Komatsu D355 series was the first generation of the dozers, which began production in 1980. The D355 dozer was not the best dozer in the world: it had a D155 engine, which was improved and then installed into a dozer. It didn’t have the horsepower of the Caterpillar D6M. Though, with the Komatsu D355A, you’ll get more than just durability, with five very large Japanese engines to choose from.
Komatsu D355a dozer is designed with a turbocharger for high power, and an altitude sensor to ensure the best power at any elevation without adjusting the fuel injection. With a superior engine that is powerful, efficient, and low maintenance, the Komatsu d355a provides construction companies with the most reliable vehicle for an energy-efficient operation. The d355a Komatsu maximizes comfort and comfort. It quickly and accurately moves huge loads. There’s also a single lever control, which makes it easy to change the speed and direction of the vehicle. It has an alarm that warns you if your load is too heavy for the set speed, protecting both operators and equipment. When you’re working outside, it can be hard to keep track of all your important information. With the Komatsu D355a bulldozer, you can control multiple tasks with just one lever. If you press the decelerator pedal, the machine will move slowly so it is easy to operate. And if you want to use an alarm device to check on engine temperature issues or oil pressure problems, all you have to do is push a button.
Komatsu D355a’s bucket-type reclining oil suspension seat is an example of Komatsu’s commitment to comfort and safety. It ensures operator comfort and shields you from shocks and vibrations. A bucket-type reclining seat suspension prevents operators from getting tired on long jobs. Komatsu undercarriage components are reliable. Unique dust seals keep out dirt while keeping in an important lubricant that optimizes performance. The rollers are self-lubricating, unlike other brands that require special maintenance.
The Komatsu D355 dozer delivers the power of a hydraulic pump in an innovative Toroflow transmission. Using this single lever, you can pump hydraulic oil in or out with equal ease. Transport loads more safely and in a fraction of the time with a Komatsu D355a bulldozer. Its wet-type interconnected steering clutches and brakes are easy to use and they provide a longer service life than dry-type units. Its lowered chassis allows for easy maintenance and it has a dashboard warning unit that features cooling and lubrication warnings.
Komatsu D355a Specs
Engine
The Komatsu D355a doesn’t just get the job done, it gets the job done right. This powerful and reliable engine fits a wide range of industry applications and works hard to exceed expectations. The Komatsu D355a has 410 hp at 2000 rpm and 1,273 lb-ft of torque at 1400 RPM. The D355a Komatsu provides improved fuel economy, thanks to direct injection and a mechanical governor. The all-speed lubrication and double filters help the engine stay clean. This model has an electrical 24-volt starting system.
- Engine Model: SAGD155-4A
- Displacement: 1175.4 cu in.
- Aspiration: Turbocharged
- Gross Power 306 kW – 410 HP
- Power Measured: 2000 RPM
- Power Torque: 1400 RPM
- Starter: 24V, electric
Transmission
Komatsu D355a features a unique torque-splitting, hydrodynamically-actuated, multiple-disc clutch which is powered by two ultra-efficient inverters and controlled by six proportional valves. Single-lever control of speed and direction allows the Komatsu D355a dozer to be used for a wide variety of tasks, requiring optimum machine speed.
- Number Of Gears : 4 reverse and 4 Forward
- Transmission Type: Transmission Fluid
| Gear | Travel Speeds |
|---|---|
| 1 st Forward | 2,1 mph – 3,3 km |
| 2 nd Forward | 3,2 mph – 5,1 km |
| 3 rd Forward | 5,3 mph – 8,5 km |
| 4 th Forward | 7,9 mph – 12,7 km |
| 1 st Reverse | 2,0 mph – 3,2 km |
| 2 nd Reverse | 3,1 mph – 5,0 km |
| 3 rd Reverse | 5,2 mph – 8,4 km |
| 4 th Reverse | 7,8 mph – 12,6 km |
Steering
The Komatsu D355a is an easy-to-use bale handler. Lever-controlled wet multiple-disc steering clutches make it easy to maneuver. And one-foot hydraulic brakes make moving around the field simple.
