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Overview

The Cat® 320 excavator brings premium performance with simple-to-use technologies like Cat GRADE with 2D, Grade Assist, and Payload — all standard equipment from the factory to boost your operator efficiencies up to 45%. Combine these features with a new cab, longer maintenance intervals that lower your maintenance costs up to 15%, and a power system that reduces fuel consumption by up to 20% and you have a low-cost-per-unit-of-production excavator that's perfect for medium- to heavy-duty applications.

Engine

Units:
Engine Model Cat C7.1 ACERT Cat C7.1 ACERT Less
Net Flywheel Power 117.0 kW 157.0 HP Less
Bore 4.0 in 105.0 mm Less
Stroke 5.0 in 135.0 mm Less
Displacement 428.0 in³ 7.01 l Less
Gross Power - SAE J1995 118.0 HP 158.0 kW Less
Net Power - SAE J1349 117.0 HP 157.0 kW Less
Engine RPM - Operation 1650.0 r/min 1650.0 r/min Less
Engine RPM - Travel 1800.0 r/min 1800.0 r/min Less

Weights

Maximum Operating Weight 48500.0 lb 22000.0 kg Less
Note (1) R5.7 (18'8") HD Boom, R2.9 (9'6") HD Stick, GD 1.0 m3 (1.31 yd3) bucket and 600 mm (24") TG track shoes. 4.2 mt counterweight. R5.7 (18'8") HD Boom, R2.9 (9'6") HD Stick, GD 1.0 m3 (1.31 yd3) bucket and 600 mm (24") TG track shoes. 4.2 mt counterweight. Less
Note (2) Super long Reach Boom, super long reach stick, GD 0.53 m3 (0.69 yd3) bucket and 790 mm (31") TG track shoes, 4.7mt counterweight Super long Reach Boom, super long reach stick, GD 0.53 m3 (0.69 yd3) bucket and 790 mm (31") TG track shoes, 4.7mt counterweight Less

Service Refill Capacities

Fuel Tank Capacity 86.6 gal (US) 345.0 l Less
Cooling System 6.6 gal (US) 25.0 l Less
Engine Oil 6.6 gal (US) 25.0 l Less
Final Drive - Each 1.3 gal (US) 5.0 l Less
Hydraulic System - Including Tank 61.8 gal (US) 234.0 l Less
Hydraulic Tank 30.4 gal (US) 115.0 l Less
Swing Drive - Each 1.3 gal (US) 5.0 l Less

Swing

Maximum Swing Torque 54440.0 lb/ft 74.0 kN·m Less
Swing Speed 11.25 r/min 11.25 r/min Less

Drive

Maximum Drawbar Pull 45996.0 lbf 205.0 kN Less
Maximum Travel Speed 3.5 mile/h 5.7 km/h Less
Maximum Gradeability 35°--70% 35°--70% Less

Hydraulic System

Main System - Maximum Flow - Total 113.0 gal/min 429.0 l/min Less
Maximum Pressure - Equipment - Normal 5075.0 psi 35000.0 kPa Less
Maximum Pressure - Swing 3886.0 psi 26800.0 kPa Less
Maximum Pressure - Travel 4974.0 psi 34300.0 kPa Less

Working Ranges - Reach Boom - 5.7 m (18'8"); R2.9 (9'6") Stick

Bucket Digging Force (ISO) 10.1 ft 3080.0 mm Less
Stick Digging Force (SAE) 12.0 ft 3650.0 mm Less
Maximum Cutting Height 30.7 ft 9370.0 mm Less
Maximum Depth Cut for 2440 mm (8'0") Level Bottom 21.5 ft 6550.0 mm Less
Maximum Digging Depth 22.0 ft 6720.0 mm Less
Maximum Loading Height 21.3 ft 6490.0 mm Less
Maximum Reach - Ground Level 32.3 ft 9860.0 mm Less
Maximum Vertical Wall Digging Depth 17.0 ft 5190.0 mm Less
Minimum Loading Height 7.1 ft 2170.0 mm Less

