The Cat® D Series Material Handlers incorporate innovations for improved performance and versatility. Increased lifting capacity, improved cycle times and ease of operation lead to increased productivity and lower operating costs.
Engine Model | Cat® C6.6 with ACERT™ Technology |
Operating Weight | 19 000 to 22 700 kg (41,888 to 50,045 lb) |
Maximum Travel Speed | — |
Engine Model | Cat® C6.6 with ACERT™ Technology |
Ratings | — |
Displacement | — |
Net Power - ISO 9249 | — |
Gross Power | — |
Bore | — |
Net Power - EEC 80/1269 | — |
Stroke | — |
Cylinders | 6 |
Maximum Torque - 1,400 rpm | — |
Maximum Pressure - Auxiliary Circuit - Medium Pressure | — |
System | — |
Maximum Pressure - Implement Circuit - Heavy Lift | — |
Maximum Pressure - Auxiliary Circuit - High Pressure | — |
Maximum Pressure - Implement Circuit - Normal | — |
Tank Capacity | — |
Maximum Flow - Auxiliary Circuit - High Pressure | — |
Maximum Pressure - Travel Circuit | — |
Maximum Flow - Implement/Travel Circuit | — |
Maximum Pressure - Swing Mechanism | — |
Maximum Flow - Auxiliary Circuit - Medium Pressure | — |
Maximum Flow - Swing Mechanism | — |
Operating Weight | 19 000 to 22 700 kg (41,888 to 50,045 lb) |
Sticks - Industrial | — |
One-Piece Boom - Front and Rear Outriggers - With MH Undercarriage | — |
One-Piece Boom - Rear Dozer, Front Outriggers | — |
Outriggers | — |
Counterweights - Standard | — |
MH Boom - Front and Rear Outriggers - With MH Undercarriage | — |
MH Boom - Front and Rear Outriggers - With MH Undercarriage and Push Blade | — |
Sticks - Digging Long | — |
Dozer Blade | — |
VA Boom - Front and Rear Outriggers | — |
MH Push Blade - With MH Undercarriage | — |
MH Boom - Front and Rear Outriggers | — |
One-Piece Boom - Front and Rear Outriggers | — |
VA Boom - Front and Rear Outriggers - With MH Undercarriage and Push Blade | — |
One-Piece Boom - Front and Rear Outriggers - With MH Undercarriage and Push Blade | — |
VA Boom - Front and Rear Outriggers - With MH Undercarriage | — |
MH Boom - Rear Dozer Only | — |
Sticks - MH Straight | — |
One-Piece Boom - Rear Dozer Only | — |
VA Boom - Rear Dozer Only | — |
VA Boom - Rear Dozer, Front Outriggers | — |
MH Boom - Rear Dozer, Front Outriggers | — |
Sticks - Digging Short | — |
Sticks - Digging Medium | — |
Sticks - MH Drop Nose Short | — |
Swing Torque | — |
Swing Speed | — |
Final Drive | — |
Cooling | — |
Engine Crankcase | — |
Fuel Tank Capacity | — |
Front Steering Axle - Differential | — |
Rear Axle - Housing (Differential) | — |
Powershift Transmission | — |
Maximum Travel Speed | — |
Creeper Speed - 1st Gear | — |
Drawbar Pull | — |
Creeper Speed - 2nd Gear | — |
Forward/Reverse - 2nd Gear | — |
Forward/Reverse - 1st Gear | — |
Maximum Gradeability | 47% |
Ground Clearance | — |
Minimum Turning Radius - Standard Axle - End of One-Piece Boom | — |
Minimum Turning Radius - Standard Axle - End of VA Boom | — |
Minimum Turning Radius - Standard Axle - Outside of Tire | — |
Oscillation Axle Angle | ±6° |
Maximum Steering Angle | — |
Maximum Height - Stick Pin | — |
Maximum Reach - Stick Pin | — |
Standards | Standards |
Optional Tires | 10.00-20 (dual solid rubber); 11.00-20 (dual pneumatic) |
Exterior Sound | Exterior Sound |
The Cat® C6.6 engine with ACERT™ Technology introduces a series of evolutionary, incremental improvements that provide breakthrough engine performance. The building blocks of ACERT Technology are fuel delivery, air management and electronic control. ACERT Technology optimizes engine performance while meeting EPA Tier 3 engine emission regulations. The Cat C6.6 engine in the M318D MH delivers a maximum gross power of 130 kW (174 hp).
