320D2 (Tier 3)

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Overview

The 320D2 is configured for heavy construction, and it will deliver great fuel savings and productivity in truck loading, trenching, and lifting.

Engine

Units:
Engine Model Cat C7.1 Cat C7.1 Less
Net Flywheel Power 146.0 hp 109.0 kW Less
Bore 4.13 in 105.0 mm Less
Stroke 5.31 in 135.0 mm Less
Displacement 428.0 in3 7.01 L Less
Engine Power – ISO 14396 150.0 hp 112.0 kW Less
Net Power – SAE J1349 146.0 hp 109.0 kW Less
Emissions The 320D2 meets China Nonroad Stage III emission standards. The 320D2 meets China Nonroad Stage III emission standards. Less
Note Net power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, muffler and alternator. Net power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, muffler and alternator. Less
Note The altitude capability (without aid) of 320D2 is up to 4000 m (13,123 ft) with natural power derate above sea level. The altitude capability (without aid) of 320D2 is up to 4000 m (13,123 ft) with natural power derate above sea level. Less
Note Rating at 1,800 rpm. Rating at 1,800 rpm. Less
Engine RPM – Operation 1700.0 rpm 1700.0 rpm Less
Engine RPM – Travel 1800.0 rpm 1800.0 rpm Less

Weights

Operating Weight 47800.0 lb 21700.0 kg Less
Minimum Operating Weight* 46700.0 lb 21200.0 kg Less
Maximum Operating Weight** 47800.0 lb 21700.0 kg Less
Note *R5.7 (18'8") HD Reach Boom, R2.5 (8'2") B1 HD Reach stick, HD 1.00 m3 (1.3 yd3) bucket and Standard undercarriage with 600 mm (24") shoes. *R5.7 (18'8") HD Reach Boom, R2.5 (8'2") B1 HD Reach stick, HD 1.00 m3 (1.3 yd3) bucket and Standard undercarriage with 600 mm (24") shoes. Less
Note **R5.7 (18'8") HD Reach Boom, R2.9 (9'6") B1 HD Reach stick, HD 1.00 m3 (1.3 yd3) bucket and Standard undercarriage with 790 mm (31") TG shoes. **R5.7 (18'8") HD Reach Boom, R2.9 (9'6") B1 HD Reach stick, HD 1.00 m3 (1.3 yd3) bucket and Standard undercarriage with 790 mm (31") TG shoes. Less

Service Refill Capacities

Fuel Tank Capacity 108.3 gal 410.0 L Less
Cooling System 6.6 gal 25.0 L Less
Engine Oil 5.8 gal 22.0 L Less
Swing Drive 2.1 gal 8.0 L Less
Hydraulic System (including tank) 68.7 gal 260.0 L Less
Hydraulic Tank 36.5 gal 138.0 L Less
Final Drive 2.1 gal 8.0 L Less

Swing Mechanism

Swing Speed 10.9 rpm 10.9 rpm Less
Maximum Swing Torque 52367.0 lbf-ft 71.0 kN·m Less

Drive

Maximum Drawbar Pull 46086.0 lbf 205.0 kN Less
Maximum Travel Speed – High 3.4 mph 5.4 km/h Less
Maximum Gradeability 35°/70% 35°/70% Less

Hydraulic System

Main System – Maximum Flow (total) 106.7 gal/min 404.0 L/min Less
Maximum Pressure – Equipment 5076.0 psi 35.0 MPa Less
Maximum Pressure – Swing 3626.0 psi 25.0 MPa Less
Maximum Pressure – Travel 5076.0 psi 35.0 MPa Less

Sound Performance

ISO 6395 (external) 102.0 dB(A) 102.0 dB(A) Less
ISO 6396 (inside cab) 72.0 dB(A) 72.0 dB(A) Less
Note When properly installed and maintained, the cab offered by Caterpillar, when tested with doors and windows closed according to ANSI/SAE J1166 OCT98. When properly installed and maintained, the cab offered by Caterpillar, when tested with doors and windows closed according to ANSI/SAE J1166 OCT98. Less
Note Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment. Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment. Less

Standards

Brakes ISO 10265:2008 ISO 10265:2008 Less
Cab/FOGS SAE J1356 MAR2013. ISO 10262:1998 SAE J1356 MAR2013. ISO 10262:1998 Less

Working Ranges: HD Reach Boom 5.7 m (18'8"); R2.9 (9'6") B1 HD Stick

Bucket Tip Radius 5.08 ft 1560.0 mm Less
Maximum Digging Depth 22.08 ft 6720.0 mm Less
Maximum Reach at Ground Line 32.42 ft 9890.0 mm Less
Maximum Loading Height 21.33 ft 6490.0 mm Less

Working Ranges: HD Reach Boom 5.7 m (18'8"); R2.5 (8'2") B1 HD Stick

Bucket Tip Radius 5.08 ft 1560.0 mm Less
Maximum Digging Depth 20.67 ft 6300.0 mm Less
Maximum Reach at Ground Line 31.08 ft 9470.0 mm Less
Maximum Loading Height 20.67 ft 6290.0 mm Less

Performance

  • The Cat® C7.1 mechanically controlled engine meets China Nonroad Stage III emission standards.
  • The low-pressure fuel system allows the engine to be more robust in areas with low-quality fuel.
  • The high-efficiency main pump delivers superior power for best‑in‑class performance.
  • Economy mode burns less fuel than the previous generation 320D2 with no loss in lift or dig force.
  • The variable-speed fan with viscous clutch reduces fuel consumption.

Versatility

  • Utility and finishing work are fast and flawless with Cat buckets, thumbs, and compactors.
  • Demolition work is quick and easy with Cat hammers, grapples, shears, and multi-processors.
  • Cat couplers let you swap between attachments in seconds without leaving the cab.
  • See the whole attachment line for your machine at www.cat.com/attachments.

Safety

  • The hydraulic activation lever safely locks out all hydraulic functions.
  • Anti‐skid plating and countersunk bolts reduce slipping in severe conditions and during routine checks.
  • A full-length firewall separates the pump compartment from the engine.
  • A ground-level fuel cutoff switch shuts down the engine in an emergency.

Durability

  • The 320D2 has the largest structures in its size class.
  • The modified X-frame structure provides long life and durability.
  • Heavy-duty booms and sticks are built for tough work.
  • Greased track link between pins and bushings increases undercarriage life and reduces noise.

Ease of Operation

  • The cab is ergonomically designed with easy-to-operate controls.
  • Multiple seat and joystick adjustment options enhance comfort.
  • Excellent work site visibility from the cab enhances productivity and safety.
  • Optimized low-effort joystick controls reduce operator fatigue.

Maintenance

  • Most service locations can be accessed at ground level.
  • The number of fuel filters are reduced from four to two with 500 hour service intervals to lower operational cost.
  • Filters are grouped together to reduce maintenance time.
  • Pressure taps and S·O·SSM ports help maximize uptime.

Technology

  • Integrated Cat technology solutions increase production and minimize operating costs.
  • Product Link™ reports key information from the machine to any location.