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Caterpillar M320 Tier 3 Wheel Excavator - Reliable Heavy-Duty Earthmoving Equipment from China Suppliers and Factory
Benefits
Ease of Use
Engineered for smooth, precise operation, featuring a long-wheelbase undercarriage and user-friendly controls to support efficient performance.
High Performance
Achieve superior productivity with up to 17% greater stability, enabling safe, confident handling of heavy loads.1
¹Compared to M320 (04B). Stability improvement estimated from lift chart data.
Low Maintenance Costs
Enjoy up to 17% lower maintenance expenses plus improved fuel efficiency, boosting productivity while reducing total operating costs.2
Features At A Glance
Do More with Less Fuel
Low Maintenance Costs
Work in Comfort
Simple To Operate
Safety Features
Sustainability
Specifications
| Engine | |
| Engine Power – ISO 14396 | 129 kW |
| Engine Power – ISO 14396 (DIN) | 176 hp (metric) |
| Engine Model | Cat® C4.4 |
| Net Power – ISO 9249 | 128 kW |
| Net Power – ISO 9249 (DIN) | 174 hp (metric) |
| Bore | 105 mm |
| Stroke | 127 mm |
| Displacement | 4.4 l |
| Biodiesel Capability | Up to B20¹ |
| Emissions | Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA. |
| Note (1) | Net power advertised is the power available at the flywheel when engine is equipped with fan, air cleaner, Clean Emission Module (CEM) exhaust gas aftertreatment, alternator, and cooling fan running at intermediate speed. Rated speed 2,000 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture. |
| Note (2) | ¹Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: 100% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or "Caterpillar Machine Fluids Recommendations" (SEBU6250) for details. *For use of blends higher than 20% biodiesel, consult your Cat dealer. **Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. |
| Machine Weight | |
| Operating Weight Maximum | 21,500 kg |
| Operating Weight Minimum | 20,000 kg |
| Note (1) | Operating weight includes full fuel tank, operator, General Duty (GD) bucket and dual pneumatic tires. Weight varies depending on configuration. Typical configurations include 2.92 m (9'7") stick and 4000 kg (8,800 lb) counterweight. |
| Drive | |
| Maximum Travel Speed | 35 km/h |
| Hydraulic System | |
| Main System – Maximum Flow – Implement | 429 L/min |
| Maximum Pressure – Implement Circuit – Normal | 35,000 kPa |
| Maximum Pressure – Implement Circuit – Heavy Lift | 37,000 kPa |
| Maximum Pressure – Implement Circuit – Travel Circuit | 35,000 kPa |
| Swing Mechanism | |
| Maximum Swing Speed | 11 r/min |
| Maximum Swing Torque | 62 kN·m |
| Service Refill Capacities | |
| Fuel Tank | 338 l |
| Cooling System | 29 l |
| Hydraulic Tank | 151 l |
| Hydraulic System – Including Tank | 270 l |
| Dimensions | |
| Boom | One-Piece Boom 5.7 m (18'7") |
| Stick | 2.92 m (9'7") |
| Bucket | General Duty (GD) 1.19 m³ (1.56 yd³) |
| Shipping Height – Top of Cab | 3,355 mm |
| Shipping Length | 9,600 mm |
| Support Point | 2,860 mm |
| Tail Swing Radius | 2,817 mm |
| Counterweight Clearance | 1,316 mm |
| Ground Clearance | 325 mm |
| Undercarriage Length | 5,160 mm |
| Wheel Base | 2,800 mm |
| Working Ranges and Forces | |
| Boom | One-Piece Boom 5.7 m (18'7") |
| Stick | 2.92 m (9'7") |
| Bucket | General Duty (GD) 1.19 m³ (1.56 yd³) |
| Digging Height | 9,740 mm |
| Dump Height | 6,780 mm |
| Maximum Digging Depth | 6,430 mm |
| Maximum Vertical Wall Digging Depth | 5,413 mm |
| Maximum Reach at Ground Line | 9,880 mm |
| Stick Forces (ISO) | 102 kN |
| Bucket Forces (ISO) | 120 kN |
| Note (1) | All dimensions are approximate. Values are with 10.00-20 Dual Pneumatic Tires. |
| Air Conditioning System | |
| Note | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1 kg (2.2 lb) of refrigerant, which has a CO₂ equivalent of 1.216 metric tonnes (1.340 tons). |
Frequently Asked Questions
What engine does the Cat M320 Tier 3 Wheel Excavator use?
The Cat M320 Tier 3 is powered by the Cat® C4.4 engine, delivering 129 kW (176 hp metric) of engine power per ISO 14396, and 128 kW (174 hp metric) net power per ISO 9249, with a rated speed of 2,000 rpm.
What emission standards does the M320 Tier 3 meet?
The M320 Tier 3 meets Brazil MAR-1 emission standards, which are equivalent to U.S. EPA Tier 3 and EU Stage IIIA regulations, ensuring compliance across multiple global markets.
How much does the Cat M320 Tier 3 Wheel Excavator weigh?
The operating weight ranges from a minimum of 20,000 kg to a maximum of 21,500 kg, depending on configuration. Typical configurations include a 2.92 m stick and 4,000 kg counterweight with dual pneumatic tires and a full fuel tank.
What is the maximum travel speed of the M320 Tier 3?
The Cat M320 Tier 3 Wheel Excavator has a maximum travel speed of 35 km/h, making it well-suited for road travel between job sites without requiring a transport vehicle.
What are the key digging performance figures for the M320 Tier 3?
With a one-piece 5.7 m boom and 2.92 m stick, the M320 Tier 3 achieves a maximum digging depth of 6,430 mm, a maximum reach at ground line of 9,880 mm, stick forces of 102 kN, and bucket forces of 120 kN (ISO).
Is the Cat M320 Tier 3 compatible with biodiesel or alternative fuels?
Yes. The Cat C4.4 engine supports biodiesel blends up to B20 as standard. Cat engines are also compatible with up to 100% biodiesel FAME, 100% renewable diesel (HVO), and GTL fuels. For blends above 20% biodiesel, consult your local Cat dealer for guidance.