Self-leveling boom lift

The 670SJ is engineered to automatically adapt to terrain on slopes up to 10 degrees in any direction, while driving with full functionality at a class-leading 67-ft. platform height. The technology is designed to adjust the boom lift’s chassis to the ground conditions, rather than having to adjust the ground conditions to the machine. This allows the 670SJ to navigate uneven terrain while driving at height from one task to the next without lowering the boom, leading to significant productivity gains throughout the workday.

The machine offers a 73-ft. work height and 57-ft. horizontal reach, with 550-lb. unrestricted and 750-lb. restricted capacities. It also features an automatic, single sensor load sensing system with zero-load calibration, keeping the 670SJ within the allowable work envelope by limiting range depending on the platform load.

“On the underside of the machine, you can see that it has four independent axles, each controlled by its own smart hydraulic cylinders,” says JLG Vice President of Engineering Shashank Bhatia. “These enable each wheel to separately follow the contour of the terrain and stay in constant contact with the ground. This not only allows the machine to continuously and seamlessly self-level, but it does so without requiring operator inputs.”

The 670SJ’s advanced control system affords three operating modes to maximize transportability on site or on the road. Self-leveling mode enables the machine to work at full height, with full functionality, on slopes up to 10 degrees. Travel mode can be used when the boom is stowed to move across the job site at a faster rate of speed. Shipping mode allows the entire machine to be lowered once in position on a truck, reducing its travel height. The control system continuously receives performance data from various sensors, then conveys the information through a digital display and selectable screen interface in the platform during operation, ensuring users are more knowledgeable about what’s going on at ground level while working at height.The self-leveling technology offers a host of benefits for machine operators and their support crews, including reducing the prep work required to level the work area. That means no more pre-grading the site or constructing laborious cribbing before getting to work. It also eliminates the effort of repositioning a boom lift to find a level work area. This helps operators get into position and up to the work area quicker, maximizes reach capabilities and reduces the need for larger, higher reaching lifts onsite as a backup for added reach when uneven ground conditions exist. — JLG Industries Inc., McConnellsburg, Pa.,