Pneumatic Telescopic Mast
Fully erected Height
21 meters ± 0.2 meter
Fully retracted height
3.6 meters ± 0.1 Meter
10 Kg maximum
Diameter of body section (main mast)
not exceeding 135 mm
Guy ropes stainless steel of diameter
Guy ropes stainless steel for three peg system
12 No. (3X4)
Type of operation
Pneumatic-Foot pump operated
± 3 °
± 180 ° azimuth plain
Weight of mast
< 70 Kg
3Nosof900mm(± 0.5mm)longwith arrangement for fitment 4 Nos. guy ropes
Base plate of 500 mm x 8 mm (± 0.5 mm) diameter with Cup & Nails of 600 mm x 16 mm (± 0.5 mm) size (as per requirement)
Hammer (5 lbs with wooden handle)
Foot pump: Double cylinder, max air volume: 650 cu cm per stroke with 2 meter long rubber pipe having brass nozzle at open end to match with pneumatic mast nozzle.
Lighting protector complete only for 21 Meter mast
Clamps for mounting headload: As per user requirement
The mast is made of high strength heat treated aluminium alloy HE 30-T6/ HE 9-6063- T6, light weight and high tensile along with precision machine guide, locking collars and guy holder. The mast will withstand the adverse environmental standards such as high and low temperature and difficult field conditions.
The mast is erected by using a foot pump.
The mast will with stand wind speed of up to 120 Kms/ hour for short duration and 80 Kms / hour for regular operation with the all guys ropes tightened
The mast will stay in erected conditions without air pressure for long periods. Each tubes moves on Teflon bearing and high quality air seals.
Each section will be hard anodized & the body along with locking guide & guide collars is Olive Green Spray painted / powder coated.
All mild steel parts will be a hot dip galvanized to with stand harsh environmental conditions
The masts will be approved to rigorous MIL STD 810F for environmental standard for operation and storage.
The complete mast system will be included all needed accessories for its erection, such as base plate, spikes, foot pump, pegs, hammer, stainless steel guy ropes, guy tensioner, clamps etc.
Base plate with cup, nails (base spike), pegs, guy tensioner and clamps etc will be made of hot dip galvanized and of specification described above.
Arrangement for fitment of ground plain antennas on the top of the mast
Product Name: PTM-21