South Midlands Communications Group

Pneumatic Telescopic Mast - NH-Series

The NH-Series of telescopic Hilomasts has a base section diameter of 3.5" and is pneumatically operated with either a manual foot pump or small air compressor.
Although the smallest in the range, they are robust and ideal for applications where portability is of prime importance. Easily fitted to a vehicle, the masts are suited to mobile applications where light antennas are required. The top section diameter for the fitting antennas is specified in the table below.

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

The table of masts below is only a small selection of the possible mast configurations available to you.  Due to the modular design of all Hilomast Pneumatic masts, we are able to offer masts in custom sizes, with or without locking collars, and in various colors and finishes. Please contact a member of our sales team for a friendly chat about your requirements.

Specificaton for Locking Collar and Non Locking Collar (NLC) models.

Mast Height Extended Height Retracted Number Of Sections Diameter Of Top Section Diameter Of Base Section Vertical Headload Max. Wind Speed Unguyed Max. Wind Speed With Top Guys Basic Weight Of Mast
  (ft) (ft)   (inches) (inches) (lbs) (mph) (mph) (lbs)
NH 5 16' 5" 4' '7" 5 1.5 3.5 40 112 112 33
NH 7 23' 0" 6' 0" 5 1.5 3.5 33 84 99 42
NH 9 29' 6" 7' 6" 5 1.5 3.5 29 67 91 51

† With non-rotating base      * Top guys recommended

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 = 1 ft². NK = 1.5 ft². NL = 2.1 ft². NX = 3.2 ft². NY = 11.8 ft².

© Hilomast LLC 2017