Mini Excavators 305 CR - Tier 4 / Stage V
Mini Excavators 305 CR - Tier 4 / Stage V Original price was: $78,679.00.Current price is: $49,567.99.
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Mini Excavators 303.5 CR
Mini Excavators 303.5 CR Original price was: $59,330.00.Current price is: $37,377.99.

Mini Excavators 304

Original price was: $74,536.00.Current price is: $46,957.99.

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Description

Caterpillar · Mini Excavator · Next Generation
3044-Tonne Class · Reduced Radius · Next Generation
Up to 20% more performance over the E2 series. Up to 10% lower owning and operating costs. A narrower 66.9″ track width — 10″ slimmer than the 304 E2 — for access where it counts.
▶ Next Generation Cat Mini Excavator

45 hp
Net Power

9,867 lb
Max Op. Weight

138.2
Dig Depth (Long)

214.4
Max Ground Reach

8,588 lbf
Bucket Dig Force

25 gpm
Pump Flow

66.9
Track Width

vs 304 E2
Up to 20% more performance
Up to 10% lower O&O costs
10″ narrower track width (66.9″ vs 76.9″)
Higher bucket breakout: 8,588 lbf
Deeper standard dig depth
Extended service intervals

Key Benefits & Features

All Day Comfort

Choose either a canopy or a sealed, pressurised cab with air conditioning, adjustable wrist rests, and a suspension seat option for all-day productivity.

Easy to Operate

Intuitive Next Generation LCD monitor provides easy-to-read machine info. Advanced touchscreen monitor available as upgrade option. Common controls across the Cat next gen mini range.

Stick Steer Travel Mode

Cat exclusive — switch from traditional lever/pedal travel controls to joystick-only operation to move the machine and operate the blade. Less effort, more precise control.

Big Performance in a Small Machine

Strong lift and dig performance with reduced radius tail swing design for exceptional stability. 66.9″ max width accesses confined spaces. Dozer float for easy clean-up. Angle blade option for grading.

Safety on the Job Site

Courtesy work lights and fluorescent retractable seat belt included. Designed top-to-bottom for operator safety in any job site environment.

Simple Service for Less Downtime

Routine service check points are at ground level via side doors — no tools, no climbing. Extended oil and filter service intervals versus E2 series.

Lower Operating Costs

Auto idle, auto engine shutdown, and load-sensing variable displacement hydraulics all combine to significantly reduce fuel burn and daily running costs.

Cat Smart Tech Electronic Pump

Advanced electronic pump management optimises hydraulic flow and pressure on demand, reducing wasted energy across the full range of tasks.

Travel Cruise Control

Maintain consistent travel speed without holding the travel controls — reduces operator fatigue on longer site traversals.

What’s Included
  • Cat C1.7 Turbo engine — 45 hp / Tier 4 Final & EU Stage V
  • Load-sensing hydraulics with variable-displacement piston pump
  • Cat Smart Tech electronic pump management
  • Automatic engine idle & automatic engine shutdown
  • Automatic two-speed travel (auto high/low shift)
  • Travel cruise control
  • Stick Steer travel mode (Cat exclusive)
  • Canopy — ROPS / TOPS / ISO Top Guard certified
  • Dual auxiliary hydraulic circuits (21 gpm primary + 7 gpm secondary)
  • One-way, two-way and continuous auxiliary flow modes
  • Auxiliary line quick disconnects
  • Dozer blade — 66.9″ wide with float function
  • Angle blade option (±25°) for grading & backfilling
  • Rubber track belt — 13.8″ (350 mm) shoe width
  • Steel track option available (+430 lb)
  • Extra counterweight option for increased stability (+496 lb)
  • Boom swing: 78° left / 50° right
  • Next Generation LCD monitor (standard)
  • Advanced touchscreen monitor (optional upgrade)
  • ISO or SAE control pattern — switchable
  • Accumulator (for controlled boom/stick lowering)
  • Automatic swing brake
  • Power on Demand (most regions)
  • Fuel water separator
  • Work lights — courtesy lighting standard
  • Fluorescent retractable seat belt
  • Ground-level service access via side doors
  • VisionLink® telematics ready
Next Generation
45 HP C1.7 Turbo
Tier 4 Final / EU Stage V
Stick Steer
ROPS ISO 12117-2:2008
Top Guard ISO 10262 Lvl I
+20% vs E2 Series
96% Recyclable

