(248) 349-4800

304 Mini Excavator

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Product Specs

Engine

Net Power
45 hp
Engine Model
C1.7 Turbo
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
45 hp
Gross Power - ISO 14396
48.4 hp
Bore
3.3 in
Stroke
3.9 in
Displacement
101 in³
Emissions
Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Note
Net power advertised is the power available at the flywheel when the engine is at rated speed and rated power when the engine is installed with the factory configured fan, air intake system, exhaust system, and alternator with a minimum alternator load.

Weights

Operating Weight
9867 lb
Minimum Operating Weight with Canopy*
8655 lb
Maximum Operating Weight with Canopy**
9647 lb
Minimum Operating Weight with Cab*
8875 lb
Maximum Operating Weight with Cab**
9867 lb
Note (1)
*Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight.
Note (2)
**Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.

Dimensions - Long Stick

Dig Depth
138.2 in
Vertical Wall
99.8 in
Maximum Reach - Ground Level
214.4 in
Maximum Reach
219.3 in
Maximum Dig Height
201.8 in
Maximum Dump Clearance
147.2 in
Boom In Reach
92.1 in
Tail Swing without Counterweight
47.4 in
Tail Swing with Counterweight
51.2 in
Maximum Blade Height
16.5 in
Maximum Blade Depth
18.7 in
Boom Height - Shipping Position
75.2 in
O/A Shipping Height
100 in
Swing Bearing - Height
21.9 in
O/A Undercarriage Length
87 in
Overall Shipping Length*
194.9 in
Boom Swing - Right
28.7 in
Boom Swing - Left
20.9 in
Track Belt/Shoe Width
13.8 in
Track Width
66.9 in
Ground Clearance
12 in
Stick Length
66.7 in
Note
*Overall Shipping Length depends on blade position during shipment.

Weight Increase from Minimum Configuration

Counterweight
496 lb
Long Stick
66 lb
Steel Tracks
430 lb
Angle Blade
243 lb

Dimensions - Standard Stick

Dig Depth
126.4 in
Vertical Wall
94.3 in
Maximum Reach - Ground Level
204.7 in
Maximum Reach
209.8 in
Maximum Dig Height
198.4 in
Maximum Dump Clearance
143.5 in
Boom In Reach
88.8 in
Tail Swing without Counterweight
47.4 in
Tail Swing with Counterweight
51.2 in
Maximum Blade Height
16.5 in
Maximum Blade Depth
18.7 in
Boom Height - Shipping Position
63.8 in
O/A Shipping Height
100 in
Swing Bearing - Height
21.9 in
O/A Undercarriage Length
87 in
Overall Shipping Length*
194.9 in
Boom Swing - Right
28.7 in
Boom Swing - Left
20.9 in
Track Belt/Shoe Width
13.8 in
Ground Clearance
12 in
Stick Length
54.9 in
Note
*Overall Shipping Length depends on blade position during shipment.

Travel System

Travel Speed - High
3.2 mile/h
Travel Speed - Low
2.2 mile/h
Maximum Traction Force - High Speed
4271 lbf
Maximum Traction Force - Low Speed
7329 lbf
Ground Pressure - Minimum Weight
4.2 psi
Ground Pressure - Maximum Weight
4.9 psi
Gradeability - Maximum
30 degrees

Service Refill Capacities

Cooling System
2.9 gal (US)
Engine Oil
1.6 gal (US)
Fuel Tank
17 gal (US)
Hydraulic Tank
14 gal (US)
Hydraulic System
17 gal (US)

Air Conditioning System

Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf (Europe) (Global Warming Potential = 1430). See label or instruction manual for gas refrigerant identification. The system contains 0.75 kg (1

Hydraulic System

Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Pump Flow at 2,400 rpm
25 gpm
Operating Pressure - Equipment
3553 psi
Operating Pressure - Travel
3553 psi
Operating Pressure - Swing
2611 psi
Auxiliary Circuit - Primary - Flow
21 gpm
Auxiliary Circuit - Primary - Pressure
3553 psi
Auxiliary Circuit - Secondary - Flow
7 gpm
Auxiliary Circuit - Secondary - Pressure
3553 psi
Digging Force - Stick - Standard
4721 lbf
Digging Force - Stick - Long
4316 lbf
Digging Force - Bucket
8588 lbf
Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.

