330 Excavator | 30 Ton Excavator / Digger



The Cat® 330 excavator has the speed, efficiency, and power for your heavy-duty applications requiring maximum productivity. You get built-in Cat GRADE with 2D, Grade Assist, and Payload as standard equipment right from the factory – boosting your operator efficiency by up to 45 percent. Combine these features with a new cab, longer maintenance intervals, and increased fuel efficiency, and you have a low-cost-per-unit-of-production excavator built for your heavy-duty applications.

Not all features are available in all regions. Consult your Cat dealer for specific configurations available in your region.


Engine Model
Cat® C7.1
Net Flywheel Power
272.00 HP
203.00 kW
Gross Power - ISO 14396/SAE J1995
275.00 HP
205.00 kW
Net Power - SAE J1349
272.00 HP
203.00 kW
Net Power - ISO 9249
273.00 HP
204.00 kW
Engine RPM - Operation
1750.00 r/min
1750.00 r/min
Engine RPM - Travel
1750.00 r/min
1750.00 r/min
4.00 in
105.00 mm
5.00 in
135.00 mm
428.00 in³
7.01 l

Hydraulic System

Main System - Maximum Flow - Implement
148.00 gal/min
560.00 l/min
Maximum Pressure - Equipment - Normal
5075.00 psi
35000.00 kPa
Maximum Pressure - Equipment - Heavy Lift Mode
5510.00 psi
38000.00 kPa
Maximum Pressure - Travel
5075.00 psi
35000.00 kPa
Maximum Pressure - Swing
4320.00 psi
29800.00 kPa

Machine Weight

Operating Weight
68100.00 lb
30900.00 kg
Operating Weight - 800 mm (31”) Triple Grouser Shoes
68100.00 lb
30900.00 kg
Note (1)
Reach boom, R3.2 m (10'6") stick, HD 1.76 m3 (2.30 yd3) bucket, 800 mm(31") triple grouser shoes and 6700 kg (14,770 lb) counterweight.
Operating Weight - 600 mm (24”) Triple Grouser Shoes
66000.00 lb
30000.00 kg
Note (2)
Reach boom, R3.2 m (10'6") stick, HD 1.76 m3 (2.30 yd3) bucket, 600 mm(24") triple grouser shoes and 6700 kg (14,770 lb) counterweight.

Service Refill Capacities

Fuel Tank Capacity
125.20 gal (US)
474.00 l
Cooling System
6.60 gal (US)
25.00 l
Engine Oil
6.60 gal (US)
25.00 l
Swing Drive
2.60 gal (US)
10.00 l
Final Drive - Each
1.50 gal (US)
5.50 l
Hydraulic System - Including Tank
81.90 gal (US)
310.00 l
Hydraulic Tank
38.80 gal (US)
147.00 l
DEF Tank
10.80 gal (US)
41.00 l

Air Conditioning System

Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 0.9 kg of refrigerant which has a CO2 equivalent of 1287 metric tonnes.


Reach 6.15 m (20'2")
HD 1.76 m3 (2.30 yd³)
Shipping Height - Top of Cab
10.10 ft
3060.00 mm
Handrail Height
10.10 ft
3060.00 mm
Shipping Length
34.20 ft
10420.00 mm
Tail Swing Radius
10.30 ft
3130.00 mm
Track Length to Center of Rollers
13.10 ft
3990.00 mm
Ground Clearance
1.60 ft
490.00 mm
Track Gauge
8.50 ft
2590.00 mm
Track Gauge - Narrow Undercarriage
7.80 ft
2390.00 mm
Transport Width - 600 mm (24”) Shoes
10.50 ft
3190.00 mm
Transport Width - 600 mm (24") Shoes- Narrow Undercarriage
9.80 ft
2990.00 mm
Transport Width - 800 mm (31”) Shoes
11.10 ft
3390.00 mm
Counterweight Clearance
3.70 ft
1120.00 mm

