Used Caterpillar 336D Excavator

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Detailed Introduction to Caterpillar 336D Crawler Excavator

The Caterpillar 336D is a classic 36-ton heavy-duty crawler excavator under Caterpillar’s D-series product line, launched in 2006 as a benchmark product for medium-to-heavy construction scenarios. It is globally recognized for its high durability, fuel efficiency and operational reliability, and remains one of the highest-owned excavator models in the 30-40 ton class up to now.

1. Core Specifications (standard configuration, adjustable for different working attachments)

Item	Parameter
Operating Weight	36,200 kg – 38,500 kg
Net Rated Power	200 kW (268 hp) @ 1800 rpm
Bucket Capacity	1.6 m³ – 3.8 m³ (optional for general excavation, heavy mining, rock breaking etc.)
Max. Digging Depth	7,390 mm (standard boom/arm)
Max. Digging Reach	10,920 mm
Max. Dumping Height	7,230 mm
Swing Speed	10 rpm
Max. Travel Speed	5.5 km/h
Fuel Tank Capacity	620 L
Hydraulic Oil Capacity	240 L
Gradeability	70% (35°)

2. Powertrain System

The 336D is equipped with Caterpillar’s independently developed C9 ACERT 6-cylinder 4-stroke diesel engine, which meets US EPA Tier 3 and EU Stage IIIA emission standards:

Adopts high-pressure common rail fuel injection technology and electronic engine control system, which automatically adjusts fuel supply according to actual load, reducing fuel consumption by 8-12% compared with the previous generation 330D model.
Built-in automatic idle and engine shutdown functions: When the equipment is in no-load state for more than the set time, it will automatically reduce the speed or shut down to avoid unnecessary fuel waste.
Excellent low-temperature start performance, supports normal start-up in -32℃ environment without additional preheating devices, and the engine overhaul interval can reach 12,000 working hours under proper maintenance.

3. Hydraulic System

It adopts Caterpillar’s proprietary load-sensing hydraulic system, which ensures smooth and efficient compound operation:

The dual main pump provides a total flow of 560 L/min, which matches the engine power perfectly, and supports simultaneous smooth operation of boom lifting, arm retracting and upper structure swinging without jamming.
Equipped with boom and stick regeneration valves, which recycle hydraulic oil during the descending process of the working device, reducing the load of the main pump and further lowering energy consumption.
The hydraulic system is equipped with a high-efficiency filtration system, and the hydraulic oil replacement interval reaches 4,000 working hours, which greatly reduces maintenance costs.

4. Heavy-duty Structural Design

The whole machine is designed for harsh working conditions such as mines and heavy earthworks:

The undercarriage adopts a high-strength X-shaped frame structure, which has excellent torsion and impact resistance, and can adapt to long-term operation on uneven rock ground. The track is available in standard, wide and mining wear-resistant versions to meet the needs of different scenarios.
The boom and stick are welded with high-tensile steel, and have passed strict stress and fatigue tests, which can support the installation of heavy attachments such as hydraulic breakers, rippers and large-capacity mining buckets.
The bucket is reinforced with wear-resistant plates at the bottom and edge, and the service life is 30% longer than that of ordinary buckets when excavating hard soil and ore.

5. Operator Comfort & Safety

The cab is certified by ROPS (Roll-over Protective Structure) and FOPS (Falling Object Protective Structure), which can effectively protect the safety of operators in case of rollover or falling objects.
The interior adopts sound insulation and shock absorption design, the operating noise is lower than 75 dB(A), the seat is a fully adjustable air suspension seat, and the ergonomic control joystick has small operating force, which reduces the fatigue of long-term operation.
The full-color LCD monitor displays real-time operating parameters, fault codes and maintenance reminders in real time, and optional rear view camera, swing alarm and travel alarm functions further improve operation safety.

6. Main Application Scenarios

Large-scale infrastructure construction: highway, railway, bridge and airport foundation excavation
Mining operations: surface mining stripping, ore loading and transporting
Water conservancy and hydropower projects: reservoir excavation, dam construction
Urban demolition and renovation: equipped with hydraulic breaker for building demolition, waste clearing
Port and wharf: bulk cargo (coal, sand, ore) loading and unloading

7. Maintenance & Cost Advantage

All daily maintenance points are arranged at the ground accessible position, no need to climb to the top of the equipment for inspection, which greatly improves maintenance efficiency.
The oil and oil filter replacement interval is 500 working hours, and the air filter replacement interval is 2,000 working hours, which reduces the downtime caused by maintenance.
Supported by Caterpillar’s global after-sales service network, spare parts supply is sufficient, and the residual value of second-hand equipment is 10-15% higher than similar products of other brands, which greatly reduces the total cost of ownership in the whole life cycle.

Conclusion

The Caterpillar 336D balances high operating efficiency, durability and low operating cost, and is suitable for almost all heavy construction scenarios, making it the preferred model for construction contractors around the world.

Non flooded

No accident

Original product

Used Caterpillar 336D Excavator

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