Dimensions - Reach Boom - 5.7 m (18'8"); R2.9 (9'6") Stick

Note (2) Reach boom as same dimensions as HD reach boom Reach boom as same dimensions as HD reach boom Less
Note (1) With GD 1.19 m3 (1.56 yd3) bucket and 790 mm (31") shoes. With GD 1.19 m3 (1.56 yd3) bucket and 790 mm (31") shoes. Less
Counterweight Clearance 3.4 ft 1050.0 mm Less
Shipping Height 9.7 ft 2960.0 mm Less
Shipping Length 31.3 ft 9530.0 mm Less
Track Gauge 7.8 ft 2380.0 mm Less
Track Length 14.6 ft 4450.0 mm Less
Transport Width - 600 mm (24 in) Shoes 9.8 ft 2980.0 mm Less
Transport Width - 790 mm (31 in) Shoes 10.4 ft 3170.0 mm Less

Dimensions - Reach Boom - 5.7 m (18'8"); R2.9 (9'6") Stick

Ground Clearance 1.5 ft 470.0 mm Less
Tail Swing Radius 9.3 ft 2830.0 mm Less

High Performance with Lower Fuel Consumption

  • Use up to 20% less fuel than the Cat 320D2 excavator.
  • Increase operator efficiency by up to 45% with a suite of Cat Connect technologies that lower operator fatigue and your operating costs, including fuel consumption and daily maintenance.
  • Match the excavator to the job using power modes; let Smart mode automatically match engine and hydraulic power to your working conditions.
  • The advanced hydraulic system provides the optimum balance of power and efficiency while giving you the control you need for your precise digging requirements.
  • Your joystick commands adjust pump flow based on valve priority putting hydraulic pressure and flow where it needs to go, giving you improved fast light- to medium-load cycle times.
  • The C7.1 ACERT engine can run on biodiesel up to B20 and meets Tier 3/Stage IIIA equivalent emission standards.
  • Auxiliary hydraulic options give you the versatility to use a range of Cat attachments.
  • Don't let the temperature stop you from working. The excavator has a standard ambient temperature capability of (46º C) 115º F and cold start capability of -18º C (0º F). An optional high-ambient (52º C) 125º F tempeature capability and -32º C (-25º F) cold start package are available.

Boost Efficiency and Boost Productivity with Integrated Cat Connect

  • Boost productivity up to 45% versus traditional grading with the standard Cat GRADE with 2D and Grade Assist system – includes indicate-only and laser capability.
    • Dig with real-time guidance on depth, slope, and horizontal distance to grade using the standard high-resolution 203 mm touchscreen monitor.
    • The 2D system is upgradable to Cat GRADE with Advanced 2D or Cat GRADE with 3D.
  • Standard Grade Assist:
    • The Cat GRADE with Assist feature uses semi-autonomous functionality to reduce operator fatigue, improve accuracy, and help you stay on grade with single-lever digging.
    • Set your desired bucket angle and Bucket Assist will automatically maintain the set angle in sloping, leveling, fine grading, and trenching applications for easy, accurate, and fast jobs.
    • Keep your tracks on the ground in lifting and hard digging jobs with Boom Assist.
    • Automatically stop excavator swing at operator-defined set points in truck loading and trenching applications with Swing Assist helping you use less effort and consume less fuel.
  • Standard Cat PAYLOAD on-board weighing system:
    • Achieve precise load targets and increase loading efficiency with on-the-go weighing and real-time estimates of your payload without swinging.
    • Track your daily productivity such as truck target weights and load/cycle counts.
    • Calibration can be performed in a matter of minutes.
    • Combine the Payload upgrade with VisionLink™and remotely manage your production targets.
    Optional Cat GRADE with Advanced 2D upgrade:
    • View real-time guidance on depth, slope, and horizontal distance to grade on a second high-resolution 254 mm (10 in) touchscreen monitor.
    • Create and edit grade designs with ease from your operator seat.
  • Optional Cat GRADE with 3D upgrade:
    • View real-time guidance bucket teeth position throughout the full range of motion for the boom, stick, and bucket on a second high-resolution 254 mm (10 in) touchscreen monitor.
    • Create and edit grade designs with ease from your operator seat.
    • Know your excavator's absolute position relative to GPS and GLONASS systems.
    • The machine automatically compensates for excavator pitch and roll caused by sloping ground conditions.
  • Standard Product Link™ provides location, machine hours, fuel usage, productivity, idle time, diagnostic codes, and other machine data on demand through VisionLink™ online interface, helping you improve jobsite efficiency and lowering operating costs.

