323 Hydraulic Excavator
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.
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Engine
- Net Power - ISO 9249
- 172HP
- Engine Model
- Cat C7.1e TA
- Engine Power - ISO 14396
- 174HP
- Bore
- 4in
- Stroke
- 5in
- Displacement
- 428in³
Weights
- Operating Weight
- 54900lb
Working Ranges & Forces
- Maximum Digging Depth
- 22.1ft
- 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
- 32.4ft
- Maximum Cutting Height
- 31ft
- Maximum Loading Height
- 21.3ft
- Minimum Loading Height
- 7.1ft
- Maximum Depth Cut for 2440 mm (8 ft) Level Bottom
- 21.6ft
- Maximum Vertical Wall Digging Depth
- 18.8ft
- Bucket Digging Force - ISO
- 34308lbf
- Stick Digging Force - ISO
- 26094lbf
Hydraulic System
- Main System - Maximum Flow
- 429 l/min (113 gal/min)
- Maximum Pressure - Equipment
- 5075psi
- Maximum Pressure - Travel
- 4974psi
- Maximum Pressure - Swing
- 3988psi
Swing Mechanism
- Swing Speed
- 11.25r/min
- Maximum Swing Torque
- 60300ft·lbf
Service Refill Capacities
- Fuel Tank Capacity
- 86.6gal (US)
- Cooling System
- 6.6gal (US)
- Engine Oil
- 6.6gal (US)
- Swing Drive - Each
- 3.2gal (US)
- Final Drive - Each
- 1.3gal (US)
- Hydraulic System - Including Tank
- 61.8gal (US)
- Hydraulic Tank
- 30.4gal (US)
- DEF Tank
- 10.8gal (US)
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
- 9.9ft
- Handrail Height
- 9.9ft
- Shipping Length
- 31.3ft
- Tail Swing Radius
- 9.3ft
- Counterweight Clearance
- 3.5ft
- Ground Clearance
- 1.7ft
- Track Length
- 14.7ft
- Length to Center of Rollers
- 12ft
- Track Gauge
- 7.9ft
- Transport Width
- 9.9ft
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
-
- Cat Product Link™
- Remote Flash
- Remote Troubleshoot
- Cat Grade with 2D
- Cat Grade with Assist
- Cat Payload
- E-Fence
- Lift assist
-
- 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
- Biodiesel capability up to B20
-
- 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
-
- Rear and right-hand-sideview cameras
- 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
-
- 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 (Turkey only)
- 2.9 m (9'6") HD Reach stick (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
- Auxiliary relay
-
- Cat Technology
-
- Cat Grade with Advanced 2D
- Cat Grade with single GNSS
- Cat Grade with 3D dual GNSS
-
- Engine
-
- -32°C (-25°F) cold start capability
-
- Hydraulic System
-
- Boom and stick lowering check valves
- Hammer return filter circuit
- Advanced tool control (two pump, one/two way high-pressure flow)
- Medium-pressure circuit
- Quick coupler circuit for Cat Pin Grabber
-
- Safety And Security
-
- Cat Detect People Detection
- 360° visibility
- Swing alarm
- Cat Command remote control
- Inspection lighting
-
- Service And Maintenance
-
- Integrated vehicle health management system
-
- Undercarriage And Structures
-
- 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
- 4.2 mt (9,300 lb) counterweight
- 5.4 mt (11,900 lb) counterweight
Cat® Grade Connectivity
H120 S Hydraulic Hammer
- Impact Energy Class
- 3500 ft·lbf
- Blows per Minute
- 350-620
- Maximum Operating Weight
