322 Medium Excavators

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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

322
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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.

Features At A Glance

Displaying 1-6 of 8

Designed For Uptime

Caterpillar design and manufacturing techniques assure outstanding service life.
Thorough component design and machine validation processes result in unmatched reliability and uptime.
Reinforced front structures help extend machine life in demanding terrain.
Robotically welded booms and sticks ensure structural integrity.
Dig and lift from a stable platform created by the 4000 kg (8,820 lb) heavy-duty counterweight and eight-roller undercarriage.
Hydraulic lines protected inside the frame reduce damage risk.
Auto warm up speeds up hydraulic oil warming in cold temperatures and helps prolong the life of components.
The latest single-plane cooling package has better air flow, helping to reduce fan speed and save fuel in cooler conditions and lighter applications.
Sloped track frame helps prevent mud and debris from accumulating in the track area.
Grease lubricated links minimize internal bushing wear, reducing noise and increasing life.
Optimized Heavy-Duty Reach 2.5 (8'2") stick for longer life in quarry application.
The center track guiding guard helps keep the excavator track aligned when traveling and working on slopes.
Robust bottom guards protect machine components that might be damaged while swinging. A thicker bottom guard plate is used under the pump compartment to protect the suction hose.
Cooling system capability of up to 48º C (118º F) for good performance in harsh environments.
The excavator has a high-ambient temperature capability of 52º C (126º F) and cold start capability of –10° C (14° F).

Low Fuel Consumption

The Turbocharged Cat C3.6 engine and electrohydraulic system work in sync to help you move loads of material without burning excessive fuel.
Eco mode reduces fuel consumption with no loss in lifting or digging forces.
Equipped with electrohydraulic control valve, pump and Engine Control Module (ECM) for better controllability and high fuel efficiency.
The ECM ensures smooth, precise operation in every pass.
Balance power and fuel efficiency using the Positive Flow Control (PVC) electrohydraulic system.
Use automatic engine speed control (AEC) during no-load or light-load conditions to automatically reduce engine speed to minimize fuel consumption.
Electronic tandem hydraulic pumps deliver more efficiency with less internal friction losses and superior design.
Boom and stick regeneration circuits reduce fuel consumption while improving cycle times.

High Productivity

Choose from a 1.2 m³ (1.57 yd³) General Duty bucket or a 1.14 m³ (1.49 yd³) General Duty bucket for earthmoving tasks. For quarry applications, select the 1.1 m³ (1.44 yd³) Severe Duty bucket, engineered to handle rock, gravel, and abrasive materials with ease.
Choose between two robust undercarriage options: Medium 4.25 m (13'11") or Long 4.45 m (14'7"), both built to withstand demanding conditions.
Increased swing torque compared to the 320D3 delivers seamless operations while grading, truck loading and trenching.
Faster swing acceleration is achievable due to the higher swing torque, providing optimal site performance.
The single plane cooling package design reduces air resistance compared to the traditional two-plane design for better cooling performance and enhanced machine productivity.
Traverse the job site on the Grease Lubricated Track (GLT) undercarriage. Undercarriage rollers are rebuildable and sealed to prevent dirt and debris from causing internal wear.
Work up to 3000 m (9,840 ft) above sea level without de-rating.
Reinforced structures and upgraded undercarriages improve stability and durability.
The single plate X-shaped, box-section car body provides excellent resistance to torsional bending, dissipating stress throughout the base of the machine.
The standard and heavy-duty base frames provide longer life and greater resilience in demanding work environments.
Match your machine to the job with power modes. Let Smart mode automatically match engine and hydraulic power to working conditions. Power mode constantly provides maximum productivity, and Eco mode helps to minimizes fuel consumption in less-demanding applications.
The boom and stick structures are designed using high-tensile steel fabricated into a large box section using internal baffles to absorb torsional stress.