Work in Comfort in the All-New Cab

  • Two cab options – Comfort and Deluxe – let you choose the level of comfort you need.
  • Enjoy wide spacing between consoles for a more spacious comfortable environment.
  • Sit in new, wide seats that adjust for operators of all sizes (heated option available).
  • Get in and out of the cab easier using the tip-up left console (in Deluxe cab only).
  • Control the excavator comfortably with easy-to-reach controls located in front of you.
  • Standard automatic climate control keeps you at the right temperature throughout your shift.
  • Improved viscous mounts reduce cab vibration by up to 50% over our previous excavator models.
  • Stow your gear with plenty of in-cab storage behind and beneath the seat, overhead, and in the consoles. A cup holder, document holder, bottle holder, and coat hook are included.
  • The standard radio has USB ports and Bluetooth® technology enabled to connect your device and make hands-free calls.

Built for Long Life

  • Protect hydraulic components in cold weather. The auto warm-up feature speeds hydraulic oil warming in cooler temperatures.
  • The fuel system is protected from contamination of fuel by three levels of filtration.
  • Bottom guarding protects engine and hydraulic components from damage while swinging and traveling.
  • The hydraulic tank with a new oval shape is designed to improve stress resistance.
  • The strong X-structure lower frame carries loads from the excavator's upper structure to the track.
  • Travel motor hydraulic lines are routed inside of the frame to protect them from damage.
  • The sloped track frame design prevents mud and debris from accumulating and damaging tracks.
  • The grease lubricated tracks have grease sealed between the pin and bushing to prevent debris from entering and reducing life.
  • The track rollers are sealed to prevent dirt and debris causing wear of internal components.
  • A bolt-on track guiding guard helps maintain track alignment while traveling or working on slopes.

Simple to Operate

  • You can navigate quickly on the standard high-resolution 8 in (203 mm) touchscreen monitor, or with the optional 10 in (254 m) touchscreen monitor, or with the aid of the jog dial control.
  • A second 10 in (254 mm) monitor is available for the advanced grade control.
  • Easy keyless push-to-start engine using your Bluetooth key fob or your smartphone to enable the pushbutton start feature.
  • Match the excavator's operation to your digging style by adjusting the joystick response and programming the function of each joystick button.
  • Not sure how a function works or how to maintain the excavator? Always have the operator's manual at your fingertips in the touchscreen monitor.
  • Operator ID saves your machine settings for the joystick pattern changer, button functions, and automatically restores the machine to your previously saved settings when you log in.

Maintenance

  • Expect up to 15% less maintenance cost than the 320D2.
  • Do all daily maintenance at ground level.
  • Check engine oil level quickly and safely with the new ground-level engine oil dipstick; fill and check engine oil on top of the machine with a conveniently located second dipstick.
  • Track your excavator's filter life and maintenance intervals via the in-cab monitor.
  • Change all fuel filters at a synchronized 500 hours.
  • Expect the new air intake filter with pre-cleaner to last up to 1,000 hours — a 100% increase over the previous filter.
  • The new hydraulic oil filter provides improved filtration performance, anti-drain valves to keep oil clean when the filter is replaced, and longer life with a 3,000 hour replacement interval – 50% longer than previous filter designs.
  • The new high-efficiency electric cooling fans only run when needed and reverse to keep cores free from debris.
  • S·O·S℠ ports are on ground level, simplifying maintenance and allowing for quick, easy extraction of fluid samples for analysis.

