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Three Axle Articulated Trucks(Non Current)

Cat Articulated Trucks are extremely versatile, moving a wide spectrum of material in a variety of applications and underfoot conditions. Durability and reliability mean articulated trucks often provide the best return on investment.

730 Ejector Articulated Truck

The 730 Ejector truck offers proven reliability and durability, high performance, low fuel consumption, operator comfort and low operating costs.

  • Specification Summary

  • Engine ModelCat® C11 ACERT™
  • Standard Wheel Base242 mm
  • Long Wheel Base237 mm
  • Rated Payload28.1 tonnes
  • Heaped SAE 2:116.9 m3

Product Details


Engine Model Cat® C11 ACERT™
Gross Power - SAE J1995 242 kW
Net Power - SAE J1349 237 kW
Net Power - ISO 9249 239 kW
Net Power - EEC 80/1269 239 kW
Flywheel Power 237 kW
Bore 130 mm
Stroke 140 mm
Displacement 11.15 L


Rated Payload 28.1 tonnes

Body Capacities

Heaped SAE 2:1 16.9 m3
Struck 13.5 m3
Heaped SAE 1:1 20 m3


Forward 1 7.64 km/h
Forward 2 14.43 km/h
Forward 3 21.95 km/h
Forward 4 33.63 km/h
Forward 5 46.82 km/h
Forward 6 55.3 km/h
Reverse 1 8.48 km/h

Operating Weights

Front Axle - Empty 13980 kg
Center Axle - Empty 5960 kg
Rear Axle - Empty 5610 kg
Total - Empty 25550 kg
Front Axle - Rated Load 900 kg
Center Axle - Rated Load 13610 kg
Rear Axle - Rated Load 13610 kg
Total - Rated Load 28120 kg
Front Axle - Loaded 14880 kg
Center Axle - Loaded 19570 kg
Rear Axle - Loaded 19220 kg
Total - Loaded 53670 kg

Body Plate Thickness

Front 6 mm
Side 6 mm
Base 9 mm

Service Refill Capacities

Fuel Tank 360 L
Cooling System 86 L
Hydraulic System 125 L
Engine Crankcase 37 L
Transmission 36 L
Final Drives/Differential 132 L
Output Transfer Gear Box 18 L

Ejector Cycle Times

Eject Time 12 Seconds
Retract Time 15 Seconds

Sound Levels

Interior Cab 76 dB(A)


Brakes SAE J/ISO 3450:1998
Cab/FOPS SAE J231:JAN81 and ISO3449:1992 Level II
Cab/ROPS SAE J1040 May 1994 and ISO 3471:1994
Steering ISO 5010 1992E


Dump Clearance 905 mm
Wheel base between back tires 1700 mm

Cat C11 Engine with ACERT Technology

A combination of proven systems and innovative new technologies, ACERT engines optimize performance while meeting EPA Tier 3 and EU Stage 3a engine exhaust emissionregulations.

ACERT Technology

The C11 ACERT engine introduces a series of evolutionary, incremental improvements that provide breakthrough engine technology built on systems and components developed by Caterpillar with proven reliability. The technology capitalizes on Caterpillar expertise in four core engine systems: fuel, air, electronics and after treatment. ACERT technology is a unique and revolutionary systems solution that enables Cat engines to meet today’s clean air regulations, thus establishing the building blocks for attaining tomorrow’s more stringent standards.

C11 Block

The one-piece, gray iron block features generous ribbing for stiffness and heavy bearing bulkheads for rigidity and strength as the crankshaft turns. Straight O-ring connection points reduce the loss of engine oil and fluids.

Cylinder Head and Piston Technology

The C11 has a cross-flow cylinder head with refined port geometry, which improves breathing and provides better combustion. The Monotherm/steel pistons have a forged steel design, which offers high strength, light weight and tighter tolerances. The result is better oil control, minimal blow-by and long liner life.

Advanced Diesel Engine Management (ADEM) A4 Engine Controller

The ADEM A4 electronic control module manages fuel delivery to get the best performance per liter or gallon of fuel used. The engine management system provides flexible fuel mapping, allowing the engine to respond quickly to varying application needs. It tracks engine and machine conditions while keeping the engine operating at peak efficiency.

