305 CR - Tier 4 / Stage V
305 CR - 2021, Tier 4 Final, N Am
Overview
The Cat® 305 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.
Specifications
Units:
| Net Power | — |
| Operating Weight | — |
| Dig Depth | — |
Benefits & Features
ALL DAY COMFORT
- Choose either a canopy or a sealed and pressurized cab which can be equipped with air conditioning, adjustable wrist rests, and a suspension seat to help keep you working comfortably all day long.
EASY TO OPERATE
- Controls are easy to use and the intuitive Next Generation LCD monitor provides easy to read machine information. An advanced touchscreen monitor can also be equipped as an upgrade option.
STICK STEER TRAVEL MODE
- Moving around the job site is even easier with the Cat Stick Steer option. Easily switch from traditional travel controls with levers and pedals to joystick controls to move the machine and to operate the blade. The benefit of less effort and improved control is in your hands!
October 9, 2024
Specifications
Units:
| Net Power | — |
| Engine Model | C1.7 Turbo |
| Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC | — |
| Note | Advertised power is tested per the specified standard in effect at the time of manufacture. |
| Gross Power - 2,400 rpm - SAE J1995:2014 | — |
| Stroke | — |
| Bore | — |
| Displacement | — |
| Emissions | The Cat® C1.7 engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards. |
| Note (2) | Net power advertised is the power available at the flywheel when the engine is at the rated speed of 2400 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load. |
| Operating Weight | — |
| Minimum Operating Weight with Canopy* | — |
| Note (1) | *Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight. |
| Minimum Operating Weight with Cab* | — |
| Maximum Operating Weight with Cab** | — |
| Maximum Operating Weight with Canopy** | — |
| Note (2) | **Maximum Weight is based on steel tracks with pads, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket. |
| Dig Depth | — |
| Stick Length | — |
| Track Width | — |
| Maximum Blade Depth | — |
| Maximum Dump Clearance | — |
| Boom Swing - Left | — |
| Boom Swing - Right | — |
| Swing Bearing - Height | — |
| Boom Height - Shipping Position | — |
| Boom In Reach | — |
| Maximum Reach | — |
| Track Belt/Shoe Width | — |
| Maximum Reach - Ground Level | — |
| Maximum Blade Height | — |
| O/A Shipping Height | — |
| Tail Swing without Counterweight | — |
| O/A Undercarriage Length | — |
| Tail Swing with Counterweight | — |
| Vertical Wall | — |
| Note | *Overall Shipping Length depends on blade position during shipment. |
| Overall Shipping Length* | — |
| Maximum Dig Height | — |
| Ground Clearance | — |
| Boom Swing - Left | 72 Degrees |
| Machine Swing Speed | — |
| Boom Swing - Right | 50 Degrees |
| Maximum Dig Height | — |
| Maximum Blade Height | — |
| Dig Depth | — |
| Boom Swing - Right | — |
| Maximum Reach - Ground Level | — |
| Tail Swing without Counterweight | — |
| Boom Height - Shipping Position | — |
| Maximum Blade Depth | — |
| Maximum Reach | — |
| Boom Swing - Left | — |
| Overall Shipping Length* | — |
| O/A Undercarriage Length | — |
| Swing Bearing - Height | — |
| Stick Length | — |
| Track Belt/Shoe Width | — |
| Boom In Reach | — |
| Vertical Wall | — |
| Tail Swing with Counterweight | — |
| Maximum Dump Clearance | — |
| O/A Shipping Height | — |
| Note | *Overall Shipping Length depends on blade position during shipment. |
| Ground Clearance | — |
| Hydraulic Tank | — |
| Fuel Tank | — |
| Engine Oil | — |
| Hydraulic System | — |
| Cooling System | — |
| Ground Pressure - Minimum Weight | — |
| Maximum Traction Force - Low Speed | — |
| Ground Pressure - Maximum Weight | — |
| Travel Speed - Low | — |
| Maximum Traction Force - High Speed | — |
| Travel Speed - High | — |
| Gradeability - Maximum | 30 degrees |
| Angle Blade Width | — |
| Straight Blade Height | — |
| Straight Blade Width | — |
| Angle Blade Height | — |
| Angle Blade - Left | 25 degrees |
| Angle Blade - Right | 25 degrees |
| Average Exterior Sound Pressure (ISO 6395:2008) | — |
| Note | *The declared dynamic operator sound pressure levels per ISO 6396:2008. The measurements were conducted with the cab doors and windows closed. **The labeled sound power level for the CE marked configurations when measured according to the test procedure and conditions specified in 2000/14/EC. |
| Operator Sound Pressure (ISO 6396:2008) | — |
| Auxiliary Circuit - Secondary - Pressure | — |
| Pump Flow at 2,400 rpm | — |
| Operating Pressure - Swing | — |
| Operating Pressure - Travel | — |
| Auxiliary Circuit - Secondary - Flow | — |
| Digging Force - Stick - Standard | — |
| Auxiliary Circuit - Primary - Pressure | — |
| Auxiliary Circuit - Primary - Flow | — |
| Digging Force - Bucket | — |
| Operating Pressure - Equipment | — |
| Note | Flow and pressure are not combinable. Under load, as flow rises pressure goes down. |
| Type | Load Sensing Hydraulics with Variable Displacement Piston Pump |
| Digging Force - Stick - Long | — |
| Top Guard | ISO 10262:1998 Level I |
| Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 |
| Tip Over Protective Structure (TOPS) | ISO 12117:1997 |
| Counterweight | — |
| Long Stick | — |
| Steel Tracks with Pads | — |
| Angle Blade | — |
| Recyclability | 96% |
Benefits & Features
ALL DAY COMFORT
- Choose either a canopy or a sealed and pressurized cab which can be equipped with air conditioning, adjustable wrist rests, and a suspension seat to help keep you working comfortably all day long.
