Catalog: Stalroc Industrial
Browse heavy-duty drilling components engineered for extreme environments.
Tools Kit
The tools kit, part 550 387 95, groups the fixtures and drivers needed for a specific service procedure into one reference, avoiding the trial and error of assembling an equivalent set from general workshop stock. A procedure done without the correct tooling tends to take longer and carries a higher risk of marking a precision surface that the kit's tools are shaped to avoid contacting. Because the kit is specified against the exact procedure it supports, it is generally ordered alongside the parts it services rather than substituted with tools already on the shelf. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Piston
The piston, part 550 348 12, transmits the percussive impact that drives the drill string, cycling at high frequency under repeated shock loading rather than the smooth reciprocation of a typical hydraulic cylinder piston. Because the impact happens at both ends of its stroke, wear on a percussion piston concentrates at the striking faces first, well before the seal lands elsewhere on the piston show any degradation. A piston worn at its striking face transmits impact less efficiently even while otherwise appearing serviceable, which shows up as reduced penetration rate before it shows up as a measurable dimensional fault. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Rear Bushing
The rear bushing, part 151 655 08, supports the back end of its shaft where alignment matters as much as radial load capacity, since a shaft supported off-centre at the rear transmits that misalignment forward through its full length. Wear here is harder to catch on a visual check than wear at the front bushing, because the rear position is less accessible and less frequently inspected during routine service. Because rear bushing wear affects shaft alignment rather than just clearance, a shaft or seal replaced up front without checking the rear bushing can fail again from the same root cause. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Housing
The housing, part 550 063 73, encloses and locates the internal components of its assembly, machined to the tolerances that the bearings, bushings, or seals fitted inside it depend on. A housing bore that has worn oversize or lost roundness will keep failing new internal components fitted into it, because the fault sits in the housing rather than in whatever is replaced inside it. Because the housing sets the reference dimension for everything mounted inside it, repeated early failures of an internal part are worth checking against housing wear before another replacement is fitted. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Bushing
The bushing, part 152 760 18, sets the running clearance between a shaft and its bore, and that clearance is what determines how much backlash the assembly develops as the bushing wears. Because clearance grows gradually rather than failing suddenly, a bushing nearing its wear limit lets the assembly run with slightly more play on each cycle without any single event marking the point of failure. Measuring bushing clearance against the manufacturer tolerance is more reliable than judging it by feel, since the play that finally becomes noticeable by hand has usually been building for some time already. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Bushing
The bushing, part 550 521 62, is one of several wear points supporting a shared drive shaft, and because more than one bushing supports the same shaft, uneven wear between them loads the shaft unevenly rather than symmetrically. Replacing only the bushing that appears most worn while leaving the others in service can leave the shaft running at a slight angle across the remaining span. Because the bushings share the same shaft, they are generally inspected and replaced as a set rather than one at a time based on which looks worst. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Chuck
The chuck, part BG003 004 81, grips the shank adapter and carries both the rotational torque and the percussive impact into the drill string, combining two very different loading modes at the same contact surfaces. Because it transmits shock as well as torque, wear inside the chuck first shows up as reduced grip under impact rather than as slip under steady rotation, which a check made only under rotation can miss. A chuck that has lost grip under impact lets the shank move slightly on every blow, and that repeated micro-movement accelerates wear on the shank adapter it holds. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Rotation Gear
The rotation gear, part 550 348 41, transmits drive torque through its meshing teeth to turn the rotation unit, and its tooth profile is machined to a tolerance that determines how smoothly load transfers from one tooth to the next. A gear with worn or chipped teeth transmits torque unevenly across a revolution, which loads the teeth still in good condition harder than the design intended and accelerates their wear too. Because tooth wear on one gear accelerates wear on its meshing partner, a rotation gear is checked and typically replaced alongside the gear it drives rather than in isolation. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Coupling Driver
The coupling driver, part 550 347 96, transmits rotational drive across a joint designed to accommodate slight misalignment between the two shafts it connects, rather than requiring them to be perfectly coaxial. Because it is the component built to absorb that misalignment, it wears faster than either shaft it connects, and its wear is a normal part of accommodating alignment tolerances that would otherwise stress the shafts directly. A coupling driver run past its wear limit stops absorbing that misalignment and starts transmitting it directly into the shafts on either side, which is a more expensive failure than replacing the coupling driver itself on schedule. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Power Ex Seal Kit
The power ex seal kit, part 888 182 29, bundles the seals needed for a full rebuild of the power extension assembly, matched to each other in compound and hardness rather than sourced individually against separate references. Because the power extension cycles under high hydraulic pressure, seals inside it wear together as a group, and replacing only the ones that show visible damage leaves others already past their reliable service life still in place. Buying the kit as a single reference also avoids the risk of a mismatched seal compound reacting differently to the same hydraulic fluid and temperature, which individually sourced seals are not guaranteed to share. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Tools Kit
The tools kit, part 093 333 78, bundles the specific tooling needed to service its assembly correctly, sized and shaped to fit clearances that generic workshop tools were not designed around. Using improvised tooling on a task the kit was built for often gets the job done but leaves marks or slight deformation on components that were meant to come apart and go back together cleanly. Because the kit's tools are matched to the assembly's actual dimensions, keeping one on hand avoids reaching for a generic substitute mid-job and having to work around its limitations. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.
Stabilizer Kit
The stabilizer kit, part BG006 465 93, bundles the components that hold a Sandvik rig's boom or feed steady against the reaction forces of drilling, packaged as a matched set rather than sourced piece by piece. Because the parts inside share wear characteristics under the same load path, replacing them together keeps the stabilizing assembly working as a unit instead of mixing worn and new components that settle differently. A rig that has developed play in its stabilizers loses positioning accuracy before the operator notices any single part has failed, which is why the kit is specified as a complete reference rather than left to selective replacement. Stalroc quotes this Sandvik reference by part number and exports worldwide to mining, quarrying, and drilling contractors.