322

Medium Excavators 322

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Key Specs

Net Power - ISO 9249
129 hp
96 kW
Operating Weight
45,700 lb
20700 kg
Maximum Digging Depth
20.7 ft
6310 mm

Overview

Profit-Driven Powerhouse for Heavy Loads

When you need muscle, precision, and cost control in one machine, the Cat® 322 excavator delivers. Purpose-built for high production, the 322 pairs fast cycle times with large bucket options to move more material in fewer passes. Its responsive electrohydraulic controls and rugged design keep you productive on the tough jobs, while smart fuel efficiency and streamlined maintenance help you stay profitable every step of the way. Whether you’re loading, trenching, or lifting, the 322 is a heavy-duty workhorse that pays you back.

Benefits

Built to Move More

The turbocharged Cat C3.6 engine delivers powerful swing torque, rapid cycle times, and deep digging capabilities for high-volume production. Smart ECM and precision hydraulics work together to optimize fuel use and accelerate cycle times, boosting productivity while lowering operating costs.
 

Rugged | Reliable | Durable

The 1.14 m³ (1.49 yd³) and 1.2 m³ (1.57 yd³) General Duty buckets, along with the 1.1 m³ (1.44 yd³) Severe Duty bucket are designed to handle tough materials, such as rock and gravel, with ease. With two robust undercarriage options, proven powertrain, and high swing torque, the 322 delivers fast cycles and reliable performance in demanding conditions.

Designed for Uptime

Shared Cat components and extended service intervals simplify maintenance, reduce downtime, and lower operating costs. Heavy-duty structures, a reliable Cat engine, and an efficient electrohydraulic system deliver enhanced fuel efficiency, increased uptime, and improved durability.

Product Specifications for 322

Net Power - ISO 9249 129 hp 96 kW
Net Power - ISO 9249 (DIN) 131 hp (metric) 131 hp (metric)
Engine Model Cat® C3.6 Cat® C3.6
Engine Power - ISO 14396 134 hp 100 kW
Engine Power - ISO 14396 (DIN) 136 hp (metric) 136 hp (metric)
Bore 4 in 98 mm
Stroke 5 in 120 mm
Displacement 220 in³ 3.6 l
Biodiesel Capability Up to B20¹ Up to B20¹
Emissions Non-certified emission engine. Non-certified emission engine.
Note (1) Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system and alternator with rated engine speed at 2,000 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture. Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system and alternator with rated engine speed at 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. 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.
Operating Weight 45,700 lb 20700 kg
Note 4.25 m (13'11") Medium undercarriage, 5.7 m (18'8") Reach boom, Heavy Duty (HD) R2.5 (8'2") stick, 1.10 m3 (1.44 yd3) Severe Duty (SD) bucket, 600 mm (24") triple grouser track shoes and 4000 kg (8,820 lb) counterweight. 4.25 m (13'11") Medium undercarriage, 5.7 m (18'8") Reach boom, Heavy Duty (HD) R2.5 (8'2") stick, 1.10 m3 (1.44 yd3) Severe Duty (SD) bucket, 600 mm (24") triple grouser track shoes and 4000 kg (8,820 lb) counterweight.
Maximum Digging Depth 20.7 ft 6310 mm
Boom Reach 5.7 m (18'8") Reach 5.7 m (18'8")
Stick HD Reach 2.5 m (8'2") HD Reach 2.5 m (8'2")
Bucket SD 1.10 m³ (1.44 yd³) SD 1.10 m³ (1.44 yd³)
Maximum Reach at Ground Level 31.1 ft 9470 mm
Maximum Cutting Height 30.6 ft 9330 mm
Maximum Loading Height 20.6 ft 6280 mm
Minimum Loading Height 8.5 ft 2580 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 20 ft 6120 mm
Maximum Vertical Wall Digging Depth 18.5 ft 5630 mm
Bucket Digging Force - ISO 28710 lbf 128 kN
Stick Digging Force - ISO 24500 lbf 109 kN
Main System - Maximum Flow 442 l/min (117 gal/min) 442 l/min (117 gal/min)
Maximum Pressure - Equipment 5075 psi 35000 kPa
Maximum Pressure - Travel 5075 psi 35000 kPa
Maximum Pressure - Swing 3625 psi 25000 kPa
Swing Speed 11.5 r/min 11.5 r/min
Maximum Swing Torque 50560 lbf·ft 69 kN·m
Fuel Tank Capacity 97.7 gal (US) 370 l
Cooling System 5.8 gal (US) 22 l
Engine Oil 2.9 gal (US) 11 l
Swing Drive - Each 1.6 gal (US) 6 l
Final Drive - Each 1.3 gal (US) 5 l
Hydraulic System - Including Tank 57.6 gal (US) 218 l
Hydraulic Tank 30.4 gal (US) 115 l
Boom Reach 5.7 m (18'8") Reach 5.7 m (18'8")
Stick HD Reach 2.5 m (8'2") HD Reach 2.5 m (8'2")
Bucket SD 1.10 m³ (1.44 yd³) SD 1.10 m³ (1.44 yd³)
Shipping Height - Top of Cab 11 ft 3360 mm
Handrail Height 9.9 ft 3030 mm
Shipping Length 31.2 ft 9520 mm
Tail Swing Radius 9.3 ft 2830 mm
Counterweight Clearance 3.4 ft 1030 mm
Ground Clearance 1.4 ft 440 mm
Track Length 13.9 ft 4250 mm
Length to Center of Rollers 11.3 ft 3450 mm
Track Gauge 7.8 ft 2380 mm
Transport Width 9.8 ft 2980 mm

