JCB unveils largest X Series crawler excavator

JCB has expanded its X Series range of tracked excavators with the unveiling of the largest model yet – the 370X for the 35-40 tonne sector.

The machine is powered by a Cummins L9 diesel engine, certified as EU Stage V and EPA Tier 4 Final-compliant. JCB said the 8.9-litre, six-cylinder engine boasts a 14% power increase over the outgoing JS370, with 240kW (322hp) available at just 1,700rpm. The engine delivers this maximum power within a reduced operating rev range, to increase fuel economy and reduce overall noise levels.

A Kawasaki tandem hydraulic pump operates with an increased 350 bar pressure, rising to 380 bar during power boost cycles. The 370X is said to be capable of moving up to 4.5-tonnes more material per litre of fuel and up to 86 tonnes per hour more than competitors in testing.

A heavier counterweight contributes to added stability, while larger structures cope with the additional forces. Increased service pipework diameters and raised hydraulic pressures result in more power at the dig end, which has been redesigned with cast boom foot and hydraulic ram pivot points for additional strength and longevity.

The 370X is supplied with a 6.45m monoboom, with a choice of 2.63m, 3.23m and 4.03m dippers. Optional heavy-duty dippers have additional crush bars and reinforcement to cope with arduous applications. Bucket pin diameter has been increased and the machine can be fitted with a new JCB dual pin quickhitch, to pick up 90mm or 100mm attachments. There are also new 2.1m3 XHD and 2.43m3 XHD buckets available, plus JCB will offer a new HM330T hydraulic breaker specifically for the 370X.

The 370X comes with the JCB Command Plus ROPS cab, which benefits from a heated air suspension seat and a reduced 69dB in-cab noise level. A new 10” touchscreen monitor with new user interface is included, while the switch panel incorporates more customisable hot keys, allowing further personalisation for the operator. Climate control, a radio with DAB option, keyless start and twin cameras for added visibility are all standard.

The machine benefits from extended service intervals, with hydraulic intervals doubled to 2,000 hours. Engine coolant service in now required at 3,000 hours, while the air filter element intervals are extended up to 2,000 hours. The machine has three work modes, while Auto-stop and Auto-Idle engine functions are standard to reduce fuel consumption during idling0.

Optional extras include auxiliary hydraulic circuits with up to 15 attachment settings and a premium heated and cooled operator’s seat. LED lights are now standard, with options available to increase to up to 14 LED work lights. The machine can also be offered with the JCB 2D and 3D-ready INTELLIGRADE system. A bird’s eye 360° camera system, integrated within the 10” display, can also be offered, along with high visibility, all-round handrails.

Paul Swallow, business head – excavators, said, “With more power, increased strength and durability, reduced fuel consumption and lower ownership costs, the JCB 370X is a major step forward for customers in the 35-40 tonne class. With fantastic operator comfort and control, the 370X delivers a heavy-duty excavator solution for markets around the world.”

The machine will be shown for the first time in Scotland at ScotPlant 2024, held at the Royal Highland Centre, Edinburgh, from April 26-27.