323 - Tier 4 / Stage V

Net Power - ISO 9249: 172 hp / 128.5 kW
Operating Weight: 55100 lb / 25000 kg
Maximum Digging Depth: 22.1 ft / 6730 mm

The Cat® 323 delivers power, speed, and high production performance. With more standard technology than previous models, plus reduced fuel and maintenance costs, the Cat 323 has all you need to take your business to the next level.

Loan Calculator Credit Application

Build & Quote

323 Excavator - Product Brochure (Aus-NZ, Chile, Europe, N Am, Turkey) 323 Excavator - Technical Specifications (Aus-NZ) 323 Excavator - Technical Specifications (N Am) 323 Excavator - Technical Specifications (Europe) 323 Excavator - Technical Specifications (Chile, Turkey) Super Long Reach and Long Reach Excavation - Product Brochure (Europe, N Am)

Specifications
Equipment
Related Products

Engine
Net Power - ISO 9249	172 hp / 128.5 kW
Net Power - ISO 9249 (DIN)	175 hp (metric)
Engine Model	Cat C7.1
Engine Power - ISO 14396:2002	174 hp / 129.4 kW
Engine Power - ISO 14396 (DIN)	176 hp (metric)
Bore	4 in / 105 mm
Stroke	5 in / 135 mm
Displacement	428 in³ / 7.01 l
Biodiesel Capability	Up to B20¹
Emissions	Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
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 engine speed at 2,200 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.
Note (2)	¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% 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. Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (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.

Hydraulic System
Main System - Maximum Flow	429 l/min (113 gal/min)
Maximum Pressure - Equipment	5075 psi / 35000 kPa
Maximum Pressure - Travel	4974 psi / 34300 kPa
Maximum Pressure - Swing	3988 psi / 27500 kPa

Swing Mechanism
Swing Speed	11.25 r/min
Maximum Swing Torque	60300 ft·lbf / 82 kN·m

Weights
Operating Weight	55100 lb / 25000 kg
Note	Long undercarriage, Reach boom, R2.9 (9'6"), Reach stick, Heavy Duty (HD) 1.38 m³ (1.81 yd³) bucket, 790 mm (31") HD triple grouser track shoes and 5,400 kg (11,900 lb) counterweight.

Service Refill Capacities
Fuel Tank Capacity	86.6 gal (US) / 345 l
Cooling System	6.6 gal (US) / 25 l
Engine Oil	6.6 gal (US) / 25 l
Swing Drive - Each	1.6 gal (US) / 6 l
Final Drive - Each	1.3 gal (US) / 5 l
Hydraulic System - Including Tank	61.8 gal (US) / 234 l
Hydraulic Tank	30.4 gal (US) / 115 l
DEF Tank	10.8 gal (US) / 41 l

Dimensions
Boom	Reach 5.7 m (18'8")
Stick	Reach 2.9 m (9'6")
Bucket	HD 1.30 m³ (1.71 yd³)
Shipping Height - Top of Cab	9.7 ft / 2960 mm
Handrail Height	9.7 ft / 2950 mm
Shipping Length	31.3 ft / 9530 mm
Tail Swing Radius	9.3 ft / 2830 mm
Counterweight Clearance	3.4 ft / 1050 mm
Ground Clearance	1.5 ft / 470 mm
Track Length	14.6 ft / 4450 mm
Length to Center of Rollers	12 ft / 3650 mm
Track Gauge	7.8 ft / 2380 mm
Transport Width	10.4 ft / 3170 mm

Working Ranges & Forces
Maximum Digging Depth	22.1 ft / 6730 mm
Boom	Reach 5.7 m (18'8")
Stick	Reach 2.9 m (9'6")
Bucket	HD 1.30 m³ (1.71 yd³)
Maximum Reach at Ground Level	32.4 ft / 9870 mm
Maximum Cutting Height	31 ft / 9450 mm
Maximum Loading Height	21.3 ft / 6480 mm
Minimum Loading Height	7.1 ft / 2160 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom	21.5 ft / 6560 mm
Maximum Vertical Wall Digging Depth	18.8 ft / 5740 mm
Bucket Digging Force - ISO	34308 lbf / 140 kN
Stick Digging Force - ISO	26094 lbf / 107 kN

Air Conditioning System
Air Conditioning	The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 0.85 kg (1.9 lb) of refrigerant which has a CO2 equivalent of 1.216 metric tonnes (1.340 tons).

