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Caterpillar 305 CR
Configuration: Minimum configuration: canopy, rubber tracks, standard stick (1351 mm), straight blade, no extra counterweight, no bucket; Tier 4 Final/Stage V.
22 sourced values · Sources: Cat 305 CR Mini Excavator specalog AEHQ8376-04 (10-2025), N Am/Chile/Colombia, U.S. EPA Tier 4 Final/EU Stage V. Retrieved 2026-10-25
Dimension diagram
| A | Overall length | 5,305 mm |
| B | Overall height | 2,550 mm |
| C | Track length on ground | Not published |
| D | Ground clearance | 335 mm |
| E | Overall width | 1,980 mm |
| F | Track gauge / tread | Not published |
| G | Shoe / track width | 400 mm |
Weights
| Spec | Value | Source |
|---|---|---|
| Operating weight | 4,996 kg | Published: 4,996 kg Cat 305 CR Mini Excavator specalog AEHQ8376-04 (10-2025), N Am/Chile/Colombia, U.S. EPA Tier 4 Final/EU Stage V. Retrieved 2026-10-25Minimum operating weight with canopy (11,016 lb). Cab: 5095 kg. Maximum (steel tracks, long stick, extra counterweight) with cab 5754 kg. |
Dimensions
Undercarriage / tires
| Spec | Value | Source |
|---|---|---|
| Undercarriage type | Rubber track | Published: Rubber track Cat 305 CR Mini Excavator specalog AEHQ8376-04 (10-2025), N Am/Chile/Colombia, U.S. EPA Tier 4 Final/EU Stage V. Retrieved 2026-10-25Steel tracks with pads optional (+375 kg). |
| Track rollers / shoes per side | Not published | Cat 305 CR Mini Excavator specalog AEHQ8376-04 (10-2025), N Am/Chile/Colombia, U.S. EPA Tier 4 Final/EU Stage V. Retrieved 2026-10-25 Not published in this document. |
Ground pressure
| Spec | Value | Source |
|---|---|---|
| Ground pressure | 27.3 kPa | Published: 27.3 kPa Cat 305 CR Mini Excavator specalog AEHQ8376-04 (10-2025), N Am/Chile/Colombia, U.S. EPA Tier 4 Final/EU Stage V. Retrieved 2026-10-25At minimum weight (4.0 psi). At maximum weight 32.2 kPa. |
Engine
| Spec | Value | Source |
|---|---|---|
| Engine model | Cat C1.7 Turbo | Published: Cat C1.7 Turbo Cat 305 CR Mini Excavator specalog AEHQ8376-04 (10-2025), N Am/Chile/Colombia, U.S. EPA Tier 4 Final/EU Stage V. Retrieved 2026-10-25U.S. EPA Tier 4 Final/EU Stage V. |
| Net power | 33.6 kW | Published: 33.6 kW Cat 305 CR Mini Excavator specalog AEHQ8376-04 (10-2025), N Am/Chile/Colombia, U.S. EPA Tier 4 Final/EU Stage V. Retrieved 2026-10-25ISO 9249 at 2,400 rpm (45.0 hp). |
| Gross power | 36.1 kW | Published: 36.1 kW Cat 305 CR Mini Excavator specalog AEHQ8376-04 (10-2025), N Am/Chile/Colombia, U.S. EPA Tier 4 Final/EU Stage V. Retrieved 2026-10-25Engine power ISO 14396 (48.4 hp). |
| Displacement | 1.662 L | Published: 1.662 L Cat 305 CR Mini Excavator specalog AEHQ8376-04 (10-2025), N Am/Chile/Colombia, U.S. EPA Tier 4 Final/EU Stage V. Retrieved 2026-10-25101 cu in. |
| Rated speed | 2,400 rpm | Published: 2,400 rpm Cat 305 CR Mini Excavator specalog AEHQ8376-04 (10-2025), N Am/Chile/Colombia, U.S. EPA Tier 4 Final/EU Stage V. Retrieved 2026-10-25 |
Hydraulics
| Spec | Value | Source |
|---|---|---|
| Pump / aux flow | 133 L/min | Published: 133 L/min Cat 305 CR Mini Excavator specalog AEHQ8376-04 (10-2025), N Am/Chile/Colombia, U.S. EPA Tier 4 Final/EU Stage V. Retrieved 2026-10-25Load-sensing variable-displacement piston pump at 2,400 rpm (35 gal/min). |
| System / relief pressure | ≈ 26.5 MPa | Published: 26,500 kPa Cat 305 CR Mini Excavator specalog AEHQ8376-04 (10-2025), N Am/Chile/Colombia, U.S. EPA Tier 4 Final/EU Stage V. Retrieved 2026-10-25Operating pressure – equipment, printed as 265 bar (3,843 psi). Travel 265 bar; swing 200 bar. |
Performance
Similar models
| Brand | Model | Operating weight |
|---|---|---|
| Komatsu | PC45MR-5 | 4,990 kg |
| Hitachi | ZX50U-5N | 5,014 kg |
| Takeuchi | TB250-2 | ≈ 4,976 kg |
| Case | CX50D | ≈ 4,950 kg |
| Volvo | ECR50 | 5,050 kg |
| Kubota | U48-5 | ≈ 4,921 kg |
Compare side by side with Komatsu PC45MR-5 and Hitachi ZX50U-5N