Jainnher JHD-1503IO
Image: jainnher.com, Jainnher
Key Specifications
grinding type
id grinding capacity
max grinding diameter
max id depth od length
max swing
max workpiece weight
How much does the Jainnher JHD-1503IO cost?
Price estimate
We do not have a price for the Jainnher JHD-1503IO 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 JHD-1503IO is a CNC double spindle grinding machine: one chucking, two wheels, with the outside diameter ground by a wheel on the Y axis and the bore by a wheel on the Z axis. It is the small model of the JHD line, for parts up to 150 mm (5.9 in) in grinding diameter within a 300 mm (11.8 in) swing.
The layout is unusual and worth picturing. The work head sits on the X axis and carries a 6 in chuck. The external and internal grinding heads each have their own slide. All three axes have 350 mm (13.7 in) of stroke, a 10 m/min (32.8 ft/min) rapid and a 0.001 mm (0.00004 in) setting unit, and each is driven by a FANUC β8, 1.2 kW servo motor on roller linear guideways. Because O.D. and I.D. are ground without re-chucking, concentricity between them depends on the machine and not on the operator.
The O.D. wheel is 150 x 25 mm (5.9 x 1.0 in) and runs at 4,200 rpm. Bores from Ø 6 to Ø 120 are covered, 80 mm deep, and Ø 2 to Ø 6 is an option. Jainnher leaves the I.D. wheel size and speed open, since they follow the bore. Each wheel spindle has a 2.2 kW (3 HP) motor, and a build-in type spindle is offered as an option for high speed.
Standard job weight is 70 kg (154 lb), or 100 kg (220 lb) as an option. A C axis for angle positioning, used for cams and eccentric holes, is also optional. The machine weighs 3,800 kg (8,377 lb).
Full Specifications
| Parameter | Value |
|---|---|
| Grinding Type | External & Internal |
| ID Grinding Capacity | Ø 6 ~ Ø 120 x 80 mm; Ø 2 ~ Ø 6 (opt) |
| Max Grinding Diameter | 150 mm (5.9 in) |
| Max ID Depth OD Length | ID: 100 / OD: 120 mm |
| Max Swing | 300 mm (11.8 in) |
| Max Workpiece Weight | 70 kg (154 lb); 100 kg (220 lb) optional |
| Wheel Head Type | OD, ID |
| Chuck Size | 6 in |
| Work Spindle Speed | 20-1000 rpm/min (variable speed) |
| X Axis Travel | 350 mm (13.7 in) |
| X Axis Rapid Traverse | 10 m/min (32.8 ft/min) |
| X Axis Min Setting Unit | 0.001 mm (0.00004 in) |
| OD Wheel Size | 150 x 25 mm (5.9 x 1.0 in) |
| OD Wheel Speed | 4,200 rpm |
| Y Axis Travel | 350 mm (13.7 in) |
| Y Axis Rapid Traverse | 10 m/min (32.8 ft/min) |
| Y Axis Min Setting Unit | 0.001 mm (0.00004 in) |
| Z Axis Travel | 350 mm (13.7 in) |
| Z Axis Rapid Traverse | 10 m/min (32.8 ft/min) |
| Z Axis Min Setting Unit | 0.001 mm (0.00004 in) |
| X Axis Motor | FANUC β8, 1.2 kW |
| Work Head Motor | FANUC β12, 1.4 kW |
| Y Axis Motor | FANUC β8, 1.2 kW |
| OD Wheel Spindle Motor | 2.2 kW (3 HP), 2P |
| Z Axis Motor | FANUC β8, 1.2 kW |
| ID Wheel Spindle Motor | 2.2 kW (3 HP), 2P |
| Machine Weight | 3,800 kg (8,377 lb) |
| Gross Weight | 4,200 kg (9,259 lb) |
| Machine Dimensions | 2,800 x 1,950 x 2,100 mm (110.2 x 76.8 x 82.7 in) (L x W x H) |
Specifications sourced from jainnher.com — verified 2026-10-05
Strengths & Limitations
Strengths
- Grinds O.D. and I.D. in one chucking with separate external and internal wheel heads
- Three servo axes, each with 350 mm (13.7 in) of stroke and a 10 m/min (32.8 ft/min) rapid
- 0.001 mm (0.00004 in) setting unit on X, Y and Z
- FANUC β8 and β12 servo motors on the axes and the work head
- Compact at 2,800 x 1,950 x 2,100 mm (110.2 x 76.8 x 82.7 in)
Limitations
- Grinding diameter is limited to 150 mm (5.9 in); the JHD-3205IO reaches 320 mm (12.5 in)
- Bores below Ø 6 need the optional small-bore range
- Wheel spindle motors are 2.2 kW (3 HP) each
- Jainnher lists a 100 mm I.D. depth in one row and 80 mm in another, so confirm the bore depth for your part
Best For
Frequently Asked Questions
01
The machine has two grinding wheel heads, one for outside diameters on the Y axis and one for bores on the Z axis, facing a work head on the X axis. Jainnher's table gives the wheel head type as OD, ID. A part is chucked once and both surfaces are ground in the same cycle.
02
Maximum grinding diameter is 150 mm (5.9 in) and maximum swing is 300 mm (11.8 in). Bores run from Ø 6 to Ø 120, with Ø 2 to Ø 6 optional. Jainnher prints the bore depth as 80 mm in the capacity row and the maximum I.D. depth and O.D. length as ID: 100 / OD: 120 mm in another row.
03
The maximum job weight is 70 kg (154 lb) as standard and 100 kg (220 lb) as an option. The work head has a 6 in chuck and a variable spindle speed of 20 to 1,000 rpm, driven by a FANUC β12, 1.4 kW motor.
04
Jainnher describes X, Y and Z as servo axes of which two, X with Y or X with Z, move simultaneously. An angle positioning C axis is optional, giving X, Y, C or X, Z, C for grinding cams or eccentric holes.
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