AC microLine® 400

Excellent Performance and Versatility

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Latest Technology as Standard – for outstanding Performance and Versatility

AC microLine® 400   The Main Technical Characteristics 

  • Peter Wolters AC 400 double-side batch processing machine has been designed for high-precision series processing work pieces. Due to its modular construction, AC 400 can be used as a fine grinding, lapping, honing, and polishing machine.

    Machine Features:

    • Like all machines of the microLine® series, AC 400 is based on tried and tested core components such as high-precision, pneumatic pressure system, non-contact micro measuring controller, powerful drive technology, and the PC control. Software has been developed by Peter Wolters which makes it possible to intuitively operate the machine entirely by menus. The upper wheel moves approx 500mm upwards. This and the design of the entire machine base allow comfortable access rom three sides to the process area. 

    • The machine is available with different rotating devices, drive powers and wheel speeds to match the widest possible range of work pieces. This ensures optimum machine configuration for every application. 

    • AC 400 is available with well-known, tried and tested accessories such as gap formation, alignment device, and dosing system for fine grinding/lapping or polishing compound. Accessories such as measuring sensor and post-process measurement provide data for statistical process control and offer process security when processing critical work pieces. "DataCare®", the proprietary analysis tool, captures all controller data and thus is the perfect platform for analytic process evaluation, optimization and fault analysis.

    • AC 400 can load and process work pieces with a maximum diameter of 100 mm and a maximum thickness of 50 mm.
  • Long machine life, reliability, profitability, versatility and automation are all prominent features of the AC microLine® series.

    Proven PETER WOLTERS manufacturing standards – Made in Germany.
    • Adapts easily to customer's application requirements
    • High degree of stiffness and precision
    • Fast - ergonomic loading and unloading, as well as easy tool changing
    • Optimum surface quality, flatness, thickness tolerance and plane parallelism with narrowest tolerances on the work piece
    • Extreme temperature stabilization over the tool surface and therefore constant flatness of the working wheels
    • Reduced cost per piece, shorter loading, unloading, non-productive times.
    • Comprehensive, clearly structured screens
    • Excellent machining results due to compliance with freely programmable process parameters
    • Fast response to load changes (hysteresis-free)
    • User friendly, intuitive operation
    • Capable of storing 60 or more processing programs
    • Low operating costs
    • Individual process development, highest productivity
    • Easy to maintain
    • AC 400 can be configured to the respective application and is suitable for grinding, lapping, honing, polishing and deburring.
    • Size of the work piece to process is the basis for selecting the optimum rotating device. Several variants to choose from.
    • Machine comes with suitable filters and cooling components  depending on the application.
    • Remote mainenance solution RangeCare® via mobile communication or VPN

  • Offering precision within the latest technology

    Pult AC 400

    Process oriented visualization (Human Machine Interface – HMI):

    • Detailed graphic display of process data
      • Pressure and stock removal
      • Speed (rpm)
      • Torque
      • Temperatures
    • Comprehensive, clearly structured adjustment of several machine options, i.e. process control, swivel mounted cabinet and frame, countdown counter, etc.
    • Temperature monitoring (working wheel, cooling lubricant)
    • Monitoring of the cooling lubricant flow rate
    • Language switch-over
    • Touch-down monitor of upper working wheel

    Various error diagnostic functions through:

    • Text display of error messages
    • Error location display
    • Error history

    Process-Data-Recording (DataCare®) – recording of process data (speeds, torques, etc.) and other meta data on external data media.

  • AC 400 Technical Data:


    Machine modelAC 400
    Version F, P L, P, D
    Wheel diameter (mm) 425 / 445 / 475 425 / 445 / 475
    Ring width (mm) 120 / 150 120 / 150
    Max. load pressure (daN) 300 / 500 300 / 500
    Upper drive power (kW) 3 / 4 2 / 3
    Upper drive speed (rpm) 175 / 320 100 / 175
    Lower drive power (kW) 3 / 4 2 / 3
    Lower drive speed (rpm) 175 / 320 100 / 175
    Center drive power (kW) 1.2 1.2
    Center drive speed (rpm) 100 100
    Working wheel cooling wihout / Labyrinth without / Labyrinth
    Dimensions (H x W x D) (mm) 2200 x 800 x 1545 2200 x 800 x 1545
    Weight (kg) 1500 1500
    Max. work piece thickness (mm) 50 50
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  •   Customer CONTACT


    Phone: +49 (0) 4331 458-0
    Fax: +49 (0) 4331 458-290

    LAPMASTER WOLTERS is always there for you: around the world and around the corner – or here on our Website!


AC microLine® Series — Latest Technology as Standard – for outstanding Performance and Versatility

Ideas – Drive – Flexibility – Commitment. That’s exactly what makes PETER WOLTERS a world leader in the field of manufacturing Single- and Double-Wheel Fine Grinding, Lapping, Polishing, Flat Honing and Deburring Machines for flat work pieces.

PETER WOLTERS meets market requirements with a wide range of new, innovative products, offering its customers trend-setting solutions, since 1804. Products for Today and Tomorrow.


Latest Technology as Standard –
for outstanding Performance and Versatility
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