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Email: cncengineer@minnuo.com
Max Longitudinal Travel: 1130mm · Table Size: 400×1000mm · Cross Travel: 450mm
The SGA-40100AHD is a high-capacity, full-range saddle moving surface grinder built for large workpieces that demand both accuracy and rigidity. With a 400×1000mm table and 1130mm longitudinal travel, it is ideal for mold processing, tool & die manufacturing, and machine part rebuilding where stability and flatness are critical.
SGA Series
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On-site installation service
Customized design
Why Choose Our CNC Solutions
Key Features
- ● Extended Work Envelope: 400×1000mm Table. Accommodates wide and long components in one clamping setup, minimizing repositioning.
- ● Powerful Cast Frame & Rigid Saddle Movement: Ensures stable performance under heavy loading and continuous grinding cycles.
- ● Auto Feed in X/Y/Z: Fully automated feed system with programmable vertical increments ensures high efficiency and reduced operator fatigue.
- ● Precision Spindle Assembly: Designed for low runout and high finish quality on steel, cast iron, and alloy components.
- ● Efficient Coolant Management: Keeps the work zone clean and temperature stable, preserving flatness and extending tool life.
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Recommended Configurations
- ● Large Fine-Pitch Magnetic Chuck： Securely clamps full-length plates without distortion.
- ● 2-Axis DRO System： Improves positioning precision, especially on depth-sensitive parts.
- ● Automatic Lubrication System： Reduces wear and extends machine life under heavy use.
- ● Parallel Overhead Wheel Dresser： Maintains flatness and wheel profile during long cycles.
- ● Coolant System with Magnetic Separator： Enhances coolant clarity and grinding surface integrity.
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Application Case
- ● Client: Industrial Mold and Fixture Factory – Thailand
- ● Workpiece: Hardened steel die base, 980×360×50mm
- ● Setup: SGA-40100AHD with fine pole chuck, DRO, coolant system
- ● Results: Flatness tolerance: ≤ 4 μm Surface finish: Ra 0.18 μm Cycle efficiency increased by 38% Setup time reduced due to longer table and DRO guidance Excellent thermal stability across 60-minute cycles
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Product Specifications
| Specification | Unit | SG-2050H/AH | SGA-2550AH | SGA-3063AH | SGA-30100AH | SGA-4080AH | SGA-40100AH | |
|---|---|---|---|---|---|---|---|---|
| SG-2050AHR | SGA-2550AHR | SGA-3063AHR | SGA-30100AHR | SGA-4080AHR | SGA-40100AHR | |||
| SG-2050AHD | SGA-2550AHD | SGA-3063AHD | SGA-30100AHD | SGA-4080AHD | SGA-40100AHD | |||
| Table size(w×L) | mm | 200×460 | 250×500 | 305×635 | 305×1020 | 406×813 | 406×1020 | |
| Max.longitudinal travel | mm | 510 | 560 | 765 | 1130 | 910 | 1130 | |
| Cross travel | mm | 238 | 275 | 340 | 340 | 450 | 450 | |
| Max.distance from spindle center to table | mm | 450 | 450 | 560 | 560 | 560 | 560 | |
| Magnetic chuck size | mm | 200×460 | 250×500 | 300×600 | 300×1000 | 400×800 | 400×1000 | |
| Speed of table longitudinal movement | m/min | 7~23 | ||||||
| Table transversemovement | Auto feed | mm/min | 0.1~8 | |||||
| Rapid speed | mm/min | 990 | ||||||
| Feed of handwheel | mm/div. | 0.02 | ||||||
| Wheelhead vertical movement | Auto feed | mm/stroke | ——(AH/AHR mode)0.005/0.01/0.02/0.03/0.04/0.05(Only for AHD model) | |||||
| Rapid speed | mm/min | (AH mode)460(Only for AHR/AHD model) | ||||||
| Feed of handwheel | mm/div. | 0.005 | ||||||
| Grinding wheel | Speed | rpm | 2850(50Hz)、3450(60Hz) | 1450(50Hz)、1750(60Hz) | ||||
| Size(OD×W×ID) | mm | 200×20×31.75 | 350×40×127 | |||||
| Spindle Motor | kW | 1.5 | 2.2 | 5.5 | ||||
| Hydranlic motor | kW | 1.5 | 0.75 | 2.2 | ||||
| Cooling pump motor | kW | 0.04 | 0.125 | |||||
| Elevating motor | kW | —(AH mode)0.25(AHR mode)0.5(AHD mode,servo motor) | ||||||
| Cross feed motor | kW | 0.08 | ||||||
| Max.loading capacity of table(include magnetic chuck) | kg | 120 | 180 | 270 | 400 | 500 | 600 | |
| Total rated power | kW | 3 | 3.7 | 9 | ||||
| Height of machine | mm | 1675 | 1890 | |||||
| Floor space(L×W) | mm | 1700×1200 | 2300×1650 | 2900×2200 | 4400×2200 | 3600×2400 | 4400×2400 | |
| Gross weight | kg | 1200 | 1800 | 2600 | 3300 | 3300 | 3700 | |
| Package dimensions(L×W×H) | mm | 1900×1720×2175 | 2000×2100×2175 | 2350×2220×2150 | 2950×2220×2210 | 2850×2270×2180 | 2950×2270×2210 | |
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Frequently Asked Questions
Yes. Minnuo has a professional and responsive technical support team. As long as you provide the part drawings, we can recommend a matching machine within 10 minutes for a single device. For multiple machines or a production line, we will provide a solution within 5 working days.
Yes, your company can provide customized CNC surface grinding machines for customers. Whether it's the control system, spindle power, automatic wheel change device, or exterior design, we can customize according to customer requirements to meet various processing needs.
Our manual surface grinding machines are suitable for small to medium batch production, repair workshops, and mold processing. They feature simple structure and easy maintenance, making them ideal for users with moderate automation needs but high precision requirements.
Yes, Minnuo is a professional surface grinding machine manufacturer with complete R&D, production, and testing systems. We provide both standard models and customized solutions, and have delivered equipment to customers in over 30 countries worldwide.
Minnuo has a complete set of basic production equipment. Whether it's the machine system, spindle speed, motor power, or sheet metal enclosure, we can provide customized solutions.
We are equipped with high-end machine tools from leading international brands to ensure the machining accuracy of components. Each surface grinding machine is rigorously tested before delivery and comes with a quality inspection report.
For standard models like manual surface grinding machines or regular CNC surface grinders, we have stock available for quick delivery. For customized models like the double column surface grinding machine, the delivery time is typically 30–45 working days, depending on the order.
Both are heavy-duty grinders. A gantry type surface grinding machine generally has a gantry structure, suitable for large workpiece surfaces. A double column surface grinding machine emphasizes rigidity and high precision, ideal for mold and precision part processing. We can recommend the right model based on your workpiece size and precision needs.
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