The Cat C6.6 engine is electronically controlled and uses the Cat Common Rail Fuel System and fuel pump. This combination provides outstanding fuel consumption during both production and travel. When the system recognizes roading application the engine will operate at the most efficient system operating point to save fuel without compromising road performance.
The Cat C6.6 design improves operator comfort by reducing sound and vibration.
An electronically controlled, hydraulic motor drives a variable speed on-demand fan for engine coolant and hydraulic oil. The optimum fan speed is determined based on coolant and hydraulic oil temperature resulting in reduced fuel consumption and lower sound levels. The electronic engine control continuously compensates for the varying fan load, providing consistent net power, regardless of operating conditions.
The two stage, one-touch Automatic Engine Speed Control reduces engine speed if no operation is performed, maximizing fuel efficiency and reducing sound levels.
D Series Material Handlers are able to offer fast stick and swing speeds, leading to more productivity.
A dedicated variable displacement piston pump and fixed displacement piston motor power the swing drive. This closed hydraulic circuit maximizes swing performance without reducing power to the other hydraulic functions, resulting in smoother combined movements.
This mode maximizes lifting performance by boosting the lifting capability of the material handler by 7%. Heavy loads can be easily moved in the full working range of the machine, maintaining excellent stability and speed.
Adjustable Hydraulic Sensitivity allows the operator to adjust the aggressiveness of the machine according to the application.
The Stick Regeneration Circuit increases efficiency and helps increase controllability for higher productivity and lower operating costs.
Caterpillar integrates its cylinder snubber technology into all Wheel Material Handler boom, stick and hydraulic cab riser cylinders. These snubbers help cushion shocks, reduce sound and increase cylinder life.
It allows the operator to fully concentrate on production. The unique Cat® SmartBoom™ significantly enhances operator comfort and job efficiency. Loading is more productive and more fuel efficient as the return cycle is reduced while the boom down function does not require pump flow.
The Material Handlers are designed for outstanding performance with high fuel efficiency. This means more work done in a day, less fuel consumed and minimal impact on our environment.
The Cat® C6.6 engine meets EPA Tier 3 emissions regulations while offering increased performance, reliability and reduced fuel consumption and sound levels.
Operator and spectator noise levels are extremely low as a result of the variable speed fan and remote cooling system.
The optional biodegradable hydraulic oil (Cat BIO HYDO Advanced HEES™) is formulated to provide excellent high-pressure and high temperature characteristics, and is fully compatible with all hydraulic components. Cat BIO HYDO Advanced HEES™ is fully decomposed by soil or water microorganisms, providing a more environmentally sound alternative to mineral-based oils.
Lubricant fillers and drains are designed to minimize spills. Cat O-Ring Face Seals, Cat XT™ Hose and hydraulic cylinders are all designed to help prevent fluid leaks that can reduce the machine performance and cause harm to the environment.
Working closely with your Cat dealer can help extend service intervals for engine oil, hydraulic oil, axle oil and coolant. Meaning fewer required fluids and fewer disposal, all adding up to lower operating costs.
Visibility and ergonomics are some of the many features of the D Series Material Handler Operator Station. The cab provides maximum space and is designed for simplicity and functionality. Frequently used switches are centralized and are situated on the right-hand switch console. The left-hand seat console controls the dozer blade and/or outriggers, and is tiltable for easy access to the cab. The fully automatic climate control adjusts temperature and air flow for exceptional operator comfort. Other features include a cigar lighter, ashtray, drink/bottle holder, magazine rack and integrated mobile phone holder.
