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312E Hydraulic Excavator

312E Hydraulic Excavator

At a Glance

Engine Model
Cat® C4.4 ACERT™
Flywheel Power
91.0 hp
Operating Weight
33080.0 lb
Maximum Drawbar Pull
25628.0 lb
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Engine Model Cat® C4.4 ACERT™
Flywheel Power 91.0hp
Bore 4.13in
Stroke 5.0in
Displacement 269.0in3
Gross Power - SAE J1995 95.0hp
Net Power - SAE J1349 91.0hp


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Operating Weight 33080.0lb
Maximum Operating Weight 33080.0lb
Maximum Operating Weight** 33080.0lb
Minimum Operating Weight 29770.0lb
Minimum Operating Weight* 29770.0lb


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Maximum Drawbar Pull 25628.0lb
Maximum Travel Speed 3.4mph

Swing Mechanism

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Swing Torque 22791.0lb ft
Swing Speed 11.5RPM

Hydraulic System

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Maximum Pressure - Travel 5076.0psi
Maximum Pressure - Swing 3336.0psi
Pilot System - Maximum Flow 5.8gal/min
Pilot System - Maximum Pressure 598.0psi
Boom Cylinder - Bore 4.0in
Boom Cylinder - Stroke 40.0in
Stick Cylinder - Bore 5.0in
Stick Cylinder - Stroke 47.0in
Bucket Cylinder - Bore 4.0in
Bucket Cylinder - Stroke 37.0in
Main System - Maximum Flow (Total) 67.0gal/min
Maximum Pressure - Equipment 4424.0psi
Swing System - Maximum Flow 34.0gal/min

Service Refill Capacities

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Cooling System 5.81gal
Final Drive (each) 0.79gal
Hydraulic System (including tank) 43.32gal
Hydraulic Tank 23.93gal
Engine Oil (with filter) 3.57gal
Fuel Tank Capacity 66.04gal
Swing Drive 0.63gal


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Brakes ISO 10265 2008
Cab/OPG ISO 10262 1998
ROPS Cab ISO 12117-2

Sound Performance

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Operator Noise (Closed) - ISO 6396 69.0dB(A)
Spectator Noise - ISO 6395 100.0dB(A)


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Number of Carrier Rollers (each side) - Long Undercarriage 2 pieces
Number of Shoes (each side) - Long Undercarriage 46 pieces
Number of Track Rollers (each side) - Long Undercarriage 7 pieces