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QT Classic Series Portable Telescopic Masts
TECHNICAL DATA

Clark Masts QT Series Portable mast Principal Dimensions

Clark Masts QT Classic Portable Masts 
Mechanical Specifications

QT Mast Telescopic Sections:
Heat-treated aluminium alloy.

Castings:
Die cast aluminium alloy, LM6

Finishes:
Finish, zinc plated and passivated.
Paint, standard colour yellow.
Other colours to special order, including NATO Green.
Mast sections natural finish or clear anodised as indicated.

Operating Temperatures:
+55 to -40 degrees C (Dry).
All Clark Masts QT Classic portable masts have section clamps for semi-permanent erection.
Clark Masts QT Classic portable masts do not have keyed sections, however the locking collars can be used to prevent individual section rotation.

Clark Masts QT Classic portable masts are often used unguyed, depending on the mast height and wind conditions. However, whenever strong winds may occur, guys must be used,
although some models are rated to 128 Km/Hr un-guyed. A range of guying
accessories is available for all Clark Masts QT Classic portable masts.

Clark Masts QT Classic portable mast Specific Accessories are available, including internal and external vehicle mounting brackets, and Field Mounting Tripods.

Clark Masts QT Classic portable Mast Dimensions
Principal Dimensions (mm)
for some QT Classic portable masts with attached handpump


