Pneumatic Telescopic Mast – NK Series
The NK Series of telescopic Hilomast masts has a base section diameter of 4″ and is pneumatically operated with either a manual foot pump or small air compressor.
The NK Series is equally suited for any application, from long-term to experimental work.
The top section diameter for fitting antennas is specified in the table below.
Hilomast, LLC also offers custom-built applications with all of the masts in all of our series.
Please feel free to contact Hilomast from our “Contact” page of this website, or call Hilomast, (386) 221-5006, and we will be glad to discuss details and/or options on the NK Series or on other competitive products in which we specialize.
Note: The table of masts below is only a small selection of 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.
| 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) | ||
| NK6 | 19' 4" | 5' 5" | 5 | 2 | 4 | 59 | 101 | 101 | 46 |
| NK9 | 29' 6" | 7' 6" | 5 | 2 | 4 | 48 | 70 | 85 | 57 |
| NK11 | 35' 9" | 7' 10" | 6 | 1.5 | 4 | 39 | 59 | 77 | 63 |
| NK16 | 52' 6" | 13' 1" | 5 | 2 | 4 | 44 | 40 | 69 | 97 |
† 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.
