320

Heavy Equipment

320

Net Flywheel Power
162 HP / 121 kW
Operating Weight
49600 lb / 22500 kg
Gross Power - ISO 14396/SAE J1995
164 HP / 122 kW

The Cat® 320 excavator brings premium performance with simple-to-use technologies like Cat GRADE with 2D, Grade Assist, and Payload - all standard equipment from the factory to boost your operator efficiencies up to 45%. Combine these features with a new cab, longer maintenance intervals that lower your maintenance costs up to 15%, and a power system that reduces fuel consumption by up to 25% and you have a low-cost-per-unit-of-production excavator that's perfect for medium- to heavy-duty applications.

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320 Key Features Brochure 320 Product Brochure 320 Technical Specifications (North America) 320 Technical Specifications (Australia-New Zealand) 320 Techncial Specifications (Europe)
Engine
Engine Model Cat C4.4 ACERT
Net Flywheel Power 162 HP / 121 kW
Gross Power - ISO 14396/SAE J1995 164 HP / 122 kW
Net Power - SAE J1349/ISO 9249 162 HP / 121 kW
Engine RPM - Operation 1650 r/min
Engine RPM - Travel 1800 r/min
Bore 4 in / 105 mm
Stroke 5 in / 127 mm
Displacement 269 in³ / 4.4 l
Hydraulic System
Main System - Maximum Flow - Implement 113 gal/min / 429 l/min
Maximum Pressure - Equipment - Normal 5075 psi / 35000 kPa
Maximum Pressure - Equipment - Heavy Lift Mode 5510 psi / 38000 kPa
Maximum Pressure - Travel 4974 psi / 34300 kPa
Maximum Pressure - Swing 3886 psi / 26800 kPa
Weights
Operating Weight 49600 lb / 22500 kg
Operating Weight - North America 49600 lb / 22500 kg
Note (1) Reach boom, R2.9 (9'6") stick, HD 1.19 m3 (1.56 yd3) bucket and 790 mm (31 in) triple grouser shoes, 4.2 mt (9,300 lb) counterweight
Operating Weight - Europe/Australia & New Zealand 48300 lb / 21900 kg
Note (2) Reach boom, R2.9 (9'6") stick, HD 1.19 m3 (1.56 yd3) bucket and 600 mm (24 in) triple grouser shoes, 4.2 mt (9,300 lb) counterweight
Service Refill Capacities
Fuel Tank Capacity 86.6 gal (US) / 345 l
Cooling System 6.6 gal (US) / 25 l
Engine Oil 4 gal (US) / 15 l
Swing Drive - Each 1.3 gal (US) / 5 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 10.3 gal (US) / 39 l
Dimensions
Boom Reach 5.7 m (18'8")
Stick Reach 2.9 m (9'6")
Bucket 1.19 m3 (1.56 yd3)
Shipping Height - Top of Cab 9.8 ft / 2960 mm
Handrail Height 9.8 ft / 2950 mm
Shipping Length 31 ft / 9530 mm
Tail Swing Radius 9.3 ft / 2830 mm
Track Length to Center of Rollers 12 ft / 3650 mm
Ground Clearance 1.6 ft / 470 mm
Track Gauge 7.9 ft / 2380 mm
Transport Width - 600 mm (24”) Shoes 9.8 ft / 2980 mm
Transport Width - 790 mm (31 in) Shoes 10.4 ft / 3170 mm
Counterweight Clearance 3.4 ft / 1048 mm
Working Ranges & Forces
Boom Reach 5.7 m (18'8")
Stick Reach 2.9 m (9'6")
Bucket 1.19 m3 (1.56 yd3)
Maximum Digging Depth 22.1 ft / 6720 mm
Maximum Reach at Ground Level 32.4 ft / 9860 mm
Maximum Cutting Height 30.8 ft / 9370 mm
Maximum Loading Height 21.4 ft / 6490 mm
Minimum Loading Height 7.1 ft / 2170 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 21.5 ft / 6550 mm
Maximum Vertical Wall Digging Depth 17 ft / 5190 mm
Bucket Digging Force - ISO 38811  / 150 kN
Stick Digging Force - ISO 23911  / 106 kN
Bucket Digging Force - SAE 30104  / 134 kN
Stick Digging Force - SAE 23212  / 103 kN

