Star SU TRU TECH T93XM
Image: star-su.com, Star SU
Key Specifications
Max Spindle
Spindle Power
Accuracy
Repeatability
grinding unit
max grind length
How much does the Star SU TRU TECH T93XM cost?
Price estimate
We do not have a price for the Star SU TRU TECH T93XM 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 Star SU TRU TECH T93XM is a 3-axis CNC centerless profile grinder for small cylindrical parts: maximum grind diameter 3 in (75 mm), maximum grind length 8 in (200 mm), with a wheel of up to 8 in (200 mm). It grinds profiles on cylindrical workpieces without centers or chucks.
What sets the machine apart is the workholding. The part runs in the patented Precision Grinding Unit, either the PP-8000 or the TT-5000, which holds it at three points. A part can be taken off the regulating roller, inspected and put back by hand without indicating, so a profile can be checked mid-job and reground without introducing shank run-out.
Travels are 16 in (400 mm) in X, 9 in (225 mm) in Y and 8.6 in (218 mm) in Z, and all three axes are programmable. The spindle is rated 3 hp (2.2 kW) as standard and runs at up to 5,000 RPM under program control. Star Cutter gives a minimum accuracy of ±0.00005 in (0.0013 mm) and a minimum repeatability of ±0.000025 in (0.0006 mm).
The machine sits on a 2-ton polymer base with precision ball screws, and the footprint is 2,185 mm x 1,829 mm x 2,460 mm. Programming is done in icon based conversational software on a touch screen pendant, running on a Mitsubishi CNC. Profiles are ground with a standard 1A1 wheel, and the listed modes are profile, plunge, peel, in-feed and thru-feed grinding. Probing, automatic wheel dressing, oil filtration and mist extraction are options.
Full Specifications
| Parameter | Value |
|---|---|
| Grinding Unit | PP-8000 or TT-5000 |
| Max Grind Length | 8 in (200 mm) (application specific) |
| Max Grind Diameter | 3 in (75 mm) |
| Min Grind Diameter | Tooling dependent |
| X Axis Travel | 16 in (400 mm) |
| Y Axis Travel | 9 in (225 mm) |
| Z Axis Travel | 8.6 in (218 mm) |
| Wheel Size | 8 in (200 mm) max |
| Spindle Motor Power | 3 hp (2.2 kW) standard |
| Max Spindle Speed | 5,000 RPM max. (programmable) |
| Positioning Accuracy | ±0.00005 in (0.0013 mm) minimum accuracy |
| Repeatability | ±0.000025 in (0.0006 mm) minimum repeatability |
| Axes | 3-axis, fully programmable |
| CNC Control | Mitsubishi Advanced CNC Control Systems; Icon Based Conversational Software |
| Power Requirement | 200-480V 50/60Hz |
| Machine Dimensions | 2,185 mm x 1,829 mm x 2,460 mm (86.0 in x 72.0 in x 96.9 in) (L x W x H) |
| Shipping Size | 105 in x 73 in x 96 in H (266 cm x 185 cm x 246 cm) |
| Shipping Weight | 5,500 lbs (2,495 kg) |
Specifications sourced from star-su.com — verified 2026-10-05
Strengths & Limitations
Strengths
- 3-point workholding in the patented Precision Grinding Unit lets parts be removed, inspected and reloaded without indicating
- Minimum accuracy of ±0.00005 in (0.0013 mm) and minimum repeatability of ±0.000025 in (0.0006 mm)
- Profiles are generated with a standard 1A1 wheel, so most shapes need no formed wheel
- Icon based conversational software on a Mitsubishi CNC, with all 3 axes programmable
- 2-ton polymer base and precision ball screws
Limitations
- Grind diameter stops at 3 in (75 mm) and grind length at 8 in (200 mm)
- The standard spindle is 3 hp (2.2 kW), sized for finishing and profile work, not heavy stock removal
- Loading is manual on this model; pallet automation comes with the TRU TECH T93XM-A
- Probing, automatic wheel dressing and mist extraction are options
Best For
Frequently Asked Questions
01
The specification table gives a maximum grind diameter of 3 in (75 mm) and a maximum grind length of 8 in (200 mm), noted as application specific. Minimum diameter depends on the tooling. The wheel can be up to 8 in (200 mm) in diameter.
02
It is the patented workholding unit at the centre of the machine, offered as the PP-8000 or the TT-5000. It supports the part at three points against a regulating roller. Star Cutter states that a part being ground can be removed, inspected and returned by hand without any indicating, which is what allows parts to be reloaded and reground without shank run-out.
03
The TRU TECH T93XM-A is the same grinder with automatic loading. The TRU TECH T93XM-A table lists a maximum grind diameter of 1 in (25 mm) and a maximum grind length of 10 in (254 mm), against 3 in (75 mm) and 8 in (200 mm) here. Travels, the 3 hp (2.2 kW) spindle and the accuracy figures are the same on both.
04
A Mitsubishi CNC with icon based conversational software, operated from a touch screen pendant. All 3 axes are programmable, with travels of 16 in (400 mm), 9 in (225 mm) and 8.6 in (218 mm). Spindle speed is set in the program, up to 5,000 RPM.
