Series 90 Sectional Mast Systems

This mast was developed from Type 73 to meet the need to lift 100 kg antenna loads up to 40 metres with great stability and safety. It uses a 4-legged erection gear and guys at 90°. After erection all erection material may be removed from the site. It is therefore possible to erect a number of masts with a single set of erection equipment.

Rapidly knocked-down transportable sectional masts for Rear or Diplomatic communications in inaccessible places. This is a mast series which typically enables grid parabol antennas up to 3 metres diameter to be placed at heights up to 40 metres with the necessary torsional stability.

The 90 degree guy control system retains safety at all stages of erection and retraction. Built-in crane device enables heavy antennas to be mounted with minimum effort. Once erected, all erection gear may be removed leaving a semi-permanent mast. Capability : 10 to 40 metres, headload up to 300 kg. Erection example 30 metres : 5 Persons, time to erect with typical antenna, 2 ½ hours.

Brief Specification

• Tubular mast sections 150 mm dia x 2 metres long, aluminium alloy
• 1000 kg capacity lifting hoist
• Guy Controllers for each 10 metre of height
• Crane for mounting antennas
• Operating team is 2 persons for 10 metres, 5 persons for 40 metres
• Time to erect 20 metre mast with 100 kg load : 2 hours.

Standard Series 90 Field Mast Kits