Standard Clark Masts QT Classic Series portable mast Detailed Specifications
MODEL Part 
Number
Extended 
Height (Metre)
Retracted 
Height 
(Metre)
Maximum 
Headload (Kg)
Bottom Section 
Diameter (mm)
Top
Section 
Diameter (mm)
Number 
of 
Sections
Weight 
of 
Mast 
(Kg)
Max. Safe
Windspeed
Unguyed
1000 Sq Cm Sail
Area On Top
(Km/Hr)
Max. Safe
Windspeed
Guyed
1000 Sq Cm Sail
Area On Top
(Km/Hr)
Time To
Extend
Mast
No 
Headload
(Sec)
Time To
Retract
Mast
(No 
Headload)
(Sec)
Max.
Working
Pressure
(Kg/Cm2)
Finish
QT4-6/HP 8285 4.25 1.10 4.5 63.5 32.0 6 6.3 80 128 10 7 1.20 Yellow Paint
CQT4-6/HP 25929 4.25 1.10 4.5 63.5 32.0 6 6.3 80 128 10 7 1.20 Clear Anodised
SQT4-7/HP 9504 4.00 1.00 6.0 76.2 38.0 7 7.5 100 128 12 8 1.20 Yellow Paint
CSQT4-7/HP 25931 4.00 1.00 6.0 76.2 38.0 7 7.5 100 128 12 8 1.20 Clear Anodised
QT6-6/HP 8286 6.10 1.50 4.5 63.5 32.0 6 8.2 80 128 20 10 1.20 Yellow Paint
CQT6-6/HP 25933 6.10 1.50 4.5 63.5 32.0 6 8.2 80 128 20 10 1.20 Clear Anodised
QT6-4/HP 9459 6.10 1.90 10.0 63.5 44.5 4 7.3 80 128 25 15 1.20 Yellow Paint
CSQT6-4/HP 10865 6.00 1.90 20.0 76.2 57.0 4 8.5 100 128 25 15 1.20 Clear Anodised
QTX6-6/HP 34150 6.10 1.50 20.0 89.9 57.0 6 10.8 80 128 30 20 1.20 Yellow Paint
CQTX6-6/HP 34151 6.10 1.50 20.0 89.9 57.0 6 10.8 80 128 30 20 1.20 Clear Anodised
SQT8-6/HP 33500 7.95 1.80 10.0 76.2 44.5 6 11.5 80 128 35 25 1.20 Yellow Paint
CSQT8-6/HP 33501 7.95 1.80 10.0 76.2 44.5 6 11.5 80 128 35 25 1.20 Clear Anodised
QTX8-6/HP 34152 7.95 1.80 20.0 89.9 57.0 6 13.2 80 128 35 25 1.20 Yellow Paint
CQTX8-6/HP 34153 7.95 1.80 20.0 89.9 57.0 6 13.2 80 128 35 25 1.20 Clear Anodised
QT9-6/HP 8287 9.00 1.95 4.5 63.5 32.0 6 10.5 56 110 30 20 1.20 Yellow Paint
CQT9-6/HP 25925 9.00 1.95 4.5 63.5 32.0 6 10.5 56 110 30 20 1.20 Clear Anodised
SQT9-6/HP 9451 8.80 1.95 10.0 76.2 44.5 6 12.2 56 128 35 25 1.20 Yellow Paint
CSQT9-5/HP 25158 8.80 2.25 18.0 76.2 50.8 5 12.2 65 128 35 25 1.20 Clear Anodised
QTX9-6/HP 34154 8.80 1.95 18.0 89.9 57.0 6 14.0 80 128 40 30 1.20 Yellow Paint
CQTX9-6/HP 34155 8.80 1.95 18.0 89.9 57.0 6 14.0 80 128 40 30 1.20 Clear Anodised
QT10-6/HP 25937 10.00 2.10 4.5 63.5 32.0 6 11.0 56 110 30 20 1.20 Yellow Paint
CQT10-6/HP 25938 10.00 2.10 4.5 63.5 32.0 6 11.0 56 110 30 20 1.20 Clear Anodised
SQT10-6/HP 25525 10.15 2.20 10.0 76.2 44.5 6 13.0 80 120 40 30 1.20 Yellow Paint
CSQT10-6/HP 17923 10.15 2.20 10.0 76.2 44.5 6 13.0 80 120 40 30 1.20 Clear Anodised
QTX10-6/HP 34156 10.15 2.20 18 88.9 57.0 6 15.0 65 128 50 40 1.20 Yellow Paint
CQTX10-6/HP 34157 10.15 2.20 18 88.9 57.0 6 15.0 65 128 50 40 1.20 Clear Anodised
SQT12-8/HP 8388 11.55 2.00 2.5 76.2 32.0 8 13.2 40 110 50 35 1.20 Yellow Paint
CQT12-8/HP 25941 11.55 2.00 2.5 76.2 32.0 8 13.2 40 110 50 35 1.20 Clear Anodised
SQT12-6/HP 25943 12.20 2.70 10.0 76.2 44.5 6 10.0 40 110 40 30 1.20 Yellow Paint
CSQT12-6/HP 25944 12.20 2.70 10.0 76.2 44.5 6 10.0 40 110 40 30 1.20 Clear Anodised
QTX12-8/HP 34175 11.70 2.00 10.0 88.9 44.5 8 15.5 56 110 60 45 1.20 Yellow Paint
CQTX12-8/HP 34176 11.70 2.00 10.0 88.9 44.5 8 15.5 56 110 60 45 1.20 Clear Anodised
SQT15-7/HP 9479 15.00 2.80 2.5 76.2 38.0 7 18.0 20 80 65 50 1.20 Yellow Paint
CSQT15-7/HP 25947 15.00 2.80 2.5 76.2 38.0 7 18.0 20 80 65 50 1.20 Clear Anodised
QTX15-7/HP 25519 15.00 2.80 10.0 88.9 50.8 7 21.0 40 80 70 60 1.20 Yellow Paint
CQTX15-7/HP 25949 15.00 2.80 10.0 88.9 50.8 7 21.0 40 80 70 60 1.20 Clear Anodised
 

 

Clark Masts QT Classic portable mast and Mark IV Field Tripod
A Clark Masts QT Classic portable mast mounted on a Mark IV Tripod ready for erection. This 6 metre
model QT6-6/HP portable mast will be at full height in 20 seconds using its
side mounted handpump. A lightweight tripod, the Mark V Tripod, is also available
for use on the smaller Clark Masts QT Classic portable masts up to 6 metres.


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This page was last updated 14-01-2017


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