336 Excavator

  • Specs Summary
  • Net Power
    40.2 HP (30 kW)
  • Operating Weight
  • Operating Weight
    8996 lb (4080 kg)
  • Maximum Digging Depth

304E2 CR Mini Hydraulic Excavator

The Cat® 304E2 CR Mini Hydraulic Excavator delivers efficient performance, durability and versatility in a compact design to help you work in a variety of applications.
  • Height 12.8 in (325 mm)
  • Boom Swing - Right 29 in (735 mm)
  • Boom Swing - Left 26 in (670 mm)
  • Maximum Reach - Ground Level 206 in (5220 mm)
  • Swing Bearing - Height 22 in (565 mm)
  • Digging Force - Stick - Standard 4856 lb (21.6 kN)
  • O/A Shipping Length 190 in (4820 mm)
  • Maximum Blade Height 16 in (400 mm)
  • Hydraulic System 17.2 gal (US) (65 l)
  • Digging Force - Stick - Long 4384 lb (19.5 kN)
  • Boom In Reach 83 in (2110 mm)
  • Dig Depth 135 in (3430 mm)
  • Machine Swing Speed 10 r/min (10 r/min)
  • Operating Pressure - Travel 3553 psi (245 bar)
  • Fuel Tank 12.2 gal (US) (46 l)
  • Net Power 40.2 HP (30 kW)
  • Engine Model ( )
  • Engine Oil 2.5 gal (US) (9.5 l)
  • Travel Speed - High 3.2 mile/h (5.2 km/h)
  • Maximum Reach - Ground Level 215 in (5470 mm)
  • Gross Power - ISO 14396 41.8 HP (31.2 kW)
  • Digging Force - Bucket 8498 lb (37.8 kN)
  • Vertical Wall 95 in (2420 mm)
  • Maximum Blade Height 16 in (400 mm)
  • Maximum Blade Depth 19 in (470 mm)
  • Maximum Traction Force - High Speed 3799 lb (16.9 kN)
  • Boom In Reach 87 in (2220 mm)
  • Maximum Reach 211 in (5350 mm)
  • O/A Track Width 77 in (1950 mm)
  • Travel Speed - Low 2.1 mile/h (3.3 km/h)
  • Boom Swing - Left 26 in (670 mm)
  • O/A Track Width 77 in (1950 mm)
  • Displacement 146 in³ (2.4 l)
  • Swing Bearing - Height 22 in (565 mm)
  • Boom Swing - Right 29 in (735 mm)
  • Maximum Traction Force - Low Speed 6969 lb (31 kN)
  • Maximum Dig Height 196 in (4980 mm)
  • Maximum Reach 220 in (5590 mm)
  • Track Belt/Shoe Width 14 in (350 mm)
  • Dig Depth 123 in (3130 mm)
  • Vertical Wall 101 in (2560 mm)
  • Maximum Dump Clearance 141 in (3590 mm)
  • Stroke 4 in (102.4 mm)
  • Track Belt/Shoe Width 14 in (350 mm)
  • O/A Undercarriage Length 87 in (2220 mm)
  • O/A Shipping Length 194 in (4930 mm)
  • O/A Undercarriage Length 87 in (2220 mm)
  • Maximum Dig Height 200 in (5070 mm)
  • Bore 3.4 in (87 mm)
  • Maximum Dump Clearance 145 in (3690 mm)
  • Operating Pressure - Swing 3132 psi (216 bar)
  • Maximum Blade Depth 19 in (470 mm)
  • Operating Weight 8996 lb (4080 kg)
  • Weight - Canopy, Standard Stick 8655 lb (3925 kg)
  • Auxiliary Circuit - Secondary (174 bar/2,524 psi) 6.6 gal/min (25 l/min)
  • Pump Flow at 2,200 rpm 26.4 gal/min (100 l/min)
  • Auxiliary Circuit - Primary (186 bar/2,734 psi) 18.5 gal/min (70 l/min)
  • Dig Depth 18.5 in (470 mm)
  • Lift Height 15.7 in (400 mm)
  • Machine Overhang 0 in (0 mm)
  • Boom Height - Shipping Position 58 in (1480 mm)
  • Blade Down - Side 2007 lb (910 kg)
  • Weight - Cab, Long Stick 8996 lb (4080 kg)
  • Blade Up - Front 948 lb (430 kg)
  • Dynamic Operator Sound Pressure Level (ISO 6396:2008) 81 dB(A) (81 dB(A))
  • Blade Up - Side 1808 lb (820 kg)
  • O/A Shipping Height 98 in (2500 mm)
  • Weight - Canopy, Long Stick 8721 lb (3955 kg)
  • Blade Down - Front 1896 lb (860 kg)
  • Tail Swing 38 in (975 mm)
  • Exterior Sound Power Level - ISO 6395:2008* 96 dB(A) (96 dB(A))
  • Tail Swing 38 in (975 mm)
  • Weight - Cab, Standard Stick 8930 lb (4050 kg)
  • Ground Pressure - Cab 4.3 psi (29.5 kPa)
  • O/A Shipping Height 98 in (2500 mm)
  • Ground Pressure - Canopy 4.1 psi (28.1 kPa)
  • Blade Down - Front 3462 lb (1570 kg)
  • Blade Down - Side 1058 lb (480 kg)
  • Blade Up - Front 1808 lb (820 kg)
  • Boom Height - Shipping Position 70 in (1770 mm)
  • Blade Up - Side 948 lb (430 kg)
  • Stick Length - Standard 52 in (1315 mm)
  • Stick Length - Long 64 in (1615 mm)
  • Net Power - 2,200 rpm - ISO 9249/EEC 80/1269 40.2 HP (30 kW)
  • Width 76.8 in (1950 mm)
  • Note ( )
  • Note ( )
  • Cooling System 1.5 gal (US) (5.5 l)
  • Hydraulic Tank 11.2 gal (US) (42.3 l)
  • Operating Pressure - Equipment 3553 psi (245 bar)
  • Maximum Auxiliary Circuit - Secondary - Flow at Pump 6.6 gal/min (25 l/min)
  • Maximum Auxiliary Circuit - Primary - Flow at Pump 17.2 gal/min (65 l/min)
  • Maximum Auxiliary Circuit - Primary - Pressure at Pump 3553 psi (24500 kPa)
  • Maximum Auxiliary Circuit - Secondary - Pressure at Pump 3553 psi (24500 kPa)

