The Cat® R2900G underground loader is designed for high-production, low cost-per-ton loading and tramming in underground mining applications. An operator favorite, it delivers a safe, comfortable ride in a cab equipped with easy-to-use controls and efficiency-boosting features that optimize performance and maximize productivity. Its compact design provides agile performance combined with rugged construction and simplified maintenance to ensure excellent productivity, long life and low operating costs.
Caterpillar
R2900G Underground Mining Loader
Overview
Photos
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R2900G Underground Mining Load-Haul-Dump (LHD) Loader -
R2900G Underground Mining Load-Haul-Dump (LHD) Loader -
R2900G Underground Mining Load-Haul-Dump (LHD) Loader -
R2900G Underground Mining Load-Haul-Dump (LHD) Loader -
R2900G Underground Mining Load-Haul-Dump (LHD) Loader -
R2900G Underground Mining Load-Haul-Dump (LHD) Loader -
R2900G Underground Mining Load-Haul-Dump (LHD) Loader -
R2900G Underground Mining Load-Haul-Dump (LHD) Loader
Videos
360° View
Exterior
R2900G 360 spinset exteior
Interior
Showroom
Features
Specifications
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Engine
Spec Value Engine Model Cat® C15 Engine Power - Tier 3 Engine - ISO 14396:2002 401 HP Engine Power - VR Engine - ISO 14396:2002 401 HP Bore 5.4 in Stroke 6.8 in Displacement 927.9 in³ Note (1) Power ratings apply at a rated speed of 1,800 rpm when tested under the reference conditions for the specified standard. Note (2) All rating conditions are based on ISO/TR14396:2002, inlet air standard conditions with a total barometric pressure of 100 kPa (29.5 in Hg), with a vapor pressure of 1 kPa (0.295 in Hg), and 25° C (77° F). Performance measured using fuel to EPA specifications in 40 CFR Part 1065 and EU specifications in Directive 97/68/EC with a density of 0.845-0.850 kg/L @ 15° C (7.05-7.09 lb/gal @ 59° F) and fuel inlet temperature 40° C (104° F). Note (3) No engine derating required up to 591 m (1,938 ft) altitude. Note (4) Optional Ventilation Reduction Package available. Note (5) Optional Tier 3 engine package emits equivalent to U.S. EPA Tier 3 and EU Stage IIIA. -
Operating Specifications
Spec Value Nominal Payload Capacity 37920 lb Gross Machine Mass 155095 lb Static Tipping Load - Straight Ahead - Lift Arms Horizontal 88015 lb Static Tipping Load - Full Turn - Lift Arms Horizontal 75109 lb Breakout Force - SAE 60298 lb -
Weights
Spec Value Operating Mass* 110692 lb Operating Mass* - Front Axle 50832 lb Operating Mass* - Rear Axle 59860 lb Operating Mass + Rated Payload* 148611 lb Operating Mass + Rated Payload* - Front Axle 110716 lb Operating Mass + Rated Payload* - Rear Axle 37895 lb Note *Calculated Weight. -
Transmission
Spec Value Forward - 1 3.4 mile/h Forward - 2 6 mile/h Forward - 3 10.7 mile/h Forward - 4 18.5 mile/h Reverse - 1 4.1 mile/h Reverse - 2 7.3 mile/h Reverse - 3 13 mile/h Reverse - 4 22 mile/h -
Hydraulic Cycle Times
Spec Value Raise 9.2 s Dump 3.4 s Lower, Empty, Float Down 3.1 s Total Cycle Time 15.7 s -
Bucket Capacities
Spec Value Bucket Capacity 6.3-8.9 m³ (8.2-11.6 yd³) Dump Bucket - 1 8.2 yd³ Dump Bucket - 2 9.4 yd³ Dump Bucket - 3 10.9 yd³ Dump Bucket - 4 11.6 yd³ -
Turning Dimensions
Spec Value Outside Clearance Radius 288.3 in Inner Clearance Radius 133.2 in Axle Oscillation 8° Articulation Angle 42.5° -
Tires
Spec Value Tire Size 29.5 × 29 -
Service Refill Capacities
Spec Value Engine Crankcase 9 gal (US) Transmission 16.4 gal (US) Hydraulic Tank 37 gal (US) Cooling System 19.8 gal (US) Front Differential and Final Drives 31.4 gal (US) Rear Differential and Final Drives 33.5 gal (US) Front Differential and Final Drives - With Axle Oil Cooling System 42 gal (US) Rear Differential and Final Drives - With Axle Oil Cooling System 44.1 gal (US) Fuel Tank - Dual 376.4 gal (US) -
Standards
Spec Value Brakes ISO 3450, AS2958.1, CAN-CSA424.30-M90 Cab - FOPS ISO 3449, SAE J231, AS2294.3, EN13627 Cab - ROPS ISO 3471, SAE J1040, AS2294.2, EN13510
Standard Equipment
ELECTRICAL
- Engine shutdown switch
- Lighting: Bucket lip
– External, front, rear, stop light, dual halogen - Receptacle Group, auxiliary start
- Starter, electric, 24-volt
- Starting and charging system
- Alarm, reversing
- Alternator, 95 amp
