RB120

Mining Financial Services
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Overview

This particular model is Caterpillar's smallest and most compact roof bolter. It can be productive in the smallest spaces and in seam heights as low as 32 inches (81 cm). It has a single arm design with automatic temporary roof support and overhead canopies for the operator when tramming and bolting. While tramming, the operator can choose from two speed settings, and power is applied at each wheel to help it maintain traction in soft ground. Both simple and efficient, the RB120 is designed to get in and out of an entry quickly so production can resume.

Specifications

Units:
Operating Height 32.0 in 813.0 mm Less
Boom Single Single Less
Frame Fixed Fixed Less

Dimensions (approximate)

ATRS reach – with 26×7-12 tires 6.33 ft 1930.0 mm Less
Bolt tightening torque (adjustable) 200.0 lb ft 271.0 N·m Less
Chassis height – with 26×7-12 tires 2.17 ft 660.0 mm Less
Chassis overall width 6.17 ft 1880.0 mm Less
Drill boom feed 4.17 ft 1270.0 mm Less
Drilling feed thrust (maximum) 7000.0 lb 3175.0 kg Less
Drilling torque (variable) 280.0 lb ft 380.0 N·m Less
Ground clearance – with 26×7-12 tires 6.0 in 150.0 mm Less
Minimum tramming height – with 26×7-12 tires 2.67 ft 813.0 mm Less
Overall length with ATRS 14.83 ft 4521.0 mm Less
Tram speed – fast 0-39.6 m/min (0-130 ft/min) 0-39.6 m/min (0-130 ft/min) Less
Tram speed – slow 0-18.3 m/min (0-60 ft/min) 0-18.3 m/min (0-60 ft/min) Less
Wheelbase 3.5 ft 1067.0 mm Less

Drive Train

Type Four wheel planetary drive; each drive consists of a Fairfield W1B torque hub along with Char-Lynn series 2000 hydraulic motor. Four wheel planetary drive; each drive consists of a Fairfield W1B torque hub along with Char-Lynn series 2000 hydraulic motor. Less

Automatic Parking Brake

Type Two spring applied, hydraulic released, fail safe brakes at front of machine. Two spring applied, hydraulic released, fail safe brakes at front of machine. Less

Hydraulics

ATRS Support Cylinder One (1) 89 mm (3.5 in) bore, double acting cylinder with pilot operated check valve. One (1) 89 mm (3.5 in) bore, double acting cylinder with pilot operated check valve. Less
Boom Feed Cylinder One (1) 127 mm (5 in) bore, double acting cylinder with in line check valve. One (1) 127 mm (5 in) bore, double acting cylinder with in line check valve. Less
Hydraulic Hose Main system hoses are two wire braid rated at 621 bar (9,000 psi) burst pressure; MSHA 2G flame resistant approved; fittings JIC Main system hoses are two wire braid rated at 621 bar (9,000 psi) burst pressure; MSHA 2G flame resistant approved; fittings JIC Less
Pump Two stage gear pump rated at 94.6/56.8 L/min (25/15 gal/min) at 1,770 rpm with spline fit to pump motor. Two stage gear pump rated at 94.6/56.8 L/min (25/15 gal/min) at 1,770 rpm with spline fit to pump motor. Less
Reservoir 446.7 L (118 gal) capacity reservoir with 7 micron return filtration, filter by-pass and “in tank” strainer. 446.7 L (118 gal) capacity reservoir with 7 micron return filtration, filter by-pass and “in tank” strainer. Less
Stab Foot Cylinder One (1) 76.2 mm (3 in) bore, double acting cylinder. One (1) 76.2 mm (3 in) bore, double acting cylinder. Less
Valve Banks and Auxiliary Controls All valve banks are spring returned, bi-directional with main relief set at 138 bar (2,000 psi). All valve banks are spring returned, bi-directional with main relief set at 138 bar (2,000 psi). Less
Valve Banks and Auxiliary Controls All other pressures are set for each function accordingly. All other pressures are set for each function accordingly. Less
Valve Banks and Auxiliary Controls One (1) main valve bank One (1) main valve bank Less
Valve Banks and Auxiliary Controls Three (3) auxiliary controls Three (3) auxiliary controls Less
Valve Banks and Auxiliary Controls Two (2) auxiliary cable type controls Two (2) auxiliary cable type controls Less
Valve Banks and Auxiliary Controls One (1) cable reel control operated by means of valve handle located in the operator’s tram station. One (1) cable reel control operated by means of valve handle located in the operator’s tram station. Less

