNC has the same 2,000 mm (78.7 in) grinding length with a 270 mm (10.6 in) swing and a 250 mm (9.8 in) grinding diameter, and an approximate gross weight of 8,400 kg (18,519 lb). The JHU-3520CNC adds swing for larger journals and flanges.