VELTRIX THREADPRO TP-690N
High-speed CNC internal thread grinding for precision bores.
The TP-690N is a dedicated CNC internal thread grinding machine, engineered for precision thread profiles inside bores up to approximately 8.4 in (212 mm) in diameter. Its high-frequency wheel head spins from approximately 5,350 up to 32,000 RPM, enabling fine internal thread forms to be ground accurately even at small wheel diameters. Complete with a programmable helix function and full coolant management, the TP-690N is built for manufacturers producing precision internally-threaded components at scale.
Key Features
- CNC precision internal thread grinding for complex and high-accuracy components.
- Maximum grinding length up to 100 mm with a lead range of 0–300 mm.
- Software for simplified thread-profile programming and grinding setup.
- High-frequency grinding spindle with programmable speeds of 5,000–32,000 rpm.
- Programmable helix angle ±20° for grinding different thread geometries.
- Direct-drive torque-motor workhead with precision rotary feedback for accurate synchronization.
- Precision X and Z axes with linear-scale/dual-position feedback for accurate positioning.
- Integrated wheel-dressing system supporting diamond disc, roll or single-point diamond dressing.
- Flexible workholding through faceplate, precision chuck or dedicated fixtures.
- High-capacity coolant system with temperature control, separator and centrifuge for stable grinding conditions.
- Fully enclosed machine construction with spindle cooling/chiller and provision for fume extraction.
- Suitable for precision applications such as ball nuts, gauges, precision threaded bores and special internal thread forms.
- Handles component diameters from 50–300 mm and grinding diameters from approximately 8–200 mm, depending on the component.
Standard Equipment
- Advanced CNC control with dedicated thread-profile programming software
- Advanced HMI operator interface
- High-frequency wheel head
- Full coolant system with programmable helix function
- Centrifugal and magnetic separators for coolant management
- Absolute encoders fitted on all axes
- Work-head mounted dresser
- Spindle chiller and AC-conditioned electrical cabinet (ECC)
- Totally enclosed machine hood
- Includes: diamond dressing media, grinding wheel, and hard media quill
Technical Data — TP-690N
| Specification | Veltrix Published Value |
|---|---|
| Grinding Type | Internal |
| Max. Swing Diameter | 12 in (304.8 mm) |
| Min. / Max. Grinding Diameter | 0.32 in / 8.36 in (8.1 mm / 212.3 mm) |
| Min. / Max. Grinding Length | 4.3 in (109.2 mm) |
| Work Spindle Speed | 0.4176 – 125 RPM |
| Wheel Head Spindle Speed | 5000 – 32,000 RPM |
| Grinding Wheel Diameter | 2.6 in (66 mm) |
| Grinding Wheel Width | 0.8453 in (21.5 mm) |
| A-Axis Helix Capacity | ± 20° |
| Z-Axis Table Slide Travel | 21 in (533.4 mm) |
| X-Axis Wheel Slide Travel | 13 in (330.2 mm) |
| Z / X Rapid Traverse | 295 / 295 IPM |
| Wheel Dresser Type | Fixed |
| Wheel Dresser Speed | 0 – 6,250 RPM (bi-directional) |
| Machine Footprint | 160 in x 150 in |
| Machine Weight | 15,000 lbs |
Detailed technical specifications can be provided upon request. Specifications and features are subject to change without prior notice. Optional accessories and special configurations can be offered on request. Final specifications and scope of supply shall be as confirmed in our techno-commercial offer. Minor customization can be offered based on customer requirements and technical feasibility.
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Precision grinding and machining systems engineered for the industries that cannot compromise on tolerance.