Cat

Cat 306 Mini excavators

100K+ machines in details.

Cat 306 Mini excavators tech specs

Video[1]

Interior [2]

Exterior [4]

Attachments [1]

2020-2025

18.12 kw Gross power

1,790 kg Operating weight

2,300 mm Max digging depth

2,880 mm Max dump height

3,620 mm Max digging reach

0.04 cu m Bucket capacity

The Cat 306 CR crams Tier 4 Final power into a narrow 7.15 t (15,766 lb) body. With zero-tail swing and upgraded hydraulics, it delivers nimble performance and lower operating cost.

Zero-tail swing, ~1.5 m transport width for tight zones

41.7 kW (55.9 hp) Cat C2.4 Turbo engine, Tier 4 Final clean power

Ground-level service points and auto-idle cut maintenance

Stick-steer travel mode and optional Indicate/E‑Fence assist tech

Show features

Makana rating

Owner rating

| 1

Market average

AED 450,000

Starting from

AED 280,000

Cat 306 Technical specifications

General

Engine model

Cat C1.8

Operating weight

1,790 kg

Max digging depth

2300 mm

Max dump height

2880 mm

Max digging reach

3620 mm

Boom length

2.3 m

Bucket width

400 mm

Bucket capacity

0.04 cu m

Max speed forward

3.2 kph

Engine

Gross power

18.12 kw

Displacement

1800 cu cm

Service refill capacities

Fuel cap

28 liter

Hydraulic fluid cap

36 liter

Operational specifications

Arm crowding force

9.8 kN

Attachments

Bucket digging force

12.7 kN

Undercarriage

Drawbar Pull

14.2 kN

Track width

10 cm

Track length

1.4 m

Hydraulic system

Pump flow cap

31.5 lpm

Relief valve pressure

219.94 bar

Download datasheets

OEM product brochure

Cat 306 expert review

Reviewed by Zafer R. on September 3, 2025

Overview

The Cat 306 CR is a compact-radius mini excavator weighing ~7.15 t (15,766 lb), with a 41.7 kW (55.9 hp) C2.4 Turbo engine. Max digging depth around 4.11 m (13.5 ft); transport width ~1.5 m (4.9 ft). Equipped with load-sensing hydraulics for efficient use.

Pros Zero-tail swing and narrow chassis (~1.5 m) work where space is tight.
Tier 4 features with ground-level service reduce downtime.

Cons Weight (~7.15 t) needs solid surface and thought-out transport.
Modest power isn’t built for hard digging or heavy tools.

Performance & Efficiency

Load-sensing hydraulics plus auto-idle/auto-shutdown boost fuel savings. Stick-steer travel provides precise control in tight spots.

In Comparison

Compared to smaller models like 305 CR, it brings more power and reach without much extra width. Lighter and simpler transport than bigger mid-size units.

Verdict

Smart choice for compact, efficient digging and maneuvering. Skip it if you expect long runtimes in rocky ground or full-scale demolition.

Cat 306 owner rating

Cat 306 Mini excavators [2020-2025]