Save On Service And Maintenance

The 322 has a work platform for all routine service and maintenance needs. Anti-skid plating with countersunk bolts reduces the potential for slippage and trip hazards. Grips on the track frame, service platform, cab and battery compartment for an easy climb up and down from the service platform and operator station.
Shared components simplify maintenance and improve parts availability.
Scheduled Oil Sampling (S·O·S^SM) ports are on ground level, simplifying maintenance and allowing for quick, easy extraction of samples for fluid analysis.
Extended and synchronized service intervals save on maintenance costs.
Extended first engine oil change interval (500 hours), and maintenance-free batteries.
Filters, such as fuel, engine air, and oil filters, are grouped together for easy access and preventative maintenance.
There is no need to manually prime the fuel system after fuel filter changes. The standard electric priming pump reduces the risk of contamination by preventing unfiltered fuel from entering the fuel system.
Maximize uptime and extended service intervals, thanks to advanced hydraulic oil filter design and no pilot and case drain filters.
A two-stage fuel filter and anti-rust fuel tank help protect the engine against low-quality fuel.
Routine cleaning is made easier with the single plane cooling package design.
Proven, high-efficiency radial seal engine air filter behind the cab. The machine constantly monitors the engine air filter and will notify you, via the monitor, when service is required.
The latest air intake filter with pre-cleaner has double the dust holding capacity of the previous air intake filter.

Safely Home Every Day

The latest cab provides excellent visibility from the operator’s seat. In addition, two standard mirrors help keep you aware of your surroundings.
Optional front windshield guard helps protect the windshield from potential damage caused by flying debris, and other road materials.
Optional rearview camera enhances visibility behind the machine.
Heavy-duty base frame and reinforced “X” car body conform to ISO 15818:2017 lifting and tie-down requirements.
The optional Rollover Protective Structure (ROPS) cab conforms to ISO 12117-2:2008 requirements.
Handrails and hand hold with a step on the undercarriage for easy access to the engine bay area. The handrails conform to ISO 2867:2011 requirements for added safety.
Anti-skid plating with countersunk bolts reduces the potential for slippage and trip hazards.
Ground-level access for daily checks improves safety and saves time.
Serrated steps, anti-skid plating, and handrails help you avoid slips and trips – a major contributor to workplace injuries.
A lockable disconnect switch isolates the battery and enhances safety by disconnecting the electrical energy when servicing the machine.
The optional travel alarm provides a clear warning signal, alerting nearby individuals to the machine's movement and promoting a safe working environment.
Bright seatbelts and a wide cab entry improve safety and usability.
LED 1200 lumen lights, a quiet muffler, and emergency cab exits support 24/7 operation.

Simple To Operate

Start the engine with a push button.
The in-cab high-resolution 203 mm (8 in) touchscreen monitor is easy to use, intuitive, and user-friendly.
Continuously improved user interface allows for intuitive navigation, minimizing performance interruption with the easy-to-use touchscreen menu.
The machine’s electrohydraulic system allows accurate bucket control for maximum precision.
Optimized low-effort joystick controls reduce operator fatigue.
Customize joystick patterns and preferences; the machine remembers them.
Auto hammer stop protects tools from overheating and wear.

All Day Comfort

Ergonomically designed seat to improve operator’s comfort.
Sound suppression, seals, and viscous cab mounts decrease noise and vibration for a quieter work environment.
Standard automatic climate control helps keep you comfortable all shift long.
Excellent work site visibility from the cab enhances productivity and safety.
Adjustable seat with three suspension levels and ergonomic design.
Climate control, Bluetooth® connectivity, USB ports, and an intuitive interface enhance comfort.
Control the excavator comfortably with easy-to-reach controls all located in front of you.
Easy to access radio controls, engine throttle, wiper controls and Bluetooth phone pairing for operator convenience.
Automatic climate control helps maintain consistent cab temperature. Five outlets ensure proper air circulation to keep you comfortable regardless of outside temperatures.
There is plenty of room for you to store your gear. The cup holder and storage space in front of the controls can hold large cups and wide cell phones; storage behind the seat can hold a large lunchbox and other items.
Bright seatbelts and a wide cab entry improve safety and usability.

