Atlas Copco Spare Parts
Compatible rock drill components for Atlas Copco — 118 parts listed
Screw
Part 3147 1479 03 is a screw used to secure a structural joint on Atlas Copco equipment, and while a fastener rarely draws attention the way a pump or bearing does, its material grade and torque rating are chosen specifically for the load path it closes. A generic hardware equivalent can look identical while lacking the fatigue resistance the original part carries. Because fasteners are cheap and quick to fit relative to almost everything else in an overhaul, they get treated as an afterthought, which is exactly where the risk lies: a screw that backs out or shears can let a structural joint shift under load, turning a low-cost item into a much larger repair. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and construction contractors.
Screw
Part 3115 0782 10 is a screw used inside an Atlas Copco rock drill, where it sees vibration from the percussion cycle on top of the static clamping load a fastener normally carries. That combination is what makes the original locking feature and thread coating matter more here than on a static joint, since vibration is what actually works a fastener loose over time. A drill that has been through repeated strip-downs is a common place to find a fastener reused past the point its locking feature still functions, which is worth checking during any overhaul rather than assuming it is fine because it still tightens down. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Roller Bearing
The roller bearing, part 0509 0223 00, supports a heavier combination of radial and thrust load than a needle or ball bearing of the same size could take, which is why it tends to sit at the more heavily loaded points in a drill's drive train. Because it is built for that higher load, its failure mode is more sudden than gradual: a roller bearing tends to run acceptably until it doesn't, giving less advance warning than a lightly loaded bearing elsewhere in the same machine. That narrower warning window is why roller bearings in this kind of position are usually replaced on a fixed interval rather than run to observed failure. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Roller Bearing
The roller bearing, part 0509 0221 00, sits at a shaft support point in Atlas Copco equipment and is sized to a specific bore and shaft fit, so a bearing that spins in its housing or on its shaft loses its rated capacity even while it still turns freely by hand. That kind of fit failure is easy to miss on a bench check, since the bearing itself can look completely serviceable. Contamination ingress is usually what actually ends a roller bearing's life rather than pure fatigue, since even hard, clean rolling contact tolerates far more cycles than most operating environments allow, which is why seal condition around the bearing matters as much as the bearing itself. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and construction contractors.
Ring
The ring, part 3125 4974 00, seats against a machined shoulder inside an Atlas Copco assembly to retain or locate an adjacent component, carrying almost no load itself under normal operation. Because it does so little work in service, a deformed or undersized ring is easy to overlook during a quick inspection, yet it is exactly the kind of small tolerance error that shows up later as play somewhere else in the assembly. A ring reused from a previous rebuild, even one that looks undamaged, can have taken a permanent set from the removal process that leaves it no longer seating fully square. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and construction contractors.
Pulley Wheel
The pulley wheel, part 3222 3094 37, is the larger of the pulley pair in its drive arrangement, setting the reduction ratio for the belt drive it carries and taking a correspondingly higher belt tension load than a smaller pulley in the same system. A wheel with a worn groove on this side of the drive throws off tension across the whole belt run, not just at the point of contact. Because this pulley carries more of the drive's total load, bearing wear at its hub tends to progress faster than on the smaller pulley it pairs with, so the two are worth checking together rather than assuming even wear across the drive. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and construction contractors.
Profile
The profile, part 3128 0893 00, is a formed structural section that provides a mounting edge or guide track within an Atlas Copco assembly, and its exact cross-section is what other components register against. Even minor deformation along its length changes how anything sliding or mounted along it sits, in ways that are easier to feel as roughness in operation than to see by eye. Because the profile is a passive structural piece rather than a wear part in normal operation, damage to it usually comes from an impact or overload event elsewhere, which makes it worth checking whenever a component running against it has failed unexpectedly. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and construction contractors.
Plate
The plate, part 3128 0485 00, forms a mounting or wear-facing surface within an Atlas Copco assembly, and its flatness against the surface it seats or slides against matters more to how it performs than its thickness alone. A plate that has warped, even slightly, from heat or an uneven bolt-down leaves a gap that concentrates load at the high points instead of spreading it evenly. Because that kind of distortion is often invisible without a straightedge, a plate that has been through a previous overload event is worth checking for flatness even when it shows no obvious damage. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and construction contractors.
Piston Guide
The piston guide, part 3115 1680 00, keeps the percussion piston centered in its bore on the return stroke of an Atlas Copco rock drill, taking the side loading that the piston itself is not designed to carry. It is deliberately the softer of the two mating surfaces, so it wears in place of the piston or the cylinder bore, both of which are far more expensive to replace. A worn piston guide lets the piston contact the bore wall directly on part of its stroke, and once that starts happening the bore itself begins to score, which turns a simple guide replacement into a full cylinder rebuild if it runs too long. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Piston Guide
The piston guide, part 3115 2124 00, centers the percussion piston at the forward end of its stroke in an Atlas Copco rock drill, absorbing the side loading generated as the piston approaches impact with the shank. Because this location sees the piston at its highest velocity, wear here tends to develop faster than at a guide positioned earlier in the stroke. A worn front guide lets the piston strike slightly off-axis, and that misalignment at the point of impact is what typically shows up first as accelerated wear on the shank and chuck rather than as an obvious fault in the guide itself. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Pipe
The pipe, part 3128 0486 00, carries fluid or air between two points in an Atlas Copco assembly under pressure that cycles with every operating stroke rather than staying constant, so fatigue at its end fittings is usually the limiting factor rather than wear along its length. A pipe that has been bent slightly out of its original routing during a previous repair carries a stress concentration at that bend that shortens its remaining life even if it still holds pressure fine. A developing leak at a fitting is often heard or smelled before it is seen, particularly on a line that runs somewhere out of direct sight, which is why fittings are worth checking on a schedule rather than waiting for a visible sign. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and construction contractors.
Pulley Wheel
The pulley wheel, part 3128 0785 34, is the smaller of the pulley pair in its drive arrangement, running at higher rotational speed than its larger counterpart for the same belt speed, which means its bearing sees more revolutions per hour of operation. That higher cycle count is why the small pulley in a drive pair often reaches its service limit before the large one does, even though both carry the same belt tension. A groove worn out of profile on this pulley lets the belt ride slightly off-center, and that small misalignment shows up as accelerated wear on the belt edge long before the pulley itself looks obviously worn. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and construction contractors.