Maeda MK3053CB

The Maeda MK3053CB is a cutting-edge fully electric spider crane designed for high-performance lifting in confined and sensitive environments such as indoor installations, industrial sites, and urban construction zones. This model is part of Maeda’s knuckle boom series and stands out with its eco-friendly design, advanced remote control interface, and superior reach and lifting geometry.

At the heart of its lifting mechanism is a 5-section fully automatic pentagonal telescopic main boom extending from 3.1 to 10.3 meters, paired with a 3-stage telescopic knuckle boom jib capable of negative angle operation. This allows the MK3053CB to achieve a maximum lifting height of 16.95 meters and a maximum working radius of 14.3 meters. The crane has a maximum lifting capacity of 2.98 tons at 1.8 meters, and 1.0 ton at 5.2 meters with the jib.

The crane measures 3195 mm x 780 mm x 1945 mm, and with a main unit weight of 2880 kg, it is compact enough to pass through standard doorways while offering exceptional lifting performance. Its automatic and stepless multi-position outriggers extend to a maximum footprint of 4460 mm x 4560 mm (front) x 4500 mm (rear), ensuring stability on uneven ground or limited access sites.

Powering the MK3053CB is a Toshiba lithium-ion Titanate battery rated at DC55V – 135Ah, offering continuous operation through onboard charging. With AC200V input, it charges to 80% in 2 hours 20 minutes, or fully in 3.5 hours. The system also supports AC100V input, albeit with longer charge times. Its electric motor delivers 7.5 kW at 2500 rpm, providing strong performance with zero on-site emissions.

The travel system uses hydraulic motor-driven crawlers with variable gauge: 950 mm (standard) or 1050 mm (wide), giving it ground pressure of only 0.85 kgf/cm². It can travel at speeds up to 2.4 km/h and handles gradients up to 24.7°. The crane slews 360° at a speed of 1.4 rpm and the boom can elevate from 0° to 85° in 26 seconds. The main hoist offers a hook speed of 39.8 m/min on single fall.

Standard features include a fully proportional wireless radio remote control, 7-inch operator display, programmable moment limiter, tilt alarm, data logger, and overwind protection. It is equipped with white rubber tracks as standard, while black rubber tracks and an additional battery pack are available as options. Also standard are a 4-fall hook block, single fall hook, winch, and a 2-way jib head adapter.

Overall, the Maeda MK3053CB is a state-of-the-art electric spider crane combining compact form, strong lifting capacity, and eco-conscious design, making it ideal for modern construction and facility maintenance where space and emissions are limited.