Caterpillar 385B


Maximum Bucket Capacity7.10 cu yds (5 m)
Reference Bucket Capacity3.90 cu yds (3 m)


Ground Clearance3 ft (1 m)
Height to Top of Cab12.40 ft (4 m)
Length of Track on Ground15.10 ft (5 m)
Removal Counterweight Clearance5.20 ft (2 m)
Tail Swing Radius15.10 ft (5 m)
Width to Outside of Tracks11.20 ft (3 m)


Bore5.60 in (14 cm)
Displacement964 cu in (0 m)
Engine MakeCaterpillar
Engine ModelCaterpillar 3456 ATAAC
Gross Power530 hp (395 kw)
Net Power530 hp (395 kw)
Net Power - EEC 80/1269513 hp (383 kw)
Net Power - ISO 9249513 hp (383 kw)
Net Power - SAE J1349513 hp (383 kw)
Power Measured @1,800 rpm
Stroke6.80 in (17 cm)

Hydraulic System

23.823.80 gal/min (90 l/min)
258258 gal/min (977 l/min)
595595 psi
Boom Cylinder - Bore8.30 in (21 cm)
Boom Cylinder - Stroke77.40 in (197 cm)
Maximum Pressure - Equipment - Normal4,640 psi
Maximum Pressure - Swing3,770 psi
Maximum Pressure - Travel5,075 psi
Stick Cylinder - Bore8.70 in (22 cm)
Stick Cylinder - Stroke89.10 in (226 cm)
Swing System - Maximum Flow119

Operating Specifications

Maximum Digging Depth35.10 ft (11 m)


Cooling System Fluid Capacity26.70 gal (101 l)
Engine Oil Capacity17.20 gal (65 l)
Fuel Capacity327.60 gal (1,240 l)
Hydraulic Pump Flow Capacity258.90 gal/min (980 l/min)
Hydraulic System Fluid Capacity262.90 gal (995 l)
Hydraulic System Relief Valve Pressure4,641.30 psi
Operating Weight185,475 lbs (84,131 kg)
Swing Drive Fluid Capacity5.10 gal (19 l)

Service Refill Capacities

Cooling System26.70 gal (101 l)
Engine Oil21.10 gal (80 l)
Final Drive - Each5.50 gal (21 l)
Fuel Tank Capacity328 gal (1,241 l)
Hydraulic System - Including Tank263 gal (995 l)
Hydraulic Tank214 gal (810 l)
Swing Drive - Each5 gal (19 l)


BrakesSAE J1026 APR 90
Cab/FOGSSAE J1356 FEB 88 ISO 10262

Swing Mechanism

Swing Speed6.20 rpm


Number of Shoes - Each Side - Long Undercarriage51
Number of Track Rollers - Each Side - Long Undercarriage9
Standard with Long Undercarriage36 in (91 cm)


Drawbar Pull133,086.90 lbs (60,368 kg)
Max Travel Speed2.80 mph (5 kph)
Number of Carrier Rollers per Side3
Number of Shoes per Side47
Number of Track Rollers per Side8
Shoe Size25.60 in (65 cm)
Track Gauge11.60 ft (4 m)


Operating Weight - Long Undercarriage189,770 lbs (86,079 kg)
Operating Weight - Standard Undercarriage183,940 lbs (83,435 kg)

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