Telescopic Mast Sections:
Heat-treated aluminium allow.

Castings:
Die cast aluminium alloy LM6

Finishes:
Finish, zinc plated and passivated.
Paint, standard colour white.
Mast sections clear anodised.
On Special Order: Nato Green paint with green anodised
mast sections or Desert Sand with yellow anodised
mast sections..

Operating Temperatures:
+55 to -40 degrees C (Dry).

Other Features
Clark Masts WT Series Combined (Locking) Collar portable masts have mast 
section clamps for semi-permanent erection with the air supply removed. Clark Masts 
WT Series Plain (Non-Locking) Collar portable masts require a continuous air supply to 
remain erect. All Clark Masts WT Series portable masts have keyed sections to prevent 
individual rotation of sections, allowing the headload to be rotated through rotation 
of the entire mast.

Clark Masts WT Series masts are often used unguyed. However, 
whenever strong winds may occur, guys must be used. A range 
of guying accessories is available for all Clark Masts WT Series masts.

Principal Dimensions (mm)

Clark Masts WT Series Portable 
Mast Fixing Details

MAST BASE FIXING DIMENSIONS

A 21 metre WT6 mast, Roof Trolley mounted,
capable of a 40 Kg headload, fitted to a Nissan Patrol.