Fuel Delivery

Multiple injection fuel delivery involves a high degree of precision. Precisely shaping the combustion cycle lowers combustion chamber temperatures, generating fewer emissions and optimizing fuel combustion. This translates into more work output for your fuel cost.

Noise Reduction Technologies

Noise reduction has been achieved through design changes to the isolated top cover, oil pan, multiple injection strategy, insulated timing case cover, sculpted crankcase and gear train refinements.

Performance and Productivity – Power Train

Integrated power train with more power, greater performance and lower fuel consumption – the power to do more work.

Mechanically Actuated Electronic Unit Injection (MEUI)

A highly evolved fuel system with a proven record of reliability in the field. It combines the technical advancement of an electronic control system with the simplicity of direct mechanically controlled unit fuel injection. It excels in its ability to control injection pressure over the entire engine operating speed range. These features allow the C11 to have complete control over injection timing, duration, and pressure.

Air-to-Air Aftercooling (ATAAC)

ATAAC keeps air intake temperatures down and, in concert with the tight tolerance combustion chamber components, maximizes fuel efficiency and minimizes emissions. Significant improvements in airflow are generated by a turbocharger, unique cross-flow head and a single overhead camshaft.

Wastegate Turbocharging

Single wastegate turbocharger provides higher boost over a wide range, outstanding low-end performance with improved peak torque and enhanced engine response.

Electronic Transmission

The Caterpillar six-speed electronically controlled transmission is designed specifically for the articulated truck and its applications. It features anti-hunt shift strategy for speed continuity.

Controlled Throttle Shifting (CTS)

Significantly reduces power train stress and clutch wear by controlling engine speed, torque converter lock-up and transmission clutch engagements.


Integral retarder with high-power density design. Due to its compact size, the unit quickly fills with oil, providing more retarding power and fast response times.

Usable Rimpull

Power train components work together to offer more usable rimpull at higher speeds on effective grades. In first gear, the torque converter overcomes grade resistance by sending more torque to the wheels and preventing engine lugging. On downhill grades, the retarder acts like a brake by slowing the machine.

Hydraulic Fan

The remote-mounted hydraulic fan is temperature sensitive providing variable speeds when needed, which minimizes power requirements. The result is more power to the ground and faster cycle times.

Performance and Productivity – Suspension and Traction Control

Suspension systems and traction control – delivering power to the ground in all conditions.

Front Suspension

The three-point front suspension permits the axle to oscillate ±6°, softening impact loads on structures and components and providing a smooth ride, so the operator can travel at speed over rough terrain.

Rear Suspension

Features a walking beam geometry with Caterpillar designed rear suspension mounts which provide a reliable and stable ride for excellent load retention.

Traction Control

The traction control system is comprised of a wet clutched inter-axle differential and wet clutched cross-axle differentials. All differentials can be engaged and disengaged on-the-go for maximum versatility. When used together, the differentials provide 100 percent driveline locking.

Inter-Axle Differential Lock

Locks all three axles in unison and modifies torque distribution for excellent traction in poor underfoot conditions and on grades. It is operated by a switch located at the footrest.

Cross-Axle Differential Locks

Provides full driveline locking – all three axles and all six wheels – for maximum performance in the most adverse conditions. Acts in unison with the inter-axle differential lock when the footswitch is actuated and the dash-mounted switch is selected.

Exhaust Heat System

The body comes exhaust heat ready.

Steering System

Cat articulated trucks use a load-sensing steering system for smooth, precise control. It features a single, variable displacement pump. Two double-acting, cushioned steer cylinders allow the machine to articulate 45° to the left or right, permitting precise positioning in tight areas. Its compact Hand Metering Unit controls the cylinders for responsive steering and performance. An electronic secondary steering system is standard.

Performance and Productivity – Ejector

Designed to disperse the load on-the-go for faster cycle times and lower spreading costs.


The 730 Ejector is designed to disperse the load on-the-go for faster cycle times and lower spreading costs. The ejector body also offers clean load ejection and the capability to work in areas with restricted overhead clearance and soft underfoot conditions.


The 730 Ejector is based on the standard 730 Articulated Truck and shares all its versatility. Similar in design to the well proven 740 Ejector model, the 730 Ejector can operate in the same conditions. The 730 Ejector offers a number of unique capabilities that stretches the operation envelope.