Sustainability
Recyclability	98%

Standard Equipment

NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
CAB
- Rollover protective structure (ROPS)
- Air-adjustable seat with heat (Deluxe only)
- Auto-adjustable seat with heat and air ventilation (Premium only)
- High-resolution 254 mm (10 in) LCD touchscreen monitor
CAT TECHNOLOGY
- VisionLink®
- Remote Flash
- Remote Troubleshoot
- Cat Grade 2D
- Cat Assist
- Cat Payload
ELECTRICAL SYSTEM
- Two 1,000 CCA maintenance-free batteries
- Programmable time-delay LED working lights
- LED chassis light, left-hand/right-hand boom lights, cab lights
ENGINE
- Cat 7.1 single turbo diesel engine
- Three selectable power modes
- Automatic engine speed control
- 46°C (115°F) high-ambient cooling capacity (Europe only)
- 52°C (125°F) high-ambient cooling capacity
- -18°C (0°F) cold start capability
- Double element air filter with integrated precleaner
- Reversing electric cooling fans
HYDRAULIC SYSTEM
- Boom and stick regeneration circuits
- Auto hydraulic warm up
- Auto two-speed travel
- Boom and stick drift reduction valve
- Auto dig boost
- Auto heavy lift
SAFETY AND SECURITY
- 2D E-Fence
- Auto hammer stop
- Rearview camera
- Right-side-view camera
- Lockable disconnect switch
- Ground-level engine shutoff switch
- Right-hand handrail and handhold
- Signaling/warning horn
SERVICE AND MAINTENANCE
- Sampling ports for Scheduled Oil Sampling (S·O·S?)
- Ground-level and platform-level engine oil dipsticks
- Integrated vehicle health management system
UNDERCARRIAGE AND STRUCTURES
- Tie-down points on base frame

Optional Equipment

NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
BOOMS AND STICKS
- 5.7 m (18'8") Reach boom
- 5.7 m (18'8") HD Reach boom
- 2.7 m (8'10") stub + 3.3 m (10'10") fore, Variable Angle boom
- 8.85 m (29'0") Super Long Reach boom
- 2.5 m (8'2") Reach stick
- 2.9 m (9'6") Reach stick
- 2.5 m (8'2") HD Reach stick (Chile, Turkey only)
- 2.9 m (9'6") HD Reach stick (Chile, Turkey only)
- 3.9 m (12'10") Reach stick
- 2.9 m (9'6") HD Thumb Ready Reach stick
- 6.28 m (20'7") Super Long Reach stick
CAB
- Cat Stick Steer
CAT TECHNOLOGY
- VisionLink Productivity
- Cat Grade Connectivity
- Cat Grade 2D with Attachment Ready Option (ARO)
- Cat Grade 3D single GNSS
- Cat Grade 3D dual GNSS
- Cat Tilt Rotator (TRS) Integration
- Operator Coaching
ENGINE
- -32°C (-25°F) cold start capability
HYDRAULIC SYSTEM
- Boom and stick lowering check valves
- SmartBoom™ (Europe only)
- Hammer return filter circuit
- Advanced tool control (two pump, one/two way high-pressure flow)
- Hydraulic efficiency monitoring
- Medium-pressure circuit
- Quick coupler circuit for Cat Pin Grabber
SAFETY AND SECURITY
- Cat Command (remote control)
- 360° visibility
- Inspection lighting
UNDERCARRIAGE AND STRUCTURES
- 600 mm (24") single grouser shoes
- 600 mm (24") HD double grouser shoes
- 600 mm (24") HD triple grouser shoes
- 700 mm (28") HD triple grouser shoes
- 790 mm (31") HD triple grouser shoes
- 900 mm (35") HD triple grouser shoes
- 4200 kg (9,300 lb) counterweight

Grade

<p>Cat® Grade technologies combine digital design data, in-cab guidance, and automatic controls to enhance grading accuracy, reduce rework, and lower costs related to production earthmoving and rough, fine and finish grade applications.</p><p>Whether you're working on simple planes and slopes or complex contour designs, Grade technologies enable you to boost grading efficiency by as much as 50%, helping you get more work done – in less time and at a lower cost – than ever before.</p>

Model
Cat Grade with 2D for Excavators
Cat Grade with 3D for Excavators

Detect

On the surface, operators in the cabs of large mining equipment often cannot see if another machine or vehicle is too close for safe operation. Detect helps alleviate this potential safety hazard and can also be configured to provide valuable information about site conditions and other assets working in the area. Underground, continuous equipment movement on a longwall face can pose risks to those in the working area.

Model
Cat 2D E-fence for Excavators

Command

Combining the Fleet, Terrain, Detect and Health capabilities of Cat® MineStar™ System, Command enables you to implement remote control, semi-autonomous or fully autonomous mining equipment systems - offering unprecedented improvements in operator safety, equipment availability and site productivity.

Model
Cat Command Remote Control for Construction

Equipment Management

Cat® Equipment Management gives you access to the data you need to keep your equipment on the job site and earning money. You can track equipment location and hours, monitor machine use and health, then take informed action that will keep your operation running smoothly, efficiently and profitably.

Model
VisionLink®
Cat Inspect
Cat Remote Troubleshooting
Cat Product Link

Payload

Cat® Payload technologies provide on-the-go load weighing to assist operators with hitting precise load targets every time, helping to reduce load times, optimize loading efficiency and increase jobsite productivity. Operators can track daily productivity from the cab, with quick access to information such as truck target weights, loads and cycle counts, material movement and daily totals. When combined with Cat Link technologies, detailed data can be accessed remotely to manage overall operations and keep production targets on track.