The exterior design uses thick steel tubing along the bottom perimeter of the cab, improving the resistance to fatigue and vibration. This design allows the falling object guards to be bolted directly to the cab. Interior noise levels are substantially reduced due to the cab shell being attached to the frame with rubber mounts that limit vibration and sound transmitted from the frame.
Another feature is electrically heated mirrors, increasing safety and visibility in cold conditions.
The parallel wiper system maximizes visibility in poor weather conditions. The wiper virtually covers the entire front windshield, cleaning the operator's immediate line of sight.
The optional deluxe seat, equipped with an active seat climate system, improves operator comfort. Cooled air flows through the seat cushions to reduce body perspiration. On cold days, a two-step seat heater keeps the operator warm and comfortable. The fully adjustable seat with adjustable lumbar support automatically adjusts to the driver's weight providing a more relaxed and comfortable environment.
A large storage compartment is located behind the operator's seat. The compartment provides sufficient room to store items such as a lunch box. A cover secures the contents during machine operation.
Two-way pedals for travel and auxiliary circuits provide increased floor space, reducing the need to change positions. The foot pedal for auxiliary high-pressure circuit can be locked in the off position and used as a footrest for greater operator comfort.
The rearview camera displays on the operator monitor. Together with best-in-class visibility to the front, up, left and right, the rearview camera ensures the safe operation of the machine.
An optional Machine Security System is available from the factory. This system controls who can operate the machine when, and utilizes specific keys to prevent unauthorized machine use.
The bottom position is used for shipping and travel, allowing for safer transporting.
The top position raises the cab by 2400 mm (94.5 in). This provides optimal viewing for all material handling jobs.
The front axle offers wide oscillating and steering angles. The transmission is mounted directly on the rear axle for protection and optimum ground clearance.
The disc brake system acts directly on the hub instead of the drive shaft to avoid planetary gear backlash. This solution minimizes the rocking effect associated with working free on wheels.
The M318D MH driveline design effectively utilizes the engine torque and power to provide a comfortable ride with improved smoothness, hydraulic retarding, and gear shifting commonly used during travel between material handling jobs.
A compact undercarriage design provides the M318D MH with optimum ground clearance during travel.
The MH booms have been designed to handle increased lifting capacities. The stick range offers leading side plates to maximize the protection of hydraulic lines. The lines are fitted in between the two side plates offering protection from damage. Multiple boom and stick options allow you to pick the best match for your job.
A specially designed MH boom is available to meet the functionality requirements demanded in material handling applications. The boom arrangements include high pressure hydraulic lines for opening and closing functionality and medium pressure lines for implement rotation.
Two options of MH sticks are available for the M318D MH, all equipped with high and medium pressure auxiliary lines. The 4900 mm (193 in) Drop Nose Stick offers the reaching and lifting capabilities required for typical MH applications, while the 4200 mm (165 in) Straight Stick is the best solution for when additional work tool functionality is needed.
The M318D MH can be further outfitted with additional boom and stick options (see Optional Equipment), offering the ability to combine the material handler's hydraulic cab riser with traditional excavator functionality. This combination has been proven in transfer station, mining, and millyard applications.
Ten hydraulic pump flow and pressure settings can be preset within the monitor, eliminating the need to adjust the hydraulics each time a tool is changed.
The most common tool for material handling applications, this grapple is available in a range of sizes and provides a solution for a variety of material types.
The solid state generator set system is being introduced to enable the M318D MH to power scrap magnets up to 1448 mm (57 in) diameter as well as work with the popular orange peel grapples used in scrap handling. The versatility to work with either a magnet or grapple enables customers to use these machines in any part of their scrap yard application. The patented Caterpillar system provides unmatched performance, reliability, and versatility compared to competitors' equipment, keeping customer recycling operations more productive and profitable.
