304 Mini Excavator

304 Mini Excavator

Mini Excavators Inspired by Our Customers

4 Industry First Features

Cat Exclusives in a Mini Excavator
Up to 10% Lower Total Ownership Costs

with extended service intervals, lower repair costs and easy service access
Up to 20% More Performance

in lifting, digging and multi-function capability

Bore	3.3 in
Displacement	101 in³
Emissions	Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Engine Model	C1.7 Turbo
Gross Power - 2,400 rpm - SAE J1995:2014	48.4 HP
Net Power	45 HP
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.
Stroke	3.9 in

Maximum Operating Weight with Cab**	9867 lb
Maximum Operating Weight with Canopy**	9647 lb
Minimum Operating Weight with Cab*	8875 lb
Minimum Operating Weight with Canopy*	8655 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.
Operating Weight	9867 lb

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

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

Roll Over Protective Structure (ROPS)	ISO 12117-2:2008
Tip Over Protective Structure (TOPS)	ISO 12117:1997
Top Guard	ISO 10262:1998 (Level I)

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

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

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