R1600H Underground Mining Loader

R1600H Underground Mining Loader

360° Exterior View

The R1600H underground loader is designed to meet the challenges of the most demanding underground mining applications. Compact design with agile performance, rugged construction and simplified maintenance ensures ...


Engine Model
Cat® C11 ACERT™
Rated Power
Gross Power - VR Engine - SAE J1995
Gross Power - Tier 3 Engine - SAE J1995
Gross Power - SAE J1995

Operating Specifications

Nominal Payload Capacity
Gross Machine Mass
Static Tipping Load - Straight Ahead - Lift Arms Horizontal
Static Tipping Load - Full Turn - Lift Arms Horizontal
Breakout Force - Tilt (ISO)
Breakout Force - Lift (ISO)


Loaded - Rear Axle
Loaded - Front Axle
Empty - Rear Axle
Empty - Front Axle


Forward - 1
Forward - 2
Forward - 3
Forward - 4
Reverse - 1
Reverse - 2
Reverse - 3
Reverse - 4


Tire Size
18.00 × 25


ROPS/FOPS Certified Cab

Service Refill Capacities

12.4gal (US)
Rear Differential and Final Drives
18.5gal (US)
Hydraulic Tank
33gal (US)
Fuel Tank
109.7gal (US)
Front Differential and Final Drives
18.5gal (US)
Engine Crankcase - With Filter
8.98gal (US)
Cooling System
14gal (US)
Front Differential and Final Drives - With Axle Oil Cooler
21.1gal (US)
Rear Differential and Final Drives - With Axle Oil Cooler
21.1gal (US)
Secondary Fuel Tank - If Equipped
88.3gal (US)

Turning Dimensions

Outside Clearance Radius*
*Clearance dimensions are for reference only.
Articulation Angle
Axle Oscillation
Inner Clearance Radius*

Bucket Capacities

Dump Bucket - 3
Dump Bucket - 2 - Standard Bucket
Bucket Capacities
4.2-5.9 m3 (5.5-7.7 yd3)
Dump Bucket - 1
Dump Bucket - 4
Ejector Bucket

Hydraulic Cycle Times

Lower, Empty, Float Down
Total Cycle Time

Power Train – Engine

The Cat C11 engine provides unequalled lugging force while digging, tramming and traversing steep grades. Torque rise effectively matches transmission shift points for maximum efficiency and fast cycle times. Mechanically Actuated, Electronic Unit Injection (MEUI™) high-pressure, direct injection fuel system electronically monitors operator demands and sensor inputs to optimize engine performance. Air-to-air aftercooling provides improved fuel economy by packing cooler, denser air into cylinders for more complete combustion of fuel and lower emissions. Oil coiled pistons increase heat dissipation and promote longer piston life. The crankshaft is forged and induction hardened for long-term durability. The Cat C11 engine features the optional Ventilation Reduction Package. The VR Package incorporates selective engine hardware and software to minimize diesel particulate matter in the engine exhaust. Engines equipped with the VR Package feature a significant ventilation rate reduction, maintains fuel consumption, and maintained or improved product performance. VR Package availability is subject to regional regulatory compliance. Optional U.S. EPA Tier 3 and EU Stage III equivalent engine is also available. A Cat Diesel Particulate Filter can be used with the VR engine package. This filter compliments the VR engine by further reducing particulate matter in the exhaust. Requires the use of 15 PPM ultra low sulfur diesel and CJ-4 low ash engine oil.

Power Train – Transmission

Power Shift Transmission

The Cat four-speed planetary power shift transmission is matched with the Cat C11 diesel engine to deliver constant power over a wide range of operating speeds and grades.

Robust Design

Designed for rugged underground mining conditions, the proven planetary power shift transmission is built for long life between overhauls.

Torque Converter Lockup Clutch

Combines maximum rimpull while in torque converter drive with the efficiency and performance of direct drive when the lockup clutch is engaged. The lockup clutch delivers more power to the wheels for superior power train efficiency.

