Introducing JK Series Mine Hoist Sheaves for Vertical Shaft Applications

In modern underground mining, the reliability of a hoist system often determines the efficiency and safety of the entire operation. At the core of this system is the sheave assembly, sometimes referred to as the sky wheel, which guides the rope during lifting and lowering.

Our JK series vertical mine hoists are designed with this principle in mind. Each sheave assembly is produced with a cast-welded structure, ensuring the geometry matches the drum diameter. This careful alignment allows the rope to transition smoothly, reducing both wear and energy loss during continuous duty cycles.

[The JK series hoist winch sheaves that have been produced in the factory are displayed]

To meet and exceed regulatory standards, the JK series follows a D/d ratio of 80 or greater. For users adopting locked-coil ropes, the ratio can be increased by up to 20 percent, offering even longer rope life. The groove surface of every sheave is fitted with a polyurethane liner. This material helps reduce abrasion, prevent slippage, and can be replaced in sections, which simplifies long-term maintenance.

Durability is further enhanced by the use of heavy-duty spherical roller bearings. Together with an adjustable wedge-block mounting system, these components provide high load capacity and accurate positioning even under demanding shaft conditions. The result is less vibration, reduced downtime, and a longer overall service life for the hoist.

Mining operators who rely on critical lifting know that stable rope guidance is non-negotiable. By choosing the JK series hoist systems, clients gain equipment that is not only engineered for safety but also designed for lasting performance. For projects that demand efficiency without compromising compliance, our sheave assemblies offer a dependable solution backed by years of practical mining experience.