Jainnher JHU-3506CNC
Key Specifications
Spindle Power
max work swing
max grinding length
max grinding diameter
max workpiece weight
work spindle speed 60hz
How much does the Jainnher JHU-3506CNC cost?
Price estimate
We do not have a price for the Jainnher JHU-3506CNC 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-3506CNC pairs the larger swing of Jainnher's CNC universal grinders, 350 mm (13.8 in), with the shortest bed, 600 mm (23.6 in). Grinding diameter is 330 mm (13.0 in).
Short and wide is the shape of chuck work: discs, flanges, bushings, gear blanks and tool bodies. For those parts the between-centers weight limit of 70 kg (154 lb) matters less than how the part is held, and Jainnher lists a 3-jaw chuck, a center ring with jaw plate and an internal attachment as options. With the work head swung round, up to 90° counter-clockwise, a face can be ground with the periphery of the wheel in the same setup as the diameter.
The larger swing does not bring a larger wheel head. Maximum wheel head stroke is 175 mm (6.9 in), the wheel is the same 405 size with 455 optional, and the motor is 3.75 kW, 5 HP, with 7.5 HP (5.6 kW) as the option. Peripheral speed is given as 2,000 m/min. So this is a machine for reach around big parts, not for heavier stock removal than the smaller-swing models.
It keeps the short bed's generous table swivel, 11° counter-clockwise and 6° clockwise. The JHU-2706CNC is the same machine with less swing. Gross weight is about 4,950 kg (10,913 lb), and the footprint is about 3,740 x 2,160 x 2,310 mm (147.2 x 85.0 x 90.9 in).
Full Specifications
| Parameter | Value |
|---|---|
| Max Work Swing | 350 mm (13.8 in) |
| Max Grinding Length | 600 mm (23.6 in) |
| Max Grinding Diameter | 330 mm (13.0 in) |
| Max Workpiece Weight | 70 kg (154 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 | 11° / 6° |
| 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 | 1.8 kW (2.4 hp) |
| Hydraulic Tank | 60 L |
| Lubrication Tank | 30 L |
| Coolant Tank | 100 L |
| Gross Weight | 4,950 kg (10,913 lb) (approx.) |
| Machine Dimensions | 3,740 x 2,160 x 2,310 mm (147.2 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
- 350 mm (13.8 in) swing and 330 mm (13.0 in) grinding diameter on a compact 600 mm (23.6 in) bed
- Work head swings up to 90° counter-clockwise for face grinding
- Table swivel of 11° counter-clockwise and 6° clockwise
- Footprint of about 3,740 x 2,160 x 2,310 mm (147.2 x 85.0 x 90.9 in)
Limitations
- Only 70 kg (154 lb) between centers despite the larger swing
- Wheel head stroke stays at 175 mm (6.9 in)
- Chuck, center ring with jaw plate and internal attachment are all optional
- Standard wheel motor is 3.75 kW, 5 HP
Best For
Frequently Asked Questions
01
For diameter. The JHU-2706CNC swings 270 mm (10.6 in) and grinds 250 mm (9.8 in). The JHU-3506CNC swings 350 mm (13.8 in) and grinds 330 mm (13.0 in). Grinding length, job weight and table swivel are the same on both.
02
With options. Jainnher lists an internal attachment and a high speed spindle among the optional accessories, and shows internal grinding and internal taper grinding among the machine's applications. A 3-jaw chuck to hold the part is optional as well.
03
Jainnher states 70 kg (154 lb) as the maximum job weight in centers for this model, the same as the other 600 mm machine. The table gives no separate figure for chucked work, so ask the maker if the part is heavy and held in a chuck.
04
The wheel size is printed as 405 x (25 ~ 50) x 152.4, diameter by width by bore, with a 455 x 50 x 152.4 wheel as an option. Maximum peripheral speed is 2,000 m/min. The grinding wheel motor is 3.75 kW, 5 HP, 4P, with 7.5 HP (5.6 kW) optional.
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