South Midlands Communications Group

Pneumatic Telescopic Mast - NL-Series

The NL-Series of telescopic Hilomasts has a base section diameter of 5" and is pneumatically operated by air compressor. The shorter models in this series can be easily operated by a manual foot pump. Being heavier than the NK-Series, NL-Series masts will support larger antennas under more adverse weather conditions. Although NL-Series masts can be used for portable applications, they are primarily designed for vehicle installation, either bracketed to the rear, or mounted through a roof bearing.

Models NL16 and NL22 can be mounted onto the roof of a vehicle in a sliding carriage. The carriage slides rearwards and the mast is then tilted and clamped in the vertical position. Masts NL8, NL12 and NL22 have a top section diameter of 2" for attaching antennas. Masts NL9, NL10 and NL16 have a top spigot of 2 inch diameter x 5.1 inches long. A popular use for the NL-Series masts on a vehicle installation is with our HiloCAM kit.

The table of masts below is only a small selection of possible mast configurations. 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.

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)
NL8 25' 11" 5' 10" 7 2 5 55 87 87 75
NL8 NLC 24' 5" 5' 5" 7 2 5 55 87   75
NL9 28' 1" 8' 0" 5 3 5 77 81 81 82
NL9 NLC 27' 9" 7' 4" 5 3 5 77 81   82
NL10 34' 5" 8' 3" 6 2.5 5 60 68 75 90
NL10 NLC 33' 4" 7' 6" 6 2.5 5 60 68   90
NL12 40' 0" 8' 0" 7 2 5 55 59 68 101
NL12 NLC 38' 4" 7' 7" 7 2 5 55 59   101
NL 16 51' 2" 13' 7" 5 2.5 5 51 48 63 134
NL16 NLC 51' 2" 13' 2" 5 2.5 5 51 48   134
NL22 71' 2" 13' 7" 7 2 5 31 35 57 163
NL22 NLC 71' 2" 13' 5" 7 2 5 31 35   163

† 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