LDM Liner Diameter Measuring Instrument

Complete liner measurement in fractions of time compared to traditional methods.

The LDM instrument makes for accurate measuring of cylinder liner diameters without the need for removing cylinder head or valve housing. The hand-held terminal, which comes complete with preset engine data for most of today's existing 2-stroke engines, is in constant, wireless communication with the measuring unit as the measuring unit collects up to 12 measured diameters on each level in the cylinder liner. Because of the astounding ease with which it is used and the decimation of the time taken compared to traditional methods, the LDM is in every way a replacement of the traditional internal micrometer. Upon purchase, you can order engine specific supplies or the complete delivery for versatile use on most 2-stroke engines.

  • For 2-stroke liners 500 - 980 mm bore
  • Accurate measuring of cylinder liner diameters
  • Liner diameter measured without removal of cylinder head or valve housing
  • Up to 12 measured diameters on each level in the cylinder liner
  • Preset engine data for most of today’s existing 2-stroke engines
  • Replaces the traditional internal micrometer
  • Complete liner measurement in fractions of time compared to traditional methods

Available for several engine makers, e.g: MAN B&W, MITSUBISHI, SULZER

Technical specification

Diameter measuring range 2-stroke engines 500 - 900 mm liner diameters
or 4-stroke engines (with cylinder head removed)
≥500 mm liner diameters
Height measuring range 0 - 2.5 m (optional 0 - 3.5 m)
Electric power supply Battery operated
Charging equipment included
Normal measuring time One cylinder liner (4 diameters / 10 levels) 1 hr
Weight Measuring unit: 3.6 kg
Additional equipment: 8 kg

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Request more information or a quotation for your Vessel, PowerPlant or Workshop.

The new LDM 

Liner Diameter Measuring Instrument
Accurate measuring of cylinder liner diameter without removal of cylinderhead or valve housing.
- LDM functions

DGL Service bulletin.

Important possible service instruction for delivered machines.

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