Used Caterpillar 320D2L Excavator

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Detailed Introduction to CATERPILLAR 320D2L Crawler Excavator

The Caterpillar 320D2L is a 20-ton class heavy-duty crawler excavator under Cat’s classic D2 product line, upgraded from the best-selling 320D model, and optimized for high reliability, low operating cost and adaptability to harsh working conditions, especially for markets with variable fuel quality and complex construction scenarios. The suffix "L" stands for long undercarriage, which delivers lower ground pressure and better stability on soft terrain.

1. Core Specifications

Parameter	Detailed Data
Operating Weight	20,500 – 22,000 kg
Ground Pressure (standard track)	~42 kPa
Engine	Cat C7.1 ACERT 6-cylinder turbocharged intercooled diesel engine
Rated Net Power	104 kW (140 hp) @ 2000 rpm, meets Stage II/Tier 2 or Stage IIIA/Tier 3 emission standards per regional requirements
Bucket Capacity	0.8 – 1.2 m³ (customizable for heavy-duty rock buckets, gravel buckets, etc.)
Max. Digging Depth	6,720 mm (standard boom/stick)
Max. Digging Radius	9,850 mm
Max. Dumping Height	6,510 mm
Travel Speed (max.)	5.5 km/h
Swing Speed	11.5 rpm
Max. Climbing Ability	35° (70% grade)
Main Hydraulic Pump Flow	2 × 215 L/min

2. Performance Highlights

2.1 High Efficiency & Fuel Saving

The C7.1 ACERT engine adopts optimized combustion technology, equipped with a 2-stage fuel filtration system that adapts to low-quality diesel (sulfur content up to 5000 ppm), reducing fuel system failure rate in underdeveloped regions.
3 optional power modes (High Power, Standard Power, Economy Mode) allow operators to adjust output according to working conditions, cutting fuel consumption by 8~10% compared with the previous 320D model without sacrificing working efficiency.
Load-sensing, pressure-compensated hydraulic system delivers precise and smooth compound movements (e.g., simultaneous boom lifting and swing), eliminating operation lag and improving operation accuracy for fine works like trenching and leveling.
Auto-idle and auto-shutdown functions reduce unnecessary fuel waste during standby.

2.2 Ultra-high Durability

The front work group (boom, stick) is welded with high-strength tensile steel, passed 1 million+ fatigue load tests, and adapts to long-term heavy-load operations in quarries, mines and demolition sites.
X-type box-section lower frame has strong torsion resistance, and the heavy-duty sealed and lubricated track chain extends service life by 30% compared with ordinary tracks. Reinforced track shoes, carrier rollers and idlers are all designed for impact and wear resistance.
The full-steel body shell is corrosion-resistant, suitable for high-salt, high-humidity working environments.

3. Operator Comfort & Safety

The cab is certified with ROPS (Roll-Over Protective Structure) and FOPS (Falling Object Protective Structure), which effectively protects operator safety in case of rollover or falling objects.
The sound-insulated and shock-absorbed cab has an interior noise level lower than 78 dB(A), which is 15% quieter than similar products of the same class.
Ergonomic design includes a fully adjustable suspended seat with lumbar support, pilot control levers arranged within easy reach, and a high-definition LCD monitor that displays real-time data such as fuel consumption, maintenance reminders and fault codes.
Multi-port high-efficiency air conditioning system, USB charging port, large storage space and cup holder improve long-time operation comfort.
Ultra-wide frameless glass provides 360° panoramic visibility, and optional rear view camera eliminates blind spots during reversing and turning.

4. Low Total Cost of Ownership

Extended maintenance intervals: 500 hours for engine oil and filter replacement, 1000 hours for air filter replacement, 5000 hours for hydraulic oil replacement, greatly reducing regular maintenance cost and downtime.
All maintenance points are centrally arranged and accessible at ground level, no need to climb to the top of the machine for daily inspection and maintenance.
Optional Cat Product Link telematics system supports remote monitoring of equipment location, working hours, fuel consumption and fault warnings, which is convenient for fleet management and predictive maintenance.
Caterpillar’s global dealer network provides 24/7 after-sales support and original spare parts supply, and the 320D2L has a 15~20% higher second-hand residual value than competing products in the same class.

5. Typical Applications

The 320D2L is compatible with a wide range of attachments (rock breaker, log grab, hydraulic shear, ripper, etc.), and is suitable for scenarios including: