Terex Peiner has added the CTT range of Comedil topless tower cranes to its own product range. The move is the first sign of rationalised product development since the two companies came under Terex ownership in November 1998.
The Peiner CTT models use Peiner winches, electrics and tower sections, but Comedil uppers and cabs. They use TS 212 tower sections that Peiner has manufactured for more than 20 years and Peiner’s Giant Bolt connections.
The monobloc 5.9m tower sections allow a maximum free-standing height of 80m. The crane upper is designed and manufactured by Comedil, which launched its flat-top range at Bauma ’98.
The crane is based on the German DIN standard and has been certified by the TÜV. The hoist winch has a stepless 45kW
frequency driven motor which Peiner developed for its other cranes.
First unit on site is a CTT 331 which is being rented for nine months by construction contractor Züblin which is building a new head office for a German bank in Delitzsch, near Leipzig.
The Peiner CTT range consists of three models:
the CTT 331 – maximum rated-capacity 12t or 16t
the CTT 561 – maximum rated capacity 32t and with 85m jib
the CTT 431 – to be launched later in the year.
The CTT 331 at Delitzsch is a 6t/12t version with a full 75m jib and a height under hook of 32.7m. It can lift 6t at 41.2m or 2.9t on the end of the jib at 75m.
Peiner says that the advantages of the flat-top towers is that erection is quick and safe, because only horizontal loads are needed, there is no need to fix the tie-bars, and the boom of the mobile crane used for erection can be 10m shorter than if the tower had a cat-head. Other advantages of the concept which are more usually cited are that such cranes interfere less in flight paths and can be more easily over-sailed by neighbouring cranes.
Peiner has sold two of its new 500tm SK 575 saddle jib tower cranes to its US distributors.
