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345 Large Excavators

The Cat® 345 is a multitasking master that offers a balance of dependable production, operator-oriented features, and low owning and operating costs. Equipped with the reliable Cat C9.3B 258kW engine and two power modes to help manage fuel consumption for specific applications such as truck loading and trenching, this machine is compatible with multiple Cat attachments and a smart choice for operations where consistency and performance are priorities.

345

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Cat® 345 hydraulic trackhoe excavators bring premium power, performance, control, digging, trenching, and heavy lifting capacity to your large scale projects.

Net Power - ISO 9249
346 hp
Operating Weight
93000 lb
Maximum Digging Depth
23.6 ft
Engine Model
Cat C9.3
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  • Specifications
  • Features
  • Standard Equipment

Specifications

Engine specifications
Net Power - ISO 9249 258 kW
Engine Model Cat C9.3
Engine Power - ISO 14396 259 kW
Bore 115 mm
Stroke 149 mm
Displacement 9.3 l

Features

Latest Features

        
  • The latest cab design is outfitted with an ergonomic seat, touchscreen display, climate control, noise insulation, and vibration reduction, helping reduce fatigue while allowing the operator to stay on task.

Build Number: 07H

Performance Powerhouse

        
  • Work up to 3300 m (10,830 ft) above sea level.
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  • Powerful swing torque easily handles changes in momentum, uneven terrain, and consistent high-impact connections, helping operators make their work swift and precise.
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  • Did you know baffle plates help increase an excavator’s strength-to-weight ratio? That is why Caterpillar incorporates the plates in high-stress areas like the boom, stick, and frame. Reinforcing the machine without adding significantly more weight also helps provide years of reliable performance, even in the harshest environments.
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  • The cylinder rods are reinforced with additional wear rings to help reduce oil leaks. The car body has thick baffle plates for a long service life. The thick track link has large bolt joints to help maintain bolt retention. Track rollers have a large shaft diameter to help prevent bending and oil leaks while increasing the 340s loading capacity, which means more reliable production for you.
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  • Grease sealed between track pins and bushings reduces travel noise and prevents debris from entering to increase undercarriage life.
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  • The center track guiding guard helps align the excavator track when traveling and working on slopes.
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  • The sloped track frame prevents mud and debris accumulation, helping reduce the risk of track damage.
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  • Auxiliary hydraulic options allow you to use a wide range of Cat® attachments.
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  • 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.
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  • Match the excavator to the job with three operating modes: Power, Smart, and Eco.
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  • Smart mode automatically adjusts power for the highest fuel efficiency – less power for tasks such as swinging and more power for digging.
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  • Enhanced heavy lift mode increases system pressure to help you easily pick and place heavy material.
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  • Auto warm-up speeds up hydraulic oil warming in cold temperatures and helps prolong the life of components.
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  • Don’t let the temperature stop you from working. This excavator has a standard high-ambient temperature capability is 52° C (125° F) with cold start capability at –18° C (0° F).
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  • An optional battery-operated engine heater enables starting at –32° C (–25.6° F).
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  • The C9.3B engine meets Brazil Mar-1 emission standards, equivalent to U.S. EPA Tier 3, EU Stage IIIA, and China Nonroad Stage III.

Ultimate Operator Comfort

        
  • Sites where excavators work are typically rugged and challenging. That’s why it’s important that the 345 cab helps protect the operator as much as possible from fatigue, stresses, sounds, and temperatures of the job.
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  • Comfort and efficiency of movement help keep operators productive and alert all shift long. The standard seat is wide and adjustable for operators of virtually any size.
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  • The tip-up left console makes getting in and out of the seat easy.
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  • Two cab options – Essential and Deluxe – let you choose the level of comfort you need.
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  • The Deluxe cab package includes a heated air suspension seat.
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  • The cab is sound-suppressed and sealed.
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  • Advanced viscous mounts reduce cab vibration
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  • Control the excavator comfortably with easy-to-reach controls located in front of you.
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  • The touchscreen monitor makes it easy to access critical information and settings. Shortcut keys make it easy; two are for entertainment, heating, and air conditioning. There is also a shortcut key for apps and functions that you can set.
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  • Standard automatic climate control keeps you at the right temperature throughout your shift.
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  • Convenience features include Bluetooth® integrated radio, USB charging and phone connectivity ports, 12V DC outlets, and an AUX port.
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  • Cup and bottle holders are easy to reach, and storage spaces are located conveniently throughout the cab.
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  • Stow your gear with plenty of in-cab storage beneath and behind the seat, overhead, and in the consoles.
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  • Not all features are available in all regions. Please check with your local Cat® dealer for specific offering availability in your area.