322 Standard Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

BOOM, STICK AND LINKAGE

  • 5.7 m (18'8") Reach boom
  • 2.5 m (8'2") HD Reach stick
  • Bucket linkage, B1 family with lifting eye

CAB

  • Sound suppressed cab with viscous mounts
  • Mechanical-suspension seat with headrest and armrest angle adjustment
  • High-resolution 203 mm (8") LCD touchscreen monitor
  • Keyless push to start engine control
  • AM/FM Bluetooth® radio with USB/Auxiliary ports
  • Cup holder and storage compartments
  • Upper radial wiper with washer
  • Openable steel hatch
  • Washable floor mat
  • 51 mm (2") orange seat belt

CAT TECHNOLOGY

  • VisionLink™

ELECTRICAL SYSTEM

  • Two 750 CCA maintenance free batteries
  • Centralized electrical disconnect switch
  • LED chassis and cab lights
  • LED left-side boom light

ENGINE

  • Cat C3.6 single turbo diesel engine
  • Three selectable modes: Power, Smart, Eco
  • One touch low idle with auto engine speed control (AEC)
  • Two stage fuel filtration system with water separator and indicator
  • 4000 m (13,120 ft) altitude capability with derate from 3000 m (9,840 ft)
  • 52°C (125° F) high-ambient cooling capacity with derate above 48° C (118° F)
  • -10° C (14° F) cold start capability
  • 100 Amp alternator
  • Radial sealed double element air filter
  • Electric fuel priming pump

HYDRAULIC SYSTEM

  • Electronic main control valve, hammer ready
  • Boom and stick regeneration circuits
  • Automatic hydraulic warm-up
  • Automatic two speed travel
  • High performance hydraulic return filter

SAFETY AND SECURITY

  • Rearview mirrors; handrail mounted (one), cab handhold mounted (one)
  • Bolt free service platform with anti-skid plate
  • Neutral lever (lock out) for all controls
  • Ground level accessible secondary engine shutoff switch in cab
  • Handrail and handhold
  • Signaling/warning horn

SERVICE AND MAINTENANCE

  • Grouped engine oil, fuel, and hydraulic oil filters
  • Scheduled Oil Sampling (S·O·S℠) ports
  • Radiator screen for radiator/oil cooler

UNDERCARRIAGE AND STRUCTURES

  • Grease lubricated track links
  • Segmented track guiding guard
  • Center track guiding guard
  • Bottom guard
  • 4000 kg (8,820 lb) counterweight
  • 600 mm (24 in) triple grouser shoes (10 mm/0.39 in thick)

322 Optional Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

CAB

  • Rollover Protective Structure (ROPS)
  • Operator Protective Guards (OPG) with matching lights
  • Front windshield guard (wire mesh)

ELECTRICAL

  • LED right-side boom light

SAFETY AND SECURITY

  • Rearview camera
  • Travel alarm

UNDERCARRIAGE AND STRUCTURES

  • 4.25 m (13'11") Medium undercarriage
  • 4.45 m (14'7") Long undercarriage
  • Segmented track guiding guard
  • Center track guiding guard

See how 322 compares against frequently compared products.

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322 Hydraulic Excavator

322 Hydraulic Excavator

322 Hydraulic Excavator

322 Hydraulic Excavator

322 Hydraulic Excavator

322 Hydraulic Excavator

322 Hydraulic Excavator

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322  Hydraulic Excavator
322  Hydraulic Excavator
322  Hydraulic Excavator

Introducing Next Generation Cat® Excavator 322

Introducing Next Generation Cat® Excavator 322

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