Catalog: Stalroc Industrial
Browse heavy-duty drilling components engineered for extreme environments.
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.
Plate Gasket
The plate gasket, part 152 748 18, seals a flat mating joint between two machined faces in Sandvik equipment, relying on being compressed evenly across its full area to hold a seal. Uneven bolt torque across the joint leaves part of the gasket under-compressed, and that's usually where a slow leak starts even though the gasket itself looks fine everywhere else. A gasket reused after a previous strip-down has already taken a compression set at the old bolt pattern, so it rarely seals as well the second time even if it shows no visible damage. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and construction contractors.
Plate
The plate, part 325 124 98, forms a mounting or wear-facing surface within Sandvik equipment, 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 Sandvik reference by part number and exports worldwide to mining, quarrying, and construction contractors.
Piston
The piston, part 153 600 48, converts hydraulic or pneumatic pressure into the reciprocating force that drives a Sandvik cylinder, running against a bore surface that its own seal groove and outer diameter are matched to precisely. A piston with a scored or undersized outer surface lets pressure bypass past the seal instead of doing useful work, which shows up as slow or weak operation rather than an obvious fault. Because the piston runs inside the cylinder bore rather than against it directly, wear on one is often driven by contamination that first damaged the other, so the bore is worth checking whenever the piston is replaced. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Pin
The pin, part 235 056 68, forms a pivot or retaining point in a Sandvik assembly, carrying shear load at the point where two components meet rather than the tensile load a bolt would carry in the same position. A pin that has developed play in its bore lets the joint it locates move slightly on every cycle, and that small motion is what accelerates wear on the surrounding bore far faster than on the pin itself. Because pin wear often shows up first as elongation of the bore rather than damage to the pin, replacing a worn pin into an already-worn bore rarely restores the original fit. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and construction contractors.
Pin
The pin, part 323 056 28, locates and retains a component in a Sandvik assembly at a joint that sees direct shock loading rather than smooth cyclic motion, which is why its hardness through the cross-section matters as much as its diameter. A pin that has been case-hardened only at the surface can look undamaged while its softer core has already started to deform under repeated impact. A pin that is difficult to remove during a strip-down has often already begun to gall against its bore, and forcing it out without addressing that can enlarge the bore further rather than restoring a clean fit for the replacement. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and construction contractors.
Nut
The nut, part 289 221 28, secures a threaded joint in Sandvik equipment, and its thread class and material grade are matched to the bolt it pairs with so the two share load the way the joint was designed for. A mismatched or lower-grade substitute can thread on and tighten normally while still under-delivering the clamping force the joint actually needs. A nut that has been run down a damaged or corroded thread rarely seats with full clamping force even when it feels tight by hand, which is one of the more common reasons a joint that was "torqued correctly" still works loose in service. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and construction contractors.
Jaw Plate
The jaw plate, part 138 231 68, is the bolted-on wear surface fitted to a Sandvik jaw body, designed to be replaced on its own once its profile wears smooth without having to replace the structural jaw behind it. A jaw plate run past its usable thickness stops biting into the feed properly and starts letting material slip through uncrushed, which reduces crushing efficiency well before the plate looks obviously thin. Because the plate is bolted rather than integral to the jaw body, uneven tightening across its mounting bolts can let it shift slightly under load, which accelerates wear at the loose edge disproportionately to the rest of the plate. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and crushing contractors.
Jaw
The jaw, part 623 924 18, is a one-piece crushing surface in a Sandvik jaw crusher, integral rather than a separate bolted plate, so its entire body is the wear allowance rather than just a replaceable facing. That makes total service life longer between changeouts, but it also means the whole jaw comes out for replacement rather than just a wear plate. Feed material hardness and gradation drive the wear rate more than running hours do, and jaws are matched in pairs, so running one badly worn jaw against a fresher opposing plate skews the crushing angle and concentrates wear unevenly on both. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and crushing contractors.