Photo by MEC AWP
682d2fb98eed2397a6cb78cf Mec 66rj Diesel Telescopic Boom Image Application

MEC’s 66-RJ Diesel Telescopic Boom Delivers 135° of Vertical Articulation

May 21, 2025
The standout feature of the 66-RJ is MEC’s 6 foot(1.9 m) multi-directional jib, delivering 135° of vertical articulation and 120° of horizontal rotation; plus 180° of platform rotation.

MEC announced the first shipments of the 66-RJ diesel telescopic boom, a new addition to the MAX Series of MEC boom lifts. Built for durability from the ground up, the 66-RJ is a contractor-ready machine engineered to perform where versatility and reliability matter most. Purpose-built to support the demanding needs of heavy construction to the precise positioning demands of glaziers and industrial, the 66-RJ combines high performance and high capacity in a rental-tough solution.

The standout feature of the 66-RJ is MEC’s 6 foot(1.9 m) multi-directional jib, delivering 135° of vertical articulation and 120° of horizontal rotation; plus 180° 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. 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.

With a working height of 72 feet (22.2 m), 56 feet (17 m) of horizontal outreach, and a machine weight of 28,528 pounds (12,701 kg), the 66-RJ was designed for productivity and strength. Supporting a dual lift capacity of 900 pounds (408 kg) restricted and 600 pound (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.

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—ideal for navigating congested jobsites. The 4-wheel drive system with locking differential axles, a 7-degree oscillating axle, and foam-filled rough-terrain tires deliver superior traction across uneven terrain and support up to 45% gradeability. Combined with intuitive, industry-aligned control orientation, the 66-RJ gives operators full command of the machine from setup to final placement.

“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.”

With the launch of the 66-RJ, MEC reinforces its commitment to delivering rugged innovation, giving operators performance, control, and reliability. From its multi-directional jib with dual lift capacity to its advanced steering and rough-terrain performance, the 66-RJ provides strong solutions for productivity at heigt. The 66-RJ diesel telescopic boom is shipping now. Visit www.MECawp.com for more information.