Sandvik-Tamrock 55054245 Hydraulic Motor Assembly (550 542 45) — OEM Replacement for Sandvik Drilling Equipment

The Sandvik-Tamrock 55054245 Hydraulic Motor Assembly — also identified by the formatted part numbers 550 542 45 or 550-542-45 — is a robust, OEM-specification hydraulic motor assembly engineered for use across the Sandvik and Tamrock range of surface and underground drilling equipment. This component is installed in the dust collector system, where it drives the rotary mechanism to maintain efficient dust extraction and airflow control throughout drilling operations.

As a critical subsystem in Sandvik-Tamrock drilling rigs, the dust collector’s hydraulic motor runs in parallel with drilling activity — operating continuously under hydraulic load in environments filled with fine rock dust, vibration, and fluctuating ambient temperatures. A failed or degraded motor directly compromises dust suppression performance, exposing operators to hazardous airborne particles and risking regulatory non-compliance on site. Using an OEM-matched replacement like the Sandvik-Tamrock 55054245 ensures the dust collector returns to full operational capacity immediately upon installation, with no compromise in flow characteristics, torque output, or seal integrity.

The 55054245 also appears in Tamrock spare parts inventories under the variant designation 55054245b, reflecting minor production revisions within the same assembly family — all of which are interchangeable within the same equipment fitment positions.

Key Features

• OEM Part Number: 55054245 — also searchable as 550 542 45, 550-542-45, and 55054245b
• Verified Application: Installed in the Sandvik DC800H dust collector system to drive the rotary dust extraction mechanism
• High-Cycle Continuous-Duty Performance: Engineered to operate reliably through extended drilling shifts under sustained hydraulic load and abrasive dust exposure
• Precise Torque & Flow Characteristics: Matched to the original OEM specification to ensure correct rotational speed and extraction performance in the dust collector circuit
• Dust & Vibration Resistant: Built to perform in the harsh operating conditions typical of surface top hammer and underground drilling environments
• Direct Drop-In Replacement: Designed to install directly into the existing hydraulic circuit without system modifications or additional adaptors
• Cross-Variant Coverage: Covers both 55054245 and 55054245b production variants — same fitment, same performance
• Broad Equipment Compatibility: Used across the Sandvik-Tamrock 550-series equipment platform, including Tamrock Ranger series drill rigs equipped with the DC800H dust collector

Specifications

Why Hydraulic Motor Quality Matters in Dust Collection Systems

The dust collector is not an optional accessory — it is a health and safety critical system on every modern drilling rig. In surface top hammer drilling with the Tamrock Ranger series, the DC800H dust collector uses a hydraulically driven rotary mechanism to maintain continuous negative pressure and airflow through the collector housing. If the hydraulic motor underperforms — due to worn seals, incorrect displacement, or substandard build quality — the entire dust suppression system loses efficiency. The result is visible dust breakthrough at the collar, increased maintenance intervals on filters and downstream components, and potential regulatory exposure for the site operator. Fitting the correct OEM-specification Sandvik-Tamrock 55054245 Hydraulic Motor Assembly eliminates all of these risks at source.

Order the Sandvik-Tamrock 55054245 Hydraulic Motor Assembly today and restore full dust collector performance to your Sandvik or Tamrock drilling rig.