Used Caterpillar 336D2 Excavator

Reading: 2016

Detailed Introduction of Caterpillar 336D2 Hydraulic Excavator

The Caterpillar 336D2 is a 36-ton class heavy-duty hydraulic excavator under Caterpillar’s classic D2 product line, upgraded from the earlier 336D model. It balances strong power output, high fuel efficiency, and extreme durability, and is widely used in harsh construction scenarios around the world. A cost-optimized variant, the 336D2 GC, is also available for light-to-medium duty earthmoving scenarios.

1. Core Specifications

Parameter	Details
Operating Weight	33,800 – 37,800 kg (varies with bucket, track, and cab configurations)
Engine Model	Cat C9 ACERT™ in-line 6-cylinder diesel engine
Rated Net Power	209 kW (280 hp) @ 1,800 rpm
Emission Standard	EU Stage IIIA / U.S. EPA Tier 3, compliant with non-road mobile machinery emission regulations for most emerging markets
Bucket Capacity	1.4 – 2.5 m³, optional with general-purpose bucket, rock bucket, heavy-duty digging bucket, etc.
Max Digging Depth (standard 3.2m arm)	6,740 mm
Max Reach at Ground Level	10,670 mm
Max Bucket Breakout Force	233 kN
Max Swing Speed	10 rpm
Max Travel Speed	5.5 km/h

2. Power & Working Efficiency

The Cat C9 ACERT engine features high low-speed torque and 35% torque reserve, delivering stable power output even under heavy-load operations such as hard rock digging and large-volume material loading. It is matched with Caterpillar’s exclusive intelligent power control system, which dynamically adjusts engine output based on actual working load, reducing unnecessary power loss:

2 optional working modes: Power Mode for full-power output under harsh rock/quarry scenarios, and Economy Mode to cut fuel consumption by 5-8% without obvious efficiency loss for common earthmoving works;
Built-in auto-idle and auto-shutdown functions, which automatically reduce engine speed or shut down the engine during long standby periods to lower fuel waste.

3. Hydraulic System

The 336D2 adopts a load-sensing, flow-sharing hydraulic system with a maximum total pump flow of 560 L/min and rated working pressure of 35 MPa:

Smooth compound movement coordination: simultaneous actions such as digging, swinging, and boom lifting run without lag or jitter, improving operation precision and cycle efficiency;
Equipped with hydraulic buffer valves on the boom, arm, and swing circuits to reduce impact on components and extend hydraulic system service life;
Reserved auxiliary hydraulic interfaces support extended attachments including hydraulic breakers, grapples, shears, and rippers, adapting to diversified operation demands.

4. Structural Durability

Caterpillar’s industry-leading structural design ensures the 336D2 adapts to long-term extreme working conditions:

The main frame, boom, and stick are welded with high-strength low-alloy steel, and all welded joints go through 100% stress relief and fatigue testing, with service life 20% higher than the industry average for the same class;
Heavy-duty sealed track chain with wear-resistant coating on supporting rollers and idlers, optional with single-grouser, triple-grouser, or rubber-padded track shoes for muddy, rocky, or paved ground;
Sealed electrical circuits and waterproof connectors prevent dust and water intrusion, adapting to high-temperature, high-humidity, and high-dust working environments.

5. Operator Comfort & Safety

The cab is ROPS/FOPS certified (rollover protection / falling object protection) to guarantee operator safety:

Pressurized and sound-insulated cab design, with internal noise lower than 75 dB(A);
Multi-adjustable air-suspension seat with optional heating function, reducing fatigue during long-hour operation;
Low-effort pilot control levers and high-definition LCD monitor, which displays real-time data including fuel consumption, working hours, fault codes, and hydraulic oil temperature;
Optional rear-view camera and perimeter lighting system to eliminate operation blind spots in low-light or narrow construction sites.

6. Maintenance Cost Optimization

All daily maintenance points are designed to be accessible from the ground, avoiding high-altitude operation during routine checks:

Dual-stage air filter with long service life, suitable for dusty scenarios, with a replacement cycle of 1,000 working hours;
Hydraulic oil replacement cycle reaches 5,000 working hours, and engine oil replacement cycle is 500 working hours when using Caterpillar dedicated DEO lubricant;
Standard equipped with Cat Product Link™ remote monitoring system, which supports real-time tracking of equipment location, working status, fuel consumption, and fault warning, helping fleet managers arrange maintenance in advance and reduce unplanned downtime.

7. Typical Application Scenarios

Heavy earthmoving works: foundation excavation, site leveling, subgrade construction for large infrastructure projects;
Quarry and mining: rock stripping, ore loading, and breaking operations matched with hydraulic breakers;
Demolition: building demolition works matched with hydraulic shears and crushing attachments;
Material handling: bulk cargo loading in ports and stockyards, timber and steel grabbing;
Municipal engineering: pipeline excavation, waste treatment, and landscaping works.

The Caterpillar 336D2 is one of the best-selling models in its class globally, renowned for its ultra-high reliability, low operating cost, and strong adaptability to harsh scenarios, and is a preferred choice for heavy-duty construction operations.

Non flooded

No accident

Original product

Used Caterpillar 336D2 Excavator

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