Standard Equipment

  • CAB
    • ROPS, sound suppression
    • Mechanically adjustable seat
    • High-resolution 203 mm (8 in) LCD touchscreen monitor
  • CAT CONNECT TECHNOLOGY
    • Cat Product Link
    • Cat GRADE with 2D
    • Cat GRADE with Assist
    • Cat PAYLOAD
  • ENGINE
    • Three selectable power modes
    • Auto engine idle shutdown
    • 46°C (115°F) ambient cooling capacity
    • -32°C (-25°F) cold start capability
    • 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
  • BOOM AND STICKS
    • 5.7 m (18'8") reach boom, 2.9 m (9'6") stick
  • UNDERCARRIAGE AND STRUCTURES
    • Tie-down points on base frame
  • 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
  • SERVICE AND MAINTENANCE
    • Sampling ports for Scheduled Oil Sampling (S·O·S)
    • Ground-level and platform-level engine oil dipsticks
    • Remote flash
  • SAFETY AND SECURITY
    • Rearview camera
    • Right-hand-side camera (Europe only)
    • Right-hand mirror
    • Ground-level engine shutoff switch
    • Right-hand handrail and hand hold
    • Signaling/warning horn

Optional Equipment

  • CAB
    • Air-adjustable seat with heat (Deluxe only)
    • High-resolution 254 mm (10 in) LCD touchscreen monitor
  • CAT CONNECT TECHNOLOGY
    • Cat GRADE with Advanced 2D (not available on SLR)
    • Cat GRADE with 3D (not available on SLR)
  • ENGINE
    • 52°C (125°F) high-ambient cooling capacity
  • HYDRAULIC SYSTEM
    • Boom and stick lowering check valves
    • Hammer return filter circuit
    • Combined flow/high-pressure auxiliary circuit
    • Medium-pressure circuit
    • Quick coupler circuit for Cat Pin Grabber
  • BOOM AND STICKS
    • 8.85 m (29'0") SLR boom, 6.28 m (20'7") SLR stick
  • UNDERCARRIAGE AND STRUCTURES
    • 600 mm (24") triple grouser shoes
    • 700 mm (28") triple grouser shoes
    • 790 mm (31") triple grouser shoes
    • 900 mm (35") triple grouser shoes
    • 4200 kg (9,300 lb) counterweight for HD boom and stick
    • 4700 kg (10,400 lb) counterweight for SLR boom and stick
  • SAFETY AND SECURITY
    • Right-hand-side camera
    • 360° visibility

Excavator Rakes

Clear more land in less time with rakes for hydraulic excavators.

Model Weight Width Tine Spacing
B-linkage, 3-tine 1273 lb / 577 kg 33 in / 840 mm 15.75 in / 400 mm
B-linkage, 4-tine 1502 lb / 681 kg 49 in / 1240 mm 15.75 in / 400 mm
B-linkage, 5-tine 1950 lb / 884 kg 65 in / 1640 mm 15.75 in / 400 mm

General Duty

Cat® General Duty Buckets are the perfect choice for general digging, loading and other dirt-handling applications.

Model Width Capacity Weight
General Duty Bucket 900 mm (36 in): 558-7936 36 in / 900 mm 1.24 yd³ / 0.95 m³ 1840 lb / 835 kg

Heavy Duty

Cat® Heavy Duty Buckets are a great all-purpose bucket, ideal for many different material densities and applications like digging, trenching, loading and your other dirt-handling situations.

