ALEX MACHINE TOOLS
Grind parts to close tolerances with fine surface finishes. 20" to 60" table sizes, 7.5 to 75 HP spindle motors, CNC & PLC controls, and sliding table options across the full lineup.
Trusted by Honda, Schaeffler, Timken, Mitsubishi & more — 50+ years of proven precision
Work directly with our team — no middlemen, no delays
Automotive, aerospace, bearings, heavy equipment, and more
Get your team up and running fast with on-site support
Minimal downtime and long machine lifespan by design
Hold tighter tolerances with consistent, repeatable results
Ongoing maintenance, spare parts, and technical assistance
Our engineering team reviews your application and recommends the right setup
World-class manufacturing with local sales and support
From the compact R-20 to the workhorse R-60, find the perfect fit for you
30" magnetic chuck, 25 HP spindle motor. Ideal for mid-range precision grinding with full CNC capability and automated cycles.
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40" magnetic chuck, 30 HP spindle motor. A versatile workhorse for high-volume production with reliable PLC-driven operation.
Get a QuoteEvery model available in CNC (Siemens, Fanuc) or PLC configuration. Open & closed guard options
Accessories: coolant systems, linear glass scale (vertical axis), in-process gauging, magnetic separator, paper band filter, compact band filter, chiller unit
R-80 — coming soon
Precision, power, and performance
This video demonstrates the precision and performance of the R-40 CNC, part of Alex Machine Tools' renowned vertical spindle lineup. Whether you need speed, accuracy, or durability, our grinders deliver exceptional results.
Technical specifications across all models
| Specification | Unit | R-20 | R-30 | R-40 | R-50 | R-60 |
|---|---|---|---|---|---|---|
| Magnet Table Diameter | mm (in) | 500 (20) | 750 (30) | 1000 (40) | 1250 (50) | 1500 (60) |
| Segment Wheel Diameter | mm (in) | 350 (14) | 450 (18) | 550 (22) | 700 (28) | 810 (32) |
| Segments per Set | Nos | 8 | 8 | 10 | 12 | 14 |
| Max Wheel Clearance | mm (in) | 150 (6) | 250 (10) | 250 (10) | 350 (14) | 500 (20) |
| Spindle Speed | rpm | 1200 | 960 | 750 | 500 | 460 |
| Table Speed | rpm | 10 & 20 | 7.5 & 15 | 6 & 12 | 5 & 10 | 4 & 10 |
| Auto Feed per Min | mm (in) | 0.05 – 10 (0.002 – 0.04) |
0.05 – 10 (0.002 – 0.04) |
0.05 – 10 (0.002 – 0.04) |
0.05 – 10 (0.002 – 0.04) |
0.05 – 10 (0.002 – 0.04) |
| Spindle Motor | hp (kW) | 7.5 (5.5) | 25 (18.5) | 30 (22) | 60 (45) | 75 (55) |
| Table Motor | hp (kW) | 1/1.5 (0.75/1.1) |
2/3 (1.5/2.2) |
3/4 (2.2/3.7) |
4/5 (3/3.7) |
5/7.5 (3.7/5.5) |
| Machine Size L×W×H | mm (in) | 1750×1200×1500 (69×47×59) |
2000×1600×1900 (80×63×75) |
2000×1600×1900 (80×63×75) |
2900×2200×2400 (115×87×95) |
3200×3200×2700 (126×126×106) |
| Net Weight | kg (lb) | 2000 (4400) | 5000 (11000) | 6500 (14500) | 9000 (20000) | 13000 (29000) |
| Gross Weight | kg (lb) | 3000 / 6500 | 6000 / 13000 | 7500 / 17000 | 10500 / 23000 | 15000 / 33000 |
• Infinitely variable automatic feed on all models • Sliding table options available
"We have been using ALEX Rotary Grinders for over 20 years; models RH500 and R40 ensure durable precision. We are highly satisfied."
"We have praised the ALEX DDH-CNC for nine years of precise and reliable grinding. We are extremely satisfied with its accuracy and service."
"We have always praised ALEX grinders for boosting productivity and quality since 2003. We find ALEX to be innovative, customer-focused, and satisfactory."
Founded in 1964, Alex Machine Tools is one of the world's leading manufacturers of surface grinding machines. Our machines are engineered and manufactured at our facility in Mumbai, India, with a dedicated team based in Houston, Texas.
With over 5,000 machines installed across 30+ countries, Alex grinders are trusted by industry leaders in automotive, aerospace, bearings, heavy equipment, and job shop manufacturing. Every machine is backed by our commitment to precision, reliability, and direct customer support.