Caterpillar design and manufacturing techniques assure outstanding service life.
Thorough component design and machine validation processes result in unmatched reliability and uptime.
Reinforced front structures help extend machine life in demanding terrain.
Robotically welded booms and sticks ensure structural integrity.
Dig and lift from a stable platform created by the 4000 kg (8,820 lb) heavy-duty counterweight and eight-roller undercarriage.
Hydraulic lines protected inside the frame reduce damage risk.
Auto warm up speeds up hydraulic oil warming in cold temperatures and helps prolong the life of components.
The latest single-plane cooling package has better air flow, helping to reduce fan speed and save fuel in cooler conditions and lighter applications.
Sloped track frame helps prevent mud and debris from accumulating in the track area.
Grease lubricated links minimize internal bushing wear, reducing noise and increasing life.
Optimized Heavy-Duty Reach 2.5 (8'2") stick for longer life in quarry application.
The center track guiding guard helps keep the excavator track aligned when traveling and working on slopes.
Robust bottom guards protect machine components that might be damaged while swinging. A thicker bottom guard plate is used under the pump compartment to protect the suction hose.
Cooling system capability of up to 48º C (118º F) for good performance in harsh environments.
The excavator has a high-ambient temperature capability of 52º C (126º F) and cold start capability of –10° C (14° F).

The Turbocharged Cat C3.6 engine and electrohydraulic system work in sync to help you move loads of material without burning excessive fuel.
Eco mode reduces fuel consumption with no loss in lifting or digging forces.
Equipped with electrohydraulic control valve, pump and Engine Control Module (ECM) for better controllability and high fuel efficiency.
The ECM ensures smooth, precise operation in every pass.
Balance power and fuel efficiency using the Positive Flow Control (PVC) electrohydraulic system.
Use automatic engine speed control (AEC) during no-load or light-load conditions to automatically reduce engine speed to minimize fuel consumption.
Electronic tandem hydraulic pumps deliver more efficiency with less internal friction losses and superior design.
Boom and stick regeneration circuits reduce fuel consumption while improving cycle times.

Choose from a 1.2 m³ (1.57 yd³) General Duty bucket or a 1.14 m³ (1.49 yd³) General Duty bucket for earthmoving tasks. For quarry applications, select the 1.1 m³ (1.44 yd³) Severe Duty bucket, engineered to handle rock, gravel, and abrasive materials with ease.
Choose between two robust undercarriage options: Medium 4.25 m (13'11") or Long 4.45 m (14'7"), both built to withstand demanding conditions.
Increased swing torque compared to the 320D3 delivers seamless operations while grading, truck loading and trenching.
Faster swing acceleration is achievable due to the higher swing torque, providing optimal site performance.
The single plane cooling package design reduces air resistance compared to the traditional two-plane design for better cooling performance and enhanced machine productivity.
Traverse the job site on the Grease Lubricated Track (GLT) undercarriage. Undercarriage rollers are rebuildable and sealed to prevent dirt and debris from causing internal wear.
Work up to 3000 m (9,840 ft) above sea level without de-rating.
Reinforced structures and upgraded undercarriages improve stability and durability.
The single plate X-shaped, box-section car body provides excellent resistance to torsional bending, dissipating stress throughout the base of the machine.
The standard and heavy-duty base frames provide longer life and greater resilience in demanding work environments.
Match your machine to the job with power modes. Let Smart mode automatically match engine and hydraulic power to working conditions. Power mode constantly provides maximum productivity, and Eco mode helps to minimizes fuel consumption in less-demanding applications.
The boom and stick structures are designed using high-tensile steel fabricated into a large box section using internal baffles to absorb torsional stress.