The truck can eject the material and spread it out while moving, reducing the size of additional spreading and dozing equipment. This makes the 730 Ejector an ideal solution for road building and landfill applications. On-the-go ejecting results in faster cycle times and reduced power train loads.


Ejecting the load without raising the body increases stability, allowing load dispersal on inclines, side slopes, and in very soft underfoot conditions such as landfill sites. Generally, these conditions would be unacceptable with a conventional truck, but are ideal for the 730 Ejector.

Overhead Clearance

Because the body is not raised when ejecting the load, the truck can be utilized in areas with reduced overhead clearance such as when working around overhead lines, conveyors, hoppers and bridges. The ejector is also ideal for tunneling and underground operations.


The design of the ejector is inherently self-cleaning and practically eliminates material sticking to the body, which increases productivity, improves fuel efficiency and lowers cost per ton.


Reinforced body is made from thick high-yield, heat-treated Brinell hardened steel (Brinell 450 on the base and Brinell 400 on the sides) that provides exceptional durability. Ejector top rails are made from high-strength alloy steel. For optimum durability and wear life, the ejector body is designed to work in applications where the material consists of rocks smaller than 152 mm (6 in.) in diameter.


The ejector blade is made from high-strength steel and uses technology similar to that proven in Cat wheel tractor-scrapers.


A three-stage, high-speed, double-acting cylinder is specifically designed for horizontal mounting and provides smooth load ejection. It is centrally supported and nitride-hardened to ensure a long service life.

Proven Technology

Much of the 730 Ejector design is carried over from the standard Cat 730 Articulated Truck.

Durability and Reliability

High availability leads to high productivity. Excellent durability keeps ownership costs low.

Front Frame

The front frame design features a large box section and wide, stiff frame beams to handle torque loads. The divergent frame design decreases stress in the hitch area and optimizes suspension geometry. The frame design makes maximum use of robotic welding for increased durability.

Rear Frame

Twin-box construction minimizes stress concentrations and provides low weight with long life.


Front and rear frames make extensive use of heavy-duty steel castings.


Provides unparalleled ride quality and protects the truck from the most adverse road conditions by absorbing shock loads that would otherwise reach the frame.

Articulating/Oscillating Hitch

The articulating hitch provides the truck with steering articulation, and the oscillation ensures all-wheel ground contact in rough terrain.

Steer Cylinders In-Line with Hitch

Steering cylinders are in-line with the hitch, minimizing steer loads and stress in the hitch area.

Hitch Construction

Two-piece bolted hitch features a strong, durable cast steel head bolted to a hard wearing forged steel tube. The hitch tube has large hardened bearing areas and a hardened thrust face for reduced maintenance and longer life.

Service Brakes

Features a dual-circuit, all-wheel braking system. Full-power hydraulic system actuates self-cleaning caliper disc brakes with independent front and rear circuits and accumulators.

Parking Brake

Located on the center axle in an elevated position out of the dirt and designed to deliver higher heat capacity and abuse resistance.

Cat Power Train Components

The 730 Ejector features purpose-designed earthmoving components from the engine through to the final drives. Proven in articulated trucks and other Cat equipment, these rugged building blocks ensure long life and reliability.

Radiator Protection

The radiator is located behind the cab for excellent visibility. This design incorporates three levels of protection:

Operator Comfort

The operator’s office – high productivity from a comfortable, motivated operator.

Ride Comfort

The three-point front suspension with its oscillating axle and low-pressure ride struts, combined with the center-mounted cab, offers unrivaled levels of ride comfort for the operator in all driving conditions. The operator remains comfortable and productive throughout the day.

Spacious Two-Person Cab

The 730 Ejector features a large two-person cab, offering comfortable working space for both the operator and trainer or trainee. All 700 Family articulated trucks use the same spacious cab design.

Air Suspension Seat

The air suspension seat enhances operator comfort with a cushioned upper high back, adjustable damping with three settings, ride zone indicator and adjustable lumbar settings. It is fully adjustable to provide the optimal driving position.

Storage Space

Plenty of storage space to create a safe, secure and uncluttered working environment.

Trainer Seat

Full-size trainer seat features a fully padded seat with a backrest and a wide, retractable seatbelt for a secure and comfortable ride. The trainer seat is positioned next to the operator seat, giving both the operator and trainer a clear view of the instrument panel, controls and the road.

