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Caterpillar 312B Excavator

The Caterpillar 312B Excavator offers powerful performance and versatility for a wide range of excavation tasks. With impressive maximum cutting heights, digging depths, and loading heights, this excavator is equipped to handle various projects with efficiency and precision. Its compact design and advanced features make it a reliable choice for professionals in the construction and mining industries. Discover more about the capabilities of the Caterpillar 312B Excavator through its detailed specifications below.


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General Specifications

Boom/Stick Excavator Option 1

Max Cutting Height27 ft (8 m)
Max Digging Depth17 ft (5 m)
Max Loading Height19 ft (6 m)
Max Reach Along Ground26 ft (8 m)
Max Vertical Wall Digging Depth15 ft (4 m)

Boom/Stick Excavator Option 2

Max Cutting Height28 ft (9 m)
Max Digging Depth18 ft (6 m)
Max Loading Height20 ft (6 m)
Max Reach Along Ground27 ft (8 m)
Max Vertical Wall Digging Depth16 ft (5 m)
Shipping Height of Unit9 ft (3 m)
Shipping Length of Unit25 ft (8 m)

Boom/Stick Excavator Option 3

Max Cutting Height29 ft (9 m)
Max Digging Depth20 ft (6 m)
Max Loading Height21 ft (6 m)
Max Reach Along Ground28 ft (9 m)
Max Vertical Wall Digging Depth18 ft (5 m)
Shipping Height of Unit9 ft (3 m)
Shipping Length of Unit25 ft (8 m)

Bucket

Maximum Bucket Capacity1 cu yd (1 cu m)
Minimum Bucket Capacity1 cu yd (0 cu m)
Reference Bucket Capacity1 cu yd (0 cu m)

Dimensions

Ground Clearance2 ft (0 m)
Height - Top of Cab9 ft (3 m)
Length of Track on Ground9 ft (3 m)
Removal Counterweight Clearance3 ft (1 m)
Tail Swing Radius7 ft (2 m)
Width to Outside of Tracks8 ft (2 m)

DRIVE SYSTEM

Maximum Drawbar Pull22,930 lbs (10,401 kg)
Travel Speed3 mph (5 kph)

Engine

AspirationTurbocharged
Bore4 in (10 cm)
Displacement259 cu in (4,244 cu cm)
Engine ModelCat 3064T Diesel Engine
Flywheel Power84 hp (63 kw)
Gross Power91 hp (68 kw)
ISO 924984 hp (63 kw)
Net Power84 hp (63 kw)
Power Measured @1900 rpm
SAE J134984 hp (63 kw)
Stroke5 in (13 cm)

Hydraulic System

Boom Cylinder - Bore4 in (11 cm)
Boom Cylinder - Stroke40 in (102 cm)
Bucket Cylinder - Bore4 in (10 cm)
Bucket Cylinder - Stroke38 in (95 cm)
Main Implement System - Maximum Flow (2x)32 gpm (121 lpm)
Maximum Pressure - Implements4340 psi
Maximum Pressure - Swing3340 psi
Maximum Pressure - Travel4980 psi
Stick Cylinder - Bore5 in (12 cm)
Stick Cylinder - Stroke47 in (119 cm)

Operating Specifications

Alternator Supplied Amperage50 amps
Cooling System Fluid Capacity4 gal (16 l)
Engine Oil Capacity4 gal (13 l)
Fuel Capacity66 gal (250 l)
Hydraulic Pump Flow Capacity64 gpm (240 lpm)
Hydraulic System Fluid Capacity43 gal (162 l)
Hydraulic System Relief Valve Pressure4980 psi
Operating Voltage24 volts
Operating Weight27,410 lbs (12,433 kg)
Swing Drive Fluid Capacity1 gal (3 l)

Service Refill Capacities

Cooling System4 gal (16 l)
Engine Oil3 gal (13 l)
Final Drive - Each1 gal (3 l)
Fuel Tank66 gal (250 l)
Hydraulic System - Including Tank43 gal (162 l)
Hydraulic Tank26 gal (98 l)
Swing Drive - Each1 gal (3 l)

Swing Mechanism

Swing Speed12.3 rpm

Undercarriage

Drawbar Pull22,930 lbs (10,401 kg)
Ground Pressure5.7 psi
Max Travel Speed4 mph (6 kph)
Shoe Size20 in (50 cm)
Track Gauge7 ft (2 m)

Weights

Operating Weight28,680 lbs (13,009 kg)