Choose from a range of hydraulic pipework options and you’ll be able to use your excavator with a variety of JCB attachments for ultimate versatility.

The 6-cylinder 7.2-litre JCB DIESELMAX engine fitted to the JS305 tracked excavator produces its peak power (221hp) and torque (960Nm) at a low 1300rpm. This allows fuel efficient matching of the engine and hydraulics.
With a massive 222.6kN of bucket tearout, fast cycle times are assured in all applications. The intuitive multifunction operation makes simultaneous tracking and excavating smooth and fast.
A JCB JS305 is an excavator that provides a solid, stable work platform for fast cycle times.
Strengthening ribs in the idler area provide the force and durability you need to work in the toughest applications.
The control valve optimises hydraulic oil supply to different functions during combined operation. This multifunctioning prowess helps you to achieve fast cycle times.
Simultaneous tracking and excavating is smooth and fast with an intuitive multifunction operation. For maximum power and productivity, choose the Power+ mode from the rotary controller.
Choose from a range of hydraulic pipework options and you’ll be able to use your excavator with a variety of JCB attachments for ultimate versatility.

A JCB JS305 excavator’s reinforced boom and dipper is made of high tensile strength steel, with internal baffle plates for long life durability. In addition, we fit heavy-duty wear strips at the dipper end for increased durability.
JCB’s DIESELMAX engine has a mechanical in-line Bosch fuel injection system. This rugged component can tolerate poor fuel quality. A multi-stage fuel filtration system which protects against a wide range of contaminants as small as two microns.
Our advanced manufacturing and assembly processes produce high precision premium quality assembled components. We then add the best components in the industry, including Berco running gear, Kawasaki pumps and Kayaba main control valves.
The high-strength undercarriage of a JCB JS305 tracked excavator uses a fully welded X-frame construction for long-term durability even in the most demanding applications. The turret is welded to both the upper and lower undercarriage frame.
A closed box section revolving frame increases strength and reduces stress. It’s also highly resistant to impact damage to cope with the kind of harsh life expected of any excavator.
With a heavy duty lower frame and upper structure, as well as a high strength boom and arm, this excavator is designed to excel at tough work like quarry applications.
Grouser plates are a substantial 12mm, offering more protection than the competition.

The new JS305’s JCB DIESELMAX engine has an Eco mode which reduces fuel consumption whilst maintaining substantial productivity levels.
Auto idle reduces engine speed to 1100 rpm after 6 seconds of machine inactivity. The engine speed is restored as soon as you operate your excavator again.
For even more fuel savings, you can use our innovative one-touch idle feature to reduce engine speed at the push of a button.
Specify your JS305 with a HM270T hydraulic breaker, which can be fitted at our production facilities and arrive pre-installed with your new machine.
To make oil flow as precise and efficient as possible, we’ve optimised the hydraulic pump settings and revised the spool configuration within the main valve block. The system now delivers only the flow you need for the job at hand.
Our innovative hydraulic regeneration system recycles oil across the cylinders for faster cycle times and reduced fuel consumption.

A 70/30 front screen split gives the JCB JS305 tracked excavator excellent front visibility. A clear view of the front right track provides easy, safe trench digging and comfortable manoeuvring.
All-round visibility is superb, with a large glass area on the right-hand-side and top corner of the cab. An innovative low-level bonnet allows clear rearward views. To minimise noise and vibration, the cab sits on six viscous rubber mounts.
Your excavator operators are kept abreast of all important information via the 3.5” display. This can be accessed via the new rotary controller.
To minimise noise and vibration, the cab sits on six viscous rubber mounts. Ventilation is plentiful when you open the cab roof hatch and the rear sliding window. There’s also a spacious luggage tray behind the operator’s seat.
A roomy floor area with large high grip rubber-coated pedals and a rubber footrest is a perfect setup for easy and precise tracking. A spacious stowage area behind the seat provides plenty of room for an operators’ personal items.
For the ultimate in precise control, the new JS305 excavator has a rotary throttle controller. There are also three work modes to tailor your machine to any application: Eco, Power and Power+.
JCB’s climate control option offers a precisely controlled cab temperature with fresh or recirculated air.