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​A heavy duty mast is engineered for applications where ordinary poles or support structures may not provide sufficient strength, stability, or service life. From high-load lighting and communication installations to industrial equipment, surveillance systems, and large outdoor structures, the right mast must withstand vertical loads, wind pressure, vibration, corrosion, and repeated environmental stress.

Manual mechanical masts rely on hand-operated winches or ratchet mechanisms driving steel cables or chains to synchronously extend multiple telescopic sections.

Pneumatic telescopic masts use compressed air to extend sections via pneumatic pistons, with retraction typically powered by gravity or return springs.

The electric telescopic mast is driven by a motorized screw or worm-gear mechanism for smooth raising and lowering.