Electronic Auto Shift Transmission

The electronic auto shift transmission increases operator efficiencies and optimizes machine performance. The operator can choose between manual or auto shift modes.

Transmission Neutralizer

The operator can engage the service brakes and neutralize the transmission, maintaining high engine rpm for full hydraulic flow, enhancing digging and loading functions.

Final Drives

Cat final drives work as a system with the planetary power shift transmission to deliver maximum power to the ground. Built to withstand the forces of high torque and impact loads.

Oscillating Rear Axle

Oscillating rear axle ensures four-wheel ground contact for maximum traction and stability at all times.


Fully enclosed oil immersed disc brakes incorporate independent service and parking brake pistons. Hydraulic actuated independent circuits provide improved performance and reliability.


Hydraulic System

Powerful Cat hydraulics deliver exceptional digging and lifting forces for fast cycle times. High hydraulic flow rates provide fast hydraulic cylinder response and powerful lift forces. Large-bore lift and tilt cylinder delivers exceptional strength, performance and durability.

Pilot Controls

Low effort, pilot operated joystick implement control with simultaneous lift and tilt functions optimizes operating efficiency.

Cat Hydraulic Hose

Field proven Cat high pressure XT hydraulic hoses are exceptionally strong and flexible for maximum system reliability and long life in the most demanding conditions. Reusable couplings with O-ring face seals provide superior, leak free performance.

Optional Ride Control

The optional ride control system uses a nitrogen filled oil accumulator in the hydraulic lift circuit to act as a shock absorber for the bucket and lift arms. The lift arm and bucket response to movement is dampened over rough ground, reducing fore and aft pitch, improving cycle times and load retention. A smoother, more comfortable ride gives operators the confidence to travel at speeds above 5 km/h (3 mph) during load and carry operations.


Frame Design

The frame is engineered to withstand extreme forces generated during loading and tramming cycles. Precision manufacturing process ensures all structures are consistently built to high quality. Deep penetration and consistent welds throughout the frame ensures structures are solidly fused to provide sturdy platform for the linkage and the axles. The design and manufacturing quality of Cat LHD frames have been proven by our customers, many of whom reuse frames during machine rebuilds to get 2nd and 3rd lives out of their LHD's.


Spread hitch design widens the distance between upper and lower hitch plates to distribute forces and increase bearing life. Thicker hitch plates reduce deflection. The wide opening provides easy service access. Upper and lower hitch pins pivot on roller bearings to distribute horizontal and vertical loads over a greater surface area. Shim adjusted preload reduces maintenance time. An on-board steering frame lock pin is fitted to prevent articulation during maintenance and service.

Sealed Pins

Sealed colleted pins are fitted to all bucket and lift arm hinge points for longer pin and bushing life. This reduces maintenance costs and extends service intervals. The sealed joints retain lubrication and prevent contaminant entry.

Z-bar Loader Linkage

Proven Z-bar loader linkage geometry generates powerful breakout force and an increased rack back angle for better bucket loading and material retention. Heavy duty steel lift arms with cast steel cross tube ensures extreme loads encountered during loading and tramming are efficiently dissipated for long service life.

Operator Comfort

The operator station is ergonomically designed for total machine control in a comfortable, productive and safe environment. All controls, levers, switches and gauges are positioned to maximize productivity and minimize operator fatigue.

Protective Structure

Integral to the cab and frame, the resiliently mounted Roll Over Protective Structure (ROPS) and the Falling Objects Protective Structure (FOPS), isolates the operator from vibration for a more comfortable ride.

Optional Enclosed Cab

Optional sound-suppressed ROPS cab provides a quiet, secure working environment. Large window openings offer excellent visibility in all directions. Air conditioning provides filtered, pressurized, temperature-controlled air for a more comfortable working environment.

STIC™ Steering and Transmission Integrated Control

STIC provides effortless control of the machine by a single controller. Simple side-to-side motion articulates the machine. Directional shifting (forward/neutral/reverse) is controlled using a three position rocker switch. The thumb operated buttons control gear selection.

