Dura-spindle is new developed exhaust valve spindle by MAN which will increase by more than 50% the Time Between Overhaul (TBO) of all the other two-stroke engines without nimonic spindles in its range.

DuraSpindle is based on a durable alloy hard facing that is toughened through a patented welding, rolling and heating process to prevent critical indentation marks causing 'blow-by' and occasional cracking on valve spindle seats as a result of the combustion process.

DuraSpindle project started by HD VALVE in 2011 and expected to finish in 2012, new information will follow on our website.