Slightly heavier duty than the QTM Mast, all ST Masts have keyed tubes which enable rotation when required for directions head loads. ST Masts have a 3" base tube and a 1 ½" top tube - all anodised.
Choose from heights between 4.5 and 9 metres with plain or combined clamp collars. ST Masts are offered as DAF Kits when the mast is required to be free-standing.
Standard ST Mast Range
| Mast Model | ST 45 | ST 55 | ST 65 | ST 90 |
| With plain collars Cat. No. | 28443 | 28444 | 28445 | 28446 |
| Retracted height (m) | 1.48 | 1.74 | 2.00 | 2.70 |
| With clamp collars Cat. No. | 28447 | 28448 | 28449 | 28450 |
| Retracted height (m) | 1.54 | 1.80 | 2.06 | 2.76 |
| Extended height (m) | 4.50 | 5.50 | 6.50 | 9.00 |
| Top section diameter mm (inches) | 38.1 (1 ½") | 38.1 (1 ½") | 38.1 (1 ½") | 38.1 (1 ½") |
| Base section diameter mm (inches) | 76 (3") | 76 (3") | 76 (3") | 76 (3") |
| Weight of mast | 11 kg | 13 kg | 15 kg | 18kg |
| No. of sections | 4 | 4 | 4 | 4 |
| Maximum headload | 15 kg | 12 kg | 10 kg | 7.5 kg |
| Antenna socket diameter (mm) | 24 | 24 | 24 | 24 |
Note: All figures subject to confirmation at time of order.
Specifications
Mast sections
Heat-treated aluminium alloy.
Collars
Plain collars for minimum retracted height.
Clamp collars for semi-permanent
erection.
Guys
5 mm Terylene cord with ball tensioners and quick attachment hooks.
Finishes
Fittings: zinc plated and passivated.
Paint: standard colour white.
Mast sections: anodised natural.
Operating Temperatures
Dry: +55°C to -40°C
Maximum recommended air pressure: 1.5 kg/cm2 (21 lbs/in2g).
Accessories
Fixed Base - Cat. No. 14584
The base for a non-turning mast.
Rotatable Base - Cat. No. 14585
This base makes any mast turnable.
Side Handles - Cat. No. 1977
Used in conjunction with a rotatable base.
Roof Bearing - Cat. No. 1976
For a perfectly scaled mast when it is built into a vehicle.
Saddle Clamp - Cat. No. 2433
With this bracket a mounted mast may be rapidly removed.
Upper Mounting Bracket - Cat. No. 14586
For mounting a mast on a vertical surface.
Lower Mounting Bracket - Cat. No. 16686
Used to support the bottom of mast in combination with above.
Canvas Cover - Cat. No. 6411
Protects the upper part of closed mast from the weather.
'J' Type Mounting Ring - Cat. No. 2020
Provides attachment points when fitted to mast
