CET Blocks for Helicopter Stringing

These two or three bundled blocks are suitable for stringing the pilot rope by a helicopter. The pilot rope is automatically positioned in the (central) wheel. Special guides ensure the correct positioning of the rope during stringing operations. The wheels are made of aluminum alloy mounted on ball bearings; the lateral ones have the groove lined by neoprene ring; the central one has the groove made up of wear-proof interchangeable nylatron sectors. The frame is made of galvanized steel. The blocks are supplied with fixed connection. 

Grounding device or complete conductive sheaves are available upon request.

Helicopter Stringing Block
CET Pulleys for Helicopter Stringing

Models

Model Dimensions inches (mm)Breaking Load
lbf (kN)
Mass
lbs(kg)
A B C D E F G H I L
21003000 31/32
(25)
15/16
(24)
2 11/16
(68)
32
(800)
70
(1,775)
30
(765)
35
(893)
29
(729)
16
(400)
6
(145)
 40,466
(180)
392
(178)
21003010 31/32
(25)
15/16
(24)
3 3/4 
(95)
32
(800)
70
(1,775)
30
(765)
35
(893)
32
(805)
16
(400)
7
(175)
 40,466
(180)
437
(198)
21003200* 31/32
(25)
15/16
(24)
3 3/4 
(95)
39
(1,000)
78
(1,980)
30
(765)
43
(1100)
32
(805)
16
(400)
7
(175)
44,962
(200)
516
(234)

Part Number
21000208   2 or 3 Conductor Headboard
21000911  Ground for 3-Bundle Helicopter Block

*Lateral wheels with nylatron lining 

Sectors in IEEE, nylatron and aluminum, or solid aluminum wheels are available upon request