Working Ranges & Forces

Reach 6.15 m (20'2")
HD 1.76 m3 (2.30 yd³)
Maximum Digging Depth
23.80 ft
7240.00 mm
Maximum Reach at Ground Level
35.10 ft
10680.00 mm
Maximum Cutting Height
32.90 ft
10030.00 mm
Maximum Loading Height
22.80 ft
6950.00 mm
Minimum Loading Height
7.60 ft
2300.00 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom
23.30 ft
7090.00 mm
Maximum Vertical Wall Digging Depth
19.80 ft
6010.00 mm
Bucket Digging Force - ISO
40200.00 lbf
179.00 kN
Stick Digging Force - ISO
28300.00 lbf
126.00 kN
Bucket Digging Force - SAE
35300.00 lbf
157.00 kN
Stick Digging Force - SAE
27700.00 lbf
123.00 kN


Engine Power - ISO 9249
273.00 HP
204.00 kW
Engine Power - ISO 14396
275.00 HP
205.00 kW

Hydraulic System

Main System - Maximum Flow
560 l/min (148 gal/min)
Maximum Pressure - Equipment
5075.00 psi
35000.00 kPa
Maximum Pressure - Equipment - Lift Mode
5510.00 psi
38000.00 kPa

Swing Mechanism

Swing Speed
11.50 r/min
11.50 r/min
Maximum Swing Torque
737.56 lb/ft
86.00 kN·m


Operating Weight
68100.00 lb
30900.00 kg


Length to Center of Rollers
7.80 ft
3990.00 mm
Transport Width
11.10 ft
3390.00 mm


  • Increase fuel efficiency up to 20 percent over the 330F excavator.
  • Lift more with up to nine percent improved lift capacity and increased bucket size over the 330F excavator.
  • Make working on slopes easier with five percent improved swing torque over the 330F excavator.
  • Increase operating efficiency up to 45 percent with standard Cat technologies that lower operator fatigue and your operating costs, including fuel consumption and daily maintenance.
  • The C7.1 engine can run on biodiesel up to B20 and meets U.S. EPA Tier 4 Final, EU Stage IV, Japan 2014 (Tier 4 Final) and Korea Tier 4 Final emission standards with an after treatment system that requires no maintenance or downtime.
  • The advanced hydraulic system provides the optimum balance of power and efficiency while giving you the control you need for precise digging requirements
  • Match the excavator to the job with power modes; let Smart mode automatically match engine and hydraulic power to digging conditions.
  • Advansys™ bucket tips increase penetration and improve cycle times. Tip changes can be done quickly with a simple lug wrench instead of a hammer or special tool, improving safety and uptime.
  • Auxiliary hydraulic options give you the versatility to use a wide range of Cat attachments.
  • Available Smart Boom™ lets the boom freely travel up and down without using any pump flow so operators can focus on stick and bucket work. The benefits are reduced operator stress and reduced fuel consumption.
  • Don’t let the temperature stop you from working. The excavator has a standard high-ambient temperature capability of 52° C (125° F) with de-rate and cold start capability of –18° C (0° F). An optional – 32° C (–25° F) cold start package is available


