Which models does the Bucyrus Roof Bolters (LRB / RB2) cover?
The Bucyrus Roof Bolters (LRB / RB2) covers 2 models: Bucyrus LRB roof bolter, Bucyrus RB2 roof bolter. Former and renamed designations are listed in the models table on this page.
Roof bolter · 2 2013–2014 · 2 models


Select a model to jump to its component table; former and renamed designations are listed under “Historical names / renamings”.
| Model | Historical names / renamings | Period | Components |
|---|---|---|---|
| Bucyrus LRB roof bolter | Bucyrus Roof bolter LRB-15AR; Cat RB120 | 2 2013–2014 | 44 |
| Bucyrus RB2 roof bolter | Bucyrus Roof bolter RB2-52A; Bucyrus Roof bolter RB2-88A | 2 2013–2014 | 9 |
The numbers on the diagram correspond one to one with the rows below.
| No. | Component | Location | Applies to |
|---|---|---|---|
| 1 | Drill boom | Drill boom at the front of the bolter | RB120 |
| 2 | Protective canopy | Protective canopy above the operator station | RB120 |
| Component |
|---|
| RB120 four-wheel planetary drive hub (successor branch) |
| RB120 traveling hydraulic motor (successor branch) |
| RB120 parking brake (successor branch) |
| RB120 two-stage gear pump (successor branch) |
| RB120 fuel tank (successor branch) |
| RB120 return oil filter (successor branch) |
| RB120 in-box filter (successor branch) |
| RB120 double steel wire braided hydraulic hose (successor branch) |
| RB120 foot double-acting cylinder (successor branch) |
| RB120 drill arm feed double-acting cylinder (successor branch) |
| RB120 feed check valve (successor branch) |
| RB120ATRS supports double-acting cylinder (successor branch) |
| RB120ATRS hydraulic control check valve (successor branch) |
| RB120 main control valve group (successor branch) |
| RB120 inter-wheel auxiliary control (successor branch) |
| RB120 drilling station cable auxiliary control (successor branch) |
| RB120 cable reel valve handle (successor branch) |
| RB120 start button (successor branch) |
| RB120 emergency stop belt (successor branch) |
| RB120 motor starter (successor branch) |
| RB120 transformer (successor branch) |
| RB120 circuit breaker (successor branch) |
| RB120ABC dry powder fire extinguishing system (successor branch) |
| RB120H-shaped ATRS (successor branch) |
| RB120 low-profile box-type rigid frame (successor branch) |
| RB120 drill arm tool storage area (successor branch) |
| RB120 adjustable walking shed (successor branch) |
| RB120 pressure gauge (successor branch) |
| RB120 dust removal blower (successor branch) |
| RB120 dust removal drive hydraulic motor (successor branch) |
| RB120 dust removal pulley (successor branch) |
| RB120 dust removal V-belt (successor branch) |
| RB120 dust collection box (successor branch) |
| RB120 dust separator (successor branch) |
| RB120 dust collecting cyclone (successor branch) |
| RB120 dust collection filter (successor branch) |
| RB120 solid tire (successor branch) |
| RB120 formed rim (successor branch) |
| RB120 cable drum (successor branch) |
| RB120 supplied with towing cable (successor branch) |
Models with the same components are grouped together; select a group to open its component table.
| Component | Location |
|---|---|
| RB120 four-wheel planetary drive hub (successor branch) | Fairfield W1B hubs at each wheel |
| RB120 traveling hydraulic motor (successor branch) | Each round of Char-Lynn2000 series |
| RB120 parking brake (successor branch) | Two at the front, spring applied/hydraulic released |
| RB120 two-stage gear pump (successor branch) | 94.6/56.8L/min at 1770rpm, splined pump motor |
| RB120 fuel tank (successor branch) | 446.7L |
| RB120 return oil filter (successor branch) | 7 micron and bypass |
| RB120 in-box filter (successor branch) | in tank strainer |
| RB120 double steel wire braided hydraulic hose (successor branch) | Blasting 621bar, MSHA2G flame retardant; non-working pressure/JIC connector |
| RB120 foot double-acting cylinder (successor branch) | One piece, bore 76.2mm |
| RB120 drill arm feed double-acting cylinder (successor branch) | One piece, bore 127mm, inline check |
| RB120 feed check valve (successor branch) | Drill arm cylinder online one-way valve |
| RB120ATRS supports double-acting cylinder (successor branch) | One piece, bore 89mm, hydraulically controlled one-way valve |
| RB120ATRS hydraulic control check valve (successor branch) | Support cylinder retention |
| RB120 main control valve group (successor branch) | Operator walking station with six functions, spring return in both directions, main overflow 138bar |
| RB120 inter-wheel auxiliary control (successor branch) | Three groups between wheels on the operating side: feet/ATRS/micro-walking |
| RB120 drilling station cable auxiliary control (successor branch) | Two sets of rotation/feed, no electrical control |
