Amada TECHSTER 84
Key Specifications
standard chuck size
traverse travel
cross travel
spindle center height
wheel spindle power
grinding wheel size
Overview
The Amada TECHSTER 84 is a CNC forming surface grinder from Amada’s TECHSTER series, designed for medium-duty precision surface and profile grinding. The 84 designation reflects the 800 x 400 mm standard chuck size, placing it as the compact model in the lineup alongside the larger 104 and 126.
The TECHSTER 84 features ball screw drive with direct drive on traverse, cross, and vertical axes for smooth, backlash-free positioning. Axis travels span 1,000 mm (traverse) and 450 mm (cross), with a spindle center height of 500 mm. The 7.5 kW (peak) / 4 kW (continuous) wheel spindle drives grinding wheels up to 355 x 38-50 x 127 mm -- substantial capacity for both heavy stock removal and precision finishing.
The TECHSTER series is positioned below the ultra-precision WINSTAR and MEISTER lines, targeting tool rooms that need CNC-controlled surface grinding with forming capability at an accessible price.
New TECHSTER 84 systems typically price between $120,000 and $200,000.
Full Specifications
| Parameter | Value |
|---|---|
| Standard Chuck Size | 800 x 400 |
| Traverse Travel | 1,000 mm (39.4 in) |
| Cross Travel | 450 mm (17.7 in) |
| Spindle Center Height | 500 mm (19.7 in) |
| Wheel Spindle Power | 7.5 kW peak / 4 kW continuous |
| Grinding Wheel Size | 355 x 38-50 x 127 mm |
| Drive System | Traverse |
| Model | TECHSTER 84 |
| Nc Control Axis | Simultaneous 2 Axis + 1 Axis |
| Travels | 1000/450 |
| Spindle Center Height From Table | 500 |
| Wheel Spindle | 7.5 ~ 4 |
| Wheel Spindle Grinding Wheel Size | 355 x 38 ~ 50 x 127 |
| Cross | Ball Screw Drive & Direct Drive |
| Vertical | Ball Screw Drive & Direct Drive |
Specifications sourced from amadamca.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 7.5 kW peak spindle with 355 mm wheel for aggressive stock removal on hardened steels
- Ball screw with direct drive on all axes for smooth backlash-free positioning
- 800 x 400 mm chuck handles a wide range of standard tooling components
- 1,000 mm traverse accommodates longer workpieces than MEISTER series
- More accessible pricing than WINSTAR and MEISTER platforms
- 127 mm wheel bore handles heavy-duty wheel assemblies
Limitations
- Medium-duty precision does not match sub-micron WINSTAR or MEISTER accuracy
- No published ATC or automation options
- Limited published accuracy specifications
- Amada Machinery America service may not cover all regions
Best For
Frequently Asked Questions
01
Refers to the 800 x 400 mm standard chuck size. TECHSTER 104 is 1,000 x 400 mm and 126 is 1,200 x 600 mm.
02
TECHSTER 84 has larger table (800 x 400 mm vs 400 x 200 mm) and more power (7.5 kW vs 2.2 kW). MEISTER 52 is ultra-precision with finer resolution. Choose TECHSTER for general precision, MEISTER for ultra-high-precision.
03
Ball screws provide precise linear positioning while direct drive motors eliminate gear backlash for smooth accurate axis motion.
04
Not published. With 355 mm wheel, typical surface speeds of 25-35 m/s would run approximately 1,300-1,900 RPM.
Videos
KRAFFTER Machine Tools
KS TECNO
Amada Machinery America, Inc.
pL LEHMANN
Amada Machine Tools Europe GmbH
