Tower cranes are lifting systems that operate with a fixed installation in high-rise building construction and are preferred for long-term projects. In this article, we answer the most frequently asked questions about tower crane ropes.
1. What diameter should a tower crane rope be?
Depending on the tower crane's capacity (in the 6-20 t/m range), ropes with a diameter of 12-20 mm are generally used. The exact diameter is determined from the manufacturer's technical chart.
2. What is the difference between the trolley rope and the hoist rope?
The hoist rope lifts the load vertically, while the trolley rope moves the load carriage horizontally along the boom. The two run on separate drums and can have different diameters.
3. How long does it take before a tower crane rope needs replacing?
Although this varies with usage intensity, it generally needs to be replaced at least once over the course of a project (1-3 years); the interval shortens if wire breakage or wear is detected during periodic inspection.
4. How is the rope checked during tower crane installation/dismantling?
Before installation, it should be checked visually and mechanically whether the rope is wound correctly onto the drum, whether there is any wire breakage, and whether tension balance is maintained.
5. Where does tower crane rope breakage most often occur?
The most common breakage points are the sheave contact areas and the socketing points, where wear and fatigue accumulate.
6. How much do tower crane rope prices cost?
As of 2026, a 16 mm tower crane rope costs approximately 120-180 TL per meter; galvanized and high-strength (1960 MPa) models are more expensive.
7. How long does a tower crane rope replacement take?
On a standard tower crane, rope replacement is generally completed within 1 working day; this can take longer depending on tower height and rope length.
8. What construction should a tower crane rope have?
Since high flexibility and rotation resistance are required, 6×36 IWRC or rotation-resistant (18×7, 35×7) constructions are generally preferred.
9. Is periodic inspection of tower crane rope mandatory?
Yes. Under the Work Equipment Regulation and ISO 4309, tower crane ropes must undergo inspection at regular intervals (generally every 3 months).
10. Why does tower crane rope wear out early?
Insufficient lubrication, overloading, a small sheave diameter (low D/d ratio), and frequent operation at full capacity are the main causes of early wear.