The 322 has a work platform for all routine service and maintenance needs. Anti-skid plating with countersunk bolts reduces the potential for slippage and trip hazards. Grips on the track frame, service platform, cab and battery compartment for an easy climb up and down from the service platform and operator station.
Shared components simplify maintenance and improve parts availability.
Scheduled Oil Sampling (S·O·S^SM) ports are on ground level, simplifying maintenance and allowing for quick, easy extraction of samples for fluid analysis.
Extended and synchronized service intervals save on maintenance costs.
Extended first engine oil change interval (500 hours), and maintenance-free batteries.
Filters, such as fuel, engine air, and oil filters, are grouped together for easy access and preventative maintenance.
There is no need to manually prime the fuel system after fuel filter changes. The standard electric priming pump reduces the risk of contamination by preventing unfiltered fuel from entering the fuel system.
Maximize uptime and extended service intervals, thanks to advanced hydraulic oil filter design and no pilot and case drain filters.
A two-stage fuel filter and anti-rust fuel tank help protect the engine against low-quality fuel.
Routine cleaning is made easier with the single plane cooling package design.
Proven, high-efficiency radial seal engine air filter behind the cab. The machine constantly monitors the engine air filter and will notify you, via the monitor, when service is required.
The latest air intake filter with pre-cleaner has double the dust holding capacity of the previous air intake filter.

The latest cab provides excellent visibility from the operator’s seat. In addition, two standard mirrors help keep you aware of your surroundings.
Optional front windshield guard helps protect the windshield from potential damage caused by flying debris, and other road materials.
Optional rearview camera enhances visibility behind the machine.
Heavy-duty base frame and reinforced “X” car body conform to ISO 15818:2017 lifting and tie-down requirements.
The optional Rollover Protective Structure (ROPS) cab conforms to ISO 12117-2:2008 requirements.
Handrails and hand hold with a step on the undercarriage for easy access to the engine bay area. The handrails conform to ISO 2867:2011 requirements for added safety.
Anti-skid plating with countersunk bolts reduces the potential for slippage and trip hazards.
Ground-level access for daily checks improves safety and saves time.
Serrated steps, anti-skid plating, and handrails help you avoid slips and trips – a major contributor to workplace injuries.
A lockable disconnect switch isolates the battery and enhances safety by disconnecting the electrical energy when servicing the machine.
The optional travel alarm provides a clear warning signal, alerting nearby individuals to the machine's movement and promoting a safe working environment.
Bright seatbelts and a wide cab entry improve safety and usability.
LED 1200 lumen lights, a quiet muffler, and emergency cab exits support 24/7 operation.

Start the engine with a push button.
The in-cab high-resolution 203 mm (8 in) touchscreen monitor is easy to use, intuitive, and user-friendly.
Continuously improved user interface allows for intuitive navigation, minimizing performance interruption with the easy-to-use touchscreen menu.
The machine’s electrohydraulic system allows accurate bucket control for maximum precision.
Optimized low-effort joystick controls reduce operator fatigue.
Customize joystick patterns and preferences; the machine remembers them.
Auto hammer stop protects tools from overheating and wear.

Ergonomically designed seat to improve operator’s comfort.
Sound suppression, seals, and viscous cab mounts decrease noise and vibration for a quieter work environment.
Standard automatic climate control helps keep you comfortable all shift long.
Excellent work site visibility from the cab enhances productivity and safety.
Adjustable seat with three suspension levels and ergonomic design.
Climate control, Bluetooth® connectivity, USB ports, and an intuitive interface enhance comfort.
Control the excavator comfortably with easy-to-reach controls all located in front of you.
Easy to access radio controls, engine throttle, wiper controls and Bluetooth phone pairing for operator convenience.
Automatic climate control helps maintain consistent cab temperature. Five outlets ensure proper air circulation to keep you comfortable regardless of outside temperatures.
There is plenty of room for you to store your gear. The cup holder and storage space in front of the controls can hold large cups and wide cell phones; storage behind the seat can hold a large lunchbox and other items.
Bright seatbelts and a wide cab entry improve safety and usability.

