Caterpillar 304E2 CR Mini Excavator Specs

Category: Mini Excavators ➔
Manufacturer: Caterpillar ➔
Model: 304E2 CR ➔

The Caterpillar 304E2 CR is a compact mini excavator designed for construction, utility, landscaping, and site preparation work in confined spaces. The zero tail swing design supports operation close to walls and obstacles, while the reduced radius layout improves maneuverability on tight job sites. The 304E2 CR is typically equipped with a diesel engine, hydraulic auxiliary circuits, and a dozer blade for grading and backfilling. It is commonly used for trenching, digging, material handling, and light demolition. Caterpillar's 304E2 CR combines transportability, operator visibility, and versatile attachment compatibility in a small excavator platform.

General Specifications

Caterpillar 304E2 CR Mini Excavator General Specifications specifications
Engine	C2.4 — Starting 2021 Model Year
Max Digging Depth	77.00 ft (23.47 m) — Starting 2021 Model Year
Net Power	40.20 hp (29.98 kw) — Starting 2021 Model Year
Operating Weight	8,930.00 lbs (4,049.89 kg) — Starting 2021 Model Year

Blades

Caterpillar 304E2 CR Mini Excavator Blades specifications
Blade Height	12.80 in (32.51 cm)
Blade Lift Height	15.70 in (39.88 cm)
Blade Width	6.40 ft (1.95 m)
Dig Depth	18.50 in (46.99 cm)

Boom/Stick Excavator Option 1

Caterpillar 304E2 CR Mini Excavator Boom/Stick Excavator Option 1 specifications
Max Digging Depth	10.30 ft (3.14 m)
Max Reach Along Ground	17.10 ft (5.21 m)

Dimensions - Long Stick

Caterpillar 304E2 CR Mini Excavator Dimensions - Long Stick specifications
Boom In Reach	87.00 in (220.98 cm)
Boom Swing - Left	26.00 in (66.04 cm)
Boom Swing - Right	29.00 in (73.66 cm)
Dig Depth	135.00 in (342.90 cm)
Maximum Blade Depth	19.00 in (48.26 cm)
Maximum Blade Height	16.00 in (40.64 cm)
Maximum Dig Height	200.00 in (508.00 cm)
Maximum Dump Clearance	145.00 in (368.30 cm)
Maximum Reach	220.00 in (558.80 cm)
Maximum Reach - Ground Level	215.00 in (546.10 cm)
O/A Shipping Length	194.00 in (492.76 cm)
O/A Track Width	77.00 in (195.58 cm)
O/A Undercarriage Length	87.00 in (220.98 cm)
Swing Bearing - Height	22.00 in (55.88 cm)
Track Belt/Shoe Width	14.00 in (35.56 cm)
Vertical Wall	101.00 in (256.54 cm)

Dimensions - Standard Stick

Caterpillar 304E2 CR Mini Excavator Dimensions - Standard Stick specifications
Boom In Reach	83.00 in (210.82 cm)
Boom Swing - Left	26.00 in (66.04 cm)
Boom Swing - Right	29.00 in (73.66 cm)
Dig Depth	123.00 in (312.42 cm)
Maximum Blade Depth	19.00 in (48.26 cm)
Maximum Blade Height	16.00 in (40.64 cm)
Maximum Dig Height	196.00 in (497.84 cm)
Maximum Dump Clearance	141.00 in (358.14 cm)
Maximum Reach	211.00 in (535.94 cm)
Maximum Reach - Ground Level	206.00 in (523.24 cm)
O/A Shipping Length	190.00 in (482.60 cm)
O/A Track Width	77.00 in (195.58 cm)
O/A Undercarriage Length	87.00 in (220.98 cm)
Swing Bearing - Height	22.00 in (55.88 cm)
Track Belt/Shoe Width	14.00 in (35.56 cm)
Vertical Wall	95.00 in (241.30 cm)

Engine

Caterpillar 304E2 CR Mini Excavator Engine specifications
Bore	3.40 in (8.64 cm)
Displacement	146.00 cu in (2,392.52 cu cm)
Emissions	*Meets U.S. EPA Tier 4 Final/EU Stage IIIA emission standards.
Engine Model	Cat C2.4
Stroke	4.00 in (10.16 cm)

Hydraulic System

Caterpillar 304E2 CR Mini Excavator Hydraulic System specifications
Digging Force - Bucket	8,498.00 lbs (3,853.97 kg)
Digging Force - Stick - Long	4,384.00 lbs (1,988.21 kg)
Digging Force - Stick - Standard	4,856.00 lbs (2,202.27 kg)
Hydraulic System Type	Load Sensing Hydraulics with Variable Displacement Piston Pump
Operating Pressure - Equipment	3553 psi
Operating Pressure - Swing	3132 psi
Operating Pressure - Travel	3553 psi

Service Refill Capacities

Caterpillar 304E2 CR Mini Excavator Service Refill Capacities specifications
Cooling System	1.50 gal (5.68 l)
Engine Oil	2.50 gal (9.46 l)
Fuel Tank	12.20 gal (46.18 l)
Hydraulic System	17.20 gal (65.10 l)
Hydraulic Tank	11.20 gal (42.39 l)

Swing System

Caterpillar 304E2 CR Mini Excavator Swing System specifications
Boom Swing - Left - With Stop	55 degrees
Boom Swing - Left - Without Stop	70 degrees
Machine Swing Speed	10 rpm

Travel System

Caterpillar 304E2 CR Mini Excavator Travel System specifications
Gradeability - Maximum	30 degrees
Maximum Traction Force - High Speed	3,799.00 lbs (1,722.90 kg)
Maximum Traction Force - Low Speed	6,969.00 lbs (3,160.54 kg)
Travel Speed - High	3.20 mph (5.15 kph)
Travel Speed - Low	2.10 mph (3.38 kph)

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