JCB 4CX Eco axles and transmission are designed to withstand a 12,000-hour design life; heavyweight axles are built to withstand serious shock loads. The rear axle alone has a static load rating of 25,000 kg, and a dynamic load rating of 12,500 kg.
We use stress-relieved fabrication for the 4CX’s boom – by heating materials to over 650˚C for over 16 hours, we make sure the metal is evenly heated, doubling boom life.
The 4CX Eco’s pre-production testing regime included 100,000 loading cycles, 500,000 excavating cycles, 360,000 gearchange cycles, extensive bump track testing to ensure structural integrity, and thousands of hours of endurance testing.
We also carried out extensive EMC (Electromagnetic Compatibility) testing on the 4CX; this ensures that signals from mobile phones and radios don’t affect the machine in any way.
Every new JCB 4CX is put through around 600 performance checks on the production line.
Our construction materials are tested to the limit by exposing them to extreme temperatures, chemicals, salt, oil and light. That way, we know they’ll survive the most hostile conditions.
For rigidity and hose protection, there are flat plate D-pressing loader arms on the JCB 4CX.
The robot welded single-piece chassis on the 4CX maximises strength and minimises weight.
Hydraulic hoses are approved to work down to -40°C and all JCB 4CX materials are tested to extreme temperatures and exposed to chemical, salt, oil and sunlight to ensure maximum protection.