The upgraded 303.5 CR delivers power and performance in a wide range of applications. Faster transient speeds, coupled with exclusive features like stick steer joystick travel get you moving quickly and comfortably so you can focus on the task at hand.
Net Power
17.6KW
Operating Weight
4190KG
Dig Depth
3110MM
Overview
The Cat® 303.5 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.
303.5 CR Small Product Brochure (Global except China and Japan)Cat Mini Hydraulic Excavators Product Line Brochure (North America)Cat Mini Hydraulic Excavators Product Line Brochure (Europe)Options And Accessories Kit Guide for Mini Hydraulic ExcavatorsCat Attachments for Mini Excavators BrochureAttachment Compatibility Guide for Mini Excavators
Specifications
Engine
- Net Power17.6kW
- Bore84mm
- Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/126917.6kW
- Displacement1.7l
- Gross Power - 2,400 rpm - SAE J199518.4kW
- Stroke100mm
Attachments
COMPATIBLE WITH
320 mm (12 in)
Nordic Trenching Buckets for Cat® Mini Excavators are ideal for trenching applications, but can be used for general excavation and backfilling in a variety of soil types. Durable side wear plates provide optimal wear resistance in heavy duty applications. Due to the longer bucket floor length, shorter tip radius and flat torque tube construction they are an ideal match when combined with an S Type Coupler or Tilt Rotate System.
1100 mm (43 in)
Nordic Grading Buckets for Cat® Mini Excavators are ideal for grading applications, but also suitable for general excavation, loading, and backfilling in all kinds of different soil types. The design features durable wear plates for longer wear resistance in heavy duty applications. Due to the rounded side shape, shorter tip radius, and flat torque tube construction they are optimal for using in combination with a Tilt Rotate System.
305 mm (12 in), Pin On, 3-4 Ton Mini Excavators
Cat® Compaction Wheels for Backhoe Loaders and Mini Excavators provide a low cost option for trench compaction. The wheels feature tapered roller bearings and tampered foot design with static pad rollers, to allow for smooth operation and achieving a high level of compaction. Six to ten passes are usually adequate to achieve compaction in normal soil conditions, dependent on the required compaction levels.
406 mm (16 in), Pin On, 3-4 Ton Mini Excavators
Cat® Compaction Wheels for Backhoe Loaders and Mini Excavators provide a low cost option for trench compaction. The wheels feature tapered roller bearings and tampered foot design with static pad rollers, to allow for smooth operation and achieving a high level of compaction. Six to ten passes are usually adequate to achieve compaction in normal soil conditions, dependent on the required compaction levels.
559 mm (22 in), Pin On, 3-4 Ton Mini Excavators
Cat® Compaction Wheels for Backhoe Loaders and Mini Excavators provide a low cost option for trench compaction. The wheels feature tapered roller bearings and tampered foot design with static pad rollers, to allow for smooth operation and achieving a high level of compaction. Six to ten passes are usually adequate to achieve compaction in normal soil conditions, dependent on the required compaction levels.
305 mm (12 in)
Heavy Duty Buckets for Cat® Mini Excavators are designed for maximum performance and value over a broad range of applications in abrasive applications such as mixed dirt, clay, and rock.
406 mm (16 in), 71 L (2.5 ft3), Pin On, 40 mm (1.6 in)
Heavy Duty Buckets for Cat® Mini Excavators are designed for maximum performance and value over a broad range of applications in abrasive applications such as mixed dirt, clay, and rock.
508 mm (20 in), 93 L (3.3 ft3), Pin On, 40 mm (1.6 in)
Heavy Duty Buckets for Cat® Mini Excavators are designed for maximum performance and value over a broad range of applications in abrasive applications such as mixed dirt, clay, and rock.
619 mm (24 in), 119 L (4.2 ft3), Pin On, 40 mm (1.6 in)
Heavy Duty Buckets for Cat® Mini Excavators are designed for maximum performance and value over a broad range of applications in abrasive applications such as mixed dirt, clay, and rock.
914 mm (36 in), 200 L (7.1 ft3), Pin On, 40 mm (1.6 in)
Heavy Duty Buckets for Cat® Mini Excavators are designed for maximum performance and value over a broad range of applications in abrasive applications such as mixed dirt, clay, and rock.
A23, 3 Ton Mini Excavators
Cat® Augers are used for drilling holes for footings, fencing, signs, trees and shrubs in construction, agricultural, and landscaping applications. They are designed with the right amount of speed and torque for maximum productivity in a broad range of soil types.
A41, 3 Ton Mini Excavators
Cat® Augers are used for drilling holes for footings, fencing, signs, trees and shrubs in construction, agricultural, and landscaping applications. They are designed with the right amount of speed and torque for maximum productivity in a broad range of soil types.
