ACCUMULATOR

The ACCUMULATOR 8440 3009 73 (8440300973, 8440-3009-73, ACCUMULATOR 8440300973) is a high-pressure hydraulic accumulator block engineered for ATLAS COPCO and EPIROC drilling rigs. Designed for mining and tunneling duty, the ACCUMULATOR 8440 3009 73 stores and releases hydraulic energy to stabilize system pressure under rapidly changing drilling loads.

This ACCUMULATOR 8440 3009 73 absorbs and moderates hydraulic shock loads generated by feed cylinders, rotation drives, and impact systems. By damping pressure spikes, 8440300973 protects pumps, seals, hoses, and valve assemblies from cavitation, vibration, over-pressurization, and machine-oil aeration. The identifiers 8440300973 and 8440-3009-73 are commonly used catalog variations for the same assembly.

The ACCUMULATOR 8440 3009 73 maintains consistent hydraulic delivery to rotation, percussion, and feed systems, improving drilling accuracy, penetration rate, and equipment smoothness. Stable accumulator response minimizes system fatigue and contributes to longer component life in harsh mining environments.

Inspect the ACCUMULATOR 8440 3009 73 for nitrogen loss, shell fatigue, leakage, or diminished damping performance. Replace 8440300973 immediately if pulsation increases or accumulator response becomes delayed. Follow OEM nitrogen precharge specifications and hydraulic bleeding procedures for correct installation.

Also indicated as 8440300973, 8440-3009-73, and ACCUMULATOR 8440300973, this hydraulic accumulator block is widely chosen for OEM-standard performance and good-price replacement options for ATLAS COPCO and EPIROC machinery.