TOWER CRANES Ӏ SECTOR REPORT
j with the new Potain Connect
telematics system which enables remote access to crane data.
NEW GENERATION The luffing jib tower crane Manitowoc launched at Bauma was the MR 229 which the company describes as the first of a new generation of Potain luffers. The MR 229 is the first
Potain luffing jib crane to feature Manitowoc’s CCS.
This addition means the crane operator can now activate Potain Plus – designed to maximise load curves and optimise lift speeds – from the Ultra View cab via joystick control. It is also Potain’s first luffer to come with the Potain Connect telematics system. For operations requiring close
control a speed limiter gives increased precision by recalibrating controls so bigger joystick movements deliver restricted responses from the mechanisms. The speed limiter can be adjusted in increments of 25%. Operators can also customise the controls to their own liking, setting pre-defined speeds and dynamism of movements to suit their preferences. The MR 229 has reduced windvane spans for easier
Potain’s MR 229
Potain’s 6t capacity MDT 159
installation on constrained jobsites and a small out-of-service radius between 10 and 12 metres. The crane has a new luffing mechanism design for improved assembly plus an integrated basket at the jib end, for more secure installation, inspection, and maintenance. Once assembled, maximum
capacity for the new crane is 14 tonnes and it can be fitted with up to 55 metres of jib. At its 55 metre jib end lifting
capacity is 2.7 tonnes. Lifting power comes from a choice of hoists, including the 110 HPL 35 from the High-Performance Lifting range, capable of reaching speeds of up to 207 metres/minute.
DOUBLE LAUNCH Chinese manufacturer Zoomlion used Bauma 2022 to debut its R-generation of flat top tower cranes, specifically with the R90 and R220 models, which it says have been tailored for the European market. The larger of the two, the
R220-10S, was one of Zoomlion’s flagship products on the stand. It can lift up to 10 tonnes at a radius of 65 metres, while the R90 lifts up to five tonnes a radius of up to 50 metres.
26 CRANES TODAY
The R220-10S has a choice of 15 arm length options and includes one-button super-lifting, on-load speed, zero-speed hovering and one-button debugging functions as standard features.
The crane has been designed
for ease of transport with the integration of rotary mechanisms and the use of narrow boom structure technology. Zoomlion says the crane has a standard service life of 30 years. The R90-5RE has a round tenon
tower body which offers lower wind resistance and easier assembly and disassembly, says Zoomlion, and it is well-suited to work on small housing construction projects. The company says the new line has been jointly researched, developed and manufactured by its Chinese and German teams and offers high quality backed by a network of authorised repair shops throughout Europe. From the abundance of new
tower cranes and related products presented in this article it is evident that a lot of product development work was carried out over lockdown. With the next big trade show, ConExpo 2023, just round the corner it will be interesting to see if this momentum continues, especially at a stateside show.
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