The unique joystick steering option enables an operator to reposition the machine while traveling in first gear by the use of the slider switch on the right joystick. This enables the operator to keep both hands on the joysticks while simultaneously moving the implements and traveling. The operator can do more precise work faster with increased safety around the machine.
Automatically engaged when the travel pedal is depressed this mode provides maximum speed, drawbar pull and best in class fuel efficiency.
Product Link allows remote monitoring of the machine, using a powerful telemetric system to transmit needed information to the customer and the dealer via a secure, web-based application, VisionLink™. Critical information, such as event and diagnostic codes, is readily accessible, as are machine statistics, such as hour-meter reading, fuel consumption and idle time. Mapping functions include location and geo-fencing, which assist in servicing operations and in preventing unauthorized machine use. With Product Link, the customer and the dealer have an invaluable tool for more efficiently managing machines and fleets.
Caterpillar designed its D Series Material Handlers with the operator and service technician in mind. Gull-wing doors, with pneumatically-assisted lift cylinders, effortlessly lift up to allow critical maintenance to be performed quickly and efficiently while maintaining operator safety.
The D Series Material Handler service and maintenance intervals have been extended to reduce machine service time, increase machine availability and reduce operating costs. Using S·O·SSM Scheduled Oil Sampling analysis, hydraulic oil change intervals can be extended up to 6,000 hours.
Cat engine oil is formulated to optimize engine life and performance. The specially formulated oil is more cost effective and increases engine oil change interval to 500 hours, providing industry leading performance and savings.
Cat air filters eliminate the use of service tools, reducing maintenance time. The air filter features a double-element construction with wall flow filtration in the main element and built-in mini-cyclone precleaners for superior cleaning efficiency. The air filters are constantly monitored for optimum performance. If airflow becomes restricted, a warning is displayed by the way of the in-cab monitor.
The hydraulic return filter, a capsule filter, prevents contaminants from entering the system when the hydraulic oil is changed.
Cat high efficiency fuel filters with a Stay-Clean Valve™ features a special media that removes more than 98% of particles, increasing fuel injector life. Both the primary and secondary fuel filters are located in the engine compartment and can be easily changed from ground level.
The D Series is equipped with a primary fuel filter with water separator located in the engine compartment. For ease of service, the water separator can be easily accessed from ground level.
The durable, corrosion-free tank has a remote drain located at the bottom of the upper frame to remove water and sediment. The tank drain with hose connection allows simple, spill-free fluid draining.
The front compartment hood can be opened vertically, providing outstanding ground level access to the batteries, air-to-air aftercooler, air conditioner condenser and the air cleaner filter.
The air conditioning condenser swings out horizontally to allow complete cleaning on both sides as well as excellent access to the air-to-air aftercooler.
Caterpillar has specially developed S·O·SSM Oil Sampling Analysis to help ensure better performance, longer life and increased customer satisfaction. This thorough and reliable early warning system detects traces of metals, dirt and other contaminants in your engine, axle and hydraulic oil. It can predict potential trouble avoiding costly failures. Your Cat dealer can give you results and specific recommendations shortly after receiving your sample.
The engine can be accessed from both ground level and the upper structure. The longitudinal layout ensures that all daily inspection items can be accessed from ground level.
They cover the top of the steps and upper structure to help prevent slipping during maintenance. The Anti-Skid plates reduce the accumulation of mud on the upper structure, improving the cleanliness and safety.
Flat fins on all coolers reduce clogging, making it easier to remove debris. The main cooling fan and air conditioner condenser are both hinged for easier cleaning.
For those hard to reach locations, remote greasing blocks for the swing bearing and front-end-attachments have been provided to reduce maintenance time. For the undercarriage, two remote blocks provide easy access for greasing the oscillating axle and, as an option, the dozer blade.
Large handrails and steps assist the operator in climbing on and off the machine.
Standard Light Emitting Diode (LED) rear lights provide increased visibility on the job site, higher durability and longer life.
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