1000 mm (40 in), 136 L (4.8 ft3), Pin On
Ditch Cleaning Buckets for Cat® Mini Excavators are ideal for cleaning wide trenches, loading materials, slope cutting, grading and finishing work in construction, landscaping and road maintenance applications.
1400 mm (55 in), 197 L (7 ft3), Pin On
Ditch Cleaning Buckets for Cat® Mini Excavators are ideal for cleaning wide trenches, loading materials, slope cutting, grading and finishing work in construction, landscaping and road maintenance applications.
1200 mm (47 in)
Ditch Cleaning Buckets for Cat® Mini Excavators are ideal for cleaning wide trenches, loading materials, slope cutting, grading and finishing work in construction, landscaping and road maintenance applications.
326 mm (13 in) 8 Teeth/2 Tines
Cat® Utility Thumbs offer a cost-effective thumb design with hydraulic thumb control, combined with wide compatibility with machines, buckets and couplers.
3-4 Ton Mini Excavators Manual
Cat® Dual Lock Pin Grabber Couplers allow work tools to be changed quickly - improving overall production and increasing machine versatility.
3-4 Ton Mini Excavators Hydraulic
Cat® Dual Lock™ Pin Grabber Couplers allow work tools to be changed quickly - improving overall production and increasing machine versatility.
TRS4
Cat® Tiltrotators for excavators provide 360-degree rotation and 40-degree tilting action side-to-side, allowing the machine to reach more work areas from a single position. The tiltrotator enables the operator to maneuver around posts, rocks, and other obstacles, as well as to reach along ditch edges more easily.
TRS4, Pin On (Pin Grabber) / S40, 3-4 Ton Mini Excavators
Cat® Tiltrotators for excavators provide 360-degree rotation and 40-degree tilting action side-to-side, allowing the machine to reach more work areas from a single position. The tiltrotator enables the operator to maneuver around posts, rocks, and other obstacles, as well as to reach along ditch edges more easily.
TRS4, Pin On (Pin Grabber) / Pin Grabber, 3-4 Ton Mini Excavators
Cat® Tiltrotators for excavators provide 360-degree rotation and 40-degree tilting action side-to-side, allowing the machine to reach more work areas from a single position. The tiltrotator enables the operator to maneuver around posts, rocks, and other obstacles, as well as to reach along ditch edges more easily.
S40 Pin Grabber 3 Ton Mini Excavators
Cat® S Type Couplers for Mini Excavators are an optimal design for a dedicated quick coupler solution. Low offset, pin grabber ability, and a wedge type locking system ensures a tight fit, no attachment play during use. It also creates the solution to exchange work tools among different platforms and brands. In combination with the Tilt Rotate System that can be equipped with an S Type Coupler and the variety of different buckets offered, it provides a complete attachment solution for Mini Excavators. The coupler is designed with the highest safety standards and comes with a visible locking mechanism.
S40 Pin Grabber LCS 3 Ton Mini Excavators
Cat® S Type Couplers for Mini Excavators are an optimal design for a dedicated quick coupler solution. Low offset, pin grabber ability, and a wedge type locking system ensures a tight fit, no attachment play during use. It also creates the solution to exchange work tools among different platforms and brands. In combination with the Tilt Rotate System that can be equipped with an S Type Coupler and the variety of different buckets offered, it provides a complete attachment solution for Mini Excavators. The coupler is designed with the highest safety standards and comes with a visible locking mechanism.
490 mm (19 in), 3-4 Ton Mini Excavators
Cat® Excavator Rippers offer a cost-effective alternative to blasting. In quarry production work, they offer a lower cost per ton, better product quality and less environmental impact than explosive excavation. They are the ideal tool for land clearing or site preparation in rock, quarry work and similar high-impact digging applications. Take productivity to the next level with a Cat Rip & Load package. A quick coupler switches you rapidly between the ripper, and an Extreme Duty Rock bucket. Pull the rock from the ground and load it with the same machine.
CVP28
Cat® Vibratory Plate Compactors are used for compacting soil, sand or gravel prior to pouring concrete or laying asphalt surfaces. They are also ideal for asphalt patch work. Their capabilities and lower investment and maintenance costs make them popular with pavers, general contractors and utility contractors in residential, commercial or industrial applications.
CVP16
Cat® Vibratory Plate Compactors are used for compacting soil, sand or gravel prior to pouring concrete or laying asphalt surfaces. They are also ideal for asphalt patch work. Their capabilities and lower investment and maintenance costs make them popular with pavers, general contractors and utility contractors in residential, commercial or industrial applications.
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