Mini Excavators

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Details

Net Power
45 HP

Operating Weight
9867 lb

Dig Depth
138.2 in

Contact

Foley Equipment Sales

+1 (316) 943-4211

Request a Quote

Overview

Mini Excavators Inspired by Our Customers

The Cat® 304 Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.

Benefits

Industry First Features

Cat Exclusives in a Mini Excavator

Lower Total Ownership Costs

with extended service intervals, lower repair costs and easy service access

More Performance

in lifting, digging and multi-function capability

Features at a Glance

ALL DAY COMFORT

Choose either a canopy (not available in some regions) or a sealed and pressurized cab which can be equipped with air conditioning, adjustable wrist rests, and a suspension seat to help keep you working comfortably all day long.

EASY TO OPERATE

Controls are easy to use and the intuitive Next Generation LCD monitor provides easy to read machine information. An advanced touchscreen monitor can also be equipped as an upgrade option.

STICK STEER TRAVEL MODE

Moving around the job site is even easier with the Cat Stick Steer option. Easily switch from traditional travel controls with levers and pedals to joystick controls to move the machine and to operate the blade. The benefit of less effort and improved control is in your hands!

BIG PERFORMANCE IN A SMALL MACHINE

Strong lift and dig performance helps you get the job done faster. The reduced radius tail swing design provides exceptional stability and performance. With a maximum width of 1700 mm (67 in), the 304 can access those hard to get into areas. Dozer float allows for easy clean up. An angle blade is also an option for finished grading and easier backfilling applications.

SAFETY ON THE JOB SITE

Your safety is our top priority. The Cat mini excavator is designed to help keep you safe on the job. Courtesy work lights and a fluorescent retractable seat belt are just a couple of the safety features we’ve built into the machine.

SIMPLE SERVICE FOR LESS DOWNTIME

Maintenance is quick and easy on the Cat mini excavator. Routine check points are easy to access at ground level through the side doors.

LOWER OPERATING COSTS

Equipped with features such as auto idle, auto engine shutdown, and efficient hydraulics with a variable displacement pump, the Cat mini excavator was designed with reducing your operating costs in mind.

SUSTAINABILITY

The Cat® C1.7 engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
Cat 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.
Auto Idle helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
Cruise control helps you maintain a constant speed as you travel across your jobsite saving fuel and reducing greenhouse gas emissions.
The Cat® Seat Belt Reminder provides audible and visual warnings to remind operators to buckle up during machine operation. The easy-to-install system is compatible with all equipment brands to help ensure operator safety.
Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.(if equipped)
Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency by allowing your Cat dealer to virtually test the machine while working. Once a problem is identified, a technician can fix it the first time, saving time and money.(if equipped)
Cat Grade with advanced 2D and 3D technologies combine advanced guidance with optional automated machine control helping you reach grading targets while reducing fuel burn and greenhouse gas emissions by improving efficiency, job site productivity, and accuracy. (if equipped).

*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)

Specifications

Full Specifications

Engine: Net Power
45 HP

Engine Model
C1.7 Turbo

Gross Power - 2,400 rpm - SAE J1995:2014
48.4 HP

Bore
3.3 in

Emissions
Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.

Stroke
3.9 in

Displacement
101 in³

Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
45 HP

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

Note (2)
**Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.

Note (1)
*Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight.

Maximum Operating Weight with Cab**
9867 lb

Minimum Operating Weight with Cab*
8875 lb

Weight Increase from Minimum Configuration: Steel Tracks
430 lb

Counterweight
496 lb

Angle Blade
243 lb

Long Stick
66 lb

Travel System: Ground Pressure - Minimum Weight
4.2 psi

Maximum Traction Force - Low Speed
7329 lbf

Travel Speed - Low
2.2 mile/h

Ground Pressure - Maximum Weight
4.9 psi

Travel Speed - High
3.2 mile/h

Maximum Traction Force - High Speed
4271 lbf

Gradeability - Maximum
30 degrees

Service Refill Capacities: Cooling System
2.9 l

Engine Oil
1.6 gal (US)

Hydraulic System
17 gal (US)

Fuel Tank
17 gal (US)

Hydraulic Tank
14 gal (US)

Hydraulic System: Operating Pressure - Travel
3553 psi

Auxiliary Circuit - Secondary - Pressure
3553 psi

Digging Force - Stick - Long
4316 lbf

Auxiliary Circuit - Secondary - Flow
7 gal/min

Pump Flow at 2,400 rpm
25 gal/min

Operating Pressure - Swing
2611 psi

Auxiliary Circuit - Primary - Flow
21 gal/min

Auxiliary Circuit - Primary - Pressure
3553 psi

Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.

