At a glance
Key specifications
Overall dimensions
Measurement basis: Long-stick published configuration, 400 mm tracks, cab and no extra counterweight.
Precision visual reference
Dimensions and working range
Published measurements for the stated configuration. Illustration not to scale.
Overall Size
Measurement basis: Long-stick published configuration, 400 mm tracks, cab and no extra counterweight.
Working Range
Measurement basis: Long-stick published configuration, 400 mm tracks, cab and no extra counterweight.
Reference details
Overall measurement views reviewed 2026-09-06. Illustrative artwork, not a scale drawing.
Current documented generation; confirm serial/PIN · North America
Canonical reference: heavyeq.ca/specs/mini-excavators/caterpillar/306-cr/ · Printed from HeavyEQ.ca. Confirm the actual machine and current manufacturer documentation before transport or operation.
Year, generation & configuration
Model generation and configuration
- Generation / series
- Current 306 CR product page
- Applicable region
- United States / North American reference
- Year handling
- Confirm the serial/PIN and production year when matching an individual machine to this reference.
Model identity
Model family, generation & status
- Model family
- Caterpillar 306 CR
- Generation / record
- Current 306 CR product page
- Product status
- Current manufacturer model — status checked September 2026
- Regional scope
- United States / North American reference
No verified lineage relationship published. HeavyEQ reviewed first-party sources and did not force a predecessor or successor from model numbering.
United States / North American reference
Verified specifications
Values retain their cited source, verification status and original publication basis. Imperial is presented first while manufacturer-published dual units and configuration context remain attached to every value.| Specification | Imperial | Metric | Standard / configuration | Source |
|---|---|---|---|---|
| Net engine power | 55.9 hp | 41.7 kW | Manufacturer net-power ratingManufacturer verified | Caterpillar |
| Operating weight | 15,766 lb | 7,150 kg | Published reference configurationManufacturer verifiedSafety-sensitive value — verify the exact machine. | Caterpillar |
| Overall shipping length | 19 ft 6 in | 5,950 mm | Long-stick published configuration, 400 mm tracks, cab and no extra counterweight.Manufacturer verifiedSafety-sensitive value — verify the exact machine. | Caterpillar |
| Overall track width | 6 ft 6 in | 1,980 mm | Long-stick published configuration, 400 mm tracks, cab and no extra counterweight.Manufacturer verifiedSafety-sensitive value — verify the exact machine. | Caterpillar |
| Cab height | 8 ft 4 in | 2,545 mm | Long-stick published configuration, 400 mm tracks, cab and no extra counterweight.Manufacturer verifiedSafety-sensitive value — verify the exact machine. | Caterpillar |
| Dig depth | 13 ft 6 in | 4,110 mm | Long-stick published configuration, 400 mm tracks, cab and no extra counterweight.Manufacturer verified | Caterpillar |
| Maximum reach — ground level | 21 ft 5 in | 6,535 mm | Long-stick published configuration, 400 mm tracks, cab and no extra counterweight.Manufacturer verified | Caterpillar |
| Maximum dig height | 20 ft 1 in | 6,130 mm | Long-stick published configuration, 400 mm tracks, cab and no extra counterweight.Manufacturer verified | Caterpillar |
| Maximum dump clearance | 15 ft 2 in | 4,610 mm | Long-stick published configuration, 400 mm tracks, cab and no extra counterweight.Manufacturer verified | Caterpillar |
| Tail swing without counterweight | 4 ft 5 in | 1,350 mm | Long-stick published configuration, 400 mm tracks, cab and no extra counterweight.Manufacturer verifiedSafety-sensitive value — verify the exact machine. | Caterpillar |
What the specifications mean
The cited long-stick, cab and track arrangement excludes extra counterweight. Added equipment cannot be ignored when using its transport and lift references.
A compact-radius option for utility and excavation tasks needing the documented long-stick envelope.
Alternatives worth comparing
These are research paths, not interchangeable configurations or a ranked winner.Kubota U55-5 Mini Excavator
The quoted width does not describe attachment sweep, and the weight basis includes an operator. Confirm blade, cab and coupler before a transport comparison.
ExploreTakeuchi TB350R Mini Excavator
Canopy weight and cab transport dimensions describe different facets. Check the installed cab and required hydraulic circuit together with tool protection.
ExploreConfiguration intelligence
Configurations & specification differences
These observations are scoped to the cited generation and region. They are not a list of valid option combinations.
| Record | Verified observation | Scope |
|---|---|---|
| Cab / canopy & counterweight | Minimum and maximum weights change with cab, tracks, counterweight, stick and blade. | Current 306 CR product pageUnited States / North American reference |
| Arm, blade & tracks | Compact-radius geometry does not eliminate rear-clearance checks. | Current 306 CR product pageUnited States / North American reference |
| Coupler & auxiliary hydraulics | Coupler and auxiliary circuits must match the intended tool. | Current 306 CR product pageUnited States / North American reference |
A brochure configuration is not an individual marketplace machine. Serial/PIN and build information are required for exact verification.
Used 306 CR inspection priorities
- Check long-stick pivots, counterweight installation if fitted, blade and track measurements; confirm auxiliary requirements for the intended tool.
- Record the exact serial/PIN, installed options and inspection limitations. These are purchase inspection priorities, not claims of a model-specific failure pattern.
Configuration-aware inspection: these checks are triggered by machine category, installed configuration and technology package. Brochure-listed technology must be physically present, active, licensed and calibrated on the used machine.
Hours, condition and ownership cost
Hours are context, not a condition grade. Duty cycle, idle time, maintenance evidence, wear-system measurements, structural repairs and installed technology should be evaluated together.
Cost drivers to model
- Compare mobilization and tool readiness with a smaller compact excavator, accounting for the actual loaded machine rather than a family minimum weight.
- Use the ownership calculator with quoted repairs, actual scheduled hours, utilization and transport costs; leave unknown assumptions visible.
Compatibility graph
Attachment considerations
Relationships below identify relevant classes only unless a stronger evidence state is shown. They never assert exact used-attachment fitment.
Compact excavator buckets and couplers
Verify pin or coupler geometry, tool weight, machine configuration.
Open attachment researchBreakers, augers and compactors
Verify flow, pressure, return, case drain, controls.
Open attachment researchBefore confirming fitment
- generation and machine configuration
- mounting interface, coupler or pin geometry
- hydraulic flow, pressure, return and case drain
- attachment weight and machine capacity limits
- electrical controls or required machine options
Model-reference transport profile
Transport reference
Reference measurements retain their configuration and verification status. Confirm the actual transport setup before booking.
Reference specifications can differ from the actual configured machine. Confirm dimensions and weight before booking transportation.
Confirm or replace before a transport request
- actual weight
- actual travel length, width and height
- attachments and removable work tools
- bucket, blade, carriage or boom position
- loading condition
Source provenance
First-party sources and verification notes
Only manufacturer-authored records are linked publicly. Provisional measurements remain marked until a matching first-party record is confirmed.306 CR Mini Excavator
United States / North American reference · exact model technical page · accessed September 5, 2026 · status: Manufacturer verified