Model
Cat Payload for Excavators

GC Hammers

Cat® hammers make short work of your demolition, construction, and quarry needs. Combine the simple, lightweight design of the GC Hammer series with the reliability, durability, and value you expect from Cat products. The result is a low cost per hour solution providing the consistent power and performance you need.

Model	Blows per Minute	Minimum Operating Weight	Rated Flow - Minimum
H120 GC S	400 to 800	3849 lb / 1746 kg	33 gal/min / 125 l/min
H130 GC S	350 to 700	5503 lb / 2496 kg	42 gal/min / 160 l/min

Performance Hammers

Cat® hydraulic hammers make short work of your demolition, construction, quarry and production breaking needs. Cat Hammers are high performance breakers, designed to help you get the most from your Cat excavators.

Model	Blows per Minute	Minimum Operating Weight	Rated Flow - Minimum
H115 S	370 to 800	2354 lb / 1070 kg	19 gal/min / 70 l/min
H120 S	350 to 620	3256 lb / 1480 kg	26 gal/min / 100 l/min
H130 S	320 to 600	3850 lb / 1750 kg	32 gal/min / 120 l/min

Secondary Pulverizer

Non-rotating hydraulic pulverizer reduces concrete and separates rebar.

Model	Cycle Time - Open	Cycle Time - Close	Crushing Force - Primary Cutter
P224 Secondary Pulverizer	1.9 s	1.3 s	409 Sh Ton / 3640 kN

Primary Pulverizers

Productive demolition and maximum up time with one point of support for your entire system.

Model	Cycle Time - Open	Cycle Time - Close	Crushing Force - Primary Cutter
P318 Primary Pulverizer	1.6 s	1 s	308 Sh Ton / 2740 kN
P324 Primary Pulverizer	1.8 s	1.2 s	446 Sh Ton / 3965 kN

Multi-Processor with Demolition Jaws

Used to reduce any strength concrete, with and without rebar.

Model	Cycle Time - Open	Excavator Minimum	Cycle Time - Close
MP318 Demolition Jaw	1.6 s	18 tons	1 s
MP324 Demolition Jaw	1.8 s	24 tons	1.2 s

Multi-Processor with Universal Jaws

Used for precision demolition, sectioning concrete and down-sizing concrete for crushers.

Model	Cycle Time - Open	Excavator Minimum	Cycle Time - Close
MP318 Universal Jaw	1.6 s	18 tons	1 s
MP324 Universal Jaw	1.6 s	24 tons	1 s

Multi-Processor with Pulverizer Jaws

Used to completely separate rebar from concrete and reduce concrete to the smallest size; also has great picking capability.

Model	Cycle Time - Open	Excavator Minimum	Cycle Time - Close
MP318 Pulverizer Jaw	1.6 s	18 tons	1 s
MP324 Pulverizer Jaw	1.8 s	24 tons	1.2 s

Assist

Cat® Assist technologies are advanced onboard systems designed to enhance operators' confidence, speed, and accuracy, regardless of their experience level. By integrating automation and user-friendly interfaces, Cat Assist helps reduce operator fatigue and the risk of errors, allowing operators to efficiently perform tasks such as loading, digging, and grading.

Model
Cat Lift Assist for Excavators
Cat Grade Assist for Excavators

Productivity

VisionLink® Productivity is a cloud-based application that is scalable to any size operation. Detailed Cat Production Measurement data, machine data and jobsite data are transmitted from the onboard Cat Product Link™ device directly to the web platform, for you to access wherever you are, via your mobile, tablet or desktop device.

Model
VisionLink® Productivity
Operator Coaching for Excavators

Technology Kits

Caterpillar provides solutions to help customers in any industry improve efficiency and enhance safety.

Model
Cat® Grade Connectivity for Grade with 3D

Vibratory Plate Compactors

Vibratory action and dynamic force provides excellent compaction in a compact size.

Model	Impulse Force	Cycles/Minimum	Base Plate Width
CVP75	16508 lb / 74 kN	2200	29 in / 737 mm
CVP110	24669 lb / 110 kN	2200	34 in / 864 mm

Multi-Processor with Concrete Cutter Jaws

For demolition and cutting of concrete structures.

Model	Cycle Time - Open	Excavator Minimum	Cycle Time - Close
MP324 Concrete Cutter Jaw	1.8 s	24 tons	1.2 s

Multi-Processor with Shear Jaws

Used to reduce angle iron, channel iron, beams, pipe, rebar, cable and tires.

Model	Cycle Time - Open	Excavator Minimum	Cycle Time - Close
MP318 Shear Jaw	1.6 s	18 tons	1 s
MP324 Shear Jaw	1.8 s	24 tons	1.2 s

Multi-Processor with Tank Shear Jaws

Used to cut storage tanks and plate steel producing straight, smooth cuts.

Model	Cycle Time - Open	Excavator Minimum	Cycle Time - Close
MP324 Tank Shear	1.8 s	24 tons	1.2 s