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340 Long Reach Excavator

340 Long Reach Excavator

At a Glance

Engine Power - ISO 9249
311 HP
Operating Weight
96700 lb
Maximum Digging Depth
42.8 ft
Engine Model
Request a Demo Machine Comparison


The Cat® 340 excavator delivers efficiency in all applications. Simple-to-use technologies like Cat GRADE with 2D, Grade Assist, Payload, and E-Fence all come standard from the factory to boost your operator efficiencies up to 45 percent. Combine these with a new cab, longer maintenance intervals that lower your maintenance costs up to 15 percent, and a power system that that improves fuel efficiency up to 15% and you have a low-cost-per-unit-of-production excavator capable of taking on your toughest work.

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


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Engine Power - ISO 9249 311HP
Engine Model C9.3B
Engine Power - ISO 14396 314HP
Bore 5in
Stroke 6in
Displacement 568in³


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Operating Weight 96700lb

Working Ranges & Forces

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Maximum Digging Depth 42.8ft
Boom 10.6 m (34'9")
Stick LRE Stick 7.1 m (23'4")
Maximum Reach at Ground Level 59.3ft
Maximum Loading Height 41.9ft
Minimum Loading Height 10.5ft
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 35ft
Bucket Digging Force - ISO 31590lbf
Stick Digging Force - ISO 20750lbf
Bucket GD 0.93 m3 (1.22 yd3)
Maximum Cutting Height 51.2ft

Hydraulic System

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Main System - Maximum Flow 558 l/min (147 gal/min)
Maximum Pressure - Equipment 5076psi
Maximum Pressure - Equipment - Lift Mode 5511psi
Maximum Pressure - Travel 5076psi
Maximum Pressure - Swing 4264psi

Swing Mechanism

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Swing Speed 8.75r/min
Maximum Swing Torque 106228ft·lbf

Service Refill Capacities

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Fuel Tank Capacity 158.5gal (US)
Cooling System 10.5gal (US)
Engine Oil 8.5gal (US)
Swing Drive 4.8gal (US)
Final Drive - Each 2.1gal (US)
Hydraulic System - Including Tank 98.5gal (US)
Hydraulic Tank 42.5gal (US)
DEF Tank 21.1gal (US)


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Boom LRE Boom 10.6 m (34'9")
Stick LRE Stick 7.1 m (23'4")
Bucket GD 0.93 m3 (1.22 yd3)
Shipping Height - Top of Cab 11.2ft
Handrail Height 11.1ft
Track Gauge 9.6ft
Shipping Length 50.2ft
Tail Swing Radius 11.6ft
Counterweight Clearance 4.8ft
Ground Clearance 2.4ft
Track Length 15.5ft
Track Length to Center of Rollers 13.3ft
Transport Width 12ft