2020-2025

Overall rating

Based on 0 ratings

4.0

5 stars

0 %

4 stars

100 %

3 stars

0 %

2 stars

0 %

1 stars

0 %

Cat 306 similar models

Highlight differences

Cat 306 CR

306 CR

Cat 303E

303E

Cat 308E2 CR

308E2 CR

General

Engine model

Engine model Cat C1.8

Engine model C1.3-EF04

Engine model Cat C3.3B

Operating weight

Operating weight 1,790 kg

Operating weight 3,310 kg

Operating weight 8,400 kg

Max digging depth

Max digging depth 2,300 mm

Max digging depth 3,010 mm

Max digging depth 4,190 mm

Max dump height

Max dump height 2,880 mm

Max dump height 3.16 m

Max dump height 5,380 mm

Max digging reach

Max digging reach 3,620 mm

Max digging reach 5,270 mm

Max digging reach 7,250 mm

Boom length

Boom length 2.3 m

Boom length 2.2 m

Boom length 4.4 m

Bucket width

Bucket width 400 mm

Bucket width 610 mm

Bucket width 700 mm

Bucket capacity

Bucket capacity 0.04 cu m

Bucket capacity 0.13 m3

Bucket capacity 0.84 cu m

Max speed forward

Max speed forward 3.2 kph

Max speed forward 4.83 kph

Max speed forward 5.63 kph

Years

Years 2020-2025

Years 2017-2025

Market Average

Market Average AED 450,000

Market Average AED 129,000

Market Average AED 346,000

Price

Price AED 280,000

Price AED 105,000

Price AED 310,000

Engine

Gross power

Gross power 18.12 kw

Gross power 17.6 kw

Gross power 49.66 kw

Displacement

Displacement 1,800 cu cm

Displacement 1,319 cm3

Displacement 3,329.86 cu cm

Bore

Bore -

Bore 7.87 cm

Bore 9.4 cm

Stroke

Stroke -

Stroke 9.4 cm

Stroke 11.94 cm

Service refill capacities

Fuel cap

Fuel cap 28 liter

Fuel cap 45 liter

Fuel cap 140 liter

Hydraulic fluid cap

Hydraulic fluid cap 36 liter

Hydraulic fluid cap 68.89 liter

Hydraulic fluid cap 82.13 liter

Cooling fluid cap

Cooling fluid cap -

Cooling fluid cap 3.79 liters

Cooling fluid cap 14 liter

Operational specifications

Arm crowding force

Arm crowding force 9.8 kN

Arm crowding force 16.99 kN

Arm crowding force 38 kN

Blade width

Blade width -

Blade width 1 m

Blade width -

Swing speed

Swing speed -

Swing speed 9.8 rpm

Attachments

Bucket digging force

Bucket digging force 12.7 kN

Bucket digging force 26.67 kN

Bucket digging force 51 kN

Undercarriage

Drawbar Pull

Drawbar Pull 14.2 kN

Drawbar Pull -

Drawbar Pull 62 kN

Track width

Track width 10 cm

Track width 300 mm

Track width 4.5 cm

Track length

Track length 1.4 m

Track length -

Track length 2.85 m

Track gauge

Track gauge -

Track gauge 1.25 m

Track gauge 2.01 m

Hydraulic system

Pump flow cap

Pump flow cap 31.5 lpm

Pump flow cap 49.77 lpm

Pump flow cap 160 lpm

Relief valve pressure

Relief valve pressure 219.94 bar

Relief valve pressure -

Relief valve pressure 241.31 bar

Refill capacities

Engine oil cap

Engine oil cap -

Engine oil cap 5.68 liter

Engine oil cap 11.36 liter

Dimensions

Height - top of cab

Height - top of cab -

Height - top of cab 2.5 m

Height - top of cab 2.68 m

Blade height

Blade height -

Blade height 40.64 cm

Blade height -

Ground clearance

Ground clearance -

Ground clearance 0.33 m

Ground clearance -

Width over tracks

Width over tracks -

Width over tracks 1.55 m

Width over tracks -

Turning radius

Turning radius -

Turning radius 0.91 m

Turning radius -

Overall Length

Overall Length -

Overall Length 4.69 m

Overall Length -

Cat 306 gallery

Generation-Cat 306 Mini excavators-interior

Generation-Cat 306 Mini excavators-exterior

Generation-Cat 306 Mini excavators-attachments

Generation-Cat 306 Mini excavators-video

Mini excavators. For sale.

Sold

MNX-003

Fuel friendly

Cat 305.5E2 mini excavator

2021

5,850 hrs

5,400 kg

Notify me when available

CE Certified

Customs paid

MNX-002

Cat 303E mini excavator

CE Certified

Customs paid

MNX-004

Great deal

Cat 303E mini excavator

CE Certified

Customs paid

MNX-001

Low hours

Cat 303E mini excavator

Similar machines. Other reviews.

307.5

2018-2021

Cat 307 Mini excavators specs

Cat 303 Mini excavators specs

Cat 306 Mini excavators specs

Cat 308 Mini excavators specs

/ Makana rating

Reviewed by Adrien E.

Cat 966 Wheel loaders specs Cat 980 Wheel loaders specs Cat 226 Skid steer loaders specs Cat 305 Mini excavators specs Cat 323 Medium excavators specs Cat 426 Backhoe loaders specs Cat 428 Backhoe loaders specs Cat 239 Compact track loaders specs Cat 247 Compact track loaders specs Cat 249 Compact track loaders specs

Get the latest from Makana

Subscribe to receive auction dates, exclusive deals, and news in your inbox.

Enter your email

We care about the protection of your data. Read ourPrivacy Policy