Category : Excavators ➔ Manufacturer : Caterpillar ➔ Model : M318D ➔
The Caterpillar M318D is a wheeled excavator in Caterpillar's M Series lineup, designed for road work, utility, material handling, and general excavation applications. It is powered by a diesel engine and uses a hydraulic system optimized for digging, lifting, and attachment operation. The M318D features a wheeled undercarriage for travel between job sites and work areas without the need for transport equipment. Common configurations include a boom, stick, bucket, and optional auxiliary hydraulics for attachments. The model is used in construction, municipal, and infrastructure projects where mobility, reach, and versatility are required.
Boom/Stick Option (Mex) 1
Caterpillar M318D Excavator Boom/Stick Option (Mex) 1 specifications
Boom/Stick Option (Mex) 1
VA Boom / stick 2.2m
Max Cutting Height
31.86 ft (9.71 m)
Max Digging Depth
18.87 ft (5.75 m)
Max Loading Height
21.99 ft (6.70 m)
Max Reach Along Ground
29.43 ft (8.97 m)
Max Vertical Wall Dig Depth
10.57 ft (3.22 m)
Shipping Height Of Unit
10.41 ft (3.17 m)
Shipping Length Of Unit
29.11 ft (8.87 m)
Boom/Stick Option (Mex) 2
Caterpillar M318D Excavator Boom/Stick Option (Mex) 2 specifications
Boom/Stick Option (Mex) 2
VA Boom / stick 2.8m
Max Cutting Height
33.50 ft (10.21 m)
Max Digging Depth
20.87 ft (6.36 m)
Max Loading Height
23.59 ft (7.19 m)
Max Reach Along Ground
31.47 ft (9.59 m)
Max Vertical Wall Dig Depth
13.00 ft (3.96 m)
Shipping Height Of Unit
10.83 ft (3.30 m)
Shipping Length Of Unit
28.94 ft (8.82 m)
Boom/Stick Option (Mex) 3
Caterpillar M318D Excavator Boom/Stick Option (Mex) 3 specifications
Boom/Stick Option (Mex) 3
One-piece Boom / stick 2.2m
Max Cutting Height
28.75 ft (8.76 m)
Max Digging Depth
18.71 ft (5.70 m)
Max Loading Height
19.36 ft (5.90 m)
Max Reach Along Ground
29.53 ft (9.00 m)
Max Vertical Wall Dig Depth
9.45 ft (2.88 m)
Shipping Height Of Unit
10.47 ft (3.19 m)
Shipping Length Of Unit
29.11 ft (8.87 m)
Boom/Stick Option (Mex) 4
Caterpillar M318D Excavator Boom/Stick Option (Mex) 4 specifications
Boom/Stick Option (Mex) 4
One-piece Boom / stick 2.8m
Max Cutting Height
30.09 ft (9.17 m)
Max Digging Depth
20.67 ft (6.30 m)
Max Loading Height
20.58 ft (6.27 m)
Max Reach Along Ground
31.50 ft (9.60 m)
Max Vertical Wall Dig Depth
11.88 ft (3.62 m)
Shipping Height Of Unit
10.93 ft (3.33 m)
Shipping Length Of Unit
29.37 ft (8.95 m)
Bucket Specifications
Caterpillar M318D Excavator Bucket Specifications specifications
Bucket Capacities
0.38 to 1.26 m3 (0.5 to 1.65 yd3)
Buckets
Caterpillar M318D Excavator Buckets specifications
Maximum Bucket Capacity
2.1 cu yd
Minimum Bucket Capacity
0.8 cu yd
Reference Bucket Capacity
1 cu yd
Cab/Rops/Fogs
Caterpillar M318D Excavator Cab/Rops/Fogs specifications
Standards
Standards
Dimensions
Caterpillar M318D Excavator Dimensions specifications
Ground Clearance
1.22 ft (0.37 m)
Height
10.83 ft (3.30 m)
Height To Top Of Cab
10.41 ft (3.17 m)
Length
29.08 ft (8.86 m)
Overall Width
8.37 in (21.26 cm)
Overall Width - Outriggers Down
12.54 ft (3.82 m)
Tail Swing Radius
8.21 ft (2.50 m)
Upper Structure Clearance
4.20 ft (1.28 m)
Weight
44,313.00 lbs (20,100.06 kg)
Wheelbase
8.54 ft (2.60 m)
Width
8.33 ft (2.54 m)
Drive
Caterpillar M318D Excavator Drive specifications
Maximum Travel Speed
23.00 mph (37.01 kph)
Engine
Caterpillar M318D Excavator Engine specifications
Bore
4.20 in (10.67 cm)
Cylinders
6
Displacement
403.00 cu in (6,604.00 cu cm)
Engine Make
2236
Engine Model
C6.6 Acert
Gross Power
174.00 hp (129.75 kw)
Maximum Torque - 1,400 Rpm
596.00 lbs ft (808.06 nm)
Net Power
166.00 hp (123.79 kw)
Net Power - 1,800 Rpm - Iso 9249
166.00 hp (123.79 kw)
Net Power - 80/1269/Eec
166.00 hp (123.79 kw)
Net Power - Iso 9249
166.00 hp (123.79 kw)
Net Torque
596.00 lbs ft (808.06 nm)
Number Of Cylinders
6
Ratings
1800 rpm
Stroke
5.00 in (12.70 cm)
Torque Measured @
1400 rpm
Hydraulic System
Caterpillar M318D Excavator Hydraulic System specifications
