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Roof Bolters

Caterpillar offers a broad line of room & pillar products that have undergone extensive redesign and re-engineering to deliver the highest performance available in the marketplace.

RB230 - Roof Bolter

Caterpillar combines technology with keen customer insights to deliver a new level of innovative, safe and productive roof bolters. Key Features: • Skid or proprietary articulated steering (depending on model) • Horizontal and vertical articulation (on dual-boom models) • Floor and roof avoidance compensation (on dual-boom models) • Individual planetary wheel drives-no sprockets or chains • User-friendly operator zones • Single AC primary drive motor • Single hydraulic oil pump • Easy access components • Quick free-steering towing conversion • Streamlined, practical space-planned tram station

Product Details

Specifications

Operating Height 1372.0 mm
Boom Dual
Frame Articulated

Manuals

Types Two parts manuals.
Types One LinkOne CD which includes all above manuals in electronic format.
Types Two operation/maintenance manuals/troubleshooting guides.

Hydraulics

Boom Feed Cylinder Two (2) 165 mm (6.5 in) bore, double acting cylinder on each boom with in line check valve, one per drilling assembly.
Boom Swing Cylinder Two (2) 89 mm (3.5 in) bore, double acting cylinders, one per drilling assembly.
Pump Four stage gear pump rated at 132/132/57/57 L/min (35/35/15/15 gal/min) at 1,770 rpm with spline fit to pump motor.
Reservoir 568 L (150 gal) capacity reservoir with 7 micron return filtration, filter by-pass and “in tank” strainer.
Stab Foot Cylinder Two (2) 101 mm (4 in) bore, double acting cylinders, one per drilling assembly.
Steering Cylinder Two (2) 101 mm (4 in) bore, double acting cylinders.
Sumping Cylinder Four (4) 38 mm (1.5 in) bore, double acting cylinders two per drilling assembly.
Valve Banks One (1) ATRS and vertical articulation valve bank.
Valve Banks One (1) inch tram valve bank at rear of operator's side drilling assembly.
Valve Banks One (1) steering valve bank controlled by means of a joy stick valve.
Valve Banks One (1) cable reel and vertical articulation valve bank
Valve Banks All valve banks are spring returned, bi-directional with main relief set at 13.79 Mpa (2,000 psi).
Valve Banks All other pressures are set for each function accordingly.
Valve Banks Two (2) boom function valve banks, one per drilling assembly.
Valve Banks One (1) tram valve bank controlled by means of a joystick valve in operator's compartment

Frame

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

Dimensions (approximate)

ATRS reach – with 32x12.5-15 tires 3010.0 mm
ATRS reach – with 35x15-15 tires 3048.0 mm
Bolt tightening torque (adjustable) 258.0 N·m
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 2235.0 mm
Drilling feed thrust (maximum) 4536.0 kg
Drilling torque (variable) 420.0 N·m
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 5385.0 mm
Minimum boom separation 1168.0 mm
Minimum tramming height – with 32x12.5-15 tires 1181.0 mm
Minimum tramming height – with 35x15-15 tires 1219.0 mm
Outside turn radius 6553.0 mm
Overall length with ATRS 7671.0 mm
Steering articulation 80° total
Tram speed – fast 2.38 m/sec (0-130 fpm)
Tram speed – slow 1.19 m/sec (0-65 fpm)
Wheelbase 2032.0 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

Miscellaneous

Kits Seven (7) oil sampling kits.

Automatic Parking Brake

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

Operator’s Drill Station Area

Components Hydraulically operated drill boom and stab foot functions.
Components ATRS function control and all other positioning function control.
Components Vertical articulation function control.
Components Storage tool tray on each boom for drill steel, starter steel, drill bits and etc.
Components Inch tram function control (left hand drilling assembly only).
Components 25 mm (1 in) thick, hydraulically adjustable drill station canopy on each drilling assembly.

Tram Station Area

Components 25 mm (1 in) thick manually adjustable canopy.
Components Heavy duty seat.
Components Full tram function control.
Components Power fill function control.
Components Vertical articulation function control.
Components Cable reel function control.
Components Four pressure gauges.
Components Steering function control.

Reservoir Fill System

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

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.