Model Width Capacity Weight
Heavy Duty Bucket 600 mm (24 in): 558-7937 24 in / 600 mm 0.6 yd³ / 0.46 m³ 1540 lb / 699 kg
Heavy Duty Bucket 900 mm (36 in): 558-7938 36 in / 900 mm 1.06 yd³ / 0.81 m³ 1959 lb / 889 kg
Heavy Duty Bucket 1050 mm (42 in): 558-7939 42 in / 1050 mm 1.31 yd³ / 1 m³ 2085 lb / 946 kg

Contractors' Grapples

For demolition, sorting, and reprocessing work handling irregularly shaped loads and loose materials.

Model Linkage Maximum Jaw Opening Wear Plate Thickness
G120B B 104.4 in / 2651.8 mm 1.18 in / 30 mm

Demolition and Sorting Grapples

Basket-style demolition grapple featuring 360° hydraulic rotation.

Model Weight - Including Bracket Closing Force Cycle Time - Close
G315B 3080 lb / 1400 kg 2.05 Sh Ton / 52 kN 2.2 s
G320B 4125 lb / 1875 kg 2.6 Sh Ton / 66 kN 2.2 s

Hammers

Hammers for Skid Steer Loaders and Mini Hydraulic Excavators

Model Impact Energy Class Blows per Minute
H115E S 3000 ft·lbf / 4067 J 370-800
H120GC 2950 ft-lb / 4 J 400-800
H120GC S 2950 ft-lb / 4 J 400-800

Secondary Pulverizer

Non-rotating hydraulic pulverizer reduces concrete and separates rebar.

Model Closing Force - Tip Closing Force - Rebar Cutter Capacity - Concrete Thickness
P215 117 Sh Ton / 119 t 226 Sh Ton / 230 t 26 in / 650 mm

Pro Series Hydraulic Thumbs

Pro Series Hydraulic Thumbs (Pro and Pro Plus models) offer the best load control and are rugged enough for demolition, handling rip rap and other heavy-duty tasks.

Model Number of Teeth Stored Height Overall Width
Pro Plus, 3-tooth 3 28.1 lb/in / 715 mm 25 lb/in / 636 mm
Pro Plus, 3-tooth 3 25.8 lb/in / 656 mm 22.2 lb/in / 563 mm
Pro Plus, 4-tooth 4 28.1 lb/in / 715 mm 29.8 lb/in / 757 mm
Pro Plus, 4-tooth 4 25.8 lb/in / 656 mm 31.5 lb/in / 799 mm
Pro Plus, 5-tooth 5 28.1 lb/in / 715 mm 36.3 lb/in / 923 mm
Pro Plus, 5-tooth 5 25.8 lb/in / 656 mm 28.6 lb/in / 726 mm
Pro Plus, 6-tooth 6 25.8 lb/in / 656 mm 39.6 lb/in / 1005 mm
Pro, 3-tooth 3 25.9 lb/in / 657 mm 22.2 lb/in / 563 mm
Pro, 3-tooth 3 28.2 lb/in / 717 mm 25 lb/in / 636 mm
Pro, 4-tooth 4 25.9 lb/in / 657 mm 31.5 lb/in / 799 mm
Pro, 4-tooth 4 28.2 lb/in / 717 mm 29.8 lb/in / 757 mm
Pro, 5-tooth 5 25.9 lb/in / 657 mm 28.6 lb/in / 726 mm
Pro, 5-tooth 5 28.2 lb/in / 717 mm 36.4 lb/in / 923 mm
Pro, 6-tooth 6 25.9 lb/in / 657 mm 39.6 lb/in / 1005 mm

Utility Thumbs

Hydraulic thumb functionality, with maximum interchangeability.

