Cat® C6.6 ACERT™ EngineThe Cat C6.6 ACERT engine delivers more horsepower using significantly less fuel than the previous series engine.
Emissions SolutionEquipped to meet U.S. EPA Tier 4 Interim emission standards, the 320E’s C6.6 ACERT engine features an aftertreatment regeneration solution that requires no operator intervention. The regeneration process automatically starts once the filtering system reaches a certain level – with no interruption to machine performance or the work process.
Biodiesel-Ready Fuel SystemThe C6.6 ACERT engine is equipped with an electronic-controlled high-pressure fuel system that includes an electric priming pump and three-layer fuel hoses to allow the use of biodiesel (meeting ASTM 6751 or EN 14214) up to B20 (biodiesel 20% mixture).
Cooling SystemThe cooling system features an air-to-air aftercooler and A/C condenser that tilt up and swing out of the way for easy servicing; the viscous fan automatically adjusts to ambient temperatures to help reduce fuel consumption and noise.
Speed and Power ControlThe 320E features speed control to maintain a constant speed – regardless of load – to improve fuel economy. Three different power modes are offered: high power, standard power, and economy power. The operator can easily change between modes through the monitor or console switch to meet the needs for the job at hand – all to help manage and conserve fuel.
Engine Reduced emissions, economical and reliable performance » Learn More
SeatsThe seat range includes air suspension, heated, options. All seats include a reclining back, upper and lower seat slide adjustments, and height and tilt angle adjustments to meet operator needs for comfort and productivity.
ControlsThe right and left joystick consoles (1) can be adjusted to meet individual preferences, improving operator comfort and productivity during the course of a day. With the touch of a button, one-touch idle reduces engine speed to help save fuel; touch it again or move the joystick and the machine returns to normal operating level.
MonitorThe 320E is equipped with a 7" LCD (Liquid Crystal Display) monitor (2) that’s 40% bigger than the previous model’s with higher resolution for better visibility. In addition to an improved keypad and added functionality, it’s programmable to provide information in a choice of 42 languages to support today’s diverse workforce.
An “Engine Shutdown Setting” accessible through the monitor allows owners and operators to specify how long the machine should idle before shutting down the engine, which can save significant amounts of fuel.
The image of the rearview camera is displayed directly on the monitor. Up to two different camera images can be displayed on the screen.
Power SupplyTwo 12-volt power supply sockets are located near key storage areas for charging electronic devices.
StorageStorage spaces are located in the front, rear, and side consoles. A specific space near the auxiliary power supply holds MP3 players and cell phones. The drink holder accommodates large mugs with handles, and a shelf behind the seat stores large lunch or toolboxes.
Automatic Climate ControlThe climate control system features five air outlets with positive filtered ventilation, which makes working in the heat and cold much more pleasant.
Operator Station Comfort and convenience to keep people productive » Learn More
Hydraulic HorsepowerHydraulic horsepower is the actual machine power available to do work through implements and work tools. It’s much more than just the engine power under the hood – it’s a core strength that differentiates Cat machines from other brands.
Main Control and Auxiliary ValvesThe 320E uses a high-pressure hydraulic system to tackle the toughest of work in short order. A highly efficient and simple back-to-back main control valve improves fuel consumption and allows for greater tool versatility.
Electric Boom Regeneration ValveThis valve minimizes pump flow when the boom lowers down, which helps improve fuel efficiency. It is optimized for any dial speed setting being used by the operator, which results in enhanced boom lowering speed for greater controllability.
Heavy LiftThe 320E features a heavy lift mode, which increases machine system pressure to improve lift over the front of the machine – a nice benefit in challenging situations. The system’s pressure increase combined with a reduction in engine speed and heavier counterweight option give operators better control when lifting robust objects like concrete pipe and road construction barriers.
Hydraulics Power to move more dirt, rock, and debris with speed and precision » Learn More
FrameThe upper frame includes reinforced mountings to support the Roll-Over Protective Structure (ROPS) cab; the lower frame is reinforced to increase component durability.
UndercarriageFixed gauge long undercarriage systems are available to support various work applications. Heavy-duty track rollers, precision-forged carrier rollers, press-fit pin master joints, and enhanced track shoe bolts improve durability and reduce the risk of machine downtime and the need and cost to replace components. Also, a segmented two-piece guiding guard is now offered to help maintain track alignment and improve performance in multiple applications.
CounterweightsThree counterweight options are available: 3.55 mt (3.9 ton), 4.6 mt (5.1 ton) for super long reach, and 5.4 mt (5.9 ton) for heavy counterweight configuration. Integrated links enable easy removal of the counterweight for maintenance or shipping.
