The lifting capacity and rotation radius of pneumatic winches are critical parameters that determine their suitability for specific tasks. Below is a detailed explanation:

Lifting Capacity of Pneumatic Winches

Range: Pneumatic winches are available in various models with lifting capacities typically ranging from 2 tons (20 kN) to 150 tons (1500 kN). For example:

Smaller models (e.g., QJ-0.5) may have a maximum pull of 5 kN (0.55 tons).

Larger models (e.g., WQHS-100×6X) can achieve a maximum lifting force of 150 kN (15 tons).

Factors Affecting Lifting Capacity:

Air Pressure: Higher air pressure (typically 0.5–0.9 MPa) increases the winch's lifting capacity.

Motor Power: More powerful pneumatic motors can handle heavier loads.

Design: The winch's structural design, including the drum size and gear ratio, also impacts its lifting capacity.

Applications:

Light-duty models are used for general lifting and hauling in mines, oil fields, and on shipboards.

Heavy-duty models are employed in oil field drilling, mine exploitation, and other high-load applications.

Rotation Radius of Pneumatic Winches

Definition: The rotation radius (or rope capacity) refers to the maximum length of rope that can be wound onto the winch drum. This determines how far the load can be lifted or pulled.

Range: The rotation radius varies depending on the model and drum size. For example:

Some models may have a rope capacity of 30 meters (98 feet) with a rope diameter of 8 mm (5/16 inch).

Larger models can accommodate ropes up to 300 meters (984 feet) long with diameters of 24 mm (15/16 inch).

Factors Affecting Rotation Radius:

Drum Size: Larger drums can hold more rope, increasing the rotation radius.

Rope Diameter: Thicker ropes reduce the total length that can be wound onto the drum.

Winch Design: The gear ratio and motor speed also influence how quickly the rope can be wound or unwound.

Applications:

A larger rotation radius is beneficial for tasks requiring long-distance pulling or lifting, such as offshore mooring or deep mining operations.

Smaller rotation radii are suitable for confined spaces or shorter-range tasks.

Key Considerations

Load Matching: Always ensure the winch's lifting capacity exceeds the load to be lifted or pulled. Overloading can damage the winch and pose safety risks.

Rope Selection: Choose a rope with an appropriate diameter and material for the task. Thicker ropes offer greater strength but reduce the rotation radius.

Environmental Factors: In harsh environments (e.g., offshore, mining), select ropes and winches that are corrosion-resistant and durable.

Safety Margins: Apply safety factors (typically 1.5–2 times the rated capacity) to account for dynamic loads and unexpected conditions.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment