Komatsu PC 88MR-11 Review: In this Komatsu PC 88MR-11 review, I go over this big powerful excavator. I cover the engine, transmission, and hydraulics in detail. Taking a closer look at many specs and finding out what it’s really like woSection: Review: Komatsu PC 88MR-11
Komatsu PC 88MR-11 Specs
The Komatsu PC 88MR-11 is a 11.8t machine with Komatsu engine which powers this model with up to 109kW or 145 horse power. The Komatsu PC 88MR-11 can be grouped in the medium sized machine segment in the mini excavators category. The model’s dimensions are 7.11m x 2.02m x 2.75m. This Komatsu PC 88MR-11 mini excavator belongs to the biggest machine segment in the mini excavators category.
The bucket capacity of PC 88MR-11 is 0,4m³, which is above average for this type of machine. It has a hydraulic system pressure of 31MPa, which is more than most other similar models on spec comparison. The main hydraulic pump capacity of this model is 108 l/min, which is average for this type of machine. This specific model has a maximum digging depth of 4,15m and a maximum dumping height of 6,41m, which is average for this type of machine.
Komatsu PC 88MR-11 Engine
This engine is among the best in the business, with exceptional power and torque for increased productivity. Advanced fuel injection technology, low maintenance and emissions compliance also make it a winner.
Komatsu PC 88MR-11 Engine for a Komatsu PC88MR-11 Excavator for sale in Washington for $17,500.00 USD.
| Model | Komatsu SAA3D95E-1* |
| Type | Water-cooled, 4-cycle, direct injection |
| Aspiration | Turbocharged, aftercooled, cooled EGR |
| Number of Cylinders | 3 |
| Bore | 3.74 in |
| Stroke | 4.52 in |
| Piston displacement | 149.5 in3 |
| Horsepower @ 1,900 rpm: | |
| SAE J1995 / Gross | 68.0 HP |
| ISO 9249 / SAE J1349 / Net | 67.9 HP |
| Rated rpm | 1,850 |
| Fan drive method for radiator cooling | Mechanical with viscous fan clutch |
| Governor | All-speed control, electronic |
Komatsu PC 88MR-11 Retractable undercarriage
Komatsu’s PC 88MR-11 is a mid-sized, retractable undercarriage excavator. With a maximum digging depth of 22 feet and a max dumping height of 31 feet, the PC 88MR-11 is suitable for demolition, mining and road building jobs. The customer can choose between two versions of the PC 88MR-11: one version has a narrow track gauge suited to work in confined areas; the other version has a wider track gauge that provides more stability.
Net horsepower: 95 hp
Operating weight: 46,000 pounds
Max digging depth: 22 feet
Komatsu PC 88MR-11 Switchable operating weight mode
The PC88MR-11 is powered by a Komatsu SAA6D107E-2 engine, which meets Tier 4 Final emission regulations and delivers 164 hp/122 kW. The four-cylinder, direct injection engine uses a maintenance-free diesel particulate filter (DPF) and selective catalytic reduction (SCR) to control emissions.
Komatsu’s latest intelligent machine control excavator is designed to help contractors improve productivity and reduce fuel consumption. The PC88MR-11 has all the same features as the PC88MR-10 with the addition of a switchable operating weight mode. Operators can now choose between two modes — performance and standard — to optimize cycle times or increase lifting capacity, depending on the job at hand. Performance mode increases the operating weight of the excavator to 85,065 lbs./38,500 kg for increased digging force, while standard mode retains its 80,060 lbs./36,300 kg operating weight for high travel speeds.
Komatsu PC 88MR-11 The cab
The cab is equipped with a heater, air conditioning and fire extinguisher. The windows are made of polycarbonate with a heating element. The door has an electric window. The footrests are foldable so that the maintenance technician can easily enter the cab.
The steering wheel is adjustable in height and angle, and an adjustable seat allows for comfortable work for people of different height. A large 12-inch monitor displays important information about the excavator’s operation.
Operator Environment
The climate control system provides a comfortable environment for the operator regardless of the weather or season.
Comfortable Operator Environment
The Komatsu PC 88MR-11 excavator has all the features necessary to provide a comfortable environment for the operator and excellent visibility in any direction.
| Number of selectable working modes | 6 |
| Main pumps: | |
| Pumps for | Boom, arm, bucket, swing, and travel circuits |
| Type | Variable displacement, axial piston |
| Maximum flow | 42.2 gpm |
| Pumps for | Blade |
| Type | Fixed displacement gear |
| Maximum flow | 17.0 gpm |
| Hydraulic motors: | |
| Travel | 2 x piston motor with parking brake |
| Swing | 1 x axial piston motor with swing holding brake |
| Relief valve setting: | |
| Implement circuits | 3,844 psi |
| Travel circuits | 3,844 psi |
| Swing circuit | 3,060 psi |
| Pilot circuit | 464 psi |
| Blade circuit (Raise) | 1,842 psi |
| Blade circuit (Lower) | 3,060 psi |
| Hydraulic cylinders (Number of cylinders): | bore x stroke x rod |
| Boom (2) | 4.53 x 38.9 x 2.56 in |
| Arm (1) | 3.9 x 33.9 x 2.36 in |
| Bucket (1) | 3.54 x 27.95 x 2.17 in |
| Swing (1) | 4.72 x 25.12 x 2.36 in |
| Blade (1) | 5.12 x 7.87 x 2.56 in |
| Auxiliary hydraulics: | |
| Two-way | 36.5 gpm |
| Relief | 3,830 psi |
| One-way | 21.1 gpm |
| Relief in breaker mode | 2,490 psi |
Komatsu PC 88MR-11 Controls and ergonomics
Komatsu has advanced the hydraulic excavator over the years, with increased reliability and simplicity in design. With track loaders, backhoe-loaders and compactors, Komatsu offers reliable equipment to make your job easier.
Innovative features
The Komatsu PC 88MR-11 is a popular medium excavator that boasts innovative features that simplify operation, increase productivity and reduce owning and operating costs.
Ergonomic controls
The ergonomic control layout makes it easy for operators to view the work area. The joystick steering provides smooth and precise movement of the machine, while the travel lever allows the operator to move forward or reverse with ease. Operators can switch between work modes with a single button. The display panel shows all critical machine functions and indicates any potential problems with the machine systems.
Improved hydraulics
The hydraulic system on this model has been designed to provide excellent power efficiency. The hydraulic cylinders are used in this model to improve digging speed and reduce fuel consumption. This model also has an idle shutdown system that helps lower fuel consumption and engine emissions by turning off the engine after a certain period of idling. The PC 88MR-11 uses a diesel particulate filter system that works without adding additional fuel consumption or exhaust emissions.
The Komatsu PC 88MR-11 is a very tough wheeled excavator that can get the job done in any work environment. It’s meant for loose, unstable ground like sand and gravel and can work on very steep inclines. Of course, there are other wheeled excavators that do the same job for less, but you’ll end up shelling out more money for something that does basically the same job as this machine.