Diaphragm HP

The Diaphragm HP (OEM 91-0903-03) is a high-quality alternative spare part built for rock drills and drifter rigs working under the toughest mining and tunnelling conditions. It is a precision internal component of the percussion or valve mechanism, governing the controlled movement and energy transfer that drive drilling performance.

Manufactured from hardened, precision-ground alloy steel, it withstands high cyclic impact and pressure loads while maintaining tight clearances and accurate operation. As an alternative spare part, it offers full functional interchangeability at a competitive cost, without compromising performance or reliability.

Delkom manufactures and exports premium alternative rock drilling, drifter equipment and spare parts to more than 100 countries. Contact us for current availability, bulk pricing and technical support.