Product Overview
The M7135A/M7140A Saddle Movable Surface Grinder (Series: M7135A-1/-2/-3 & M7140A-1/-2/-3) is a high-precision grinding solution engineered for flat surface processing of metal workpieces. Featuring a unique traverse table layout, advanced transmission system, and top-tier grinding head performance, this saddle movable grinder delivers exceptional rigidity, wear resistance, and machining accuracy—catering to the demands of mold manufacturing, automotive parts processing, and precision component production. With hydraulic and motor-driven dual modes, it balances automation and flexibility for diverse industrial needs.
Key Features
Unique Layout & Superior Precision
Adopting a traverse table design, the bed, traverse table, and worktable use flat-V type guide rails with PTFE guide rail tape. The column features a 6-face contact inserted steel rectangular guide rail—offering rigidity, wear resistance, and movement sensitivity far exceeding conventional models. This ensures stable overall performance and consistent grinding precision.
Outstanding Transmission System
Worktable Longitudinal Direction: Hydraulically driven with a dedicated reversing valve and double-rod hydraulic cylinder, eliminating crawling at slow speeds (down to 3 m/min) for precise tool setting.
Traverse Table Lateral Direction: AC motor-driven with a precision T-screw and synchronous toothed belt deceleration. The HT300 cast iron enclosed box-type structure (with internal dense ribs) ensures stable precision and strong shock resistance; a handwheel assists in groove grinding for added convenience.
Grinding Head Vertical Direction: AC motor-driven with a precision T-screw. The column guide rail undergoes quenching and tempering, paired with an organ-type protective cover for reliable transmission and long service life.
Top-Tier Grinding Head Performance
The sleeve-type spindle is equipped with HRB precision angular contact ball bearings, optimized for high rotation accuracy, strong grinding capability, and vibration resistance. It outperforms similar products in heavy cutting scenarios, ensuring durability and consistent surface quality.
Efficient Lubrication & Cooling
Combining automatic + manual lubrication, the system balances efficiency and flexibility. The cooling system features a high-lift water pump and two-stage precipitation circulation—achieving efficient heat dissipation and environmental protection, while preventing workpiece deformation.
Stable & User-Friendly Electrical System
An independent fully enclosed control cabinet protects components for stable operation. Buttons support both motor-driven and manual operations, aligning with user habits and reducing training time for operators.
Detailed Specifications
Technical Specifications | Unit | M7135A-3 | M7135A-2 | M7135A-1 |
Worktable | - | - | - | - |
Surface dimensions (L×W×H) | mm | 1000×350×405 | 800×350×405 | 600×350×405 |
Longitudinal movement | mm | 1020 | 820 | 620 |
Lateral movement | mm | 390 | 390 | 390 |
Maximum load | kg | 400 | 400 | 360 |
T-slot (width×number) | mm-n | 18×3 | 18×3 | 18×3 |
Speed | m/min | 0~26 | 0~26 | 0~26 |
Grinding Parameters | - | - | - | - |
Automatic front/rear feed (continuously variable) | mm | 0.5~20 | 0.5~20 | 0.5~20 |
Handwheel blade size (grid/circle) | mm | 0.02/4 | 0.02/4 | 0.02/4 |
Grinding wheel dimensions (OD×W×ID) | mm | Φ350×32×127 | Φ350×32×127 | Φ350×32×127 |
Spindle speed | r/min | 1450 | 1450 | 1450 |
Fine adjustment (lift/rev) | mm | 0.04 | 0.04 | 0.04 |
Fine adjustment (feed/scale) | mm | 0.001 | 0.001 | 0.001 |
Motor & Dimensions | - | - | - | - |
Spindle motor power | Kw | 5.5(Y132S-4 B5) | 4(Y112M-4 B5) | 4(Y112M-4 B5) |
Machine overall dimensions (L×W×H) | mm | 2660×1722×1917 | 2260×1722×1917 | 1860×1722×1917 |
Net weight/gross weight | kg | 3500/3900 | 3000/3300 | 2400/2700 |
Technical Specifications | Unit | M7140A-1 | M7140A-2 | M7140A-3 |
Worktable | - | - | - | - |
Surface dimensions (L×W×H) | mm | 800×400×405 | 1000×400×405 | 1250×400×405 |
Longitudinal movement | mm | 820 | 1020 | 1270 |
Lateral movement | mm | 440 | 440 | 440 |
Maximum load | kg | 400 | 400 | 450 |
T-slot (width×number) | mm-n | 18×3 | 18×3 | 18×3 |
Speed | m/min | 0~26 | 0~26 | 0~26 |
Grinding Parameters | - | - | - | - |
Automatic front/rear feed (continuously variable) | mm | 0.5~20 | 0.5~20 | 0.5~20 |
Handwheel blade size (grid/circle) | mm | 0.02/4 | 0.02/4 | 0.02/4 |
Grinding wheel dimensions (OD×W×ID) | mm | Φ350×32×127 | Φ350×32×127 | Φ350×32×127 |
Spindle speed | r/min | 1450 | 1450 | 1450 |
Fine adjustment (lift/rev) | mm | 0.04 | 0.04 | 0.04 |
Fine adjustment (feed/scale) | mm | 0.001 | 0.001 | 0.001 |
Motor & Dimensions | - | - | - | - |
Spindle motor power | Kw | 5.5(Y132S-4 B5) | 5.5(Y132S-4 B5) | 5.5(Y132S-4 B5) |
Machine overall dimensions (L×W×H) | mm | 2260×1790×1917 | 2660×1790×1917 | 3100×1790×1917 |
Net weight/gross weight | kg | 3000/3300 | 3800/4200 | 4200/4600 |
Application Scenarios
Mold & Die Manufacturing
Precision grinding of mold bases, cavities, and inserts—with 0.001 mm fine adjustment and stable spindle performance ensuring mirror-like surface quality.
Automotive Parts Processing
Ideal for grinding engine blocks, gearboxes, and brake components, where flatness and surface finish are critical for performance.
Precision Machinery Components
Suitable for processing hydraulic parts, bearings, and tooling—thanks to its high rigidity and repeated positioning accuracy (consistent movement without crawling).
Aerospace & Electronics
Grinding of lightweight alloy components and electronic device housings, where gentle yet precise material removal is required.
FAQ
What guide rail type does the machine use, and what are its advantages?
The worktable uses flat-V type guide rails with PTFE tape, and the column uses 6-face contact inserted steel rectangular guide rails. These designs offer superior rigidity, wear resistance, and movement sensitivity—outperforming conventional guide rails for long-term precision.
Can the machine handle both automatic and manual operations?
Yes! The electrical system supports both motor-driven (automatic) and manual operations. Buttons are designed for user-friendliness, making it easy to switch modes for different processing needs.
How does the cooling system protect workpieces and tools?
The two-stage precipitation circulation cooling system filters impurities and maintains stable temperature, preventing workpiece deformation and extending grinding wheel life—while being environmentally friendly.
What is the maximum workpiece size the machine can handle?
The M7140A-3 model supports workpieces up to 1250×400×405 mm, with a maximum load of 450 kg—suitable for medium to large precision parts.
Call to Action
Upgrade your precision grinding process with the M7135A/M7140A Saddle Movable Surface Grinder! Inquire Now to get a personalized quote, technical drawings, and free operational training. Whether you need automatic grinding for mass production or manual control for custom parts, this machine delivers reliability and accuracy. Add to Basket today to enjoy fast delivery and 24/7 after-sales support—invest in a grinder that grows with your business!