EASY TO OPERATE
- Controls are easy to use and the intuitive Next Generation LCD monitor provides easy to read machine information. An advanced touchscreen monitor can also be equipped as an upgrade option.
STICK STEER TRAVEL MODE
- Moving around the job site is even easier with the Cat Stick Steer option. Easily switch from traditional travel controls with levers and pedals to joystick controls to move the machine and to operate the blade. The benefit of less effort and improved control is in your hands!
BIG PERFORMANCE IN A COMPACT DESIGN
- Strong lift and dig performance helps you get the job done faster. The compact radius design lets you access and work in the tightest areas. Dig-to-blade and dozer blade float allows for easy clean up. An angle blade is also an option for finished grading and easier backfilling applications.
SAFETY ON THE JOB SITE
- Your safety is our top priority. The Cat mini excavator is designed to help keep you safe on the job. Courtesy work lights and a fluorescent retractable seat belt with optional seat belt reminder system are just a couple of the safety features we’ve built into the machine.
SIMPLE SERVICE FOR LESS DOWNTIME
- Maintenance is quick and easy on the Cat mini excavator. Routine check points are easy to access at ground level through the side doors.
LOWER OPERATING COSTS
- Equipped with features such as auto idle, auto engine shutdown, and efficient hydraulics with a variable displacement pump, the Cat mini excavator was designed with reducing your operating costs in mind.
UNMATCHED DEALER SUPPORT
- Your Cat dealer is here to help you reach your business goals. From providing equipment solutions to operator training to service needs and beyond, your Cat dealer is ready to help.
Data not available.
Standard Equipment
- ENGINE
- Cat® C1.7 Turbo Engine (U.S. EPA Tier 4 Final)
- Automatic Engine Idle
- Automatic Engine Shutdown
- Automatic Two Speed Travel
- Fuel Water Separator
- Power on Demand (not available in all regions)
- Variable Displacement Piston Pump
- Load Sensing/Flow Sharing Hydraulics
- HYDRAULICS
- Smart Tech Electronic Pump
- Accumulator
- Automatic Swing Brake
- Auxiliary Hydraulic Lines
- One and Two Way Auxiliary Flow
- Continuous Auxiliary Flow
- Auxiliary Line Quick Disconnects
- GUARDING
- ROPS ISO 12117-2:2008
- Top Guard ISO 10262:1998 (Level I)
- OTHER
- Eco Drain
- OPERATOR ENVIRONMENT
- LED Front and Rear Lights
- LED Boom Light
- Canopy or Cab
- 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 (optional in some regions)
- Adjustable Wrist Rests
- Washable Floor Mat
- Travel Pedals and Hand Levers
- Machine Security
- Machine Security – Standard Key with Pass Code
- Fabric Suspension Seat (Cab only)
- Vinyl Suspension Seat (Canopy only)
- Hydraulic Lockout – All Controls
- Retractable High Visibility Seat Belt (75 mm/3 in)
- Coat Hook
- Cup Holder
- Storage Pocket
- Skylight
- Mounting Bosses for Front
- Signaling/Warning Horn
- Interior Light (Cab only)
- Boom Light, Halogen (not available in all regions)
- Utility Space for Mobile Phone
- Next Generation Color LCD Monitor (IP66)<br>– Fuel Level and Coolant Temperature Gauges<br>– Maintenance and Machine Monitoring<br>– Performance and Machine Adjustments<br>– Numeric Security Code<br>– Multiple Languages<br>– Hour Meter with Wake Up Switch<br>– Jog Dial (cab only)
- UNDERCARRIAGE
- Rubber Belt (400 mm/15.7 in)
- Dozer Straight Blade
- Dozer Blade Float
- Tie Downs on Track Frame
- BOOM, STICK AND LINKAGES
- One Piece Boom (2716 mm/106.9 in)
- Standard Stick (1351 mm/53.2 in)
