Advantages of the bondura® Tower Crane PIN solution:

• Strong expandable connection pins with perfect fit
• Single nut tightened to secure pin in place by expanding radial forces
• Anti-rotation tool
• No axial or rotational relative movements between PIN and bore, due to the 360 degr. radial contact pressure
• Prevents tear and wear in the joints
• Easily inserted spring cotter to secure nut
• Single nut loosened to easily disassemble pin
• Time-saving installation and disassembly
• Reduced overall costs

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Typical original equipment challenges:

• Difficult and time-consuming installation and disassembly caused by tight tolerances in joints
• Safety-related issues caused by difficult installation and disassembly operations
• Clearances in each original pin joint causing large unwanted sway in the crane
• Wear issues

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Technical data:

• Pin/Sleeve available in 34CrNiMo6+QT or 42CrMo4+QT as standard, specific materials upon request
• Machined parts are treated with Zinc-Nickel Passivation coating to ensure a robust and corrosion resistant connection

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PIN shear capacities:

Diameter [mm] Material quality     Shear capacity to Yield w/o safety factor [metric tons]:

Ø 45                        34CrNiMo6+QT         149

Ø 45                        42CrMo4+QT             121

Ø 55                        34CrNiMo6+QT          223

Ø 55                        42CrMo4+QT             181

Ø 65                        34CrNiMo6+QT          311

Ø 65                        42CrMo6+QT             253

Ø 75                        34CrNiMo6+QT          415

Ø 75                        42CrMo6+QT              337

Ø 85                       34CrNiMo6+QT           533

Ø 85                       42CrMo6+QT               433

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Customer specific calculations when required.

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