Model Length Overall Width
302.4/302.7 Pin on 30.8 in / 783 mm 14.68 in / 373 mm
303/303.5/304 PIN ON 32.2 in / 818 mm 15.2 in / 387 mm
303/303.5/304 PIN ON 32.2 in / 818 mm 13.4 in / 340 mm
305/305.5 PIN ON 37.7 in / 957 mm 18.8 in / 477 mm
305/305.5, PIN ON 37.7 in / 957 mm 15.2 in / 386 mm
308 Pin Grabber 49 in / 1245 mm 18 in / 458 mm
308 Pin on 40.3 in / 1024 mm 18 in / 458 mm
311/312/314, Pin Grabber 61.6 lb/in / 1565 mm 12.6 lb/in / 320 mm
311/312/314, Pin-On 53.4 lb/in / 1355 mm 12.6 lb/in / 320 mm
315/316/318, Pin Grabber 67.5 lb/in / 1715 mm 12.8 lb/in / 324 mm
315/316/318, Pin-On 60.2 lb/in / 1530 mm 12.8 lb/in / 324 mm
318-329, Pin Grabber 77.6 lb/in / 1970 mm 24.1 lb/in / 612 mm
318-329, Pin-On 67.9 lb/in / 1725 mm 16 lb/in / 406 mm

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

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 s / 1.6 s 18 tons 1 s / 1.6 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

Pin Grabber Coupler

Job site confidence plus payload and power.

Model Weight Width - Machine Interface Lifting Eye Working Load Limit
Pin Grabber Excavator Coupler - B-Linkage 837 lb / 380 kg 20.2 in / 512 mm 11 ton (US) / 10 ton (US)

Trash Grapples

For light-duty land clearing, trash handling, brush, rubbish and job site cleanup.

Model Rated Capacity Weight Upper Jaw Width
TG-B 4.5 yd³ / 3.44 m³ 3069 lb / 1392 kg 43 in / 1100 mm

Mobile Scrap & Demolition Shears

Cat® Scrap and Demolition Shears are industry leaders in steel processing. Power and performance in a reliable package, backed by the best dealer network in the world.

Model Apex Force Boom Mounted – Maximum Boom Mounted – Minimum
S2050 Straight Scrap & Demolition Shear 340 ton-f / 3029 kN 29 tons 18 tons

Stiff Link Thumbs

Stiff Link Thumbs feature a rigid link and are attached to the excavator stick with a weld-on bracket. The bucket curls in to the thumb to pick, grab, sort and handle various types of material and objects found on most every job site.

Model Number of Teeth Width Length
401mm (15.8in) 3-tooth 3 15.8 in / 401 mm 58.6 in / 1487 mm
460mm (18.1in) 3-tooth 3 18.1 in / 460 mm 75.5 in / 1918 mm
460mm (18.1in) 3-tooth 3 18.1 in / 460 mm 75.5 in / 1918 mm
490mm (19.3in) 3-tooth 3 19.3 in / 490 mm 80.9 in / 2056 mm
545mm (21.5in) 4-tooth 4 21.5 in / 545 mm 58.5 in / 1486 mm
545mm (21.5in) 4-tooth 4 21.5 in / 545 mm 58.6 in / 1487 mm
601mm (23.7in) 3-tooth 3 23.7 in / 601 mm 81 in / 2057 mm
606mm (23.8in) 4-tooth 4 23.8 in / 606 mm 75.5 in / 1918 mm
606mm (23.9in) 4-tooth 4 23.9 in / 606 mm 75.5 in / 1918 mm
679mm (26.7in) 4-tooth 4 26.7 in / 679 mm 59.3 in / 1507 mm
679mm (26.7in) 4-tooth 4 26.7 in / 679 mm 58.6 in / 1487 mm
729mm (28.7in) 4-tooth 4 28.7 in / 729 mm 80.9 in / 2056 mm
732mm (28.8in) 4-tooth 4 28.8 in / 732 mm 75.5 in / 1918 mm
732mm (28.8in) 4-tooth 4 28.8 in / 732 mm 75.5 in / 1918 mm
756mm (29.8in) 4-tooth 4 29.8 in / 756 mm 81 in / 2057 mm
837mm (33in) 4-tooth 4 33 in / 837 mm 80.9 in / 2056 mm
900mm (35.4in) 4-tooth 4 35.4 in / 900 mm 81 in / 2057 mm

Vibratory Plate Compactors

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

Model Impulse Force Cycles/Minimum Base Plate Width
CVP110 24669 lb / 110 kN 2200 34 in / 864 mm

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
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