- Minimum Turning Radius: 7m – 12’2″1
Weight
- Operating Weight: 36600 kg – 80,690 lb
Undercarriage
- Suspension: Oscillation-type equalizer bar
- Track roller frame: Box-section, high-tensile strength-steel construction
- Number of Track Rollers (eachside): 7
- Number of Carrier Rollers (eachside): 2
- Number of shoes (eachside): 39
- Grouser Height: 88 mm – 3,5″
- Shoe Width (standard): 610 mm – 24.0″
- Ground Contact Area: 40990 cm2 – 6.350 sp. in
- Ground Pressure: 0.89 ks/cm2 – 12.66 psl/87.3 kpa
Capacity
| US | Metric | |
|---|---|---|
| Coolant | 47,6 gal | 180 L |
| Fuel Tank | 198,2 gal | 750 L |
| Engine | 18,8 gal | 71 L |
| Final Drive (each side) | 18 gal | 68 L |
Hydraulic Oil Capacity
- Angledozer, Straightdozer and Cushion-dozer: 270 lt – 71.3 gal
- Straight Tiltdozer and U-dozer: 280 lt – 74 gal
Hydraulic Control Unit
The Komatsu D355a bulldozer is desirable for various construction sites. It comes with a hydraulic remote control device that has two basic functional points. All spool-type valves from the hydraulic tank, a pump from a gear type with a discharge capacity of 396 It. – 104.6 Gal.
- Relief valve setting: 140 kg lcm2 – 2,OOO PSI/13.7 MPa
- One control valve for angledozer, straightdozer and cushion-dozer
- Blade Lift Position: Raise, hold, float and lower
- Two Control Valves for Straight-Tiltdozer and U-dozer Positions: Blade lift . raise, hold, float and lower blate tilt Left, hold and right.
- Blade Lift’s Number of Cylinders: 2, Bore: 160 mm – 6,30″
- Blade Tilt’s Number of Cylinders: 1, Bore: 250 mm – 9,84″
- Ripper Lift’s Number of Cylinders: 2, Bore: 225mm – 8,86″
- Blade Tift’s Number of Cylinders: 2, Bore: 225mm – 8,86″
Equipment and Dimensions
Komatsu D355a has high-tensile-strength steel in its moldboard and backplate. The tilt hose pipe is protected inside the frame from damage by run-over or crushing.
| Type | Overall Length | Blade Length | Blade Height | Max Lift | Max Drop | Max Tilt Adjust. | Weight | Ground Pressure |
| Tilt Dozer | 7375 mm | 4315 mm | 1875 mm | 1545 mm | 700 mm | 1000 mm | 7830 kg 17260 Ib | 0.22kg/cm2 3.12 PSI/21.6 kPa |
| Straight Dozer | 7375 mm | 4315 mm | 1875 mm | 1545 mm | 700 mm | 1000 mm | 7510 kg 16560 Ib | 0.21 kg/cm2 2.99 PSI/20.6 kPa |
| Angle Dozer | 7470 mm | 5230 mm | 1350 mm | 1640 mm | 720 mm | 550 mm | 7200 kg 15870 Ib | 0.20kg/cm2 2.84 PSI/19.6 kPa |
| U-Dozer | 7855 mm | 4715 mm | 1875 mm | 1545 mm | 700 mm | 1000 mm | 880 kg 1940 Ib | 0.24 kg/cm2 3.41 PSI/23.6 kPa |
| Cushion | 7305 mm | 3365 mm | 915 mm | 915 mm | 1240 mm | 320 mm | 6260 kg 13800 Ib | 0.18 kg/cm2 2.55 PSI/17.6 kPa |
Attachments
Rops Canopy
The d355a possesses extraordinary capabilities and is also a safe and secure piece of equipment. Because safety matters, this piece of construction equipment has attained the highest safety standards set by ISO, SAE. This piece of construction equipment has attained the ISO 3471, SAE J1040a, and SAEJ395a ROPS standards, as well as the ISO 3449 FOPS standard.
