R2900G Underground Mining Loader

The R2900G underground loader is designed for high production, low cost-per-ton loading and tramming in underground mining applications. Compact design with agile performance, rugged construction and simplified maintenance ensures excellent productivity, long life and low operating costs. Engineered for performance, designed for comfort, built to last.

Engine Model
Cat® C15 ACERT™
Rated Power
1800.0 rpm
Gross Power – SAE J1995
409 hp
Nominal Payload Capacity
37926.0 lb

Specs

Engine

Engine Model
Cat® C15 ACERT™
Rated Power
1800.0rpm
Gross Power – SAE J1995
409hp
Bore
5.4in
Stroke
6.8in
Displacement
927.9in3
Gross Power – VR Engine – SAE J1995
409hp
Gross Power – Tier 3 Engine – SAE J1995
409hp
Engine Model
Cat® C15
Rated Power
1800r/min
Gross Power - SAE J1995
409HP
Bore
5.4in
Stroke
6.8in
Displacement
927.9in³
Gross Power - Tier 3 Engine - SAE J1995
409HP
Gross Power - VR Engine - SAE J1995
409HP
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 specificat
Note (4)
Optional Ventilation Reduction Package available.
Note (1)
Power ratings apply at a rated speed of 1,800 rpm when tested under the reference conditions for the specified standard.
Note (3)
No engine derating required up to 591 m (1,938 ft) altitude.
Note (5)
Optional Tier 3 engine package emits equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
Engine Power - VR Engine - ISO 14396:2002
401HP
Engine Power - Tier 3 Engine - ISO 14396:2002
401HP

Operating Specifications

Nominal Payload Capacity
37926.0lb
Gross Machine Mass
155095lb
Static Tipping Load - Straight Ahead - Lift Arms Horizontal
88015lb
Static Tipping Load - Full Turn - Lift Arms Horizontal
75109lb
Breakout Force - SAE
60298lb
Nominal Payload Capacity
37920lb
Gross Machine Mass
155095lb
Rated Payload
37920lb

Turning Dimensions

Articulation Angle
42.5°
Inner Clearance Radius
133.2in
Outside Clearance Radius
288.3in
Axle Oscillation
Articulation Angle
42.5°
Inner Clearance Radius
133.2in
Outside Clearance Radius
288.3in

Transmission

Forward 1
3.4mph
Forward 2
6.0mph
Forward 3
10.7mph
Forward 4
18.5mph
Reverse 1
4.1mph
Reverse 2
7.3mph
Reverse - 3
13mile/h
Reverse - 4
22mile/h
Forward - 1
3.4mile/h
Forward - 2
6mile/h
Forward - 3
10.7mile/h
Forward - 4
18.5mile/h
Reverse - 1
4.1mile/h
Reverse - 2
7.3mile/h

Tires

Tire Size
29.5 × 29 34 PLY VSMS
Tire Size
29.5 × 29

Standards

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
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
Standards
ROPS/FOPS Certified Cab

Weights

Empty – Front Axle
50832.0lb
Empty – Rear Axle
59860.0lb
Loaded – Front Axle
110716.0lb
Loaded – Rear Axle
37895.0lb
Empty*
110692lb
Loaded*
148611lb
Note
*Calculated Weight.
Empty - Front Axle
50832lb
Empty - Rear Axle
59860lb
Loaded - Front Axle
110716lb
Loaded - Rear Axle
37895lb
Note
*Calculated Weight.
Operating Mass + Rated Payload* - Rear Axle
37895lb
Operating Mass*
110692lb
Operating Mass + Rated Payload* - Front Axle
110716lb
Operating Mass* - Front Axle
50832lb
Operating Mass + Rated Payload*
148611lb
Operating Mass* - Rear Axle
59860lb

Service Refill Capacities

Engine Crankcase
9.0gal
Cooling System
19.8gal
Front Differential and Final Drives
31.4gal
Hydraulic Tank
37.0gal
Rear Differential and Final Drives
33.5gal
Transmission
16.4gal
Front Differential and Final Drives - With Axle Oil Cooling System
42gal (US)
Rear Differential and Final Drives - With Axle Oil Cooling System
44.1gal (US)
Fuel Tank - Dual
376.4gal (US)
Engine Crankcase
9gal (US)
Cooling System
19.8gal (US)
Front Differential and Final Drives
31.4gal (US)
Hydraulic Tank
37gal (US)
Rear Differential and Final Drives
33.5gal (US)
Transmission
16.4gal (US)

Bucket Capacities

Bucket Capacities
6.3-8.9 m3 (8.2-11.6 yd3)
Dump Bucket - 1**
8.2yd³
Dump Bucket - 2**
9.4yd³
Dump Bucket - 3**
10.9yd³
Dump Bucket - 4**
11.6yd³
Note
**High penetration bucket versions also available.
Note
**High penetration bucket versions also available.
Dump Bucket - 4
11.6yd³
Dump Bucket - 2
9.4yd³
Dump Bucket - 3
10.9yd³
Dump Bucket - 1
8.2yd³

Hydraulic Cycle Times

Raise
9.2s
Dump
3.4s
Lower, Empty, Float Down
3.1s
Total Cycle Time
15.7s

Features

Power Train – Engine

Power Train – Transmission

Hydraulics

Structures

Operator Comfort

Loader Bucket Systems

Serviceability

Customer Support

Safety

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:
      – Ansul, dry powder
      – 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