- 4101 lb
H130 GC S Hammer
- Impact Energy Class
- 4425 ft-lb
- Blows per Minute
- 350-700
- Maximum Operating Weight
- 5471.4 lb
H120 GC S Hammer
- Impact Energy Class
- 2950 ft-lb
- Blows per Minute
- 400-800
- Maximum Operating Weight
- 3927 lb
GSH525-950
- Capacity
- 1.25 yd³
- Maximum Lift Capacity
- 22046 lb
- Shell Type Options
- Semi-open, Closed
GSH525-750
- Capacity
- 1 yd³
- Maximum Lift Capacity
- 22046 lb
- Shell Type Options
- Semi-open, Closed
GSH425-950-S
- Capacity
- 1.25 yd³
- Maximum Lift Capacity
- 22046 lb
- Shell Type Options
- Semi-open
GSH520-750
- Capacity
- 1 yd³
- Maximum Lift Capacity
- 17637 lb
- Shell Type Options
- Semi-open, Closed
GSH425-750-S
- Capacity
- 1 yd³
- Maximum Lift Capacity
- 22046 lb
- Shell Type Options
- Semi-open
GSH520-600
- Capacity
- 0.75 yd³
- Maximum Lift Capacity
- 17637 lb
- Shell Type Options
- Semi-open, Closed
GSH520-500
- Capacity
- 0.65 yd³
- Maximum Lift Capacity
- 17637 lb
- Shell Type Options
- Semi-open, Closed
GSH420-750-S
- Capacity
- 1 yd³
- Maximum Lift Capacity
- 17637 lb
- Shell Type Options
- Semi-open
GSH420-600-S
- Capacity
- 0.75 yd³
- Maximum Lift Capacity
- 17637 lb
- Shell Type Options
- Semi-open
GSH420-500-S
- Capacity
- 0.65 yd³
- Maximum Lift Capacity
- 17637 lb
- Shell Type Options
- Semi-open
S70 S Type Excavator Coupler: 566-2349
- Weight
- 571 lb
- Lifting Hook Capacity
- 8 ton (US)
- Width
- 17.72 in
Heavy Duty Bucket 1050 mm (42 in)
- Width
- 42 in
- Capacity
- 1.31 yd³
- Weight
- 1867 lb
Heavy Duty Bucket 1200 mm (48 in)
- Width
- 48 in
- Capacity
- 1.56 yd³
- Weight
- 2030 lb
Specifications
Engine
- Net Power - ISO 9249
- 172HP
- Engine Model
- Cat C7.1e TA
- Engine Power - ISO 14396
- 174HP
- Bore
- 4in
- Stroke
- 5in
- Displacement
- 428in³
Weights
- Operating Weight
- 54900lb
Working Ranges & Forces
- Maximum Digging Depth
- 22.1ft
- 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
- 32.4ft
- Maximum Cutting Height
- 31ft
- Maximum Loading Height
- 21.3ft
- Minimum Loading Height
- 7.1ft
- Maximum Depth Cut for 2440 mm (8 ft) Level Bottom
- 21.6ft
- Maximum Vertical Wall Digging Depth
- 18.8ft
- Bucket Digging Force - ISO
- 34308lbf
- Stick Digging Force - ISO
- 26094lbf
Hydraulic System
- Main System - Maximum Flow
- 429 l/min (113 gal/min)
- Maximum Pressure - Equipment
- 5075psi
- Maximum Pressure - Travel
- 4974psi
- Maximum Pressure - Swing
- 3988psi
Swing Mechanism
- Swing Speed
- 11.25r/min
- Maximum Swing Torque
- 60300ft·lbf
Service Refill Capacities
- Fuel Tank Capacity
- 86.6gal (US)
- Cooling System
- 6.6gal (US)
- Engine Oil
- 6.6gal (US)
- Swing Drive - Each
- 3.2gal (US)
- Final Drive - Each
- 1.3gal (US)
- Hydraulic System - Including Tank
- 61.8gal (US)
- Hydraulic Tank
- 30.4gal (US)
- DEF Tank
- 10.8gal (US)
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
- 9.9ft
- Handrail Height
- 9.9ft
- Shipping Length
- 31.3ft
- Tail Swing Radius
- 9.3ft
- Counterweight Clearance
- 3.5ft
- Ground Clearance
- 1.7ft
- Track Length
- 14.7ft
- Length to Center of Rollers
- 12ft
- Track Gauge
- 7.9ft
- Transport Width
- 9.9ft
Standard/Optional Features