Controller

Type Size 4 vacuum contactors, 1.5 KVA transformer and 150 amp circuit breaker.
  • Voltage/Blower Option
    •  440 Volt AC, Roots Whispair Blower - electrical system with pump motor rated at 80 hp; blowers rated at flows to 81 CFM at 508 mm (20") Hg. Each vacuum blower is directly belt driven from the electric motor by means of sheaves and “v” belts.
  • Lighting Option
    •  MCI Fluorescent Lighting, High - area lighting with one headlight on front and rear for high seam applications up to 3048 mm (10 ft).
  • MCI Fluorescent Lighting, High - area lighting with one headlight on front and rear for high seam applications up to 3048 mm (10 ft).
    • Cable Reel Option
      •  610 mm (24 in) diameter for #2/3C Round Cable - 106 680 mm (350 ft) capacity horizontal type reel with free payout and hydraulic motor, chain drive wind in for recommended #2/3C, GGC round trailing cable. Unit is supplied with 6096 mm (20 ft) of recommende
    • 610 mm (24 in) diameter for #2/3C Round Cable - 106 680 mm (350 ft) capacity horizontal type reel with free payout and hydraulic motor, chain drive wind in for recommended #2/3C, GGC round trailing cable. Unit is supplied with 6096 mm (20 ft) of recommende
      • Tram Canopy Option
        •  Tram Canopy, 1117 mm (3 ft 8 in) minimum height - manually adjustable tram canopy with a minimum height of 1168 mm (3 ft 10 in) and a maximum height of 1397 mm (4 ft 7 in) at 216 mm (8.5 in) ground clearance.
      • Tram Canopy, 1117 mm (3 ft 8 in) minimum height - manually adjustable tram canopy with a minimum height of 1168 mm (3 ft 10 in) and a maximum height of 1397 mm (4 ft 7 in) at 216 mm (8.5 in) ground clearance.
        • Drill Chuck Option
          •  Universal, Extended Dry/Deep Splined Chuck - chuck protrudes above drill head by 61 mm (2.375 in) with no need for drill chuck retention.
        • ATRS Option
          •  3226 mm (10 ft 7 in) Reach, 3480 mm (11 ft 5 in) to 4115 mm (13 ft 6 in) Wide Sumping Crossbeam - T-Bar with hydraulic sump roof support contact rocker arms to allow crossbeam to extend from 3480 mm (11 ft 5 in) to 4115 mm (13 ft 6 in). This T-Bar consists
        • 3226 mm (10 ft 7 in) Reach, 3480 mm (11 ft 5 in) to 4115 mm (13 ft 6 in) Wide Sumping Crossbeam - T-Bar with hydraulic sump roof support contact rocker arms to allow crossbeam to extend from 3480 mm (11 ft 5 in) to 4115 mm (13 ft 6 in). This T-Bar consists
          • Tire/Wheel Option
            •  Four 35x15-15, 889 mm (35 in) Foam Filled Tires - 20 ply, 889 mm (35 in) maximum form diameter foam filled tires mounted on rim assemblies.
          • Drill Speed Option
            •  650 RPM Maximum Drill Speed - generated by means of a 32 mm (1.25 in) gear width hydraulic motor.
          • 650 RPM Maximum Drill Speed - generated by means of a 32 mm (1.25 in) gear width hydraulic motor.
            • Controller Cover/Oil Level Switch Option
              •  Oil Level Switch, Light Only - above cover assembly with the addition of a low oil warning light.
            • Oil Filter Brand Option
              •  Schroeder “Spin-On” Oil Filter - 7 micron return side filter. The filter is equipped with by-pass and external dirty filter indication.
            • Blower Exhaust Location Option
              •  Left Side, Operator’s Side - at rear of machine.
            • Left Side, Operator’s Side - at rear of machine.
              • Roof Bolter Accessories
                •  Pre-Duster Installation - remote tank with a 122 m3 (0.4 ft3) capacity that removes larger dust particles automatically, when stab cylinder is activated.
                •  One Hand Rotation/Drill Feed Control Installation.
                •  Schroeder Test Mate Installation - four test ports, one for each stage of the main hydraulic pump.
                •  Grease Zone Lubrication Installation
                •  Torque Gauge Installation - monitor the amount of torque being applied to the roof bolts during installation (one gauge for each drilling assembly).

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