AlFaris Installs 150t Penthouse Structure on Clinker Silo

Al Faris recently completed lifting a penthouse structure on a clinker silo.

A 650t crane was rigged up and lifted the ring beam assembly above the silo. Stay cables were used to secure the ring beam at 44m. Two 250t cranes are used to connect the rafter assembly (25t each). Once the rafters have been assembled, the silo’s load is gradually released.

The entire penthouse set (150t) of dimensions (15m x 15m x 22m) is lifted and placed on top of the ring beam with a rafter.

As per the scope they initially lifted the 40m long conveyor in tandem with 450t and 250t cranes and erected it over the existing column and silo.

Project scope:
The erection of steel structures on a clinker silo such as the ring beam, rafter frames, penthouse, and conveyor galleries.

Equipment used:

• Liebherr 110t mobile crane,
• Liebherr 250t mobile crane,
• Liebherr 450t mobile crane,
• Kobelco 250t crawler crane,
• IHI CCH2500 – 250t crawler crane,
• Demag 650t crawler crane.

Load details:

• Penthouse assembly (150t),
• Ring beam assembly (70t),
• Rafter assembly (25t),
• Conveyor Gallery (48t)

Source Al Faris