Caterpillar RB220 Roof Bolters

Specifications of Caterpillar RB220 Roof Bolters

Specifications

• Boom Dual
• Frame Articulated
• Operating Height 813.0 mm

Dimensions (Approximate)

• ATRS reach – with 28x12-15 tires 2438.0 mm
• ATRS reach – with 32x12.5-15 tires 2438.0 mm
• ATRS reach – with 35x15-15 tires 2438.0 mm
• Bolt tightening torque (adjustable) 258.0 N·m
• Chassis height – with 28x12-15 tires 686.0 mm
• Chassis height – with 32x12.5-15 tires 737.0 mm
• Chassis height – with 35x15-15 tires 775.0 mm
• Chassis overall width 2756.0 mm
• Drill boom feed 1321.0 mm
• Drilling feed thrust (maximum) 4536.0 kg
• Drilling torque (variable) 420.0 N·m
• Ground clearance – with 28x12-15 tires 152.0 mm
• Ground clearance – with 32x12.5-15 tires 203.0 mm
• Ground clearance – with 35x15-15 tires 241.0 mm
• Inside turn radius 2896.0 mm
• Maximum boom separation 4928.0 mm
• Minimum boom separation 1067.0 mm
• Minimum tramming height – with 28x12-15 tires 813.0 mm
• Minimum tramming height – with 32x12.5-15 tires 965.0 mm
• Minimum tramming height – with 35x15-15 tires 1003.0 mm
• Outside turn radius 6553.0 mm
• Overall length with ATRS 7671.0 mm
• Steering articulation 80° total
• Tram speed – fast 0-40 m/min (0-130 ft/min)
• Tram speed – slow 0-20 m/min (0-65 ft/min)
• Wheelbase 2007.0 mm

Drive Train

• Type Four wheel planetary drive; each drive consists of a Fairfield W3B torque hub along with a Char-Lynn series 2000 hydraulic motor

Electrical

• Start Push buttons at tram and drill stations.
• Stop Tape switch (panic strip) at tram and drill stations that de-energize electrical system and applies automatic brake.

Hydraulics

• Boom Feed Cylinder Two (2) 6.5 in bore, double acting cylinder on each boom with in line check valve, one per drilling assembly.
• Boom Swing Cylinder Two (2) 3.5 in bore, double acting cylinders, one per drilling assembly.
• Hydraulic Hose All main systems hoses are two wire braid rated at 9,000 psi burst pressure; MSHA 2G flame resistant approved; all fittings JIC
• Pump Four stage gear pump rated at 35/35/15/15 gpm at 1,770 rpm with spline fit to pump motor.
• Reservoir 150 gal capacity reservoir with 7 micron return filtration, filter by-pass and “in tank” strainer.
• Stab Foot Cylinder Two (2) 4 in bore, double acting cylinders, one per drilling assembly.
• Steering Cylinder Two (2) 4 in bore, double acting cylinders.
• Sumping Cylinder Four (4) 1.5 in bore, double acting cylinders two per drilling assembly.
• Valve Banks 1 One (1) ATRS and vertical articulation valve bank
• Valve Banks 2 One (1) inch tram valve bank at rear of operator's side drilling assembly
• Valve Banks 3 One (1) cable reel and vertical articulation valve bank
• Valve Banks 4 All valve banks are spring returned, bi-directional with main relief set at 2,000 psi.
• Valve Banks 5 All other pressures are set for each function accordingly.
• Valve Banks 6 Two (2) boom function valve banks, one per drilling assembly
• Valve Banks 7 One (1) tram valve bank controlled by means of a joystick valve in operator's compartment

AUTOMATIC PARKING BRAKE

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

CONTROLLER

• Type Size 4 vacuum contactors, 1.5 KVA transformer and 150 amp circuit breaker.

FRAME

• Type Low profile with bends utilized where applicable to reduce the number of indeterminate stresses introduced by welding.

OPERATOR’S DRILL STATION AREA

• Components 1 Hydraulically operated drill boom and stab foot functions
• Components 2 ATRS function control and all other positioning function control
• Components 3 Vertical articulation function control
• Components 4 Storage tool tray on each boom for drill steel, starter steel, drill bits and etc.
• Components 5 Inch tram function control (left hand drilling assembly only)
• Components 6 1 in thick, hydraulically adjustable drill station canopy on each drilling assembly

TRAM STATION AREA

• Components 1 1 in thick manually adjustable canopy
• Components 2 Heavy duty seat
• Components 3 Full tram function control
• Components 4 Power fill function control
• Components 5 Vertical articulation function control
• Components 6 Cable reel function control
• Components 7 Four pressure gauges
• Components 8 Steering function control

MANUALS

• Types 1 Two parts manuals
• Types 2 One LinkOne CD which includes all above manuals in electronic format
• Types 3 Two operation/maintenance manuals/troubleshooting guides

MISCELLANEOUS

• Kits Seven (7) oil sampling kits

RESERVOIR FILL SYSTEM

• Type Power hydraulic fill, allows hydraulic oil to be added to reservoir without hand pumping.