Used Caterpillar 336D Excavator

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Caterpillar 336D Crawler Excavator Detailed Introduction

The Caterpillar 336D is a 36-ton class heavy-duty crawler excavator, a flagship model in Caterpillar’s iconic D-series excavator lineup. It is engineered to deliver high productivity, exceptional durability, and low operating costs for demanding work scenarios, and is one of the most widely used large excavators in global construction, mining and quarrying markets.

1. Core Specifications

Parameter	Specification
Operating Weight	33,800 – 37,800 kg (74,500 – 83,300 lbs)
Engine	Caterpillar C9 ACERT 6-cylinder turbocharged aftercooled diesel engine
Net Rated Power	200 kW (268 hp) at 1,800 rpm
Emission Standard	Meets U.S. EPA Tier 3, EU Stage IIIA and equivalent global emission regulations
Bucket Capacity	1.4 – 2.5 m³ (1.8 – 3.3 yd³)
Max Digging Depth (standard boom/stick)	7,390 mm (24 ft 3 in)
Max Digging Reach	10,920 mm (35 ft 10 in)
Max Dump Height	7,290 mm (24 ft 3 in)
Travel Speed	3.2 – 5.5 km/h (2.0 – 3.4 mph)
Drawbar Pull	290 kN (65,200 lbf)
Bucket Digging Force	Up to 231 kN (51,900 lbf)
Stick Digging Force	Up to 180 kN (40,500 lbf)

2. Performance Advantages

2.1 High-Efficiency Powertrain

The C9 ACERT engine is optimized for low-end torque output, providing strong power support for heavy digging and lifting operations. It reduces fuel consumption by up to 10% compared to the older generation 330C model under the same workload. The built-in Adaptive Engine Speed Control (AESC) automatically adjusts RPM based on real-time load demand, minimizing unnecessary fuel waste during idle or light-duty tasks.

2.2 Precision Hydraulic System

Equipped with a load-sensing hydraulic system with independent flow distribution, it supports simultaneous operation of the boom, stick and bucket without power loss, delivering smooth and responsive control. The total hydraulic flow reaches 2×220 L/min, with a system pressure of 35,000 kPa. It also has a dedicated Heavy Lift mode, which temporarily increases hydraulic pressure to improve stability when lifting heavy loads such as large pipes and concrete segments.

2.3 Operator-Centric Cab Design

The cab is ROPS/FOPS certified (Roll-Over Protective Structure / Falling Object Protective Structure) to ensure maximum operator safety. It is equipped with a fully adjustable heated air-suspension seat, low-effort joystick controls with adjustable sensitivity, automatic climate control, and a 7-inch LCD monitor that displays real-time machine performance, fault alerts and maintenance reminders. The operating noise inside the cab is controlled below 78 dB(A), and large panoramic windows + optional rearview camera provide 360° visibility of the work area, reducing operator fatigue during long shifts.

3. Durability & Operating Cost Advantage

All key structural components (boom, stick, upper frame, undercarriage) are made of high-tensile steel, and have passed rigorous fatigue testing to withstand long-term heavy load impacts in quarry and mining environments.
The heavy-duty undercarriage adopts sealed and lubricated track chains, wear-resistant track shoes and robust rollers, extending the undercarriage service life by 20% compared with standard designs.
All daily maintenance points (fuel filters, oil filters, hydraulic fluid ports, grease points) are accessible from ground level, reducing routine service time by 30%. The engine oil change interval is 500 working hours, and the hydraulic oil change interval is 5,000 working hours, greatly reducing long-term operating costs.
Optional Cat Product Link telematics system supports remote monitoring of machine location, fuel consumption, working hours and fault codes, enabling proactive maintenance and reducing unplanned downtime.

4. Application Versatility

The 336D is compatible with a wide range of Caterpillar work tools to adapt to different job requirements:

General/heavy-duty rock buckets for earthmoving and quarry digging
Hydraulic breakers for concrete demolition and rock breaking
Grapples for scrap handling and forestry logging
Augers for foundation drilling
Rippers for frozen ground or hard rock looseningIt also supports customized configurations such as long-reach boom and mass excavation boom for special projects including deep digging, river dredging and large-scale earthmoving.

Note: The 336D was later upgraded to 336D2 and 336GC models in Caterpillar's product line, with further optimized fuel efficiency and emissions to meet newer global regulatory requirements. The classic 336D is still widely used in secondary markets worldwide for its high reliability and high resale value.

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Used Caterpillar 336D Excavator

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