Structures & Undercarriage
Booms and SticksThe 320E is offered with a range of booms and sticks (see list below). Each is built with internal baffle plates for added durability, and each undergoes ultrasound inspection to ensure weld quality and reliability.
Large box-section structures with thick, multi-plate fabrications, castings, and forgings are used in high-stress areas such as the boom nose, boom foot, boom cylinder, and stick foot to improve durability.
The boom nose pin retention method is a durable captured flag design. Boom durability is improved with a number of plate thickness changes. Also, the front linkage pins’ inner bearing surfaces are welded, and a self-lubricated bearing is used to extend service intervals and increase uptime.
SelectionsThere are three basic boom options: HD, ES, and SLR. Sticks match the boom descriptions and applications below: - HD = Heavy Duty – This type of boom is designed to balance reach, digging force, and bucket capacity. It covers the vast majority of applications such as digging, loading, trenching, and working with hydraulic tools.
- ES = Extreme Service – This type of boom is best used for demolition or extreme applications where stress loads on the boom are increased. It should be used for demanding, harsh applications like 100% rock and extensive hammer use.
- SLR = Super Long Reach – This front offers reaches to over 51 feet. It is well suited for ditch cleaning applications.
Front Linkage Made for high stress and long service life » Learn More
An extensive range of Cat Work Tools for the 320E includes buckets, compactors, contractors’ grapples, trash grapples, scrap and demolition shears, pulverizers, hammers and thumbs. Each is designed to optimize the versatility and performance of your machine.
Quick CouplersQuick couplers allow one person to change work tools in seconds for maximum performance and flexibility on a job site. One machine can move rapidly from task to task, and a fleet of similarly equipped machines can share a common work tool inventory.
Cat Center-Lock™ Pin Grabber CouplerCenter-Lock is the pin grabber style coupler featuring a patented locking system. A highly visible lock clearly shows the operator when the coupler is engaged or disengaged from the bucket or work tool.
BucketsCat buckets are designed as an integral part of the 320E and feature new geometry for better performance. The leading edge has been pushed forward, resulting in more efficient filling and better operator control for greatly improved productivity. Wear coverage in the corners and side cutter and sidebar protector coverage are improved. All benefits are captured in a new bucket line with a new bucket naming convention.
Caterpillar offers standard bucket categories for excavators. Each category is based on intended bucket durability when used in recommended application and material. Buckets are available as pin-on or can be used with a quick coupler.
General Duty (GD)GD buckets are for digging in low-impact, low-abrasion material such as dirt, loam, and mixed compositions of dirt and fine gravel.
Heavy Duty (HD)The most popular bucket style, HD buckets are a good starting point when digging conditions are not well known like a wide range of impact and abrasion conditions that include mixed dirt, clay, and rock.
Severe Duty (SD)SD buckets are for higher abrasion conditions such as well shot granite and caliche. Red area on bucket image illustrates additional protection against wear as compared to a GD bucket.
Specialty BucketsIn addition to the standard four bucket categories, specialty bucket styles are available for the 320E, each with a different purpose: - Ditch Cleaning buckets for cleaning ditches, slope grading, and other finish work.
- Center-Lock Pin Grabber Performance buckets for maximum digging performance while keeping the versatility and convenience of a coupler.
- Wide Tip buckets for low impact material where leaving a smoother floor and minimal spillage are necessary.
Hydraulic KitsCaterpillar offers field-installed hydraulic kits that are uniquely designed to integrate Cat Work Tool attachments with Cat Excavators. Hoses and tubes are pre-made, pre-shaped, and pre-painted to make installation quick and easy.
Comprehensive Product SupportAll Cat Work Tools are backed up by a world-wide network of well-stocked parts depots and highly experienced service and support personnel.
Work Tools Dig, hammer, rip, and cut with confidence » Learn More
Cat® Grade Control Depth and SlopeThis optional system combines traditional machine control and guidance with standard factory-installed and calibrated components, making the system ready to go to work the moment it leaves the factory. The system utilizes internal front linkage sensors – well protected from the harsh working environment – to give operators real-time bucket tip position information through the cab monitor (1), which minimizes the need and cost for traditional grade checking and improves job site safety. It also helps the operator complete jobs in fewer cycles, which means less fuel use. Cat dealers can upgrade the system to full three-dimensional control by adding proven Cat AccuGrade™ positioning technologies, including GPS and Universal Total Station (UTS).
Cat Product LinkThis optional system is deeply integrated into the machine monitoring system and is designed to help customers improve their overall fleet management effectiveness. Events and diagnostic codes as well as hours, fuel consumption, idle time, machine location, and other detailed information are transmitted to a secure web based application (2 and 3) called VisionLink™, which uses powerful tools to communicate to users and dealers.