Maximum Flow - Auxiliary Circuit - High Pressure
66.00 gpm (249.81 lpm)
Maximum Flow - Auxiliary Circuit - Medium Pressure
13.00 gpm (49.21 lpm)
Maximum Flow - Implement/Travel Circuit
77.00 gpm (291.45 lpm)
Maximum Flow - Swing Mechanism
30.00 gpm (113.55 lpm)
Maximum Pressure - Auxiliary Circuit - High Pressure
5076 psi
Maximum Pressure - Auxiliary Circuit - Medium Pressure
2683 psi
Maximum Pressure - Implement Circuit - Heavy Lift
5439 psi
Maximum Pressure - Implement Circuit - Normal
5076 psi
Maximum Pressure - Swing Mechanism
4496 psi
Maximum Pressure - Travel Circuit
5076 psi
System
67 gal (US)
Tank Capacity
45.00 gal (170.33 l)
Operational
Caterpillar M318D Excavator Operational specifications
Alternator Supplied Amperage
75 amps
Cooling System Fluid Capacity
8.50 gal (32.17 l)
Engine Oil Capacity
4.00 gal (15.14 l)
Front Diff Fluid Capacity
2.80 gal (10.60 l)
Fuel Capacity
102.00 gal (386.07 l)
Hydraulic Pump Flow Capacity
77.00 gpm (291.45 lpm)
Hydraulic System Fluid Capacity
71.00 gal (268.74 l)
Hydraulic System Relief Valve Pressure
5076 psi
Max Steering Angle
35 degrees
Operating Weight
44,313.00 lbs (20,100.06 kg)
Oscillating Axle Angle
9 degrees
Rear Diff Fluid Capacity
3.70 gal (14.00 l)
Tire Size
10.00-20 16PR, dual
Service Refill Capacities
Caterpillar M318D Excavator Service Refill Capacities specifications
Cooling
9.50 gal (35.96 l)
Engine Crankcase
4.00 gal (15.14 l)
Final Drive
0.70 gal (2.65 l)
Front Steering Axle - Differential
2.80 gal (10.60 l)
Fuel Tank
102.00 gal (386.07 l)
Powershift Transmission
0.70 gal (2.65 l)
Rear Axle - Housing (Differential)
3.70 gal (14.00 l)
Sound Levels
Caterpillar M318D Excavator Sound Levels specifications
Exterior Sound
Exterior Sound
Swing Mechanism
Caterpillar M318D Excavator Swing Mechanism specifications
Swing Speed
10.5 rpm
Swing Torque
35,403.00 lbs ft (47,999.39 nm)
Tires
Caterpillar M318D Excavator Tires specifications
Optional
1) 11.00-20 (dual pneumatic) 2) 18 R 19.5 XF (single pneumatic) 3) 10.00-20 (dual solid rubber)
Standard
1) 10.00-20 (dual pneumatic)
Transmission
Caterpillar M318D Excavator Transmission specifications
Creeper Speed - 1st Gear
2.00 mph (3.22 kph)
Creeper Speed - 2nd Gear
8.00 mph (12.87 kph)
Forward/Reverse - 1st Gear
5.00 mph (8.05 kph)
Forward/Reverse - 2nd Gear
23.00 mph (37.01 kph)
Max Travel Speed
23.00 mph (37.01 kph)
Maximum Gradeability
60%
Number Of Forward Gears
2
Number Of Reverse Gears
2
Undercarriage
Caterpillar M318D Excavator Undercarriage specifications
Ground Clearance
1.25 ft (0.38 m)
Minimum Turning Radius - Standard Axle - End Of One-Piece Boom
27.00 ft (8.23 m)
Minimum Turning Radius - Standard Axle - End Of Va Boom
23.00 ft (7.01 m)
Minimum Turning Radius - Standard Axle - Outside Of Tire
21.00 ft (6.40 m)
Minimum Turning Radius - Wide Axle - End Of One-Piece Boom
28.00 ft (8.53 m)
Minimum Turning Radius - Wide Axle - End Of Va Boom
23.00 ft (7.01 m)
Minimum Turning Radius - Wide Axle - Outside Of Tire
21.00 ft (6.40 m)
Oscillation Axle Angle
9 degrees
Weights
Caterpillar M318D Excavator Weights specifications
Counterweight
8,810.00 lbs (3,996.15 kg)
Dozer Blade
1,700.00 lbs (771.11 kg)
One-Piece Boom* - Front And Rear Outriggers
40,896.00 lbs (18,550.14 kg)
One-Piece Boom* - Rear Dozer Only
38,250.00 lbs (17,349.93 kg)
One-Piece Boom* - Rear Dozer, Front Outriggers
40,455.00 lbs (18,350.10 kg)
Outriggers
2,270.00 lbs (1,029.66 kg)
Sticks - Industrial (3300 Mm)
1,146.00 lbs (519.82 kg)
Sticks - Long (2800 Mm)
1,323.00 lbs (600.10 kg)
Sticks - Medium (2500 Mm)
1,279.00 lbs (580.15 kg)
Sticks - Short (2200 Mm)
1,213.00 lbs (550.21 kg)
Va Boom* - Front And Rear Outriggers
42,108.00 lbs (19,099.89 kg)
Va Boom* - Rear Dozer Only
39,353.00 lbs (17,850.24 kg)
Va Boom* - Rear Dozer, Front Outriggers
41,667.00 lbs (18,899.86 kg)
Working Ranges
Caterpillar M318D Excavator Working Ranges specifications
Maximum Digging Depth
20.90 ft (6.37 m)
Maximum Reach - Ground Level
31.50 ft (9.60 m)
