MEC makes first shipments of new boom

MEC has made the first shipments of its 66-RJ diesel telescopic boom, an addition to the company’s MAX series of booms.

MEC’s 66-RJ. (Photo: MEC)

One of the main features of the 66-RJ is its 6-foot (1.9m) multi-directional jib, delivering 135 degrees of vertical articulation and 120 degrees of horizontal rotation, plus 180 degrees of platform rotation.

“This advanced range of motion coupled with extra capacity sets a new standard in versatility by allowing operators to navigate around structural steel, framing, and other obstacles with precision—especially in complex or hard-to-reach areas,” MEC said. “The ability to precisely position the platform with minimal chassis movement significantly reduces the need for frequent repositioning—maximizing uptime, improving productivity and minimizing jobsite disruption.”

The 66-RJ has a working height of 72 feet (22.2 m), horizontal outreach of 56 feet (17 m) and total machine weight of 28,528 pounds (12,701 kg).

Supporting a dual lift capacity of 900 pounds (408 kg) restricted and 600 pounds (272 kg) unrestricted, the 66-RJ accommodates tools, materials and multiple operators across a wide working envelope. The integrated multi-directional jib maintains strength and stability even at full reach, allowing operators to work efficiently without sacrificing performance.

MEC’s 66-RJ. (Photo: MEC)

The 66-RJ is engineered for maneuverability and traction. It features 2-wheel steer, 4-wheel “round” steer and “crab” steering for side-angle movement, tight turning, and accurate machine positioning. The 4-wheel drive system features locking differential axles, a 7-degree oscillating axle and foam-filled rough-terrain tires that support up to 45% gradeability.

“The 66-RJ further demonstrates MEC’s commitment to innovation and practical design,” said Brian MacFarland, Executive Vice President of MEC. “It expands our boom offering with a full-featured solution-ready for the most demanding construction and industrial jobsites.”