Engineered by
Lapmaster Wolters
  • US
  • UK
Precision Surfacing Solutions

Lapmaster Wolters Model 72 PL

  • Model: lapmaster-wolters-model-72-pl
  • Type/Application: Single Sided
  • Plate-Diameter (in): 72 in
  • Plate-Diameter (mm): 1829 mm
Product Description

The Model 72 machine is, as with all the other machines in the series, of the ring lapping type, but its design is different because of its larger size.
Unlike the others, which have a panel clad body, the Model 72 uses a cruciform shaped structural steel base. The mechanical reduction gearbox is mounted at the centre of the base, with the drive motor to one side. Drive is transmitted via multiple vee belts, and the moving parts of the system are enclosed within a mesh guard. At the end of each arm of the cross are mounted hollow section upright columns.
These support the trough surrounding the lap plate and provide the mounting point for each of the four roller yokes. The cast iron serrated lap plate is made up of sixteen individual segments, which are bolted to the support plate. This is a single casting which is located on a tapered cone fitted to the output shaft of the reduction gearbox.
The drive system incorporates, as standard, an electronic soft startwhich will smoothly accelerate the lap plate from standstill to full speed, 36 rpm, over a controlled time period. This is a preset, though it can be adjusted if required to suit particular process conditions.
The machine uses a free abrasive slurr y, which is supplied from a separate freestanding reservoir, equipped with a pump and driven blade stirrer. Outlets are provided to feel each conditioning ring via a track wire, with individual control valves. A diamond slurr y dispensing system can also be fitted if required.
As with all ring lapping machines flatness of the lap plate can be altered by wear conditioning, that is the lateral position of the conditioning rings relative to the lap plate track can be adjusted to preferentially wear the plate's surface. For example, if the lap plate is concave then the conditioning rings are moved outboard, so that the area around the outer edge of the lap plate is worn down faster the the area near the centre, gradually improving the flatness of the plate.
As this machine has no worktable, the roller yokes can be adjusted vertically as well as laterally, so that the normal wearing of the plate during prolonged usage can be accommodated.
This machine is also available in Pneumatic Lift version, see Product Data Sheet.

Inquiry Form

* Indicates A Required Field

Precision Surfacing Solutions family of brands
Precision Surfacing Solutions Wheel BrandPSSLapmasterBarnesElbabaReformKehrenMicronPeterPrecision Surfacing SolutionsPSSLapmasterBarnesElbabaReformKehrenMicronPeterLapmaster WoltersPSSLapmasterBarnesElbabaReformKehrenMicronPeterBarnes HoningPSSLapmasterBarnesElbabaReformKehrenMicronPeterElb SchliffPSSLapmasterBarnesElbabaReformKehrenMicronPeteraba GrindingPSSLapmasterBarnesElbabaReformKehrenMicronPeterReformPSSLapmasterBarnesElbabaReformKehrenMicronPeter KehrenPSSLapmasterBarnesElbabaReformKehrenMicronPeterMicronPSSLapmasterBarnesElbabaReformKehrenMicronPeterPeter WoltersPSSLapmasterBarnesElbabaReformKehrenMicronPeter

    PRECISION SURFACING SOLUTIONS supports manufacturers in a wide variety of industries in which precision grinding, lapping, polishing, deburring and advanced materials processing equipment is commonly used. They all need high-quality, high-precision, stable and well-engineered machines to manufacture high-quality work pieces.

    Visit Site
  • Micron

    Produced in Germany since 2009, MICRON machines are compact and dynamically rigid grinding machines especially designed for Creep Feed and Profile grinding. MICRON is an industry leader in grinding of Hydraulic components like stators, rotors and van pumps.

    Visit Site

    Founded in 1934, KEHREN is a well-established designer and builder of high-precision grinding machine tools and systems under the following categories: vertical grinding centers, vertical grinding centers with portal design, surface grinders with rotary tables and horizontal spindles, and surface grinders with dual rotary tables and vertical spindles.

    Visit Site

    REFORM Grinding Technology GmbH is specialized in the sales, development & production of grinding machines for various applications at its location in Fulda (Germany).

    Visit Site
  • aba Grinding

    The aba company was founded in 1898 under the name "Messwerkzeugfabrik Alig & Baumgärtel Aschaffenburg", hence the initials aba. Today, the aba Grinding Technologies is exclusively focused on the advancement and production of precision surface and profile grinding machines.

    Visit Site
  • ELB-Schliff

    ELB-Schliff Werkzeugmaschinen GmbH has been producing surface and profile grinding machines for over 60 years. The company was founded by Edmund Lang in the city of Babenhausen which led to the name "ELB-Schliff".

    Visit Site
  • Barnes Honing

    Since 1907 Barnes has been considered a world leader in developing innovative honing and bore finishing technology and processes. The earliest Barnes honing machines were the first to make honing a practical and efficient means of finishing automotive cylinder bores in a production environment.

    Visit Site
  • Lapmaster Wolters

    Founded in Chicago in 1948 as a manufacture of lapping and polishing machines for the mechanical seal market, Lapmaster has grown to a worldwide solution provider for more than 20 industries like precision optics and advanced materials.

    Visit Site
  • Peter Wolters

    Founded in Germany in 1804 by Mr. Peter Wolters, Peter Wolters has been producing lapping, polishing and fine grinding equipment since 1936. In 2019 Precision Surfacing Solutions acquired the division Wafer plant and service business for photovoltaic and special materials of Meyer Burger. Further Information can be found at

    Visit Site