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Cat® 345 GC

Operating weight
42200 kg
Net power in HP
258 kW
Bucket capacity
HD 2.41 m³ (3.15 yd³)
  • Fuel efficiency and serviceability make the 345 GC stand out. Add in a quiet and comfortable ROPS cab, easy-to-use controls, and multiple Cat attachment options and you have one tough excavator capable of taking on a variety of tasks.


The 345 GC gets work done efficiently and reliably with balanced power and control.


An adjustable seat, easy-to-reach controls, and ISO-certified ROPS protection make for a more pleasant, safer work environment.


Increase uptime and reduce costs with extended maintenance intervals.

  • Get up to 25 percent more fuel efficiency than the 349D2 Tier 3 excavator in similar applications.
  • The C9.3B engine meets Brazil MAR-1 and China Nonroad Stage III emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA.

  • Work up to 3300 m (10,830 ft) above sea level.
  • Standard high-ambient temperature capability is 52° C (125° F) with cold start capability at –18° C (0° F).
  • Automatic hydraulic oil warm up gets you to work faster in cold temperatures and helps prolong the life of components.
  • The Comfort 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.
  • Start the engine with a push button; use a Bluetooth key fob, smartphone app, or Operator ID passcode.
  • Program your power mode and joystick preferences using Operator ID; the excavator will remember them every time you go to work.
  • Expect up to 35 percent less maintenance cost than the 349D2 Tier 3 excavator due to extended and synchronized service intervals and smaller fluid quantities (savings calculated over 12,000 machine hours).
  • Keep your excavator secure with Operator ID. Use your PIN code on the monitor to enable the push button starting feature.
  • The standard ROPS cab meets ISO 12117-2:2008 requirements.


Net Power - ISO 9249 346 HP
Engine Model Cat C9.3
Engine Power - ISO 14396 347 HP
Bore 5 in
Stroke 6 in
Displacement 568 in³

Main System - Maximum Flow 630 l/min (166 gal/min)
Maximum Pressure - Equipment 5076 psi
Maximum Pressure - Travel 5076 psi
Maximum Pressure - Swing 4061 psi

Swing Speed 8.27 r/min
Maximum Swing Torque 114543 ft·lbf

Operating Weight 93000 lb

Fuel Tank Capacity 158.5 gal (US)
Cooling System 10.5 gal (US)
Engine Oil 8.5 gal (US)
Swing Drive 4.8 gal (US)
Final Drive - Each 2.1 gal (US)
Hydraulic System - Including Tank 111.7 gal (US)
Hydraulic Tank 49.1 gal (US)

Boom Reach 6.9m (22.8"")
Stick R2.9TB (9'6"")
Bucket HD 2.41 m³ (3.15 yd³)
Shipping Height - Top of Cab 10.6 ft
Handrail Height 11.1 ft
Shipping Length 38.1 ft
Tail Swing Radius 11.6 ft
Counterweight Clearance 4.3 ft
Ground Clearance 1.7 ft
Track Length 16.5 ft
Track Length to Center of Rollers 13.3 ft
Track Gauge 9 ft
Transport Width 11 ft

Maximum Digging Depth 23.6 ft
Boom Reach 6.9m (22.8"")
Stick R2.9TB (9'6"")
Bucket HD 2.41 m³ (3.15 yd³)
Maximum Reach at Ground Level 37 ft
Maximum Cutting Height 34.6 ft
Maximum Loading Height 23.7 ft
Minimum Loading Height 10.3 ft
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 23 ft
Maximum Vertical Wall Digging Depth 17.7 ft
Bucket Digging Force - ISO 52860 lbf
Stick Digging Force - ISO 44550 lbf

Cat buckets and Cat Ground Engaging Tools (GET) are designed and matched to the machine to ensure optimal performance and fuel efficiency.


Center-Lock is a pin grabber coupler and features a patent-pending locking system. A highly visible secondary lock clearly shows the operator when the coupler is engaged or disengaged from the bucket or work tool..


Cat® Hammers make short work of your demolition, construction, and quarry needs. Combine the simple, lightweight design of the GC Hammer series with the reliability, durability, and value you expect from Cat products. The result is a low cost per hour solution providing the consistent power and performance you need.


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Cat shears are designed to take full advantage of the hydraulic flows and pressures produced by Cat excavators – all to enhance productivity without compromising safety or causing premature wear of the shear or carrier.


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