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
-
- Cat Product Link™
- Remote Flash
- Remote Troubleshoot
- Cat Grade with 2D
- Cat Grade with Assist
- Cat Payload
- E-Fence
- Lift assist
-
- 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
- Biodiesel capability up to B20
-
- 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
-
- Rear and right-hand-sideview cameras
- 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
-
- 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 (Turkey only)
- 2.9 m (9'6") HD Reach stick (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
- Auxiliary relay
-
- Cat Technology
-
- Cat Grade with Advanced 2D
- Cat Grade with single GNSS
- Cat Grade with 3D dual GNSS
-
- Engine
-
- -32°C (-25°F) cold start capability
-
- Hydraulic System
-
- Boom and stick lowering check valves
- Hammer return filter circuit
- Advanced tool control (two pump, one/two way high-pressure flow)
- Medium-pressure circuit
- Quick coupler circuit for Cat Pin Grabber
-
- Safety And Security
-
- Cat Detect People Detection
- 360° visibility
- Swing alarm
- Cat Command remote control
- Inspection lighting
-
- Service And Maintenance
-
- Integrated vehicle health management system
-
- Undercarriage And Structures
-
- 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
- 4.2 mt (9,300 lb) counterweight
- 5.4 mt (11,900 lb) counterweight
Attachments
Cat® Grade Connectivity
H120 S Hydraulic Hammer
- Impact Energy Class
- 3500 ft·lbf
- Blows per Minute
- 350-620
- Maximum Operating Weight
- 4101 lb
H130 GC S Hammer
- Impact Energy Class
- 4425 ft-lb
- Blows per Minute
- 350-700
- Maximum Operating Weight
- 5471.4 lb
H120 GC S Hammer
- Impact Energy Class
- 2950 ft-lb
- Blows per Minute
- 400-800
- Maximum Operating Weight
- 3927 lb
GSH525-950
- Capacity
- 1.25 yd³
- Maximum Lift Capacity
- 22046 lb
- Shell Type Options
- Semi-open, Closed
GSH525-750
- Capacity
- 1 yd³
- Maximum Lift Capacity
- 22046 lb
- Shell Type Options
- Semi-open, Closed
GSH425-950-S
- Capacity
- 1.25 yd³
- Maximum Lift Capacity
- 22046 lb
- Shell Type Options
- Semi-open
GSH520-750
- Capacity
- 1 yd³
- Maximum Lift Capacity
- 17637 lb
- Shell Type Options
- Semi-open, Closed
GSH425-750-S
- Capacity
- 1 yd³
- Maximum Lift Capacity
- 22046 lb
- Shell Type Options
- Semi-open
GSH520-600
- Capacity
- 0.75 yd³
- Maximum Lift Capacity
- 17637 lb
- Shell Type Options
- Semi-open, Closed
GSH520-500
- Capacity
- 0.65 yd³
- Maximum Lift Capacity
- 17637 lb
- Shell Type Options
- Semi-open, Closed
GSH420-750-S
- Capacity
- 1 yd³
- Maximum Lift Capacity
- 17637 lb
- Shell Type Options
- Semi-open
GSH420-600-S
- Capacity
- 0.75 yd³
- Maximum Lift Capacity
- 17637 lb
- Shell Type Options
- Semi-open
GSH420-500-S
- Capacity
- 0.65 yd³
- Maximum Lift Capacity
- 17637 lb
- Shell Type Options
- Semi-open
S70 S Type Excavator Coupler: 566-2349
- Weight
- 571 lb
- Lifting Hook Capacity
- 8 ton (US)
- Width
- 17.72 in
Heavy Duty Bucket 1050 mm (42 in)
- Width
- 42 in
- Capacity
- 1.31 yd³
- Weight
- 1867 lb
Heavy Duty Bucket 1200 mm (48 in)
- Width
- 48 in
- Capacity
- 1.56 yd³
- Weight
- 2030 lb