Safety

  • Set the ceiling, floor, swing, forward, and backward boundaries using standard 2D E-fence.
  • Keep your excavator secure with Operator ID. Use your PIN code on the monitor to enable the pushbutton starting feature.
  • See clearly through large windows with narrow cab pillars.
  • A rearview camera is standard.
  • The new right-hand steps provide easy, safe, and quick access to the upper service platform; the steps use antiskid plates anchored with recessed bolts to prevent slipping.
  • The standard roll-over protective structure (ROPS) cab meets ISO 12117-2 2008 requirements.
  • The handrails comply with ISO2867 requirements.
  • The lower frame meets ISO15818 lifting and tie-down requirements.

320 Standard Equipment

CAT CONNECT TECHNOLOGY
  • Cat GRADE with 2D (Not available on SLR)
  • Cat Assist (Boom Assist, Bucket Assist, Swing Assist, Grade Assist)
  • Cat Payload (Payload Information, Static Weigh, Auto Calibration)
  • 2D E-fence
  • Cat Product Link™

ENGINE
  • Cat C7.1 ACERT™ electronically controlled turbo charged diesel engine
  • Meets worldwide Tier 3/Stage IIIA equivalent emissions standards
  • Three selectable power modes
  • One-touch low idle with automatic engine speed control
  • Automatic engine idle shutdown
  • Recommended for use up to 4500 m (14,764 ft) altitude with engine power de-rate above 3000 m (9,842.5 ft).
  • 46° C (115° F) high-ambient cooling capacity
  • Cold starting capability for - 18° C (- 0° F)
  • Double element air filter with integrated pre-cleaner
  • Electric fuel priming pump
  • Reversible electric cooling fans
  • Biodiesel capability up to B20

HYDRAULIC SYSTEM
  • Boom and stick regeneration circuits
  • Electronic main control valve
  • Auto hydraulic warm up
  • Automatic two-speed travel
  • Boom and stick drift reduction valve
  • Element type main hydraulic filter
  • Slider joysticks
  • Electronic main pump

STANDARD COMFORT CAB
  • ROPS, standard sound suppression
  • High-resolution 8" (203 mm) LCD touchscreen monitor
  • Automatic bi-level air conditioner
  • Jog dial and shortcut keys for monitor control
  • Keyless push-to-start engine control
  • Height-adjustable console, infinite with no tool
  • Mechanically adjustable seat suspension
  • Seat belt, retractable (51 mm [2"] width)
  • Fixed-up left side console
  • Bluetooth® integrated radio with USB ports
  • 12V DC outlets (x2)
  • Document storage
  • Cup and bottle holders
  • Two-piece front window, openable
  • Steel hatch, openable
  • Upper radial wiper with washer
  • LED dome and lower interior lights
  • Roller front sunscreen
  • Beacon ready
  • Washable floor mat

UNDERCARRIAGE AND STRUCTURES
  • Tie-down points on base frame (ISO 15818 compliant)
  • Standard bottom guards
  • Travel motor guards
  • Grease lubricated track links
  • 3700 kg (8,160 lb) counterweight
  • Standard swing frame
  • Standard swing bearing
  • Base frame with HD track rollers and standard carrier rollers
  • Final drive with standard travel motor
  • Standard swivel guard
  • Segmented track guiding guard

ELECTRICAL
  • Machine electronic control module (x2)
  • 1000 CCA maintenance-free batteries (x2)
  • Centralized electrical disconnect switch
  • Programmable time-delay LED working lights
  • LED chassis light, LH & RH boom lights for reach and SLR, cab lights-850lumens

BOOM, STICKS AND LINKAGES
  • 5.7 m (18'8") HD reach boom
  • 2.9 m (9'6") HD stick
  • 600 mm (24") triple grouser track shoes
  • Bucket linkage, B1 family with lifting eye

