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Home > High-Precision Double-sided Lapping/Polishing Machine

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28B/30B/32B/35B

High-Precision Double-Sided Grinding/Polishing Machine
  • Center Gear, Gear Ring

    Can be raised and lowered automatically and independently via an electric button

  • Power

    Input: 3-phase 380V 50Hz

    Current Capacity: 200A

  • Air Supply

    0.5 ~ 0.6 MPa, 90 NL/min

  • Main Components

    Bearings: Hydrostatic bearings + THK cross-roller bearings + NSK and other Japanese brands

    Motor and Gearbox: TECO (Taiwan) + In-house high-precision worm gear reducer

    Pneumatic Components: SMC + CKD

    Programmable Logic Controller (PLC): Mitsubishi Electric

    Frequency Inverter: Mitsubishi Electric

    Human-Machine Interface (HMI): Mitsubishi Electric

    Castings: Gray Cast Iron HT300

    Gears: Forged gear steel, high-frequency surface hardening after gear cutting, followed by gear grinding

    Base: Integral cast base

    Electrical Cabinet: Separate electrical cabinet

  • Processing Pressure

    Minimum Working Pressure: 90 kg (900 N)

    Standard Maximum Working Pressure: 1500 kg (15000 N) (can be extended based on application requirements)

    Pressure Control Method: Precision pressure sensor + PLC + electrically controlled proportional valve to achieve closed-loop pressure feedback control, enabling real-time monitoring and calibration of pressure to ensure accuracy and stability.

  • Rotational Speed

    Lower Anvil: 1–60 RPM; Upper Anvil: 1–20 RPM

    Center Gear: 1–30 RPM; Ring Gear: 1–30 RPM

  • Operating Environment

    Temperature: 15–35°C

    Humidity: Below 85% (to prevent condensation);

    Air Quality: Free of corrosive, flammable, or harmful gases; free of pollutants, dust, etc.

Device Parameters
  • Machine dimensions: Length 3850 mm * Width 3000 mm * Height 3600 mm (2940 mm with cylinders removed) 

  • Machine weight: 28000 kg

Model 28B-5L/P 30B-5L/P 32B-5L/P
Final dimensions Grinding(mm) Φ1830×Φ710×t80 Φ2022×Φ658×t80 Φ2145×Φ735×t80
Polishing(mm) Φ1922×Φ597×t80 Φ2062×Φ618×t80 Φ2200×Φ680×t80
Planetary gear parameters Modulus M4 M4 M5
Number or teeth Z178 Z190 Z162
Pitch circle(mm) 712 760 810
Drive method 4 motors
Number of planetary gears 5 5 5
Maximum machining diameter(mm) 660 700 760
Maximum processing thickness(mm) 35 35 35
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