- Battery disconnect switch, ground level
- Batteries, low maintenance
- Diagnostic connector
OPERATOR ENVIRONMENT
- Automatic Brake Application (ABA)
- Cab:
– Cab, open, ROPS/FOPS - Caterpillar Electronic Monitoring System (CEMS), dash instrumental panels
- Horns, electric
- Instrumentation/gauges:
– Speedometer/tachometer
– Fuel level
– Hydraulic oil temperature
– Engine coolant temperature - Operator presence system
- Light, warning, residual brake
- Mounting, ROPS
- Pilot hydraulic implement controls (single joystick)
- Seat:
– Seat, suspension, vinyl - Seat belt, retractable
POWER TRAIN
- Brakes, full hydraulic enclosed wet multiple-disc (SAFR)
- Engine:
– Cat C15 six cylinder diesel
– Air-to-air aftercooler (ATAAC) - Exhaust:
– Exhaust, purifier, muffler - Filter, engine, remote mounted
- Fuel adapters:
– Standard fill, dual, rubber coated, double steel braided fuel lines - Fuel priming pump
- Park Brake Switch Engagement (choose between):
– Push to Apply
– Pull to Apply - Pre-cleaner, engine air intake
- Torque converter, lock-up clutch (LUC)
- Transmission:
– Electronic Clutch Pressure Control (ECPC)
– Auto planetary powershift (4F/4R)
– Transmission neutralizer
OTHER STANDARD EQUIPMENT
- Brake axle cooling
- Cap, radiator, manual release
- Catalytic exhaust purifier/muffler
- Dump bucket
- Bucket lip:
– Lip weldings – full weld edge or tack weld edge and corners - Decals, International Picto Graphics
- Fenders, front, rear
- Firewall
- Guards, engine and transmission
- Handholds
- Lift arm positioner for return to dig
- Radiator grill, swing out
- Service oil sample
- Valve, drain, transmission oil filter
- Valve, hydraulic, standard
- Windows:
– Single pane
TIRES, RIMS, AND WHEELS
- Tires arrangements: tires must be selected from the Mandatory Attachments section, choose between:
– Tire, 29.5 × R29 VSMS 2 Bridgestone
– Tire, 29.5 × R29 VSDL L5 Bridgestone - Rims (set of four): five piece, tubeless
Optional Equipment
ELECTRICAL
- Battery disconnect switch, in cab
- Lighting:
– Cat LED work lights
– Truck loading light
OPERATOR ENVIRONMENT
- Cab:
– Cab, enclosed, ROPS/FOPS - Camera, color rear facing
- Duct, air, flow diverter
- Idle timer (enclosed cab)
- Instrumentation/gauges:
– Brake pressure - Seat:
– Seat, suspension, tee, vinyl
– Seat, suspension, air, vinyl
– Seat covers, tee, air and standard
TECHNOLOGY PRODUCTS
- Command for Underground*
- Vital Information Management System (VIMS) Gen 3
- Payload system, Loadrite
- Remote Control Interface (excludes transmitter and receiver) – RCT
- Note: *Please consult with your Regional Commercial or Technology Representative prior to upgrading your machine to Command for Underground.
TIRES, RIMS, AND WHEELS
- Rim identification numbering
- Spare rim (tubeless)
POWER TRAIN
- Exhaust:
– Particulate filter, Flow Thru
– Particulate filter, Wall Flow - Fuel adapters:
– Standard fill, dual, stainless steel covered, single braided fuel lines
– Fast fill, dual, rubber coated, double steel braided fuel lines
– Fast fill, dual, stainless steel covered, single braided fuel lines - Secondary Steering System
- Engine Options:
– Engine, Ventilation Reduction (VR)
– VR engine, Flow Thru Ready
– Engine, Tier 3
OTHER OPTIONAL EQUIPMENT
- Brake Release Arrangements:
– Recovery hook
– Recovery bar - Buckets:
– Various sizes, dump (6.3 m3/8.2 yd3 to 8.9 m3/11.6 yd3)
– Light materials, dump, uninstalled (10.5 m3/13.7 yd3, 11.6 m3/15.2 yd3) - Bucket lip:
– Modular weld-on
– Bolt-on lips
– Durilock™ - Ground Engaging Tools:
– Cutting edge, Cat weld-on
– Cutting edge, bolt-on half arrow
– Cutting edge, shrouds, Durilock
– MAWPS – bucket lip protection
– Heel shrouds
– Wear bars
– Liners
– Overflow guard - Faster fill and evacuation systems:
– Engine, Fast Fill
– Radiator, Fast Fill
– Hydraulic, Fast Fill
– Transmission, Fast Fill - Draw bar attachment, bolt-on
- Fire Suppression System:
– Foam, water based - Fluids:
– Arctic coolant
– Arctic fuel - Guard, light and window
- Handrails
- Lubrication System:
– Automatic
– Centralized - Mine Transfer
- Reversible steering
- Reflective tape
- Ride Control System
- Service tools:
– Collet jacking bolts
– Recovery bar - Vandalism protection
- Windows
– Dual pane - Wear protection bars:
– Cab/ROPS
– Hydraulic tank
– Radiator
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