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UNI-LOC® Torpedo & Spelter Buttons
     
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Torpedo Style Mobile Crane Button for non-rotating wire rope

Load Bearing and Load Rated


Each button is type tested to destruction and proof tested AFTER installation onto the rope to 40% of the rope’s Breaking Strength. The button is permanently stamped with a unique serial number. A Test Certificate is issued for each button installed.

All buttons for 16 mm rope and up and are supplied with a hoisting eye.


And now the answer to your next question: YES, we will install such buttons onto 'other' ropes not supplied or manufactured by us. In such cases we have to repeat our type testing procedure which includes at least one breaking strength verification test of the actual rope onto which the button is to be installed. Ask for our quote and availability of production capacity. We reserve the right to refuse such orders at any time.
 
Nom. Python® non-rotating rope dia. UNI-LOC®
Mobile Crane Button
Length inch (approx.)
13 3-5/8
14 3-5/8
15 3-5/8
16 4-3/16
17

4-3/16

18 4-3/16
19 4-7/8
20 4-7/8
21 4-7/8
22 4-7/8
23 6
24 6
25 6
26 6
27 6-7/8
28 6-7/8
29 6-7/8
30 7-3/8
31 7-3/8
32 7-3/8

For further information please ask for a copy of our Torpedo Button Installation Policy.
 
Instead of sending the crane,
you have the option to just send us the drum
  Typcial installation into a pocket pouch.
 
Spelter Buttons
 
These Crosby Buttons are designed for use with mobile cranes and can be used with high performance Python® non-rotating rope types. Sockets and buttons are re-useable. Installation is done with WireLock.

And NO, we don't suggest you do this yourself unless you are trained and qualified.

Buttons installed by Unirope at our plants are proof loaded to 50% of rope's Minimum Breaking Strength. Test Certificate is issued for each button.

Important Note:
The customer is responsible to verify that the dimensions shown in the table below fit his mobile crane. Unirope Limited does NOT assume responsibilty if this Spelter Socket does not fit your crane.
 
 
Nom. Python® non-rotating rope dia. mm A B C D E F J K L
13 - 16 7.22 2.66 1.28 1.19 1.22 .62 1.50 3.50 .25
16 - 19 8.56 3.12 1.53 1.38 1.44 .75 1.75 4.28 .38
19 - 23 10.00 3.62 1.78 1.62 1.69

.88

2.06 4.78 .38
22 - 26 11.75 4.38 2.03 2.00 2.00 1.03 2.44 5.62 .62
28 - 32 13.81 5.00 2.53 2.25 2.50 1.11 2.94 7.08 .75
35 - 38 16.69 6.00 3.03 2.75 3.12 1.27 3.62 8.08 .75
 
 
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