Full Specifications by Category
Engine
Engine Model Cat C1.7 Turbo
Net Power @ 2,400 rpm (ISO 9249 / 80/1269/EEC) 33.6 kW / 45.0 hp
Gross Power @ 2,400 rpm (SAE J1995:2014) 36.1 kW / 48.4 hp
Bore × Stroke 84.0 mm × 100.0 mm (3.3″ × 3.9″)
Displacement 1.662 L / 101 in³
Emissions Standard U.S. EPA Tier 4 Final & EU Stage V
Hydraulic System
System Type Load-Sensing, Variable Displacement Piston Pump
Pump Flow @ 2,400 rpm 96 L/min / 25 gal/min
Operating Pressure — Equipment 245 bar / 3,553 psi
Operating Pressure — Travel 245 bar / 3,553 psi
Operating Pressure — Swing 180 bar / 2,611 psi
Auxiliary Circuit Primary — Flow / Pressure 65 L/min (21 gpm) / 245 bar (3,553 psi)
Auxiliary Circuit Secondary — Flow / Pressure 28 L/min (7.0 gpm) / 245 bar (3,553 psi)
Bucket Digging Force 38.2 kN / 8,588 lbf
Stick Digging Force — Standard Stick 21.0 kN / 4,721 lbf
Stick Digging Force — Long Stick 19.2 kN / 4,316 lbf
Travel System
Travel Speed — High 5.2 km/h / 3.2 mph
Travel Speed — Low 3.5 km/h / 2.2 mph
Max Traction Force — High Speed 19 kN / 4,271 lbf
Max Traction Force — Low Speed 32.6 kN / 7,329 lbf
Ground Pressure — Minimum Weight 28.7 kPa / 4.2 psi
Ground Pressure — Maximum Weight 33.8 kPa / 4.9 psi
Max Gradeability 30°
Track Belt / Shoe Width 350 mm / 13.8″
Track Width 1,700 mm / 66.9″
Swing System
Machine Swing Speed 9.0 rpm
Boom Swing — Left 78°
Boom Swing — Right 50°
Dozer Blade
Blade Width (Straight / Angle) 1,700 mm / 66.9″
Blade Height (Straight / Angle) 360 mm / 14.2″
Angle Blade — Left / Right 25° / 25°
Max Blade Height (above grade) 420 mm / 16.5″
Max Blade Depth (below grade) 475 mm / 18.7″
Blade Float Function Included
Sustainability & Sound
Recyclability Rating 96%
Operator Sound Pressure (ISO 6396:2008) 76 dB(A)
Exterior Sound Power (ISO 6395:2008) 97 dB(A)
EU Noise Directive 2000/14/EC
Air Conditioning System
Refrigerant R134a (global) or R1234yf (Europe)
Refrigerant Charge 0.75 kg / 0.90 kg / 1.0 kg depending on configuration
CO₂ Equivalent (R134a) 1.430 metric tonnes
CO₂ Equivalent (R1234yf) 0.001 metric tonnes
ROPS Certification ISO 12117-2:2008
Top Guard Level ISO 10262:1998 Level I
Air Conditioning Available — sealed, pressurised cab with A/C (R134a / R1234yf EU) or heater
Adjustable Wrist Rests Included with cab
Suspension Seat Optional upgrade
Next Generation LCD Monitor Standard
Advanced Touchscreen Monitor Optional upgrade
Stick Steer Mode Included (Cat exclusive)
Travel Cruise Control Included
Control Pattern Changer (ISO/SAE) Optional in some regions
Courtesy Work Lights Included
Fluorescent Retractable Seat Belt Included
Service Refill Capacities
Cooling System 11.0 L / 2.9 gal
Engine Oil 6.0 L / 1.6 gal
Fuel Tank 63.0 L / 17.0 gal
Hydraulic Tank 52.0 L / 14.0 gal
Hydraulic System Total 65.0 L / 17.0 gal

Dimensions & Reach

Standard Stick — 54.9″ (1,395 mm)

Dig Depth 3,210 mm / 126.4″
Vertical Wall Depth 2,395 mm / 94.3″
Max Reach — Ground Level 5,200 mm / 204.7″
Maximum Reach 5,330 mm / 209.8″
Max Dig Height 5,040 mm / 198.4″
Max Dump Clearance 3,645 mm / 143.5″
Boom in Reach 2,255 mm / 88.8″
Tail Swing (no c/wt) 1,205 mm / 47.4″
Tail Swing (with c/wt) 1,300 mm / 51.2″
Boom Height (ship) 1,620 mm / 63.8″
O/A Shipping Height 2,540 mm / 100.0″
O/A Shipping Length† 4,950 mm / 194.9″
Undercarriage Length 2,210 mm / 87.0″
Swing Bearing Height 557 mm / 21.9″
Ground Clearance 305 mm / 12.0″
Boom Swing Right / Left offset 730 mm / 530 mm

Long Stick — 66.7″ (1,695 mm)

Dig Depth 3,510 mm / 138.2″
Vertical Wall Depth 2,535 mm / 99.8″
Max Reach — Ground Level 5,445 mm / 214.4″
Maximum Reach 5,570 mm / 219.3″
Max Dig Height 5,125 mm / 201.8″
Max Dump Clearance 3,740 mm / 147.2″
Boom in Reach 2,340 mm / 92.1″
Tail Swing (no c/wt) 1,205 mm / 47.4″
Tail Swing (with c/wt) 1,300 mm / 51.2″
Boom Height (ship) 1,910 mm / 75.2″
O/A Shipping Height 2,540 mm / 100.0″
O/A Shipping Length† 4,950 mm / 194.9″
Undercarriage Length 2,210 mm / 87.0″
Swing Bearing Height 557 mm / 21.9″
Ground Clearance 305 mm / 12.0″
Boom Swing Right / Left offset 730 mm / 530 mm

† Overall Shipping Length depends on blade position during shipment.

