Overview of Double Sided Precision Grinding Machine

The double-sided precision grinding machine is a high-efficiency solution tailored for simultaneous grinding of both surfaces of workpieces. It is applicable to metallic materials (stainless steel, aluminum alloys, titanium alloys) as well as non-metals (ceramics, engineering plastics, optical glass). By processing upper and lower surfaces at the same time, the system guarantees exceptional parallelism (≤0.002 mm) and ultra-smooth finishes (Ra ≤0.1 μm). This makes it an essential piece of equipment for industries such as automotive parts, semiconductor packaging, precision bearings, and optical devices.

Compared with conventional single-sided grinders, the double-sided design drastically improves productivity through dual-wheel action while reducing alignment errors during clamping. Combined with modular automation functions (auto loading/unloading, closed-loop pressure control, in-line thickness inspection), it fully meets the needs of modern smart and mass production lines.

Technical Specifications Double Sided Precision Grinding Machine

Operating Principle of Double Sided Precision Grinding Machine

1. Dual-Wheel Grinding Mechanism

   • Two precision grinding wheels (diamond/CBN) rotate in opposite directions.

   • Workpieces are moved in planetary carriers for simultaneous double-surface grinding.

   • Grinding pressure (0.1–1.0 MPa) is finely controlled via servo or hydraulic systems.

2. Positioning & Feeding

   • High-precision linear guides and servo drives ensure ±0.001 mm accuracy.

   • Optical or laser thickness gauges allow in-process monitoring and automatic correction.

3. Cooling & Filtration

   • High-pressure coolant reduces heat deformation and flushes away chips.

   • Equipped with magnetic + centrifugal filtration for coolant recycling and wheel protection.

4. Smart Control System

   • Siemens/Mitsubishi PLC with 10" HMI provides parameter storage, fault diagnosis, and remote control.

   • Adaptive algorithms automatically adjust grinding force, speed, and feed according to material hardness.

Key Features of Double Sided Precision Grinding Machine

1. Rigid Machine Frame

   • Cast iron structure with aging treatment, excellent vibration damping.

   • Precision-grade bearings and preloaded ball screws achieve ≤0.003 mm repeatability.

2. Intelligent Operation

   • PLC & inverter system with <1 ms response.

   • Multilingual HMI with recipe management and real-time process display.

3. Flexible, Modular Design

   • Compatible with robotic arms and conveyors for unmanned operation.

   • Supports multiple wheel types (diamond, CBN, resin bond) to handle metals, ceramics, composites.

4. High Precision & Versatility

    

    

    

   • Closed-loop pressure control (±1% accuracy).

   • Custom fixtures for irregular shapes (e.g., turbine blade roots, sealing rings).

Application Fields of Double Sided Precision Grinding Machine

• Automotive:
  Crankshaft ends, piston rings, and gears requiring ≤0.005 mm parallelism and Ra ≤0.2 μm.

• Semiconductor & Electronics:
  Ceramic substrates ground to ±0.001 mm; silicon wafer thinning for 3D IC packaging.

• Precision Machinery:
  Bearings, shims, hydraulic blocks with ±0.002 mm tolerances.

• Optics & Consumer Electronics:
  Smartphone glass finishing (Ra ≤0.05 μm); sapphire camera lenses with minimal stress deformation.

• Aerospace:
  Superalloy turbine blade tenons and lightweight ceramic components for satellites.

FAQ | Double-Sided Precision Grinding Machine

Q1: What types of materials can the machine process?

A1: It is suitable for both metals (stainless steel, aluminum alloy, titanium alloy, etc.) and non-metals (ceramics, plastics, glass, quartz).

Q2: What is the main advantage compared with single-sided grinders?

A2: Dual-surface grinding doubles efficiency, reduces clamping errors, and ensures superior flatness and parallelism in one cycle, making it ideal for high-volume precision production.

Q3: What level of accuracy can be achieved?

A3:

Parallelism: ≤0.002 mm

Thickness tolerance: ±0.001 mm

Surface roughness: Ra ≤0.1 μm

Q4: What is the maximum workpiece size?

A4:

Diameter: up to φ180 mm

Thickness: up to 75 mm

Q5: How is process stability maintained?

A5:

Closed-loop pressure control (accuracy ±1%)

Servo-driven positioning with linear guides

Adaptive speed & pressure adjustment via intelligent PLC control

Q6: Does it support automation?

A6: Yes. The system supports robotic loading/unloading, conveyor integration, and unmanned continuous production for 24/7 operation.