The PneumaticTelescopic Hilomast - NK Mast Series
The NK Series of telescopic Hilomasts has a base section diameter of 102mm and is pneumatically operated with either a manual footpump or small air compressor.

Although designed for long term applications the NK series is equally suited for experimental work. The top section diameter for fitting antennas is specified in the table below.

The whole range of NK masts are also available without the locking collars, please contact our sales team to discuss your requirements.

Please request a copy of our new Hilomast brochure for further details on other competitive products we specialise in. Alternatively please click here to view the PDF.

Mast NK6 NK9 NK11 NK16
Height Extended (Meters) 5.9 9 10.9 16
Height Retracted (Meters) 1.64 2.3 2.37 4
Number of Sections 5 5 6 5
Diameter of Top Section (mm) 50 50 38 50
Vertical Headload(Kgs) 27 22 18 20
Max Wind Speed Unguyed (Kph) 164 114 96 65
Max Wind Speed Guyed (Kph) 164 137 125 112
Top Guy Ref. Number NUG/2 NUG/2 NUG/3 NUG/4
Basic Weight of Mast (Kgs) 21 26 29 44

The table shows the vertical head load that each mast will support and the maximum operational wind speed. The weight of the antenna, however, is not usually the main criterion when selecting a mast. The limiting factor is usually the ‘side surface area’ of the antenna.

The wind speeds shown are based on the following side surface areas:
NH Masts = 1000 sq. cms. NK = 1400 sq. cms. NL = 2000 sq. cms. NX = 3000 sq. cms. NY = 11000 sq. cms.