Intuitive and Empowering to Operate

        
  • The 345 uses a keyless push-button engine start. This adds security for the machine by using Operator ID codes to limit and track machine access. Codes can be entered manually via an optional Bluetooth key fob.
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  • Most machine settings can be controlled through the high-resolution touchscreen monitor. It offers several languages and is easy to reach from the seat – no twisting or turning.
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  • Operating can be made easier with the touch of a joystick button. The joystick function can be customized through the monitor. The joystick pattern and response can be set to match operator preference. All preferences are saved with the Operator ID and restored at login.
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  • You can also add an auxiliary relay to power on or turn off a CB radio, beacon light, or other attachment so you don’t have to take your hands off the joysticks.
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  • Program up to four depth and slope offsets so you can easily get to grade without a grade checker – saving time and enhancing safety on the jobsite.
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  • Operator coaching is an in-cab system that recognizes specific opportunities for operators to be more productive and prevent unnecessary machine wear and tear.
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  • Not sure how a function works or how to maintain the excavator? Always have the operator’s manual at your fingertips on the touchscreen monitor.
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  • Use the in-monitor QR code to learn about machine and technology features through a full suite of “how-to” videos.
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  • Not all features are available in all regions. Please check with your local Cat® dealer for specific offering availability in your area.

Easy and Economical Maintenance

        
  • The 345’s extended and synchronized service intervals and reduced hydraulic oil capacity help you save time and money.
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  • The excavator is auto-lube ready with built-in mounting points; an available auto-lube retrofit kit provides additional hardware to mount a grease pump and line guards – all to help do the job of lubing safer, cleaner, and trouble-free.
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  • Boost productivity with proactive service reminders. The Integrated Vehicle Health Management system alerts the operator with step-by-step service guidance and parts needed so you don't experience unnecessary downtime.
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  • Track your excavator’s filter life and maintenance intervals via the in-cab monitor.
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  • Fuel and engine oil filters are accessible from the upper platform and synchronized to be changed at 1,000 hours.
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  • The latest hydraulic oil filter provides high-quality filtration performance and features anti-drain valves to keep oil clean when the filter is replaced, and the 3,000-hour extended replacement interval offers efficiency and convenience.    
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  • Scheduled Oil Sampling (S·O·SSM) ports with extended sampling intervals are on ground level, simplifying maintenance and allowing for quick, easy sample extraction for fluid analysis.
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  • Using Cat® genuine oil and filters and doing typical S∙O∙S monitoring will extend the current service interval, giving you more uptime.
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  • The high-efficiency hydraulic fan has a programmable automatic reverse function to keep cores free from debris, eliminating the need for any operator interaction.
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  • The advanced air intake filter with pre-cleaner has a high dust-holding capacity.
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  • The latest engine air cleaners with an integrated pre-cleaner surpass radial seal air cleaners' lifespan.

Standard Equipment

NOTE
  • Standard and optional equipment may vary. Consult your Cat dealer for details.
CAB
  • ROPS, standard sound suppression
  • High-resolution 203 mm (8") LCD touch screen monitor
  • Heated air-suspension seat
ENGINE
  • Three selectable modes: Power, Smart, Eco
  • Auto engine speed control
  • Up to 3300 m (10,830 ft) altitude capability
  • 52° C (126° F) high-ambient cooling capacity 
  • -18° C (0° F) cold start capability
HYDRAULIC SYSTEM
  • Boom and stick regeneration circuit
  • Electronic main control valve
  • Auto hydraulic oil warm up
  • Reverse swing damping valve
  • Auto swing parking brake
UNDERCARRIAGE AND STRUCTURES
  • Towing eye on baseframe (ISO 15818 Compliant)
  • 9 mt (19, 842 lb) counterweight
ELECTRICAL SYSTEM
  • Maintenance-free 1000 CCA batteries (x2)
  • Centralized electrical disconnect switch
  • LED chassis light, right and left hand boom lights, cab lights
CAT TECHNOLOGY
  • Cat Product Link
  • Auto hammer stop
SERVICE AND MAINTENANCE
  • Grouped location of engine oil & fuel filters
  • Scheduled Oil Sampling (S.O.S) sampling ports
SAFETY AND SECURITY
  • Caterpillar One Key security system
  • Lockable external tool / storage box
  • Lockable door, fuel, and hydraulic tank locks
  • Lockable fuel drain compartment
  • Service platform with anti-skid plate & recessed bolts

Optional Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

CAB

  • Operator Protective Guards (OPG)

ENGINE

  • Cold start block heaters
  • -32° C (-25° F) cold start capability

HYDRAULIC SYSTEM

  • Fine swing
  • Combined two-way auxiliary-circuit
  • Combined two-way auxiliary-circuit with hammer return filter

UNDERCARRIAGE AND STRUCTURES

  • 600mm (24") double grouser track shoes
  • 600mm (24") HD triple grouser track shoes
  • 600mm (24") triple grouser track shoes
  • 700mm (28") triple grouser track shoes

BOOMS AND STICKS

  • 6.55 (21'6") Mass boom
  • 6.9m (22'8") Reach boom
  • 2.55 (8'4") Mass stick
  • 2.9m (9'6") Reach stick
  • 3.0m (9'10") Mass stick

SERVICE AND MAINTENANCE

  • Electric refueling pump with auto shutoff