330 GC Excavator | 30 Ton Excavator / Digger



The Cat® 330 GC Excavator balances productivity with easy-to-use controls, a new comfortable cab, reduced fuel consumption by up to 12 percent, and longer maintenance intervals that reduce maintenance costs up to 20 percent – all to give you a durable, low-cost per- hour excavator for your 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
202.00 HP
151.00 kW
Gross Power - ISO 14396/SAE J1995
204.00 HP
152.00 kW
Net Power - SAE J1349/ISO 9249
202.00 HP
151.00 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
5075.00 psi
35000.00 kPa
Maximum Pressure - Travel
5075.00 psi
35000.00 kPa
Maximum Pressure - Swing
4120.00 psi
28400.00 kPa

Machine Weight

Operating Weight
67700.00 lb
30700.00 kg
Operating Weight - 800 mm (31”) Triple Grouser Shoes
67700.00 lb
30700.00 kg
Note (1)
Reach boom, R3.2 m (10'6") stick, HD 1.54 m3 (2.01 yd3) bucket, 800 mm (31") triple grouser shoes and 6700 kg (14,770 lb) counterweight.
Operating Weight - 600 mm (24”) Triple Grouser Shoes
65600.00 lb
29700.00 kg
Note (2)
Reach boom, R3.2 m (10'6") stick, HD 1.54 m3 (2.01 yd3) bucket, 600 mm (24") triple grouser shoes and 6700 kg (14,770 lb) counterweight.
* Operating weight reduced by 2100 kg (4,900 lb) with 5800 kg (12,780 lb) counterweight, standard undercarriage, 1.20 m3 (1.57 yd3 ) GD Bucket. (Japan only)

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 6.15m (20'2")
Reach 3.2 m (10'6")
HD 1.54 m3 (2.01 yd3)
Shipping Height - Top of Cab
10.00 ft
3050.00 mm
Handrail Height
10.00 ft
3050.00 mm
Shipping Length
34.20 ft
10420.00 mm
Tail Swing Radius
10.30 ft
3130.00 mm
Track Length to Center of Rollers - Long Undercarriage
13.10 ft
3990.00 mm
Track Length to Center of Rollers - Standard Undercarriage*
11.40 ft
3490.00 mm
Ground Clearance
1.60 ft
490.00 mm
Track Gauge - Long Undercarriage
8.50 ft
2590.00 mm
Track Gauge - Standard Undercarriage*
7.80 ft
2390.00 mm
Transport Width - 600 mm (24") Shoes, Long Undercarriage
10.50 ft
3190.00 mm
Transport Width - 600 mm (24") Shoes, Standard Undercarriage*
9.80 ft
2990.00 mm
Transport Width - 800 mm (31") Shoes, Long Undercarriage
11.10 ft
3390.00 mm
Transport Width - 800 mm (31") Shoes, Standard Undercarriage*
10.50 ft
3190.00 mm
Counterweight Clearance
3.70 ft
1110.00 mm
Japan only

Working Ranges & Forces

Reach 6.15m (20'2")
Reach 3.2 m (10'6")
HD 1.54 m3 (2.01 yd3)
Maximum Digging Depth
23.80 ft
7260.00 mm
Maximum Reach at Ground Level
35.10 ft
10690.00 mm
Maximum Cutting Height
32.90 ft
10020.00 mm
Maximum Loading Height
22.80 ft
6940.00 mm
Minimum Loading Height
7.50 ft
2280.00 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom
23.30 ft
7100.00 mm
Maximum Vertical Wall Digging Depth
19.80 ft
6030.00 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

High Performance with Lower Fuel Consumption

  • Use up to 12 percent less fuel than the 330F Excavator in similar applications.
  • 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.
  • Valve priority puts hydraulic pressure and flow where you command it to go for fast light- to medium-load cycle times.
  • 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.
  • 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.