Type
Load Sensing Hydraulics with Variable Displacement Piston Pump

Digging Force - Stick - Standard
4721 lbf

Digging Force - Bucket
8588 lbf

Operating Pressure - Equipment
3553 psi

Swing System: Boom Swing - Right
50 Degrees

Machine Swing Speed
9 r/min

Boom Swing - Left
78 Degrees

Blade: Angle Blade Height
14.2 in

Straight Blade Height
14.2 in

Straight Blade Width
66.9 in

Angle Blade Width
66.9 in

Angle Blade - Right
25 Degrees

Angle Blade - Left
25 Degrees

Certification - Cab and Canopy: Roll Over Protective Structure (ROPS)
ISO 12117-2:2008

Top Guard
ISO 10262:1998 (Level I)

Tip Over Protective Structure (TOPS)
ISO 12117:1997

Sound: Average Exterior Sound Pressure (ISO 6395:2008)
97 dB(A)

Operator Sound Pressure (ISO 6396:2008)
76 dB(A)

Note
European Union Directive “2000/14/EC”

Dimensions - Standard Stick: Maximum Reach - Ground Level
204.7 in

Vertical Wall
94.3 in

Note
*Overall Shipping Length depends on blade position during shipment.

Tail Swing with Counterweight
51.2 in

Boom In Reach
88.8 in

Dig Depth
126.4 in

Maximum Dig Height
198.4 in

Maximum Blade Height
16.5 in

Swing Bearing - Height
21.9 in

Boom Swing - Left
20.9 in

Stick Length
54.9 in

O/A Undercarriage Length
87 in

Track Belt/Shoe Width
13.8 in

Boom Height - Shipping Position
63.8 in

Boom Swing - Right
28.7 in

Maximum Dump Clearance
143.5 in

Ground Clearance
12 in

Maximum Reach
209.8 in

O/A Shipping Height
100 in

Tail Swing without Counterweight
47.4 in

Maximum Blade Depth
18.7 in

Overall Shipping Length*
194.9 in

Dimensions - Long Stick: Dig Depth
138.2 in

Maximum Blade Depth
18.7 in

O/A Shipping Height
100 in

Maximum Dump Clearance
147.2 in

Stick Length
66.7 in

Maximum Dig Height
201.8 in

Maximum Reach - Ground Level
214.4 in

Track Width
66.9 in

Tail Swing with Counterweight
51.2 in

Swing Bearing - Height
21.9 in

Boom Height - Shipping Position
75.2 in

Boom Swing - Left
20.9 in

Maximum Reach
219.3 in

Boom In Reach
92.1 in

Boom Swing - Right
28.7 in

Track Belt/Shoe Width
13.8 in

Vertical Wall
99.8 in

Maximum Blade Height
16.5 in

Note
*Overall Shipping Length depends on blade position during shipment.

Overall Shipping Length*
194.9 in

Ground Clearance
12 in

O/A Undercarriage Length
87 in

Tail Swing without Counterweight
47.4 in

Sustainability: Recyclability
96%

Equipment

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)
Top Guard ISO 10262:1998 Level I
ROPS – ISO 12117-2:2008
TOPS – ISO 12117:1997
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

ELECTRICAL

12 Volt Battery
Software (machine and monitor)
Maintenance Free Battery
Battery Disconnect
12 Volt Power Socket
Travel Alarm (optional in some regions)

OTHER

Counterweight (225 kg/496 lb)

Optional Equipment

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
LED Front Lights
LED Front and Rear Lights
LED Boom Light
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