The M28 pre-engaged hydraulic starter motor provides guaranteed reliability, no matter how challenging or unpredictable the environment. Our M28 and M22 hydraulic starter motors are unique in being ATEX-approved for use in gas and mining environments. Compliance with ATEX means they are safe for use in explosive and potentially explosive applications.
ATEX regulations strongly discourage the use of aluminium in mining and other explosive environments. This is because aluminium is a key ingredient in a thermite reaction. Such a reaction in an explosive environment would be catastrophic! Our starter motors remove this risk by using a cast iron outer casing.
Unfortunately, many aluminium-cased starters are still sold into mining environments despite the ATEX recommendations. This falls short of the standards promoted by the ATEX regulations and is inherently dangerous.
Traditional ‘inertia’ starting has the possibility of producing sparks when the rapidly spinning pinion engages with the engine’s stationary ring-gear. ATEX regulations require starter motors to be ‘pre-engaged’. Our pre-engaged M28 starter motor fully engages the pinion with the ring-gear before rotating at high speed.
The M28 pre-engaged hydraulic starter is also available with a beryllium-copper pinion to further reduce the risk of sparks. This is an optional extra safety precaution over and above the protection offered by the pre-engaged system.
Our starting systems can be class approved to numerous marine certification standards. This is done on a case by case basis according to specific customer specifications.
The orientation of the M28 can be rotated to suit almost any engine configuration. This is achieved by rotating the flange of the standard model. If the configuration is particularly difficult we can provide a custom flange to suit.
The M28 pre-engaged hydraulic starter motor is a low maintenance solution that’s reliable in all conditions, including sub-zero and high temperature environments. It requires virtually no attention other than replacing the filter element and periodically checking the gas pre-charge and system pressure.
Parts such as spacers, flanges and pinions used on the M28 are also common to our air starter range. This helps remote and offshore sites simplify stock-holding and improve interchangeability.
|Weight (typical)||12 kg|
|Maximum working pressure||21 MPa (3000 PSI)|
|Fluid media||Mineral oil|
|Viscosity range||ISO 32 to 46 (SUS 140-230)|
|Temperature range||-30°C to +100°C (-22°F to +212°F)|
|Speed range||0-4000 rpm|
|Rotation||Standard: Clockwise (Optional: Counter-Clockwise)|
|Overall volumetric efficiency||92% (Minimum)|
|Displacement||28 cc (1.71 cu.in.)|
|Maximum torque at 210 Mpa (1500 psi)||84 Nm (62 lbf.ft.)|
|Maximum power at 3500 rpm||31 kW (41 HP)|