Amada SSR-6

$60,000 - $100,000 Updated 2026-03-19

Key Specifications

Table Size

600 x 300 mm (23.6 x 11.8 in)

Spindle Power

3.7 kW (5 hp)

max grinding area

600 x 300 mm (23.6 x 11.8 in)

max workpiece height

300 mm (11.8 in)

grinding wheel diameter

305 mm (12 in)

spindle speed

1,800 RPM (60 Hz)

Overview

The Amada SSR-6 is a precision CNC surface grinder from Amada’s SSR series, designed for high-accuracy flat surface grinding of tool steel, hardened steel, and carbide workpieces. The SSR-6 offers a grinding capacity with a table size of 600 x 300 mm (23.6 x 11.8 in), positioning it as a mid-size production surface grinder for toolrooms, die shops, and precision manufacturing environments where flatness, parallelism, and surface finish quality are critical.

The machine features a precision-ground cast iron bed with hand-scraped guideways for long-term geometric accuracy. The grinding spindle operates at 1,800 RPM (60 Hz) and accepts grinding wheels up to 305 mm (12 in) diameter, providing the peripheral speed needed for efficient stock removal and fine finishing on hardened materials. The cross-feed and downfeed axes are CNC-controlled with programmable incremental infeed as fine as 0.001 mm (0.00004 in), enabling consistent automated grinding cycles.

Amada’s SSR series incorporates an electromagnetic chuck as standard, providing secure workholding for ferromagnetic workpieces without mechanical clamping that could distort thin or delicate parts. The machine’s CNC control manages automatic grinding cycles including spark-out passes, dress compensation, and programmable wheel approach and retract sequences. This automation reduces operator dependency and ensures repeatable results across production lots.

The SSR-6 is widely used in progressive die shops for grinding die plates and punch holders, in mold shops for grinding cavity inserts and core pins, and in general precision manufacturing for producing flat reference surfaces. New machines price between $60,000 and $100,000 depending on accessories and regional market. The SSR-6 competes with surface grinders from Okamoto, Chevalier, and Kent in the mid-size CNC surface grinding segment.

Full Specifications

Parameter	Value
Table Size	600 x 300 mm (23.6 x 11.8 in)
Max Grinding Area	600 x 300 mm (23.6 x 11.8 in)
Max Workpiece Height	300 mm (11.8 in)
Grinding Wheel Diameter	305 mm (12 in)
Spindle Speed	1,800 RPM (60 Hz)
Spindle Motor Power	3.7 kW (5 hp)
Cross Feed Range	0.5 - 15 mm per pass
Downfeed Resolution	0.001 mm (0.00004 in)
Table Speed	5 - 25 m/min (variable)
CNC Control	Amada CNC with automatic cycle programming
Workholding	Electromagnetic chuck (standard)
Machine Weight	2,800 kg (6,173 lb)
Model	SSR-6
Cnc Control Type	Fanuc Oi-TD w/ Amada Software
Magnetic Chuck Diameter	24” (600mm)
Grinding Wheel Size	14” x 1.5” x 5”
Grinding Spindle Power	10 HP
Machine Floor Space Weight	6.8’ x 9.6’ and 5840 Lbs.

Specifications sourced from amadamca.com — verified 2026-03-28

Strengths & Limitations

Strengths

Precision CNC surface grinding with 0.001 mm downfeed resolution enables consistent flatness and parallelism specifications on hardened tool steel and carbide workpieces
305 mm grinding wheel capacity with 3.7 kW spindle provides efficient stock removal rates while maintaining surface finish quality on production grinding cycles
Electromagnetic chuck eliminates mechanical clamping distortion on thin die plates and delicate workpieces, critical for achieving flatness specifications under 0.005 mm
Automatic grinding cycles with programmable spark-out, dress compensation, and infeed sequences reduce operator dependency and ensure repeatable results
600 x 300 mm table covers the majority of die plate, mold insert, and precision flat surface grinding applications in mid-size toolrooms
Amada’s global service network and parts availability provide operational support for production grinding environments

Limitations

600 x 300 mm table limits workpiece size compared to larger surface grinders in the Amada lineup and competitors offering 800 mm or 1,000 mm table lengths
1,800 RPM spindle speed is standard but lower than high-speed surface grinders (3,600+ RPM) used for CBN wheel applications on hardened steel
Surface grinding only — no cylindrical, profile, or creep-feed grinding capability without additional equipment
CNC capability is focused on automated surface grinding cycles rather than full multi-axis CNC contouring found on more expensive profile grinders

Best For

Progressive die shops grinding hardened die plates, punch holders, and stripper plates requiring flatness and parallelism under 0.005 mm Mold shops grinding cavity inserts, core pins, and ejector plates to tight dimensional and surface finish specifications Precision manufacturing environments producing gauge blocks, reference surfaces, and inspection fixtures requiring sub-micron flatness Toolrooms requiring automated CNC grinding cycles for repeat production of flat components without continuous operator attendance Shops transitioning from manual surface grinders to CNC-controlled grinding for improved consistency and reduced operator skill dependency

Frequently Asked Questions

01 What does an Amada SSR-6 cost?

New Amada SSR-6 surface grinders typically price between $60,000 and $100,000 depending on accessories including coolant systems, wheel dressing options, and digital readout upgrades. Used SSR-6 machines from 2010-2020 vintage trade in the $25,000-$50,000 range depending on condition and hours.

02 What surface finish can the SSR-6 achieve?

The SSR-6 achieves Ra 0.1-0.2 micrometers with appropriate wheel selection and grinding parameters. Using fine-grit aluminum oxide or CBN wheels with reduced infeed rates and extended spark-out passes, finishes below Ra 0.1 micrometers are achievable on hardened tool steel.

03 How does the SSR-6 compare to an Okamoto surface grinder?

Okamoto’s ACC-612DX and similar models compete directly with the SSR-6 in the mid-size CNC surface grinder segment. Both offer similar grinding capacity and CNC automation. Okamoto has a larger global installed base in surface grinding specifically, while Amada offers the advantage of integration with Amada’s broader die and mold equipment ecosystem. Performance is comparable; choice often depends on existing vendor relationships and local service availability.

04 Can the SSR-6 grind carbide?

Yes, the SSR-6 can grind cemented carbide using diamond grinding wheels. The machine’s CNC downfeed control with 0.001 mm resolution is essential for carbide grinding where excessive infeed causes wheel loading and thermal damage. Use diamond wheels with appropriate bond type and coolant delivery for consistent results on carbide workpieces.