Reliable, Whatever the Environment

  • Work up to 3000 m (9,840 ft) above sea level without de-rating.
  • Don’t let the temperature stop you from working. The excavator has a standard high-ambient temperature capability of 52° C (125° F) and cold start capability of –18° C (0° F). An optional – 32° C (–25° F) cold start package is available.
  • Auto warm up speeds up hydraulic oil warming in cold temperatures and helps prolong the life of components.
  • Two levels of fuel filtration protect the engine from dirty diesel fuel.
  • Grease sealed between track pins and bushings reduces travel noise and prevents debris from entering to increase undercarriage life.
  • The track guiding guard helps keep the excavator track aligned when traveling and working on slopes.
  • The sloped track frame prevents mud and debris accumulation, helping reduce risk of track damage.

Work in Comfort in the All-New Cab

  • The cab has a wide seat that adjusts for operators of all sizes.
  • Control the excavator comfortably with easy-to-reach controls all located in front of you.
  • Standard automatic climate control keeps you at the right temperature all shift long.
  • Advanced viscous mounts reduce cab vibration by up to 50 percent over previous excavator models.
  • 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 to personal devices.

Simple to Operate

  • 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 aid of the jog dial control.
  • Not sure how a function works or how to maintain the excavator? Always have the operator’s manual at your fi ngertips in the touchscreen monitor.
  • Find the tool you need – even if it’s hidden beneath overgrowth or debris. The optional Bluetooth reader can search for any work tool equipped with Cat asset tracking devices up to a range of 60 meters (200 feet).


  • Expect up to 20 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.
  • No required maintenance on the Cat Clean Emissions Module.
  • Change all fuel filters at a synchronized 1,000 hours – a 100 percent increase over the 330F fuel filters.
  • 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.


  • Access 100 percent of daily maintenance points from ground level – no need for you to climb on top of the excavator.
  • Keep your excavator secure with Operator ID. Use your PIN code on the monitor to enable the pushbutton starting feature.
  • 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. A rearview camera and a right-side-view camera are standard.
  • 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.
  • 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.
Standard Equipment
  • NOTE
    • Not all features are available in all regions. Please check with your local Cat dealer for specific offering availability in your area.
  • CAB
    • ROPS, standard sound suppression
    • High-resolution 203 mm (8 in) LCD touchscreen monitor
    • Mechanically adjustable seat
    • Cat Product Link
    • One-touch low idle with auto engine speed control
    • 52°C (125°F) high-ambient cooling capacity with de-rate
    • Reversing electric cooling fans
    • Two selectable power modes
    • Auto engine idle shutdown
    • Biodiesel capability up to B20
    • Double element air filter with integrated precleaner
    • Boom and stick regeneration circuits
    • Auto two-speed travel
    • Boom and stick drift reduction valve
    • Tool Control (two pump, one/two way high-pressure flow)* (Europe only)
    • Auto hydraulic warm up
    • 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 (All regions except Japan)
    • 5800 kg (12,790 bl) counterweight (Japan only)
    • Two 1,000 CCA maintenance free batteries
    • Programmable time-delay LED working lights
    • LED chassis light, left-hand/right-hand boom lights, cab lights
    • Ground-level and platform-level engine oil dipsticks
    • Sampling ports for Scheduled Oil Sampling (S·O·S)
    • Signaling/warning horn
    • Right-side-view camera
    • Rearview camera
    • Ground-level engine shutoff switch
    • Right-hand handrail and hand hold
Optional Equipment
    • -32°C (-25°F) cold start capability
    • Hammer return filter circuit
    • Boom and stick lowering check valves
    • Quick coupler circuit
    • Tool Control (two pump, one/two way high-pressure flow)
    • Medium-pressure circuit
    • 6.15 m (20'2") reach boom, 2.65 m (8'8") reach stick
    • 600 mm (24") triple grouser shoes
    • 800 mm (31") triple grouser shoes
    • Electric refueling pump with auto shut off