Integrated Technologies Solutions that make work easier and more efficient » Learn More
Service DoorsWide service doors and a one-piece hood (1) provide easy access to the engine and cooling compartments. Both doors and hood feature enhanced hardware and a new screen design to help minimize debris entry.
CompartmentsThe pump (2), radiator (3), and air cleaner compartments provide ample access to major components and regular service items like fuel and oil filters. The fresh air filter is located on the side of the cab to make it easy to reach and replace as needed. A tilt-up ATAAC and swing-out A/C condenser make cleaning cores a much easier task to perform.
Other Service EnhancementsThe water separator with water level sensor has a primary fuel filter element located in the pump compartment near ground level.
The electric priming pump is mounted before the primary filter base and is easy to service compared to a traditional hand-priming pump.
The fuel tank features a remote drain cock located in the pump compartment to make it easy to remove water and sediment during maintenance.
The engine oil check gauge is situated in front of the engine compartment for easy access, and a uniquely designed drain cock helps prevent spills.
Hydraulic lash adjusters automatically adjust valve opening and closing events to help reduce fuel consumption and engine noise. They also eliminate the need for a valve lash, which reduces maintenance for the customer.
ROPS CabThe ROPS-certified cab allows a Falling Object Guard Structure (FOGS) to be bolted directly to it.
Sound ProofingImproved sealing and cab roof lining lower noise levels by 5 dB inside the cab – a significant benefit to operators.
Anti-Skid PlatesThe surface of the upper structure and the top of the storage box area are covered with anti-skid plates to help prevent service personnel and operators from slipping during maintenance.
Steps, Hand and Guard RailsSteps (1) on the track frame and storage box along with extended hand (2) and guard rails to the upper deck enable operators to securely work on the machine.
Time Delay Cab and Boom LightsAfter the engine start key has been turned to the “OFF” position, lights will be illuminated to enhance visibility. The time delay can vary from 0 to 90 seconds, which can be set through the monitor.
High Intensity Discharge (HID) LightsCab lights can be upgraded to HID for greater visibility.
WindowsTwo windshield options are available: The 70/30 split configuration features an upper window equipped with handles on the top and both sides so the operator can slide it to store in the ceiling. The lower window is removable and can be stored on the left wall of the cab shell.
The large skylight provides great overhead visibility, excellent natural lighting, and good ventilation. The skylight can be opened completely to become an emergency exit.
Monitor Warning SystemThe machine’s advanced diagnostic system features a buzzer in the monitor to communicate to operators critical events like full filters or low hydraulic fluid levels so they can take immediate action.
Rearview CameraThe standard rearview camera (3) is housed in the counterweight. The image projects through the cab monitor to give the operator a clear view of what is behind the machine.
Product SupportCat dealers utilize a worldwide parts network to maximize your machines’ uptime. Plus they can help you save money with Cat remanufactured components.
Machine SelectionWhat are the job requirements and machine attachments? What production is needed? Your Cat dealer can provide recommendations to help you make the right machine choices.
PurchaseConsider financing options and day-to-day operating costs. Look at dealer services that can be included in the machine’s cost to yield lower owning and operating costs over time.
Customer Support AgreementsCat dealers offer a variety of customer support agreements and work with you to develop a plan to meet your specific needs. These plans can cover the entire machine, including attachments, to help protect your investment.
OperationImproving operating techniques can boost your profits. Your Cat dealer has videos, literature, and other ideas to help you increase productivity. Caterpillar also offers simulators and certified operator training to help maximize the return on your investment.
ReplacementRepair, rebuild, or replace? Your Cat dealer can help you evaluate the cost involved so you can make the best choice for your business.
- The C6.6 ACERT engine, along with the Cat Clean Emissions Module (CEM), meets U.S. Tier 4 Interim emission standards.
- The 320E has the flexibility of running on either ultra-low-sulfur diesel (ULSD) fuel with 15 ppm of sulfur or less or biodiesel (B20) fuel blended with ULSD that meets ASTM 6751 or EN 14214 standards.
- Even when operating in high horsepower and high production applications, the 320E performs a similar amount of work as the previous D Series model with significantly reduced fuel consumption.
- The 320E is quieter inside and out, which benefits operators and the surrounding environment.
- An overfill indicator rises when the fuel tank is full to help the operator avoid spilling.
- The QuickEvac™ option ensures fast, easy, and secure changing of engine and hydraulic oil.
- The 320E is built to be rebuilt with major structures and components capable of being remanufactured to reduce waste and replacement costs.
- An eco-friendly engine oil filter eliminates the need for painted metal cans and aluminum top plates. The cartridge-style spin-on housing enables the internal filter to be separated and replaced; the used internal element can be incinerated to help reduce waste.
- The 320E is an efficient, productive machine that’s designed to conserve our natural resources for generations ahead.
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