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 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 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.