VisionLink™ wirelessly connects you to your equipment, giving you access to essential information you need to know to run your business. Gain valuable insight into how your machine or fleet is performing. Access data anywhere—desktop, tablet, or mobile device.
Available CVA (Customer Value Agreements) and EPP (Extended Protection Plans) help maximize uptime and reduce risk.
Cat dealers are second to none. From machine selection and purchase to maintenance support, operator training and rebuilds, Cat dealers have the experience and capabilities to help keep you up and running at peak performance.

Specifications Standard Equipment Optional Equipment

Product Specifications for 322

Engine

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.

Weights

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.

Working Ranges and Forces

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

Hydraulic System

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 Mechanism

Swing Speed	11.5 r/min 11.5 r/min
Maximum Swing Torque	50560 lbf·ft 69 kN·m

Service Refill Capacities

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

Dimensions

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

Product Specifications for 322

Download Print

Engine

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.

Weights

Operating Weight

45,700 lb 20700 kg

Note

Working Ranges and Forces

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

Hydraulic System

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 Mechanism

Swing Speed	11.5 r/min 11.5 r/min
Maximum Swing Torque	50560 lbf·ft 69 kN·m

Service Refill Capacities

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

Dimensions

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.

Excavators

Selected

322

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

Excavators

321

Net Power - ISO 9249: 129 hp; 96 kW
Operating Weight: 42,600 lb; 19300 kg
Maximum Digging Depth: 19.6 ft; 5970 mm

View Details

Excavators

323 Tier 3

Net Power - ISO 9249: 157 hp; 117 kW
Operating Weight: 50500 lb; 22900 kg
Maximum Digging Depth: 22.1 ft; 6730 mm

View Details

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322 Hydraulic Excavator

Introducing Next Generation Cat® Excavator 322

322 Medium Excavators

Overview

Profit-Driven Powerhouse for Heavy Loads

Benefits

Built to Move More

Rugged | Reliable | Durable

Designed for Uptime

Features At A Glance

Designed For Uptime

Low Fuel Consumption

High Productivity

Save On Service And Maintenance

Safely Home Every Day

Simple To Operate

All Day Comfort

Smart Fleet Management

Product Specifications for 322

Engine

Weights

Working Ranges and Forces

Hydraulic System

Swing Mechanism

Service Refill Capacities

Dimensions

322 Standard Equipment

NOTE

BOOM, STICK AND LINKAGE

CAB

CAT TECHNOLOGY

ELECTRICAL SYSTEM

ENGINE

HYDRAULIC SYSTEM

SAFETY AND SECURITY

SERVICE AND MAINTENANCE

UNDERCARRIAGE AND STRUCTURES

322 Optional Equipment

NOTE

CAB

ELECTRICAL

SAFETY AND SECURITY

UNDERCARRIAGE AND STRUCTURES

Product Specifications for 322

Engine

Weights

Working Ranges and Forces

Hydraulic System

Swing Mechanism

Service Refill Capacities

Dimensions

322 Standard Equipment

NOTE

BOOM, STICK AND LINKAGE

CAB

CAT TECHNOLOGY

ELECTRICAL SYSTEM

ENGINE

HYDRAULIC SYSTEM

SAFETY AND SECURITY

SERVICE AND MAINTENANCE

UNDERCARRIAGE AND STRUCTURES

322 Optional Equipment

NOTE

CAB

ELECTRICAL

SAFETY AND SECURITY

UNDERCARRIAGE AND STRUCTURES

See how 322 compares against frequently compared products.

Tools And Expert Help At Every Turn

Find Dealer

Payment Calculator

Current Offers

Rental Options

Used Options

assignment Product Brochures and More Are Ready to Download!

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360 View

Check out current offers for the 322

Product Brochures and More Are Ready to Download!