Heating/Ventilation/Air Conditioning

Twelve vents provide air distribution to keep the operator comfortable and to provide rapid defrosting of all windows. Heating, air conditioning and defrosting are standard. The recirculation filter is positioned for easy servicing.

Radiator Mounting

The radiator is mounted at an angle to prevent heat transfer to the cab.

Dual-Sliding Window

The right-hand window is a dual-sliding window. Opening this window with the left rear-hinged window provides cross-flow ventilation and enhanced operator comfort.

Sound Levels

Cab mounts are designed to reduce noise and vibration in the cab. All connections to the cab are resiliently mounted. The operator’s station makes extensive use of sound-absorbing and barrier materials to keep sound levels low.

Steering Column

A comfortable driving position is provided by a telescopic and tilt steering column.

Ease of Operation

Designed for simple, easy operation, the 730 Ejector allows the operator to focus on production.

Ergonomic Layout

The controls and layout of the cab are designed to make it as easy to operate as your car. Quick, easy to read and simple to operate, the controls and gauges allow the operator to concentrate on production.


The Generation II wrap-around dash puts all controls within easy reach of the operator. Featuring LED illuminated rocker switches, large LCD display and a rear wash wipe rocker switch. It provides an automotive feel with the industrial strength you would expect from Caterpillar.

Viewing Area

The low sloping hood and placement of the cooling package behind the cab give the operator excellent all-around visibility. The large glass area and central operator position also provide excellent visibility.


The wet arm wiper system cleans more glass area and is bottom-mounted to keep it out of the operator’s line of sight. Windows are tinted to reduce glare.

Differential Lock Controls

The inter-axle differential lock is engaged/disengaged by using a raised switch incorporated into the drivers foot rest, for ease of operation. For 100% lock up, all three cross-axle differential locks act in unison with the inter-axle differential lock when the foot switch is activated and a dash mounted switch is selected. Disengaging the foot switch opens all differential locks immediately.

Dash-Mounted Switch

A dash-mounted switch is all that is required to select full driveline lock-up.

Transmission and Ejector Levers

Finger tip controls allow easy operation and low effort. The ejector and transmission levers are positioned for easy, comfortable operation, along with the control for top gear limit, transmission hold and neutral lock.

Blade Retraction Sequence

The ejector blade returns to the loading position as soon as the blade retract sequence is initiated. The transmission is held in the gear selected for the ejecting cycle until this sequence is completed and the ejector control lever is returned to the float position.

Suspended Pedals

Easy to operate and reach with plenty of leg and foot room. Suspended pedals also make it easier to clean the cab floor by keeping the pedals out of the dirt.

Cat 2S Monitoring System

Provides an improved method of monitoring critical machine functions and alerts the operator to an immediate or impending problem. The system provides four levels of warning:


More time on production, less time and money spent on servicing.

Long Service Intervals

Long engine oil change and hydraulic oil change intervals lower maintenance costs and downtime. Wheel bearing adjustment is completely eliminated.

Lube Points

Lube points are grouped at the rear of the front frame and the front of the rear frame. Universal joints are lubed for life, eliminating servicing. Autolube is optional.

Service Points

Engine and transmission dipstick and fill caps, air and fuel filters, and fuel priming pump are all mounted on the left side of the engine under the hood. Coolant level indicator and fill cap are outside the cab.


The radiator package is located behind the cab, which provides protection from frontal impacts and offers access to both inlet and outlet sides of the radiator.

Extended Life Coolant

Extends the change interval and improves water pump life by reducing aluminum corrosion.


The hood is raised and lowered electrically, requiring minimal operator effort when servicing.

Electrical Service Center

Located inside the cab, this service center provides a power port, diagnostic connector and Cat Data Link connector.

Cat Data Link Connector

Provides a connection point for a laptop computer running Electronic Technician (ET) software. The Cat Data Link port performs programming functions on all electronic controls.

Service Access

The cab tilts to the side to provide easy access underneath, which simplifies servicing of the transmission, drive shafts and hydraulic pumps. Machine electrical and hydraulic interfaces are located on the right side of the cab, behind a removable cab body panel.

Truck Transport

The suspension system design eliminates the need to lower the suspension when transporting the truck, reducing maintenance and downtime.

Output Transfer Gear

Provides lubrication of all bearings and clutches using a distributed-pressure lubricated and filtered system. Good lubrication translates into less service and repair.