Swing System

Machine Swing Speed
9 r/min
Boom Swing - Left
78 Degrees
Boom Swing - Right
50 Degrees

Blade

Straight Blade Width
66.9 in
Straight Blade Height
14.2 in
Angle Blade Width
66.9 in
Angle Blade Height
14.2 in
Angle Blade - Left
25 Degrees
Angle Blade - Right
25 Degrees

Certification - Cab and Canopy

Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Top Guard
ISO 10262:1998 (Level I)

Sound

Operator Sound Pressure (ISO 6396:2008)
76 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008)
97 dB(A)
Note
European Union Directive “2000/14/EC”

Sustainability

Recyclability
96%

Standard Equipment

  • Engine
    • Cat® C1.7 Turbo Engine (U.S. EPA Tier 4 Final/EU Stage V)
    • Automatic Engine Idle
    • Automatic Engine Shutdown
    • Automatic Two Speed Travel
    • Fuel Water Separator
    • Power on Demand (not available in all regions)
    • Variable Displacement Piston Pump
    • Load Sensing/Flow Sharing Hydraulics
  • Hydraulics
    • Smart Tech Electronic Pump
    • Accumulator
    • Automatic Swing Brake
    • Auxiliary Hydraulic Lines
    • One and Two Way Auxiliary Flow
    • Continuous Auxiliary Flow
    • Auxiliary Line Quick Disconnects
  • Operator Environment
    • Canopy or Cab (Canopy not available in some regions)
    • Stick Steer Mode
    • Travel Cruise Control
    • Control Pattern Changer (optional in some regions)
    • Adjustable Wrist Rests
    • Washable Floor Mat
    • Travel Pedals and Hand Levers
    • Machine Security – Standard Key with Pass Code
    • Fabric Suspension Seat (Cab only)
    • Vinyl Suspension Seat (Canopy only)
    • Hydraulic Lockout – All Controls
    • Retractable High Visibility Seat Belt (75 mm/3 in)
    • Coat Hook
    • Cup Holder
    • Storage Pocket
    • Skylight
    • Mounting Bosses for Front
    • Signaling/Warning Horn
    • Interior Light (Cab only)
    • Boom Light, Halogen (not available in all regions)
    • Utility Space for Mobile Phone
    • Next Generation Color LCD Monitor (IP66)
      – Fuel Level and Coolant Temperature Gauges
      – Maintenance and Machine Monitoring
      – Performance and Machine Adjustments
      – Numeric Security Code
      – Multiple Languages
      – Hour Meter with Wake Up Switch
      – Jog Dial (cab only)
  • Undercarriage
    • Rubber Belt (350 mm/13.8 in)
    • Dozer Straight Blade
    • Dozer Blade Float
    • Tie Downs on Track Frame
  • Boom, Stick And Linkages
    • One Piece Boom (2500 mm/98.4 in)
    • Standard Stick (1395 mm/54.9 in)
    • Front Shovel Capable – Pin-On
    • Thumb Ready
    • Certified Lifting Eye
    • Hydraulic Quick Coupler Lines
  • Electrical
    • 12 Volt Battery
    • Software (machine and monitor)
    • Maintenance Free Battery
    • Lock Out/Tag Out Battery Disconnect
    • 12 Volt Power Socket
    • Product Link™ Elite
    • Travel Alarm (optional in some regions)
  • Guarding
    • ROPS – ISO 12117-2:2008
    • Top Guard ISO 10262:1998 Level I
  • Other
    • Eco Drain

Attachments

  • Operator Environment
    • Cab with Air Conditioning
    • Cab with Heater
    • No Travel Pedals and Hand Levers (optional in some regions)
    • Machine Security – Push to Start with Key Fob/Pass Code
    • Seat Belt Reminder System
    • LED Front and Rear Lights
    • Mirrors, Left, Right and Rear
    • Camera
    • Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)
    • Next Generation Advanced Monitor
      – Touch Screen
      – Site Reference System
      – High Definition Camera Capable (IP68 and IP69K)
      – Numeric Security Code
  • Undercarriage
    • Steel Track (350 mm/13.8 in)
    • Angle Blade
  • Boom, Stick And Linkages
    • Long Stick (1695 mm/66.7 in)
    • Front Shovel Capable – Dual Lock Manual Coupler
    • Front Shovel Capable – Hydraulic Coupler
    • Attachments including Couplers, Thumbs, Buckets, Augers and Hammers
    • 2nd Auxiliary Hydraulic Lines
    • Bucket Divert Lines
    • Boom Lowering Check Valve (Europe Standard)
    • Stick Lowering Check Valve (Europe Standard)
  • Electrical
    • Cat Grade Advanced 2D
    • Cat Grade 3D
  • Guarding
    • Top Guard ISO 10262:1998 (Level II)
    • Front Guard (Mesh) ISO 10262:1998 (Level I)
    • Front Guard (Heavy Duty) ISO 10262:1998 Level (II)
  • Other
    • Bio Oil Capable
    • Water Jacket Heater
    • Counterweight (225 kg/496 lb)

While Michigan CAT is now MacAllister Machinery, all other aspects of our interactions with customers and vendors will not change – including our banking information, where customers remit payment, or where vendors submit invoices for payment.

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