Helideck Frames

01 / 07

A helideck

An octagonal deck on a tubular truss above the module roof. Size and loads follow the helideck designer’s drawings.

Scroll to see how it is built · drag to turn it round

02 / 07

Radial and ring beams

Radial, ring and edge beams, cut and drilled on CNC lines.

How is it possible at Allmarc?

Robotic H-beam cutting and bevelling cellBeams up to 1,000 x 500 mm

Used here for: Radial and ring beams

• Beams up to 1,000 x 500 mm
• 12 m long, 50 mm thick
• Hypertherm XPR 300

All our machinery

Kotec newRun10DX CNC beam drilling lineH-beams up to 1,000 x 500 mm

Used here for: Radial and ring beams

Heavy profiles that need precise holes, where plasma cannot do the job: the lower structure and panel borders of a ground flare, and every bolted PEB and multi-storey frame.

• H-beams up to 1,000 x 500 mm
• Drills 3 faces in one pass
• Channels, angles and box sections

All our machinery

03 / 07

Deck plate

Plate panels welded down flat, with the touchdown circle and marking.

04 / 07

Support truss

Tubular legs and braces carrying the deck clear of the module roof.

How is it possible at Allmarc?

HSG CNC tube laser4 kW

Used here for: Support truss

• 4 kW
• Tubes and sections up to 250 dia
• Automatic loading

All our machinery

Manual MIG weldingQualified welders, including 6G

Used here for: Support truss

• Qualified welders, including 6G

All our machinery

05 / 07

Safety-net frames

Outriggers and frames round the perimeter for the safety net.

06 / 07

Access

A switchback stair from the module roof to the deck edge.

07 / 07

A kit of parts

Beams, deck, truss and net frames: every member numbered, match-marked and packed in erection sequence.