Standard Equipment

ENGINE

  • Cat C2.4 diesel engine (meets U.S. EPA Tier 4 Final emission standards for North America, EU Stage V emission standards for Europe and Tier 4 Interim emission standards for all other regions)
  • Automatic engine idle
  • Automatic engine shut-off
  • Automatic two speed travel
  • Diesel Particulate Filter (North America only)
  • Diesel Oxidation Catalyst (North America only)
  • Fuel and water separator
  • Power on demand

HYDRAULIC SYSTEM

  • 1-way and 2-way (combined function)
  • Accumulator
  • Automatic swing parking brake
  • Auxiliary hydraulic lines
  • Adjustable auxiliary relief
  • Auxiliary line quick disconnects
  • Cat interlock system: hydraulic lockout
  • Continuous auxiliary flow
  • Ecology drain
  • Hydraulic oil cooler
  • High definition hydraulics
  • Load sensing/flow sharing

OPERATOR ENVIRONMENT

  • 100% pilot control ergonomic joysticks
  • Adjustable armrests
  • COMPASS: complete, operation, maintenance, performance and security system<ul><li>Multiple languages</li></ul>
  • Cup holder
  • Hydraulic neutral lockout bar
  • Literature holder
  • Pattern changer (optional in Europe)
  • Site reference system: leveling
  • Tool storage area
  • Travel control pedals with hand levers
  • Washable floor mat

UNDERCARRIAGE

  • Dozer blade with float function
  • Track, rubber belt, 350 mm (14 in) width
  • Tie down eyes on track frame
  • Towing eye on base frame

FRONT LINKAGE

  • 200 degree bucket rotation
  • Certified lifting eye on bucket linkage (optional in Europe)
  • Front shovel capable
  • Thumb ready stick

ELECTRICAL

  • 12 volt electrical system
  • 60 ampere alternator
  • 650 CCA maintenance free battery
  • Fuse box
  • Ignition key start/stop switch
  • Slow blow fuse
  • Warning horn

LIGHTS AND MIRRORS

  • Boom light with time delay capability

SAFETY AND SECURITY

  • Anti-theft system (COMPASS)
  • Caterpillar Corporate “One Key” System
  • Door locks
  • Lockable fuel cap
  • Retractable seat belt
  • Roll Over Protective Structure (ROPS) (ISO 12117-2)
  • Tip Over Protective Structure (TOPS) (ISO 12117)
  • Top guard – ISO 10262 (Level 1)
  • Travel alarm (optional in Europe)

TECHNOLOGY

  • Product Link™

Optional Equipment

ENGINE

  • Engine block heater

HYDRAULIC SYSTEM

  • Quick coupler lines
  • Boom lowering check valve
  • Stick lowering check valve
  • Secondary auxiliary hydraulic lines

OPERATOR ENVIRONMENT

  • Cab:<ul><li>Air conditioning</li><li>Heat</li><li>High back suspension seat</li><li>Interior light</li><li>Interlocking front window system</li><li>Radio</li><li>Windshield wiper</li></ul>

UNDERCARRIAGE

  • Power angle blade
  • Track, double grouser (steel), 350 mm (14 in)

FRONT LINKAGE

  • Quick coupler: manual or hydraulic
  • Thumb
  • Buckets
  • Full range of performance matched work tools<ul><li>Auger, hammer, ripper</li></ul>

LIGHTS AND MIRRORS

  • Light, cab with time delay capability
  • Mirror, canopy right
  • Mirror, canopy left
  • Mirror, cab rear

SAFETY AND SECURITY

  • Battery disconnect
  • Beacon socket
  • Front wire mesh guard
  • Rearview camera
  • Vandal guard