Demo Video
Description
This 1989-built Komatsu PC50UU is a professionally reconditioned mini excavator with its 5,185 Kg (11,433 pounds) operating weight. It only has 3,862 hours, and in great running condition with normal wear and tear as shown on our transparent photos and demonstration video. The machine is powered by a Yanmar-manufactured diesel engine (3D95S-W-1) which is capable of delivering 38.5 HP. This unit has been modified to adopt Caterpillar (S.A.E) control pattern by default. Reverting to original Komatsu (Japanese) control pattern is also possible via a built-in quick shifter.
This unit has been thoroughly serviced with new hydraulic fluids, new engine oils, new coolant with antifreeze, and new filters (air, fuel, and oil). We have upgraded the excavator with new foot-pedal-controlled hydraulic thumb, new seat & seat belt, new starting battery, new LED headlight, new decals, and vivid Caterpillar-yellow paint. As required by U.S. CBP importing requirements, this unit has undergone strict fumigation and steam cleaning.
Product Features
This model has a highly-sought-after two-piece offset boom which is particularly useful for tight workspace applications with limited swing. If you are working in a tight alley, the boom can knuckle off to the right or left so that the machine can dig in line with one of the tracks up next to a structure. This model is qualified as a zero-tail swing machine with its 1750-mm upper body, 2000-mm overall width, and a tail swing radius of 990 mm (3'3"). This unit also comes with dual speed travel with high speed of 2.0 mph and low speed of 1.1 mph.
With Japanese ingenuity of applying sound-absorbing material to various parts of the machine, low noise performance comparable to that of a passenger car has been achieved. This model is designed for night work and urban areas such as schools and hospitals with noise level rated at 58 dBA @ 30 meter (98'5") and 70 dBA @ 7 meter (23'0"). To operator's ears, noise exposure is rated at only 83 dBA.
Product Manuals
General
- Make: Komatsu
- Model: PC50UU
- Serial #: 3841
- Track: Steel (BRAND NEW)
- Year built: 1989
- Hour meter: 3,862
- Origin: Japan
- Operating weight: 5,185 Kg (11,433 lbs)
- Bucket digging force: 3,500 Kg (7,716 lbs)
- Max ground pressure: 0.32 Kg/cm2 (4.6 psi)
- Swing speed: 9.0 rpm
- Swing max slope angle: ? deg.
- Travel speed: 1.7 kmh (1.1 mph) & 3.2 kmh (2.0 mph)
- Gradeability: 30 deg.
Engine
- Make: Komatsu
- Serial #: 20168
- Fuel: Diesel
- Model: 3D95S-W-1
- No. of cylinders - bore x stroke: ?
- Piston displacement: 2.020 L (123.3 cu.in.)
- Firing order: ?
- Flywheel horsepower: 38.5 HP @ 2,500 RPM
- Max torque: ? Kgm @ ? rpm
- Max speed at no load (high idling) : 2,700 rpm
- Min speed at no load (low idling): 950 rpm
- Min fuel consumption: ? g/HP.h
- Alternator: ?
- Starting Motor: ?
- Battery: ?
Fuel, Lubricating Oil, and Coolant
- Fuel: 56 Liter (14.8 US gallon)
- Hydraulic Oil (tank oil level): ?
- Hydraulic Oil (total system): 70 Liter (18.5 US gallon)
- Engine Oil (minimum): ?
- Engine Oil (maximum): ?
- Coolant: ?
OEM Working Range

Recorded Dimensions
- Transport Length: 5,950 mm (19'6")
- Transport Width: 2,000 mm (6'7")
- Transport Height: 2,420 mm (7'11")
- Backfill Blade Width: 2,000 mm (6'7")
- Backfill Blade Height: 390 mm (1'4")
- Bucket Width: 690 mm (2'3")
- Thumb Width: 315 mm (1'0")
- Track Width: 400 mm (1'4")
- Track Length: 2,390 (7'10")
- Track Standard: 400mm (width) x 72.5mm (pitch) x 70 (link)
- Boom Cylinder: 930 mm (3'1")
- Arm Cylinder: 750 mm (2'6")
- Bucket Cylinder: 585 mm (1'11")
- Thumb Cylinder: 290 mm (0'11")
OEM Dimensions
