Wolffkran Wolff 6020.6 clear

After almost a decade, Wolffkran has launched a new series, Wolff 6020 clear, a 140mt flat-top tower crane to replace its existing WOLFF 6015 clear series which was introduced to the market in 2008.

The new flat-top tower crane will be available to the customer from September 2017. It comes with a 6-tonne version, WOLFF 6020.6 clear and the 8-tonne version, WOLFF 6020.8 clear. Both models come with three different tower connections, which can be connected to the narrow UV 15 tower system as well as to the wider towers TFS 20 and UV 20.

Wolffkran engineers have also redesigned the trolley to optimize the run of the trolley. The rollers will now come without wheel flanges, but an addition of a new guide roller on the jib instead.

The connection of the lower belt of the jib has also been redesigned to optimize the transfer of forces on the jib. This allows for the use of smaller, more practical bolts, which makes assembly easier.

Additional Information


Crane Specifications, Load Charts, and Crane Manuals are for reference only. Contact the crane manufacturer for manuals to operate the crane properly.

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Brochure, EN

Product Description

Main Components

25 m basic jib with trolley gear. Extensions up to 60 m radius in 2.5 m steps. Slewing frame with one slewing gear, slew bearing with central lubrication unit and slipring system, operator cabin station with control cabinet. Counterjib with hoisting platform and counterweights.

Drive Technique

All drives frequency controlled squirrel cage motors, fully thermal protected. Hoisting winch Hw 628.1 FU. One slewing
gear with electrically operated weathervaning device. Automatic wind force compensation controls. Trolley gear.

Electrical Equipment

Multi voltage equipment for supplies from 380 V to 460 V at 50 / 60 cycles. Electronic safety crane controls with bus technology. Incremental absolute encoders for all operating movements. Electronic load measuring device at basic jib section. Multilingual graphic display showing information to the operator, both operational and diagnostics.

Safety Devices

Electronic overload protection with WOLFFBoost. Increased load moment limitation due to automatic hoist speed reduction. Menu guided setting of overload protection system and of all limiters from operator’s cabin. Working space limiter. Anti-collision interface. WOLFFLink data transfer System. Trolley rope breakage safety device.

READ MORE:  Wolffkran Wolff 7534.8 clear

Tower Elements, Climbing Device

Tower configuration of WOLFF system tower elements. WOLFF slug bolt connection. Detachable hydraulic WOLFF external climber KWH 15.2 (1.5 m tower), KWH 20.3.1 (2.0 m tower) or the internal climber KSH 15 and KSH 20 M.

Cross Frame Element KRE, Cross Frame KR

For stationary installation with cross frames KR for corner distances from 3.2 m – 10.0 m. Cross frames KR can be modified to KRF. KRE elements can be modified to UW.

Undercarriage UW, Travelling Cross Frame KRF

WOLFF undercarriage UW can be used with a gauge from 6.0 m up to 8.0  m or travelling cross-frame KRF with 6.0 m – 10.0 m.

Power Requirements and hook paths (Slewing part)

45 kVA (Hw 628.1 FU), hook path 190 m in 2-fall operation.


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