312B

Small Excavators

Improved serviceability, performance and rugged durability combine to maximize productivity. Better controllability, simplified service and a more comfortable operator station increase productivity and lower operating costs.

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Engine Model Cat 3064T Diesel Engine

Flywheel Power 63 kW

Gross Power 68 kW

ISO 9249 63 kW

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312B

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FEATURES & BENEFITS

Overview

Improved performanceBetter controllability, higher stick and bucket forces, increased lift capacity, simplified service and a more comfortable operator station increase y... Read more

Operator Station

Ergonomic ControlThis cab puts the operator firmly and comfortably in control which can translate into greater productivity.Viewing AreaExcellent viewing area through lar... Read more

Serviceability

Hydraulic Oil FilterAn operator or a serviceman can replace this cartridge-type filter without putting his hands in hydraulic oil.Engine Oil FilterThe 312B engine oil fil... Read more

Electronic Control System

ControllabilityControllability of the 312B have been greatly improved to increase operator comfort. This improves operating effectiveness and efficiency. Read more

Hydraulics

Hydraulic SystemTwo variable displacement, axial-piston pumps power the boom, stick, swing, bucket, auxiliary and travel circuits. One single-section, gear-type pump powe... Read more

Undercarriage and Blades

UndercarriagePrecision robotic welding helps ensure quality welds. These welds increase rigidity, reduce internal stresses     and enhance durability... Read more

Structures

Advanced CarbodyAdvanced carbody design stands up in the toughest applications.Robot-Welded Track Roller FramesRobot-welded track roller frames are press-formed, pentagon... Read more

SPECIFICATIONS FOR 312B

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Engine

Engine Model	Cat 3064T Diesel Engine
Flywheel Power	63 kW
Gross Power	68 kW
ISO 9249	63 kW
SAE J1349	63 kW
EEC 80/1269	63 kW
Bore	102 mm
Stroke	130 mm
Displacement	4.25 l

Weights

Operating Weight

13010 kg

Swing Mechanism

Swing Torque	30400 kN·m
Swing Speed	12.3 r/min

Drive

Maximum Drawbar Pull	104 kN
Travel Speed	5.5 km/h

Hydraulic System

Main Implement System - Maximum Flow (2x)	120 l/min
Maximum Pressure - Implements	29900 kPa
Maximum Pressure - Travel	34300 kPa
Maximum Pressure - Swing	23050 kPa
Pilot System - Maximum Flow	18 l/min
Pilot System - Maximum Pressure	3900 kPa
Boom Cylinder - Bore	110 mm
Boom Cylinder - Stroke	1015 mm
Stick Cylinder - Bore	120 mm
Stick Cylinder - Stroke	1197 mm
Bucket Cylinder - Bore	100 mm
Bucket Cylinder - Stroke	939 mm

Service Refill Capacities

Fuel Tank	250 l
Cooling System	15.5 l
Engine Oil	13 l
Swing Drive - Each	2.8 l
Final Drive - Each	2.5 l
Hydraulic System - Including Tank	162 l
Hydraulic Tank	98 l

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