- Front Shovel Capable – Pin-On
- Thumb Ready
- Certified Lifting Eye
- ELECTRICAL
- 12 Volt Battery
- Software (machine and monitor)
- Maintenance Free Battery
- Lock Out/Tag Out Battery Disconnect
- 12 Volt Power Socket
- Travel Alarm (optional in some regions)
Optional Equipment
- UNDERCARRIAGE
- Steel Track (400 mm/15.7 in)
- Steel Track with Rubber Pads
- Angle Blade
- BOOM, STICK AND LINKAGES
- Long Stick (1601 mm/63.0 in)
- Front Shovel Capable – Dual Lock Manual Coupler
- Front Shovel Capable – Hydraulic Coupler
- Attachments including Couplers, Thumbs, Buckets, Augers and Hammers
- 2nd Auxiliary Hydraulic Lines
- Bucket Divert Lines
- Boom Lowering Check Valve
- Stick Lowering Check Valve
- Hydraulic Quick Coupler Lines
- ELECTRICAL
- Product Link™ PL243 (regulations apply)
- Product Link PLE643 (regulations apply)
- OTHER
- Bio Oil Capable
- Water Jacket Heater
- Counterweight (242 kg/534 lb)
- OPERATOR ENVIRONMENT
- Cab with Air Conditioning
- Cab with Heater
- No Travel Pedals and Hand Levers (optional in some regions)
- Machine Security – Push to Start with Key Fob/Pass Code
- Mirrors, Left, Right and Rear
- Camera
- Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)
- Next Generation Advanced Monitor<br>– Touch Screen<br>– Site Reference System<br>– High Definition Camera Capable (IP68 and IP69K)<br>– Numeric Security Code
- Seat Belt Reminder System
- Cat Grade with Advanced 2D
- Cat Grade with 3D
- GUARDING
- Top Guard ISO 10262:1998 (Level II)
- Front Guard (Mesh) ISO 10262:1998 (Level I)
- Front Guard (Heavy Duty) ISO 10262:1998 (Level II)
Related Products
Units:
Cold Planers
High speed drum and conical bits quickly remove asphalt and concrete prior to resurfacing.
| Model | Working Width | ||
|---|---|---|---|
| PC35 | — | — | 1st Auxiliary |
Compaction Wheels
When backfilling trenches, Compaction Wheels are an option to achieve desired compaction levels at a lower price point.
| Model | Compaction Width | ||
|---|---|---|---|
| 305 mm (12 in) 5 Ton, Pin On | — | 2 | 5 Ton Mini Excavators |
| 406 mm (16 in) 5 Ton, Pin On | — | 3 | 5 Ton Mini Excavators |
| 559 mm (22 in) 5 Ton, Pin On | — | 4 | 5 Ton Mini Excavators |
| 305 mm (12 in) 1-8 Ton, Pin Lock | — | 2 | 1-8 Ton Mini Excavators |
| 406 mm (16 in) 1-8 Ton, Pin Lock | — | 3 | 1-8 Ton Mini Excavators |
| 559 mm (22 in) 1-8 Ton, Pin Lock | — | 4 | 1-8 Ton Mini Excavators |
Ditch Cleaning Buckets - Mini Excavator
Used in ditch cleaning, sloping, grading and other finishing work.
| Model | Width | ||
|---|---|---|---|
| 1300 mm (51 in) | — | — | — |
| 1000 mm (39 in) | — | — | — |
| 1300 mm (51 in) | — | — | — |
| 1600 mm (63 in) | — | — | — |
Dual Lock™ Pin Grabber Couplers - Mini Excavator
Increase machine versatility and improve overall production.
| Model | Weight | ||
|---|---|---|---|
| 5 Ton Mini Excavators Manual | — | — | — |
| 5 Ton Mini Excavators Hydraulic | — | — | — |
Equipment Management
Cat® Equipment Management gives you access to the data you need to keep your equipment on the job site and earning money. You can track equipment location and hours, monitor machine use and health, then take informed action that will keep your operation running smoothly, efficiently and profitably.
| Model |
|---|
| VisionLink® |
Flail Mowers
Flail Mowers are ideal for efficient cutting and mulching of vegetation and overgrowth.
| Model | Working Width | ||
|---|---|---|---|
| HMF110 | — | Standard Flow | — |
Grading Buckets - Mini Excavator
For cleaning ditches, sloping, grading and other finishing work.