  • Boost productivity up to 45 percent versus traditional grading with standard Cat GRADE with 2D system - includes indicate-only and laser capability.
  • Dig with guidance to depth, slope, and horizontal distance to grade. You can set up to four different target depth and slope offsets to help save time and money. When the job calls for a different offset, quickly switch through the monitor and get to work.
  • The 2D system is upgradeable to Cat GRADE with Advanced 2D or Cat GRADE with 3D.
  • Standard Grade Assist -
  1. Stay on grade – simply and effortlessly – with single-lever digging.
  2. Set your desired bucket angle and let Bucket Assist automatically maintain the angle in sloping, leveling, fine grading, and trenching applications for easy, accurate, and fast jobs.
  3. Keep the tracks on the ground in lifting and hard digging with Boom Assist.
  4. Automatically stop excavator swing at operator-defined set points in truck loading and trenching applications with Swing Assist, which will help you use less effort and consume less fuel.
  • Standard Cat PAYLOAD onboard weighing system -
  1. Achieve precise load targets and increase loading efficiency with on-the-go weighing and real-time estimates of your payload without swinging.
  2. Take payload data with you. The monitor’s USB port lets you download your results from one shift all the way up to 30 days of work so can manage your progress without needing an internet connection or VisionLink subscription.
  3. Track your daily productivity such as truck target weights and load/cycle counts.
  4. Calibration can be performed in a matter of minutes.
  5. Combine Payload with VisionLink® and remotely manage your production targets.
  • Upgrade to optional Cat GRADE with Advanced 2D -
  1. Create and edit grade designs with ease on a second high-resolution 254 mm (10 in) touchscreen monitor.
  • Upgrade to optional Cat GRADE with 3D -
  1. Create and edit designs with ease and see the front linkage’s full range of motion on a second high-resolution 254 mm (10 in) touchscreen monitor.
  2. Use the excavator’s onboard cell technology to quickly connect to 3D services like TCC or VRS.
  3. Know the excavator ’s exact position relative to GPS and GLONASS systems.
  4. Already invested in another brand’s 3D system? No problem. Standard Cat technology like GRADE with 2D can readily integrate with that system to give you the precise results you need.
  5. The machine automatically compensates for excavator pitch and roll caused by sloping ground conditions.
  6. Antennas have theft-prevention bolts; a special tool makes them easy for the owner to remove at the end of a shift.
  • The standard 2D E-fence feature integrated right out of the factory prevents the excavator from moving outside operator-defined set points.
  • Standard Product Link™ collects data automatically and accurately from your assets – any type and any brand. Information such as location, hours, fuel usage, productivity, idle time, maintenance alerts, diagnostic codes, and machine health can be viewed online through web and mobile applications.
  • Improve your accuracy and safety – Add a new Cat Tiltrotator system upgrade with factory-fit joysticks. The system allows a Tiltrotator to work with standard Cat 2D Grade and E-Fence; it uses the standard cab monitor to display the tool and engage its SecureLock™ so you don’t need spend money on an extra monitor.


  • Choose between Deluxe and Premium cabs – both with automatic climate control.
  • The Deluxe seat is heated and air adjustable. The Premium seat is heated and cooled and adjusts automatically.
  • Get in and out of the cab easier using the tip-up left console.
  • Advanced viscous mounts reduce cab vibration up to 50 percent over previous excavator models.
  • Control the excavator comfortably with easy-to-reach controls all located in front of you.
  • Stow your gear with plenty of in-cab storage beneath and behind the seat, overhead, and in the consoles. A cup holder, document holder, bottle holder, and coat hook are also provided.
  • Use the standard radio’s USB ports and Bluetooth® technology to connect personal devices and make hands-free calls.


  • Start the engine with a push button; use a Bluetooth key fob, smartphone app, or the unique Operator ID function.
  • Program your power mode and joystick preferences using Operator ID; the excavator will remember what you set each time you go to work.
  • Navigate quickly on the standard high-resolution 203 mm (8 in) touchscreen monitor, or with the optional 254 mm (10 in) touchscreen monitor, or with the aid of the jog dial control.
  • Protect your hammer from overworking. Auto hammer stop warns you after 15 seconds of continuous firing and then automatically shuts it off after 30 seconds -- all to prevent wear and tear on the attachment and excavator.
  • A second 254 mm (10 in) monitor is available for the advanced grade control.
  • 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.
  • Find the tool you need – even if it’s hidden beneath overgrowth or debris. The excavator’s onboard Bluetooth reader can search for any work tool equipped with Cat asset tracking devices up to a range of 60 meters (200 feet).
  • The Cat PL161 Attachment Locator is a Bluetooth device that makes finding your attachments and other gear quick and easy. The excavator's onboard Bluetooth reader or Cat App on your phone will locate the device automatically.
  • Save more time and energy with the available work tool recognition feature. A simple shake of the attached tool confirms its identity; it also ensures all the attachment settings are correct so you can get to work quickly and efficiently.
  • Auto Dig Boost increases power by up to 8% for better bucket penetration, shorter cycle times, and greater payloads.