SAFETY & SECURITY
  • Rearview camera and side RH Mirror
  • Neutral lever (lock out) for all controls
  • Anti-skid plate and countersunk bolts on service platform
  • Ground-level accessible secondary engine shutoff switch in cab
  • Bluetooth® receiver
  • RH hand rail and hand hold (ISO 2867 compliant)
  • Signaling/warning horn

SERVICE & MAINTENANCE
  • Sampling ports for Scheduled Oil Sampling (S·O·S℠)
  • Grouped location for engine oil and fuel filters
  • Ground-level 2nd dipstick for engine oil
  • Remote flash

320 Optional Equipment

CAT CONNECT TECHNOLOGY
  • Cat GRADE with Advanced 2D (Not available on SLR)
  • Cat GRADE with 3D (Not available on SLR)

ENGINE
  • 52° C (125° F) high-ambient cooling capacity
  • Cold starting capability for - 32° C (- 25° F)

HYDRAULIC SYSTEM
  • Hammer return filter circuit
  • Combined flow/high pressure aux circuit
  • Medium pressure aux circuit
  • Quick coupler circuit for Cat Pin Grabber
  • Boom/stick lowering check valves (BLCV/SLCV)

UNDERCARRIAGE AND GUARDS
  • Full length track guiding guard
  • Heavy-duty bottom guard
  • Heavy-duty travel motor guards
  • 4200 kg (9,260 lb) counterweight
  • 4700 kg (10,360 lb) counterweight
  • HD base frame with SD track rollers and standard carrier rollers for demolition and SLR configuration
  • Semi-HD swing frame

BOOM,STICKS & LINKAGES
  • 700 mm (28") triple grouser track shoes
  • 790 mm (31") triple grouser track shoes
  • 5.7 m (18'8") HD reach boom
  • 2.5 m (8'2") HD stick
  • SLR 8.85 m (29") boom
  • SLR 6.28 m (20'7") stick
  • Bucket linkage, B1 family without lifting eye
  • Bucket linkage, A family with/without lifting eye, SLR

ELECTRICAL SYSTEM
  • LED chassis light, LH & RH boom lights for VAB, cab lights w/ cover and rain protector - 850 lumens, for use with 360° visibility
  • LED chassis light, LH & RH boom lights for VAB, cab lights - 850 lumens
  • LED chassis light, LH & RH boom lights for reach and SLR, cab lights w/ cover and rain protector - 850 lumens, for use with 360° visibility
  • 1000 CCA Maintenance-free batteries (x4)

SERVICE & MAINTENANCE
  • Preventative Maintenance ready (Quick Evac)

SAFETY & SECURITY
  • 360° visibility
  • Rearview and RH sideview camera
  • Radiator screen
  • RH side mirror for use with RH sideview camera or 360° visibility

COMFORT CAB UPGRADES, STANDARD PLUS
  • High-resolution 8" (203 mm) LCD touchscreen monitor + additional monitor (Only for use with Cat Grade with Advanced 2D or Cat Grade with 3D).
  • High-resolution 10" (254 mm) LCD touchscreen monitor (Only for use with 360° visibility).
  • High-resolution 10" (254 mm) LCD touchscreen monitor + additional monitor (Only for use with 360° visibility and Cat Grade with Advanced 2D or Cat Grade with 3D).
  • Roller rear sunscreen
  • Rain protector and cab light covers (Only for use with 360° visibility.).
  • Air-adjustable seat suspension
  • Tilt-up left side console
  • Polycarbonate skylight hatch, openable (kit)

BUCKET
  • General duty buckets from 1.0 m3 (1.31 yd3) to 1.19 m3 (1.56 yd3)
  • Heavy duty buckets from 1.0 m3 (1.31 yd3) to 1.19 m3 (1.56 yd3)
  • Several duty buckets 1.0 m3 (1.31 yd3)
  • Ditch cleaning 0.53 m3 (0.69 yd3) and 0.57 m3 (0. 74 yd3) for SLR arrangement