Sandvik Spare Parts
Compatible rock drill components for Sandvik — 154 parts listed
Cylinder Rear
The rear cylinder, part 153 602 08, closes the back end of the stroke in a Sandvik rock drill and interfaces directly with the back head, so it carries both the piston's return-stroke impact and the porting that feeds the percussion circuit at that end. Wear here tends to concentrate at the point where the piston reverses direction, which is a narrower band of the bore than the piston's full travel covers. Because that wear band is localised rather than spread along the bore, a rear cylinder can need renewal well before a straightedge check anywhere else in the assembly would suggest it. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Rear Cylinder
The rear cylinder, part 097 055 08, carries the return-line porting that feeds fluid back through a Sandvik rock drill's percussion circuit, and that porting is specific enough to the drill generation it was designed for that a rear cylinder from an earlier or later model rarely lines up correctly even when the outside dimensions look close. Fitting a mismatched reference here tends to show up as an internal leak path rather than as a part that visibly does not fit. Confirming the reference against the machine's own parts manual before ordering is the reliable way to avoid that mismatch, particularly on a rig that has had components mixed across a model change. Stalroc supplies this Sandvik part against its manufacturer number and exports worldwide to mining, tunnelling and quarrying operations.
Rotation Bushing
The rotation bushing, part 550 253 61, carries the torque of the rotation drive inside a Sandvik rock drill, and as it wears the drive train it supports starts to develop backlash before the wear is measurable any other way. That backlash is usually heard rather than seen: a knock or chatter on rotation reversal that gets dismissed as normal machine noise until it is compared against a drill running a fresh bushing. Catching it at the chatter stage, rather than waiting for it to affect penetration rate, is what keeps the repair to a bushing rather than the components it drives. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Seal Kit
The seal kit, part 551 732 85, bundles the seals for one Sandvik rock drill assembly matched to that assembly's bore sizes and fluid duty, which matters because seals of the same apparent dimensions are not always cut from the same compound or durometer. Mixing seals sourced individually rather than as this kit risks a set that fits on the bench but wears unevenly once it is back under pressure. Buying the kit also means the less obvious items, the small back-up rings and wipers that are easy to leave off an individual order, arrive with the rest rather than being discovered missing mid-rebuild. Stalroc supplies this Sandvik reference against its part number and exports worldwide to drilling contractors.
Bearing
The bearing, part 552 250 91, runs under the combined vibration and shock loading a Sandvik rock drill puts through its rotating components, and a bearing failing under that duty usually gives a warning before it seizes: rising noise or a patch of heat felt through the housing during a routine check. Both are worth treating as an early warning rather than something to monitor, since a rock drill bearing under this kind of loading offers little margin between the first symptom and outright failure. Renewing on that early symptom, rather than waiting for it to worsen, is what keeps the repair to the bearing itself rather than the shaft and housing it runs in. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, tunnelling and quarrying operations.
Repair Kit
The repair kit, part BG005 501 96, groups the seals and wear parts needed for one full service of its assembly, matched to each other in compound and tolerance rather than assembled from parts sourced against separate references. Fitting the kit as a set avoids the mismatch that comes from replacing only the components that look worn while leaving others at a different point in their service life. A partial rebuild from mixed sources tends to fail again sooner than a full kit replacement, because the components that were left in place age at a different rate than the new ones around them. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Bushing
The bushing, part 550 350 52, sits between two moving assemblies inside a Sandvik rock drill and is sized to a close working clearance with the shaft it supports, close enough that a slightly undersized replacement binds and a slightly oversized one introduces play immediately. That tight tolerance is why a visually similar bushing from a different position in the same drill is rarely a safe substitute. Measuring the clearance against the shaft it fits, rather than assuming a like-for-like swap, is the reliable way to confirm the reference before a rebuild goes back together. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Bushing
The bushing, part 550 063 74, carries the rotating shaft inside the rotation unit of a Sandvik rock drill, taking the sliding wear onto a replaceable sleeve instead of onto the housing bore it sits in. That is the entire economics of the part: it is designed to be the cheaper, faster item to renew, and the arrangement only pays off if it is changed before its clearance opens up. Once a bushing like this is run past its limit, the load it was absorbing transfers into the housing itself, which is a considerably more expensive and slower repair. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Driver
The driver, part 550 347 86, carries rotational drive between the rotation motor and the chuck inside a Sandvik rock drill, sitting in a chain where every joint's backlash adds to the next one's. A driver with worn splines does not slip outright; it hammers on every direction change instead, and that hammering is what damages the mating components around it rather than the driver in isolation. Because it works as part of a chain rather than alone, it is usually renewed alongside the components it drives during a rotation unit overhaul rather than replaced by itself. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Bushing
The bushing, part 550 350 50, locates the piston centrally in the cylinder bore of a Sandvik hydraulic rock drill, and its job is concentricity rather than load-bearing in the way a rotation bushing works. Once it wears unevenly, the piston starts striking slightly off-axis, and the resulting side load shows up as accelerated wear on the piston and bore rather than on the bushing that actually caused it. Because the fault presents as bore or piston wear, this bushing is easy to overlook during diagnosis unless it is checked directly. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Bushing
The bushing, part 550 358 24, is fitted with an interference press rather than a running clearance, so it is the fitting process itself, not just the part, that determines how well it performs once installed. A bushing pressed in without the correct tooling can distort slightly during fitment, leaving a bore that reads within tolerance on one axis but not on another. Because that kind of fitment distortion does not show up on a simple diameter check, using the specified pressing tool and sequence matters as much as sourcing the correct bushing itself. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Assembly Kit
The assembly kit, part 550 065 21, bundles the seals, bushings and retaining rings needed for one stage of a Sandvik rock drill rebuild into a single reference, so a workshop does not have to cross-check a parts book line by line to find what one strip-down actually consumes. Ordering the loose items individually is where kits like this usually get missed, and it is also where a rebuild stalls waiting on the one small ring nobody thought to order. Because the components in the kit are matched to each other, fitting only part of it and reusing the rest defeats the purpose of buying it complete. Stalroc supplies this Sandvik reference against its part number and exports worldwide to drilling contractors.