Color Multi Purpose Display (CMPD)

A multi screen display unit showing various levels of machine system conditions, pressures and temperatures. Warning information displayed advising operator of problem and response required. Operator or technician can view real time information without having to use service tooling devices. Multi language options available to enable data to be read in various languages.

Pilot Controls

Low-effort pilot operated joystick controls integrate steering, transmission and implement functions for smoother, faster cycles with less operator fatigue.

Loader Bucket Systems


Cat LHD buckets deliver unmatched productivity and structural reliability to help lower your cost-per-ton. Buckets are available in a range of sizes to suit most material types and densities.

Optional Wear Packages

Weld-on wear plates in high wear areas are standard. Additional wear packages, including sacrificial wear strips and Cat heel shrouds protect the edges from damage and reduce the need for costly bucket rebuilds.

Bucket Selection

Cat underground loader buckets are available in two styles to meet a range of loading, hauling and dumping conditions.


  • Dump buckets

  • Ejector buckets
Optional Cutting Edges

Cat half arrow and cast half arrow cutting edges extend bucket life in high wear applications. Additional GET option is the Cat weld-on GET. Available weld-on GET offers more wear material to maximize system wear life and bucket protection. Downtime is also reduced by an even wear rate between corners and edge segments, allowing both to be replaced at the same time.


Service Access

Easy access to daily service points simplifies servicing and reduces time spent on regular maintenance procedures.

Ground-Level Access

Allows convenient servicing to all tanks, filters, lubrication points and compartment drains. Electric fuel priming. Engine oil and fuel filters installed on cold side of engine.

Air Filters

Radial seal air filters are easy to change, reducing time required for air filter maintenance.

Sight Gauges

Fluid level checks are made easier with sight gauges.


CMPD multi screen display along with Caterpillar Electronic Technician (Cat ET) service tool enables quick electronic diagnosis of machine performance and key diagnostic data for effective maintenance and repairs.

Sealed Electrical Connectors

Electrical connectors are sealed to lock out dust and moisture. Harnesses are covered for protection. Wires are color and number coded for easy diagnosis and repair.

Scheduled Oil Sampling

S·O·SSM helps avoid minor repairs becoming major ones. Sample point adaptors fitted standard to machine.

Customer Support

Dealer Capability

Cat dealers will provide the level of support you need, on a global scale. Dealer expert technicians have the knowledge, experience, training and tooling to handle your repair and maintenance needs, when and where you need them.

Product Support

When Cat products reach the field, they are supported 24/7 by a worldwide network of reliable and prompt parts distribution facilities, dealer service centers, and technical training facilities to keep your equipment up and running.

Service Support

Cat equipment is designed and built to provide maximum productivity and operating economy throughout its working life. Cat dealers will be with you every step of the way with its unsurpassed worldwide parts support, trained technicians and customer support agreements.

Technology Products

Cat dealers offer a range of advanced technology products designed to improve efficiency, productivity and lower costs. VIMS™ Gen 3 and Command for Underground options available from factory.


Repair or rebuild? Your Cat dealer can help you evaluate the costs so you can make the right choice.


Product Safety

Caterpillar has been and continues to be proactive in developing mining machines that meet or exceed safety standards. Safety is an integral part of all machine and systems designs.

Engine Shut Off Switch

3 engine shut off switches located at ground level

  • Rear left hand side
  • Rear right hand side
  • Under operator seat
Integral ROPS Cab

Integral to the cab and frame, the ROPS is resiliently mounted to the frame to isolate the operator from vibration for a more comfortable ride.

Brake Systems

Four corner oil-cooled braking system provides excellent control. The service brake system is actuated by modulated hydraulic pressure, while the parking brake function is spring applied and hydraulic released. This system assures braking in the event of loss of hydraulic failure.