Complete Customer Support

Cat dealer services help you operate longer with lower costs.


Make detailed comparisons of the machines you are considering before you buy. What are the job requirements, machine attachments and operating hours? What is your need for machine availability and do you have the proper loading tool match? Your Cat dealer can help.


For the best operating techniques to increase productivity and your profit, turn to your Cat dealer for the latest training literature and trained staff.


Repair option programs guarantee the cost of repairs up front. Diagnostic programs such as S·O·SSM and Technical Analysis help you avoid unscheduled repairs.


Repair or rebuild? Cat articulated trucks are designed for longer life with rebuildable components. Your Cat dealer can help you evaluate the cost involved so you can make the right choice.

Product Support

The 730 Ejector offers easy maintenance with combined service points and extended service intervals to keep the machine running longer. Your local Cat dealership will be with you every step of the way with its unsurpassed worldwide parts support, trained technicians and customer support agreements.


Your local Cat dealer is there to support and protect you. Extended warranty options are also available.


For more complete information on Cat products, dealer services and industry solutions, visit us on the Web at www.Cat.com.
  • Air conditioning with R134A refrigerant
    • Air vents, adjustable
      • Auto shift six-speed transmission
        • Back up alarm
          • Body, adapted for exhaust heat
            • Body including:
              •  Ejector cylinder and blade with integrated spill plate
            • Cat C11 engine with ACERT Technology
              • CD/Radio ready
                • Differentials, standard with clutched cross-axle differential locks for all axles
                  • Dual circuit caliper disc brakes – all wheels
                    • Electrical system, 24 volt, 5A 24- to 12-volt converter
                      • Electro hydraulic hoist control
                        • Ether starting aid
                          • Glass windows, laminated and tinted (front), toughened and tinted (rear)
                            • Guards: rear window, radiator, crankcase and axle
                              • Headlights, four
                                • Heater and defroster with four-speed fan
                                  • Horn, electric
                                    • Lights: cab interior, front, side, rear, two reversing/working lights, two stop/tail lights, front and rear direction indicators
                                      • Mirrors, main and auxiliary, left and right
                                        • Mud flaps, wheel arch and body mounted, with transportation tie backs
                                          • Retarder
                                            • ROPS/FOPS cab, with full instrumentation, including:
                                              •  - Instrument cluster display module
                                              •  - Indicator lamps: left turn, secondary steering, primary steering loss, front and rear brake temp (735/740 and 740 Ejector only), brake oil pressure, action lamp, transmission fault, park brake, charging system status, differential lock, body not in float
                                              •  - Gauges: engine oil pressure, engine coolant temperature, torque converter oil temperature, fuel level, and fuel tank level gauge
                                              •  - Meters: service hour meter, speedometer, tachometer.
                                            • Seat, fully adjustable air suspension
                                              • Seat, padded companion/trainer
                                                • Seat belts, two retractable
                                                  • Secondary steering – electronic
                                                    • SOSSM sampling valves
                                                      • Spill guard front, integral part of fabricated body
                                                        • Starting receptacle, electric, remote
                                                          • Storage: two cup holders, flask receptacle, under seat storage, door pocket, behind seat storage, coat hook
                                                            • Sun visor
                                                              • Tailgate, hydraulic automatic
                                                                • Three axle, six-wheel drive
                                                                  • Tilt and telescopic steering wheel
                                                                    • Tires, six 750/65/R25, radial
                                                                      • Tow pins front and rear
                                                                        • Vandalism protection: lockable caps for fuel tank and hydraulic oil tank
                                                                          • Windows, opening side, tinted
                                                                            • Windshield wiper and washer, two speed, intermittent (front)
                                                                              • Windshield wiper and washer, two speed (rear)
                                                                                • Autolube installation for automatic greasing of bearings
                                                                                  • Caterpillar Work Area Vision System (WAVS) rear-view camera
                                                                                    • CD/Radio, heavy duty
                                                                                      • Cold weather start attachment
                                                                                        • Cycle counter/operator monitoring kit
                                                                                          • Exhaust heated body
                                                                                            • Fast fuel fill
                                                                                              • Flashing Xenon Beacon
                                                                                                • Heated rear-view mirrors
                                                                                                  • Product Link, Radio and Worldwide

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