Category : Excavators ➔ Manufacturer : Caterpillar ➔ Model : 312C ➔
The Caterpillar 312C is a hydraulic excavator in Caterpillar's 12-ton class, designed for general earthmoving, trenching, utility work, and site preparation. It is equipped with a Caterpillar diesel engine, hydraulic system, and crawler undercarriage for stable operation on uneven ground. The 312C is commonly used in construction, landscaping, and municipal applications where digging depth, reach, and maneuverability are required. Typical configurations may include a standard boom, stick options, and multiple bucket sizes. As part of the Caterpillar excavator lineup, the 312C is known for service access, operator comfort, and compatibility with a range of attachments.
Boom/Stick 1
Caterpillar 312C Excavator Boom/Stick 1 specifications
Boom/Stick 1
Boom 15'3" (4650mm)/ Stick 8'2" (2500mm)
Max Cutting Height
27.81 ft (8.48 m)
Max Digging Depth
18.21 ft (5.55 m)
Max Loading Height
20.00 ft (6.10 m)
Max Reach Along Ground
26.83 ft (8.18 m)
Max Vertical Wall Digging Depth
16.31 ft (4.97 m)
Shipping Height Of Unit
9.06 ft (2.76 m)
Shipping Length Of Unit
24.84 ft (7.57 m)
Boom/Stick 2
Caterpillar 312C Excavator Boom/Stick 2 specifications
Boom/Stick 2
Boom 15'3" (4650mm)/ Stick 9'0" (3000mm)
Max Cutting Height
28.53 ft (8.70 m)
Max Digging Depth
19.85 ft (6.05 m)
Max Loading Height
20.77 ft (6.33 m)
Max Reach Along Ground
28.30 ft (8.63 m)
Max Vertical Wall Digging Depth
17.54 ft (5.35 m)
Shipping Height Of Unit
9.06 ft (2.76 m)
Shipping Length Of Unit
24.84 ft (7.57 m)
Buckets
Caterpillar 312C Excavator Buckets specifications
Maximum Bucket Capacity
1 cu yd
Minimum Bucket Capacity
0.4 cu yd
Reference Bucket Capacity
0.8 cu yd
Dimensions
Caterpillar 312C Excavator Dimensions specifications
Ground Clearance
1.45 ft (0.44 m)
Height
9.17 ft (2.79 m)
Height To Top Of Cab
9.06 ft (2.76 m)
Length
24.83 ft (7.57 m)
Length Of Track On Ground
9.13 ft (2.78 m)
Tail Swing Radius
6.99 ft (2.13 m)
Weight
28,170.00 lbs (12,777.71 kg)
Width
8.50 ft (2.59 m)
Width To Outside Of Tracks
8.50 ft (2.59 m)
Engine
Caterpillar 312C Excavator Engine specifications
Aspiration
Turbocharged
Displacement
259.40 cu in (4,250.81 cu cm)
Engine Make
2236
Engine Model
3046 T
Gross Power
94.00 hp (70.10 kw)
Net Power
90.00 hp (67.11 kw)
Power Measured @
1950 rpm
Operational
Caterpillar 312C Excavator Operational specifications
Alternator Supplied Amperage
55 amps
Cooling System Fluid Capacity
4.70 gal (17.79 l)
Engine Oil Capacity
4.70 gal (17.79 l)
Fuel Capacity
66.10 gal (250.19 l)
Hydraulic Pump Flow Capacity
33.50 gpm (126.80 lpm)
Hydraulic System Fluid Capacity
42.80 gal (162.00 l)
Hydraulic System Relief Valve Pressure
4980 psi
Operating Weight
28,170.00 lbs (12,777.71 kg)
Swing Drive Fluid Capacity
0.80 gal (3.03 l)
Swing Mechanism
Caterpillar 312C Excavator Swing Mechanism specifications
Swing Speed
12.9 rpm
Swing Torque
22,496.00 lbs ft (30,500.08 nm)
Undercarriage
Caterpillar 312C Excavator Undercarriage specifications
Drawbar Pull
24,728.99 lbs (11,216.90 kg)
Ground Pressure
4.79 psi
Max Travel Speed
3.42 mph (5.50 kph)
Shoe Size
24.00 in (60.96 cm)
Track Gauge
6.53 ft (1.99 m)
