Model 20 Single-Side Lapping Machine

Heavy-Duty Performance for Precision Lapping Applications

The Lapmaster Wolters Model 20 is a robust, precision-engineered single-side lapping machine designed to deliver consistent performance, reliability, and accurate flatness control. Available in open-face, pneumatic lift, and Diamond Spray Unit (DSU) configurations, the Model 20 provides a versatile solution for a wide range of precision surface finishing applications.

Built with a heavy-duty base, an integrated drive motor, and a reduction gearbox, the Model 20 offers exceptional stability and dependable operation. The machine features a vertically adjustable worktable and three conditioning rings equipped with roller yoke and bearing assemblies, enabling effective in-process lap plate flatness control.

Its integrated abrasive distribution system accommodates both water- and oil-based lapping slurries, ensuring consistent compound delivery throughout the lapping process. Powered by a high-torque 0.75 kW (1.0 hp) motor with a gear reducer, the Model 20 combines durable construction, precision control, and operational flexibility to meet demanding surface finishing requirements.

Key Features & Benefits

• Heavy-Duty Construction: Rigid machine base and vertically adjustable worktable provide stability and durability for precision lapping operations.

• Precision Flatness Control: Three cast iron conditioning rings support consistent lap plate flatness throughout operation.

• High-Quality Lapping Surface: High-density, serrated cast iron lap plate designed for reliable material removal and uniform surface finishing.

• Integrated Abrasive Distribution: Multi-point compound delivery system supports both water- and oil-based lapping applications.

• Powerful Drive System: High-torque 0.75 kW (1.0 hp) motor and gear reducer provide dependable performance.

• Flexible Machine Configurations: Available in open-face, pneumatic lift, and DSU versions to accommodate different operational requirements.

• Simple Operator Controls: Convenient start/stop controls and a multi-range digital process timer support straightforward operation and repeatable processing.

• Versatile Configuration Options: Optional tooling, variable-speed control, cooling, and abrasive delivery enhancements allow the machine to be tailored to specific applications.

Standard Equipment

• Heavy-duty, vertically adjustable worktable

• High-density, serrated cast iron lap plate

• Three high-density, serrated cast iron conditioning rings

• Three pressure weights

• Three blank workholder discs

• Three felt pads

• Integrated abrasive distribution system with pump and multi-point delivery

• Operator control panel with start/stop controls and digital process timer

• Waste collection tank

Available Machine Configurations

Open-Face Version

Provides convenient access to the lapping area for workpiece loading, unloading, and routine operation.

Pneumatic Lift Version

Features a pneumatic lifting arrangement designed to assist with handling and improve operational convenience.

Diamond Spray Unit (DSU) Version

Supports diamond abrasive applications through a dedicated spray delivery system for specialized precision finishing requirements.

Optional Tooling

• Flatness gauge

• Solid stainless steel backing plates

• Composite-faced plates

• Solid cast iron lap plate

• Polishing pads

Optional Features

• Electronic variable-speed drive

• Water-cooling system

• Peristaltic pump

• Alternative lap plates

• Bench or trolley mounting

• Diamond Spray Unit (DSU)

Precision, Reliability, and Versatility

Designed for dependable operation and consistent results, the Model 20 combines heavy-duty construction with flexible machine configurations and precise process control. Whether equipped with an open-face design, pneumatic lift, or diamond abrasive delivery system, the Model 20 provides a reliable solution for applications requiring accurate flatness, consistent surface quality, and repeatable lapping performance.