Catalog: Stalroc Industrial
Browse heavy-duty drilling components engineered for extreme environments.
Temperature Sensor
The temperature sensor, part 9106 1856 02, feeds the control system the reading it uses to protect the rig from running hot, so its own accuracy is what the protection strategy actually depends on rather than the alarm threshold set in software. A sensor drifting out of calibration reports a plausible but wrong temperature, which either triggers unnecessary shutdowns or, more seriously, fails to trigger a real one. Because a drifting sensor still returns a reading rather than an obvious fault code, it is one of the harder components to catch without a periodic calibration check against a known reference. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Bushing
The bushing, part 3115 1881 00, is fitted where a shaft passes through a structural housing rather than at a wear point along the piston's stroke, so its duty is closer to steady rotating support than to absorbing repeated impact. That steadier duty means it wears more slowly than the bushings nearer the percussion end of the drill, which is exactly why it is easy to overlook during a rebuild focused on the faster-wearing components. A drill rebuilt around its percussion-end wear items while this kind of bushing is left unchecked can still return to service with play at a point nobody inspected. 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 5050 01, is fitted to a specific bore diameter and its clearance to the piston is set tight enough that a fraction of a millimetre of extra wear changes how squarely the piston strikes. Because that clearance is so fine, checking a guide by eye or by feel rarely catches wear early enough; it is the kind of component that is more reliably measured than inspected. A guide measured out of tolerance is worth renewing on its own even where the piston it guides still passes inspection, since running a fresh piston against a worn guide simply transfers the guide's wear onto the new piston. 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 3094 00, is one of two or more guides spaced along a drifter's stroke, and because they act together, wear at one point does not always show up as a symptom until a second guide has also opened clearance. A single worn guide can be partly compensated by a sound one nearby, which is why penetration and vibration symptoms sometimes appear only after the second guide in the pair has passed its limit. For that reason, guides at this kind of position are usually inspected and renewed as a matched pair rather than singly, even when only one measures out of tolerance. 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 2126 00, sits closest to the point where the piston strikes the shank, which puts it under the sharpest reversal of load in the whole guide train as the piston stops and redirects on every cycle. Guides in this position typically wear faster than the ones further back along the stroke, so it is often the first of a drifter's guides to reach its limit even when the others still measure sound. Because it is the first to wear, checking this guide specifically at each overhaul, rather than assuming the guide train wears evenly, catches the earliest sign that the front end needs attention. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Stop Ring
The stop ring, part 3115 2117 80, sets a hard limit on how far a component can travel before it is arrested rather than allowed to run into whatever sits beyond it, absorbing that arrest on every cycle it is reached. Unlike a ring that only occasionally sees its limit, one fitted at a point the mechanism reaches routinely takes that impact continuously, which is why its wear rate depends heavily on exactly where in the machine it sits. A stop ring found flattened or cracked is worth treating as a sign to check what lies just beyond it too, since a ring that has failed has usually let something travel further than it should have at least once already. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Big Liner
The liner, part 3115 5358 04, is the larger-bore version fitted to a bigger-frame drifter than a standard liner covers, and its size means both the material volume and the cost of the housing behind it are greater, which raises the stakes on catching wear before the liner is run through. Because a larger liner also represents a larger single order, sites running this frame size tend to keep one in stock rather than order reactively once a rebuild has already started. Fitting a standard-size liner in place of this one, even where a catalogue lists them as related parts, leaves the housing under-supported at the diameter that matters. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, tunnelling and quarrying operations.
Washer
The washer, part 3115 0823 00, spreads clamping load across a joint face on an Atlas Copco drifter, and because that joint sits somewhere the machine vibrates continuously, the washer is doing more work than an equivalent washer would in a static assembly. A washer reused through several strip-downs develops a compression set that reduces how much bearing area it actually presents to the joint, even though its outer dimensions look unchanged. Renewing washers with the fasteners they sit under, rather than treating them as a reusable spacer, keeps the joint clamping the way it was designed to. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Shaft
The shaft, part 3115 0821 00, carries torque through a drifter's drive train under continuous load, with the shock of percussion superimposed on top of steady rotation. A shaft running slightly out of true rarely announces itself directly; instead it wears the bearings and bushings it passes through, so the shaft is often the last thing checked rather than the first even though it is frequently the underlying cause. Inspecting it during a scheduled overhaul, rather than after a bearing failure has already pointed at it, is the more reliable way to catch a shaft before it takes its neighbours with it. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Rotation Chuck
The rotation chuck, part 3115 2649 00, grips the shank adapter and transmits both rotation and percussion into it, which means any wear in its grip shows up as lost energy in two different directions at once rather than just one. A chuck that has opened up slightly still turns the shank, so rotational function alone is not a reliable test of its condition; the grip on percussion transfer degrades first and is harder to notice from the cab. Because the chuck sits directly in that dual load path, its wear accelerates whatever it grips, which is why it is usually assessed alongside the shank whenever either is due for inspection. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Rotation Chuck
The rotation chuck, part 3115 5313 80, is sized to a specific shank profile, and the fit between the two is what actually transmits torque rather than the chuck's outer dimensions, which is why a chuck that looks correct for a machine can still be wrong for the shank it is meant to grip. Fitting a mismatched chuck-and-shank pairing wears both faster than either would wear against its correct match, since the load concentrates on the few points of contact that do line up rather than spreading evenly. Confirming both references against the machine's parts manual before ordering either one avoids that kind of mismatch, which is easy to make when chucks from adjacent drifter generations look interchangeable. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Driver
The driver, part 3115 2650 00, transmits rotation through a splined connection inside a drifter's drive train, and spline wear here tends to run unevenly across the tooth profile rather than uniformly, since only part of each tooth carries load under any given direction of rotation. Measuring backlash at a single point can therefore miss wear concentrated elsewhere on the same spline, which is why a driver suspected of wear is better checked across its full tooth profile than at one spot. Because backlash converts to hammering the instant the machine reverses direction, a driver worn on one face of its splines often fails sooner than its measured backlash alone would suggest. Stalroc quotes this Atlas Copco reference by part number and exports worldwide to mining, quarrying, and drilling contractors.