| RB120 cable reel valve handle (successor branch) | One piece of walking stand |
| RB120 start button (successor branch) | One walking station and one drilling station, two in total |
| RB120 emergency stop belt (successor branch) | Three locations of traveling station/drilling station/positioning control |
| RB120 motor starter (successor branch) | Size3 electromechanical starter with heater strips |
| RB120 transformer (successor branch) | 1.5kVA |
| RB120 circuit breaker (successor branch) | 100A |
| RB120ABC dry powder fire extinguishing system (successor branch) | Four-point, 9.1kg storage tank, two manual start areas in the operation room/drilling station |
| RB120H-shaped ATRS (successor branch) | Reach 1930mm, single master cylinder, and the p1 support cylinder does not overlap and counts as two pieces |
| RB120 low-profile box-type rigid frame (successor branch) | Box-type lightweight and high-strength structure |
| RB120 drill arm tool storage area (successor branch) | Used for storage of drill pipes, drill bits, anchor rods and resin, unnamed random overhaul kit |
| RB120 adjustable walking shed (successor branch) | Manual height adjustment |
| RB120 pressure gauge (successor branch) | Two watches for walking and standing |
| RB120 dust removal blower (successor branch) | Guyan3300, 56CFM/12inHg, variable |
| RB120 dust removal drive hydraulic motor (successor branch) | Driven by pulley/V-belt; the word directly does not mean coaxial direct connection |
| RB120 dust removal pulley (successor branch) | blower sheaves |
| RB120 dust removal V-belt (successor branch) | Vacuum blower drive |
| RB120 dust collection box (successor branch) | Donaldson style, not certified as a complete machine produced by Donaldson |
| RB120 dust separator (successor branch) | dust box internal separator |
| RB120 dust collecting cyclone (successor branch) | cyclone inside dust box |
| RB120 dust collection filter (successor branch) | dust box internal filter, filter material not listed |
| RB120 solid tire (successor branch) | Four 26×7-12 |
| RB120 formed rim (successor branch) | formed rim assemblies |
| RB120 cable drum (successor branch) | Diameter 457mm; capacity conflicts with original 83.8mm/275ft, no correction value is used |
| RB120 supplied with towing cable (successor branch) | #4/3C GGC round cable, supplied with 7.6m25ft |
| RB120 front and rear lighting (successor branch) | One Ocenco incandescent lamp at the front and rear |
| RB120 drill station protective shed (successor branch) | Connected to the ATRS support arm, the non-walking shed automatically assembles the same parts |
| RB120 pump motor (successor branch) | 440VAC, 29.8kW40hp one hour 1770rpm, explosion-proof fully enclosed/no ventilation/foot/spline pump direct installation |
| RB120 oil sample collection kit category (successor branch) | Original album Seven(7) oil sampling kits; name/quantity is clear but members are not included at all |
| Component | Location |
|---|---|
| Travel hydraulic motor | four-wheel traveling drive |
| Wet parking brake | Front wheel brake |
| Four-stage gear pump | Hydraulic pump set |
| Return oil filter | Hydraulic oil tank return system |
| Drill arm feed cylinder | Drill arm feed |
| Drill arm rotary cylinder | Drill arm swing |
| Drilling position ceiling adjustment cylinder | Drilling station roof protection |
| Articulated center pin and thrust bearing | fuselage hinge |
| Oil sampling kit | Maintenance sampling accessories |
The Bucyrus Roof Bolters (LRB / RB2) covers 2 models: Bucyrus LRB roof bolter, Bucyrus RB2 roof bolter. Former and renamed designations are listed in the models table on this page.
The Bucyrus Roof Bolters (LRB / RB2) is also documented under these designations: Bucyrus LRB roof bolter, Bucyrus Roof bolter LRB-15AR, Cat RB120, Bucyrus RB2 roof bolter, Bucyrus Roof bolter RB2-52A, Bucyrus Roof bolter RB2-88A.
The Bucyrus Roof Bolters (LRB / RB2) is listed under the Bucyrus brand as: Roof bolter. Period: 2 2013–2014. Status: Historical model.
53 components are recorded, including: RB120 four-wheel planetary drive hub (successor branch), RB120 traveling hydraulic motor (successor branch), RB120 parking brake (successor branch), RB120 two-stage gear pump (successor branch), RB120 fuel tank (successor branch), RB120 return oil filter (successor branch), RB120 in-box filter (successor branch), RB120 double steel wire braided hydraulic hose (successor branch) and more. The full list with locations is in the components table on this page.
Bucyrus LRB-15AR → Cat / Unit Rig RB120, Bucyrus RB2-52A → Cat / Unit Rig RB220, Bucyrus RB2-88A → Cat / Unit Rig RB230.
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