| Model | Width | ||
|---|---|---|---|
| 1200 mm (47 in) | — | — | — |
| 1500 mm (59 in) | — | — | — |
Hammers
Used for demolition and construction applications.
| Model | Operating Weight - With Tool | ||
|---|---|---|---|
| B6 Side Mount | — | — | 5-6 Ton Mini Excavators |
| H55s | — | — | 3-6 Ton Mini Excavators, 216-299 Skid Steer/Compact Track Loaders |
| H65s | — | — | 5-9 Ton Mini Excavators, 216-299 Skid Steer/Compact Track Loaders, 415-444 Backhoe Loaders |
| B4 | — | — | 2-5 Ton Mini Excavators, 216-299 Skid Steer/Compact Track Loaders |
| B6 | — | — | 4-9 Ton Mini Excavators, 216-299 Skid Steer/Compact Track Loaders, 415-444 Backhoe Loaders |
Heavy Duty Buckets - Mini Excavator
High strength buckets designed for maximum performance and value over a broad range of applications.
| Model | Width | ||
|---|---|---|---|
| 406 mm (16 in) | — | — | — |
| 305 mm (12 in) | — | — | — |
| 457 mm (18 in) | — | — | — |
| 508 mm (20 in) | — | — | — |
| 619 mm (24 in) | — | — | — |
| 762 mm (30 in) | — | — | — |
| 914 mm (36 in) | — | — | — |
Heavy Duty Capacity Buckets - Mini Excavator
Optimized geometry provides maximum digging force and material volume for heavy-duty applications.
| Model | Width | ||
|---|---|---|---|
| 406 mm (16 in) | — | — | — |
| 305 mm (12 in) | — | — | — |
| 508 mm (20 in) | — | — | — |
| 762 mm (30 in) | — | — | — |
| 619 mm (24 in) | — | — | — |
| 914 mm (36 in) | — | — | — |
| 457 mm (18 in) | — | — | — |
Mobile Scrap & Demolition Shears
Cat® Scrap and Demolition Shears are industry leaders in steel processing. Power and performance in a reliable package, backed by the best dealer network in the world.
| Model | Tip Force | ||
|---|---|---|---|
| S308 | — | 360 Degrees | — |
Nordic Digging Buckets
Used for utility, trenching, general excavation, and backfilling in all kinds of different soil types, up to heavy duty applications.
| Model | Width | ||
|---|---|---|---|
| 620 mm (24 in) | — | — | — |
Nordic Trenching Buckets
Ideal for trenching applications, but suitable for general excavation and backfilling in all kinds of soil types up to heavy duty applications.
| Model | Width | ||
|---|---|---|---|
| 320 mm (12 in) | — | — | — |
Pallet Fork Carriages
For moving palletized loads on construction sites, handling bagged fertilizer and seed at landscaping and nursery sites.
| Model | Height | ||
|---|---|---|---|
| 1300 mm (51 in) | — | — | — |
Pin Puller Couplers
Increase machine versatility, reduce costs, and improve overall production with Cat® Pin Puller Couplers for Mini Excavators.
| Model | Weight | ||
|---|---|---|---|
| 5-6 Ton Mini Excavators | — | — | — |
| 5-6 Ton Mini Excavators | — | — | — |
Rippers
For land clearing or site preparation in rock, quarry work and similar high-impact digging applications. Combine with a coupler for Rip & Load productivity.
| Model | Shank Length | ||
|---|---|---|---|
| 676 mm (27 in) | — | — | — |
S Type Couplers
The S Type Coupler is a pin grabber style dedicated coupler. It ensures an exchangeability of tools within a fleet of machines with different platforms. Consistent tight fit to attachment, low offset, and reliability are the key features.
| Model | Weight | ||
|---|---|---|---|
| S-40 Pin Grabber 5-6 Ton Mini Excavators | — | — | — |
| S-40 Pin Grabber LCS 5-6 Ton Mini Excavators | — | — | — |
Tilting Dual Lock™ Pin Grabber Couplers - Mini Excavator
Provides increased productivity and cost saving benefits to customers. Operators have the ability to tilt compatible work tools for more efficient jobsite versatility and productivity.
| Model | Weight | ||
|---|---|---|---|
| 5 Ton Mini Excavators Tilting Dual Lock Pin Grabber | — | — | — |
Utility Thumbs
Utility Thumbs offer hydraulic functionality, with maximum interchangeability.
| Model | Length | ||
|---|---|---|---|
| 356 mm (14 in) 8 Teeth/2 Tines | — | — | — |
Vibratory Plate Compactors
Vibratory action and dynamic force provides excellent compaction in a compact size.
| Model | Impulse Force | ||
|---|---|---|---|
| CVP28 | — | 2200 bpm | — |