Operating Weights
Canopy Configuration
Minimum Operating Weight (canopy)* 3,925 kg / 8,655 lb
Maximum Operating Weight (canopy)** 4,375 kg / 9,647 lb
Cab Configuration
Minimum Operating Weight (cab)* 4,025 kg / 8,875 lb
Maximum Operating Weight (cab)** 4,475 kg / 9,867 lb
Weight Add-Ons from Minimum Configuration
Counterweight 225 kg / 496 lb
Long Stick 30 kg / 66 lb
Steel Tracks (vs rubber) 195 kg / 430 lb
Angle Blade (vs straight) 110 kg / 243 lb

* Minimum: rubber tracks, operator, full fuel, standard stick, straight blade, no bucket, no extra counterweight.
** Maximum: steel tracks, operator, full fuel, long stick, straight blade, extra counterweight, no bucket.

Standard & Optional Equipment
Feature / Item Standard Optional
Engine
Cat C1.7 Turbo — Tier 4 Final / EU Stage V
Automatic Engine Idle
Automatic Engine Shutdown
Automatic Two-Speed Travel
Fuel Water Separator
Variable Displacement Piston Pump
Load Sensing / Flow Sharing Hydraulics
Power on Demand (most regions)
Hydraulics
Smart Tech Electronic Pump
Accumulator
Automatic Swing Brake
Auxiliary Hydraulic Lines
One-Way and Two-Way Auxiliary Flow
Continuous Auxiliary Flow
Auxiliary Line Quick Disconnects
Operator Environment
Canopy (not available in some regions)
Cab (sealed & pressurised)
Cab with Air Conditioning
Cab with Heater
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 (ISO/SAE)
Next Generation LCD Monitor
Advanced Touchscreen Monitor
Adjustable Wrist Rests
Suspension Seat
Courtesy Work Lights
Fluorescent Retractable Seat Belt
Undercarriage & Blade
Rubber Tracks — 350 mm (13.8″) shoe
Steel Tracks
Straight Dozer Blade with Float
Angle Dozer Blade (±25°)
Extra Counterweight
Long Stick (1,695 mm / 66.7″)
Telematics & Connectivity
VisionLink® Fleet Management Ready
Cat Product Link (cellular/satellite)

● Standard  ○ Optional   Standard and optional equipment may vary by region. Consult your Cat dealer for details.

Before You Purchase, Make Sure to Review Our Policies

Seamless Delivery, From Our Warehouse to Your Site

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Multiple Warehouses across the US and Canada

As a global company, we are headquartered near Seattle, Washington with Multiple Warehouses across the US and Canada. Let our logistics team and reliable carriers assist you.

Seattle (Washington)

1001 3rd Ave S, Kent, WA 98032

Phoenix (Arizona)

210 S 57th Dr Phoenix, AZ 85043

Hiram (Georgia)

295 Thompson Rd, Hiram, GA 30141

Lake Elsinore (Southern California)

202 Minthorn St, Lake Elsinore, CA 92530

Lodi (Northern California)

5100 Hwy 12 Lodi, CA 95242

Littleton (Colorado)

5436 S Kelly Ct, Littleton, CO 80125

Mulberry (Florida)

3280 Mulford Rd, Mulberry, FL 33860

Chicago (Illinois)

1775 Baseline Road, Oswego, IL 60543

Detroit (Michigan)

22650 Stevenson St, Clinton Township, MI 48035

Elk River (Minnesota)

16200 US Hwy 10, Elk River, MN 55330

East Cleveland (Ohio)

30701 Euclid Ave, Wickliffe, OH 44092

Cincinnati (Ohio)

500 Kent Road, Batavia, OH 45103

Kansas City (Missouri)

4910 Gardner Ave, Kansas City, MO 64120

Norwalk (Ohio)

501 US Route 20, Norwalk, OH 44857

Bristol (Pennsylvania)

5058 Bristol Pike, Bristol, PA 19007

Nazareth (Pennsylvania)

4242 Lonat Dr, Nazareth, PA 18064

Spartanburg (South Carolina)

218 Wingo Heights Rd Spartanburg, SC 29303

Fort Worth (Texas)

4531 I-35W, Alvarado, TX 76009

Houston (Texas)

19960 TX-242 Conroe, TX 77306

Lindon (Utah)

339 S Geneva Road, Lindon, UT 84043