  • Expect up to 25 percent less maintenance cost than the 330F (savings calculated over 12,000 machine hours).
  • 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.
  • Do no required maintenance on the Cat Clean Emissions Module.
  • Using Cat genuine oil and filters and doing your typical S∙O∙S monitoring will double the current service interval to 1,000 hours, giving you greater uptime to do more work.
  • Expect the new air intake filter with pre-cleaner to last up to 1,000 hours – a 100 percent 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 percent longer than previous filter designs.
  • High-efficiency cooling fans run only when needed; you can program intervals so they automatically reverse to keep cores clean without interrupting your work
  • S·O·S ports are on ground level, simplifying maintenance and allowing for quick, easy extraction of fluid samples for analysis.


  • Lift Assist helps you avoid tipping. With visual and auditory alerts, you’ll know if your load is within the excavator’s safe working range limits.
  • Access 100 percent of daily maintenance points from ground level – no need for you to climb on top of the excavator.
  • The standard ROPS cab meets ISO 12117-2:2008 requirements.
  • Enjoy great visibility into the trench, in each swing direction, and behind you with the help of smaller cab pillars, larger windows, and a flat engine hood design.
  • The standard hydraulic lockout lever isolates all hydraulic and travel functions in the lowered position.
  • Ground-level shut-off switch stops all fuel to the engine when activated and shuts down the machine.
  • A rearview camera and a right-side-view camera are standard. Upgrade to 360° visibility and you’ll easily visualize objects and personnel around the excavator in a single view.
  • New right service platform design provides easy, safe, and quick access to upper service platform; the service platform steps use anti-skid punch plate to prevent slipping.
  • Available boom and stick lowering check valves prevent reverse flow, keeping your front linkage securely in place should the hydraulic system unexpectedly lose power.
  • Enhance operator safety by adding Cat Command to your fleet. The remote control system keeps you away from potential hazards. The new non-line-of-site kit comes with Wi-Fi radio, cameras, and microphone to allow you to work anywhere you want.
Standard Equipment
  • NOTE
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • CAB
    • ROPS, standard sound suppression (Deluxe only)
    • ROPS, advanced sound suppression (Premium only)
    • Air-adjustable seat with heat (Deluxe only)
    • High-resolution 203 mm (8 in) LCD touchscreen monitor (Korea only)
    • High-resolution 254 mm (10 in) LCD touchscreen monitor
    • Cat Product Link
    • Cat GRADE with 2D
    • Cat GRADE with Assist
    • Cat PAYLOAD
    • 2D E-Fence
    • Lift Assist
    • Auto Dig Boost
    • Three selectable power modes
    • One-touch low idle with automatic engine speed control
    • Auto engine idle shutdown
    • 52°C (125°F) high-ambient cooling capacity with de-rate
    • Double element air filter with integrated precleaner
    • Reversing electric cooling fans
    • Biodiesel capability up to B20
    • Boom and stick regeneration circuits
    • Auto hydraulic warm up
    • Auto two-speed travel
    • Boom and stick drift reduction valve
    • Advanced Tool Control (two pump, one/two way high pressure flow) - Europe only
    • 6.15 m (20'2") reach boom, 3.2 m (10'6") reach stick
    • Tie-down points on base frame
    • 6700 kg (14,770 lb) counterweight
    • Two 1,000 CCA maintenance free batteries
    • Programmable time-delay LED working lights
    • LED chassis light, left-hand/right-hand boom lights, cab lights
    • Sampling ports for Scheduled Oil Sampling (S·O·S)
    • Ground-level and platform-level engine oil dipsticks
    • Rearview camera
    • Right-side-view camera
    • Ground-level engine shutoff switch
    • Right-hand handrail and hand hold
    • Signaling/warning horn
Optional Equipment
  • NOTE
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • CAB
    • Auto-adjustable seat with heat and air ventilation (Premium only)
    • High-resolution 254 mm (10 in) LCD touchscreen monitor (Korea only)
    • Cat GRADE with Advanced 2D
    • Cat GRADE with 3D
    • Cat Command remote control
    • -32°C (-25°F) cold start capability
    • 360° visibility