Electrical

Start Two (2) push buttons located at tram and drill station. Two (2) push buttons located at tram and drill station. Less
Stop Three (3) tape switch (panic strip) that de-energizes electrical system and applies automatic brake. Three (3) tape switch (panic strip) that de-energizes electrical system and applies automatic brake. Less

Controller

Type Size 3 electro-mechanical starter with heater strips, 1.5 kVA transformer and 100 amp circuit breaker. Size 3 electro-mechanical starter with heater strips, 1.5 kVA transformer and 100 amp circuit breaker. Less

Frame

Type Low profile rigid frame. The frame design is a box structure type for a light weight, high strength frame assembly. Low profile rigid frame. The frame design is a box structure type for a light weight, high strength frame assembly. Less

Operator’s Drill Station Area

Components Drill boom feed function control. Drill boom feed function control. Less
Components Drill rotation function control. Drill rotation function control. Less
Components Tool supply area on boom for drill steel, drill bits, bolts, resin, etc. Tool supply area on boom for drill steel, drill bits, bolts, resin, etc. Less

Tram Station Area

Components Cable reel function control. Cable reel function control. Less
Components Full tram function controls. Full tram function controls. Less
Components Manually adjustable tram canopy. Manually adjustable tram canopy. Less
Components Two pressure gauges. Two pressure gauges. Less

Manuals

Types Two parts manuals. Two parts manuals. Less

Miscellaneous

Kits Seven (7) oil sampling kits. Seven (7) oil sampling kits. Less

Fire Suppression

Type Four point, 9.1 kg (20 lb) tank, multi-purpose, ABC dry chemical fire suppression system; manually actuated. Four point, 9.1 kg (20 lb) tank, multi-purpose, ABC dry chemical fire suppression system; manually actuated. Less

ATRS (H-type)

Type 1930 mm (6 ft 4 in) reach H-type Design; one primary ATRS cylinder is required for this reach. 1930 mm (6 ft 4 in) reach H-type Design; one primary ATRS cylinder is required for this reach. Less

Mid-Machine Area (between tires)

Components ATRS support function control. ATRS support function control. Less
Components Stab foot function control. Stab foot function control. Less
Components Inch tram function controls. Inch tram function controls. Less

Dust System Blowers

Type Guyan 3300 series blower rated 56 CFM at 12 in Hg, variable. Guyan 3300 series blower rated 56 CFM at 12 in Hg, variable. Less

Blower Drive

Type Belt driven; vacuum blower is directly driven from a hydraulic motor by means of sheaves and “v” belts. Belt driven; vacuum blower is directly driven from a hydraulic motor by means of sheaves and “v” belts. Less

Dust Box

Type Donaldson style dust collector box with internal separator, cyclone and filter. Donaldson style dust collector box with internal separator, cyclone and filter. Less

Tire/Wheels

Type Four 26×7-12 Solid Rubber Tires – 26 in maximum form diameter, tires mounted on formed rim assemblies. Four 26×7-12 Solid Rubber Tires – 26 in maximum form diameter, tires mounted on formed rim assemblies. Less

Cable Reel

Type Unit is supplied with 7.6 m (25 ft) of recommended cable. Unit is supplied with 7.6 m (25 ft) of recommended cable. Less
Type 457 mm (18 in) diameter for #4/3C Round Cable – 83.8 mm (275 ft) capacity reel for #4/3C, GGC round trailing cable. 457 mm (18 in) diameter for #4/3C Round Cable – 83.8 mm (275 ft) capacity reel for #4/3C, GGC round trailing cable. Less

Lighting System

Type Ocenco Incandescent Lighting – with one headlight on front and rear. Ocenco Incandescent Lighting – with one headlight on front and rear. Less

Drill Station Canopy

Type Drill Station Canopy – Attached to A.T.R.S. support arm for operator coverage at drilling controls. Drill Station Canopy – Attached to A.T.R.S. support arm for operator coverage at drilling controls. Less

Voltage

Type 440 Volt AC Electrical System – pump motor rated at 29.8 kW (40 hp) for one hour at 1,770 rpm. 440 Volt AC Electrical System – pump motor rated at 29.8 kW (40 hp) for one hour at 1,770 rpm. Less
Type Splined insert for direct mounted pump and 440 volt AC heater strip. Splined insert for direct mounted pump and 440 volt AC heater strip. Less
Type MSHA totally enclosed explosion proof; non-ventilated cooling; foot mounted. MSHA totally enclosed explosion proof; non-ventilated cooling; foot mounted. Less

Accessories

Types Extra Parts Manual. Extra Parts Manual. Less
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Mining Financial Services

Cat Financial is the single best resource for all your international mining finance needs, with capabilities to offer everything from leasing and general financing to project and structured financing.

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