
CNC Precision Thread Grinder
LJ-TG series has easy to operate and powerful features as its futures. Wide Applications–Ideal for : ball screw, plastic screw, diamond roller, taps, thread gauge and general thread.


Extracted from customer machine inspection accuracy report The workpiece three-meter ball screw meets C3 accuracy


Wheel dressing axis (A/B) is mounted on the wheelhead, allowing in-place dressing when the wheelhead is rotated for grinding an angled thread. This eliminates the need to reset the wheel head position, significantly reducing adjustment time.

For mass production, a forming dresser ensures contour accuracy and speeds up dressing time. For small-batch, diverse machining, a single-point dresser can be used, with the program generating multiple dressing paths to enhance flexibility and accommodate various workpieces.

Easy Operation & Efficient Smart Grinding – Generates complex grinding paths Pair with variety controller brands FANUC, Siemens, SYNTEC and so on.
| Grinding Capability | |
|---|---|
| Max Work Length between Center | 650mm |
| Max Grinding Length | 550mm |
| Max Grinding Diameter | 250mm |
| Max Grinding Weight | 100kgs |
| Heights of Center | 185mm |
| Wheelhead | |
| Grinding Wheel Size | φ406×10~40×φ203.2(160) |
| Min Wheel Outer Diameter | φ320 |
| Grinding Wheel Speed | 0~2030RPM(變頻無段變速) |
| Tilt Rotation Angle of Wheel | (R)±20° |
| Headstock | |
| Max Chuck Size | 7" φ58 |
| Spindle Speed | Max:100 |
| Min Rotation Angle | 0.005 |
| Spindle Taper | MT#4 |
| Tailstock | |
| Tailstock Quill Taper | MT#4 |
| Tailstock Quill Stroke | 20mm |
| Worktable | |
| Worktable Stroke | 650mm |
| Max Table Moving Speed | 4,000mm/min |
| CNC Control Axial | |
| Grinidng Wheel Axial | X |
| Wheel Angle Axis | R / C2 |
| Worktable Moving Axial | Z |
| Work Spindle Axial | C |
| Wheel Dressing Axial | A |
| Wheel Dressing Axial | B |
| Machine Size | |
| Machine Dimensions (LxWxH) | 360x200x320cm |
| Machine Net Weight | 6,000kg |
Specifications are for reference only. Final specs are based on actual design. LIH JAAN reserves the right to change without notice.






29° ACME Thread 30° Trapezoidal Thread 55° Whitworth Thread 60° V- Thread
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