ARM

The ARM 3128 0012 37 (3128001237, 3128-0012-37, ARM 3128001237) is a mining-grade structural arm engineered for ATLAS COPCO and EPIROC drilling rigs, ROC series machinery, and underground jumbos. The ARM 3128 0012 37 supports mechanical linkages, hydraulic drives, and feed assemblies exposed to extreme vibration, drilling shock, and heavy-load operating conditions.

This ARM 3128 0012 37 is manufactured from reinforced, high-strength steel with precision-machined interfaces to ensure stable mounting, accurate alignment, and long-term durability. Catalog identifiers 3128001237 and 3128-0012-37 are widely referenced in OEM and aftermarket spare parts listings.

The ARM 3128 0012 37 provides critical structural support and alignment within drilling assemblies, linking moving components such as boom joints, feed mechanisms, stabilizers, and actuators. Proper arm rigidity improves drilling accuracy, minimizes mechanical wear, and maintains correct geometry under harsh mining and tunneling loads.

Inspect the ARM 3128 0012 37 for cracking, deformation, weld fatigue, surface wear, or worn pivot interfaces. Replace immediately if any structural weakness is detected.

Also indicated as 3128001237, 3128-0012-37, and ARM 3128001237, this structural arm is essential for maintaining stable mechanical geometry in heavy-duty drilling operations.