The Pneumatic Telescopic Hilomast - NX Mast Series
The NX Series of telescopic Hilomasts has a base section diameter of 152mm and is pneumatically operated by air compressor. Being heavier than the NL Series it will support larger antennas and should be considered as being the maximum size necessary for general use.

Although the NX Series can be used for portable applications it is primarily designed for vehicle installation, either bracketed to the rear, or mounted through a roof bearing. Models NX18, NX25 and NX30 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. All masts in this NX Series can be trailer mounted.

The NX30 has a top section diameter of 50mm for attaching the antenna. All other NX masts have a top spigot of 50mm diameter x 130mm long. A popular use for this range on a vehicle installation is with our HiloCAM kit.

Every mast in our NX range is available without locking collars, please contact a member of our sales team to discuss your requirements.

Please click here to download a copy of the Hilomast catalogue.

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

Mast Height Extended Height Retracted Number of Sections Diameter of Top Section Vertical Head Load Max Wind Speed Unguyed Max. Wind Speed Guyed Top Guy Ref. No. inc. Stakes Basic Weight of Mast
metres metres mm kgs kph kph kgs
NX8 7.6 1.91 7 76 50 155 155 NUG/6GS 50
NX8 NLC 7 1.7 7 76 50 155 50
NX10 10.1 2.51 6 89 50 120 120 NUG/7GS 60
NX10 NLC 9.7 2.3 6 89 50 120 60
NX14 13.6 2.64 8 63 35 92 95 NUG/5GS 70
NX14 NLC 13 2.4 8 63 35 92 70
NX18 18.5 4.32 6 89 30 70 83 NUG/10GS 93
NX18 NLC 18.5 4.2 6 89 30 70 93
NX25 25 4.44 8 63 20 52 80 NUG/9GS 110
NX25 NLC 25 4.3 8 63 20 52 110
NX30 29.8 4.57 9 50 14 44 75 NUG/8GS 120
NX30 NLC 29 4.4 9 50 14 44 120

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.