Standard Safety Features

Anti-skid upper deck surfaces, lower cab light, ground level compartment sight glasses, increased visibility, 3-point access to cab and machine, push out safety glass, suspension seat, inertia reel retractable seat belt, bucket control group safety pins, hot and cold side of engine, articulation lock, hinged belly guards.

Operator Present System

This standard system protects the machine and operator from uncontrolled machine movements.


For more information on safety, please visit www.cat.com/safety.

Loader and Truck Combination

The R1600H can easily load the AD30 truck fitted with a dump body or ejector body configuration using a standard dump bucket or if restricted by height the ejector bucket option could be used on the loader.

The AD45B underground truck can also be matched with the R1600H when a larger truck model is required.

Standard Equipment:

Optional Equipment:

    Optional Equipment
    • Brake Release Arrangements, Includes Steering Release
      – Recovery Hook
      – Recovery Bar
    • Buckets
      – Cutting Edge, Cat Weld On
      – Cutting Edge, Half Arrow, Flat
      – Ejector Bucket Installed
      – Heel Shrouds, Ejector and Dump Buckets
      – Lip Fully Welded or Tack Welded
      – Mechanically Attached Wear Plate System (MAWPS)
      – Various Sizes, Dump (4.2 m³/5.5 yd³ to 5.9 m³/7.7 yd³), Ejector (4.8 m³/6.3 yd³)
      – Wear Bars, Ejector and Dump Buckets
      – Wear Liner (4.8 m³/6.3 yd³ Dump Bucket)
    • Cover, Antivandalism for Shipping
    • Drawbar Attachment, Bolt-on
    • Dual Fuel Tanks
    • Engine Options
      – Diesel Particulate Filter (for use with VR Engine only)
      – Engine, Ventilation Reduction (VR)
      – Engine, Tier 3
    • Fast Fill System
      – Coolant
      – Engine Oil
      – Fuel (Single or Dual Tanks)
      – Hydraulic Oil
      – Transmission Oil
    • Fire Suppression System, Ansul
    • Fluids
      – Arctic Fuel
      – Arctic Coolant
    • Front Light Protectors
    • Fuel System Manual Shut Off Tap
    • Guard, Rear Side Quarter Window
    • Hydraulic System
      – Ejector Bucket Ready
      – Alternate Implement/Pilot Control Configuration
    • Idle Timer
    • Lighting
      – External Lighting System, Front, Rear, LED Work Lights
    • Lubrication System
      – Automatic
      – Centralized
    • Mine Transfer
      – Mine Transfer Ready Rear Frame (Tack Welded)
      – Lifting Group, Mine Transfer
    • Operators Station ROPS/FOPS Enclosed
      – Air Conditioning and Heater
      – Cab Pressurizer and Filter
      – Dome Light
      – Radio Ready Compartment for Radio and Speakers
    • Operators Station FOPS Open
      – Removable Canopy
    • Operator and Maintenance Manual
      – Chinese
      – French
      – Indonesian
      – Portuguese
      – Russian
      – Spanish
    • Park Brake Switch Engagement
      – Push to Apply
      – Pull to Apply
    • Payload Control System (PCS)
    • Remote Control Interface (excludes Transmitter and Receiver)
      – Cattron
      – RCT
    • Reversible Steering
    • Ride Control System
    • Rim
      – Tube Type
      – Spare (Tube or Tubeless)
    • Seat Covers, Tee and Standard
    • Secondary Steering System
    • Service Tools
      – Recovery Bar (for use with Brake Release, Recovery Bar System)
      – Reference Parts Manual for Additional Tooling Available
    • Technology
      – Command for Underground
      – Vital Information Management System (VIMS) Gen 3
    • Tee Seat
    • Tire Arrangements
      – Tire, 18 × R25 VSMS L-5S Bridgestone
      – Tire, 18 × 25 STMS L5S Bridgestone
    • Wear Protection Bars
      – Cab/ROPS
      – Hydraulic Tank
      – Radiator
    • Windows
      – Single Pane
      – Dual Pane
    • NOTE: Not all features are available in all regions. See your Cat dealer for more information.