| US | Metric | |
|---|---|---|
| Weight | 3570 Ib | 1620 kg |
| ROPS Cab Weight | 5400 Ib | 2450 kg |
Multishank Ripper
Rigid Type
- Hydraulically controlled parallelogram-type ripper with 3 shanks
- Digging Angle: 45 degrees
- Weight: 6445 kg – 14210 Ib
- Beam Leght: 2854 mm – 9,4 inches
- Max. Lift Above Ground: 850 mm – 2,9′
- Max. Digging Depth: 1020 mm – 3,4′
Variable Type
- Hydraulically controlled parallelogram-type ripper with 3 shanks
- Digging Angle: 37 degrees to 61 degrees
- Weight: 6880 kg – 15170 Ib
- Beam Leght: 2854 mm – 9,4 inches
- Max. Lift Above Ground: 850 mm – 2,9′
- Max. Digging Depth: 1020 mm – 3,4′
Variable Giant Ripper
- Variable, parallelogram-type single-shank ripper ideal for digging up hard rocks.
- Digging Angle: 37 degrees to 61 degrees
- Weight: 5440 kg – 11990 Ib
- Beam Width: 1266 mm – 4 inches
- Max. Lift Above Ground: 1130 mm – 3,8′
- Max. Digging Depth: 1400 mm – 4,7′
Cushion Block
A rear-mounted cushion block is used for the tandem-tractor operation to push a motor scraper.
- Weight: 1430 kg – 3150 Ib
- Cushion Travel: 180 mm – 7,1′
- Compression: 66000 kg – 145000 Ib
Counterweight
- Type: Segment plate
- Weight: 3300 kg – 7230 Ib
Komatsu D355a was the most rugged of the 355s, and it was lighter than its brother, the D375A. The valve springs of the Komatsu D355a were a tad bit fussy, and they did not like to be left standing for too long. Only jerking them hard would get them to do their job. If you did not start it at least once a week, the valve springs of the Komatsu D355a would likely be damaged. This camshaft design flaw is a result of a damaged oil spray nozzle. The problem arises from using turbochargers at pressures that are too high, which creates an oil spray that is too large. The jets from the nozzle then do not have enough force to exit the piston chamber at a high enough speed. This problem can be solved very easily by simply reducing the oil spray to the correct diameter. This way, oil is still applied for cooling, but it doesn’t flow down to the turbine. This ensures that your turbocharger is not only operating at peak performance but also gives you peace of mind knowing that your engine will stay safe.
No matter what’s in your way, the Komatsu D355a can get you moving. With its powerful diesel engine and innovative Toroflow transmission, it eliminates the hassle of pumping hydraulic oil. The Komatsu D355a is a crawler, with big fat Funnels of exhausts, perfect for getting started in the construction business. When you need to get down and dirty, there’s no better buddy than the Komatsu D355a.
Affordable and reliable, the Komatsu D355A bulldozer is a favorite among contractors with moderate to high production demands. It features a two-stage final drive for better transmission of power to its blade and provides a smooth work cycle.
With the Komatsu D355A, you’ll get everything you need to take your workers safely and efficiently to where they need to be. At the touch of a button, you can adjust the direction of travel, raise or lower the dozer blade, and control engine speed. That means you can keep your operators working efficiently, whenever they’re ready. The Komatsu D355a bulldozer is what you need if you want to get the job done fast.Komatsu D355a Review
Performance
Features
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The information presented here will help you decide if this product is the best fit for your situation. Though we do our best to provide all the information you need, things can always change. So be sure to do your own research before purchasing a vehicle, because the information in this review may become outdated over time. If you would like exact details, please contact the vendor directly. If you need Komatsu D355a manual, please specify by commenting.
