WINCHES HAND CRANK WINCH HOIST BELT WEBBING STRAP HOOK CRANE TON Modello 3D

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11. Stereolithography: *.stl 
12. AutoCAD: *.dwg

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MORE INFORMATION ABOUT 3D MODELS :
STANDARD MANUAL HAND ROTARY/LEVER CRANK WINCH: Versatile Lifting & Pulling with Belt/Strap/Webbing & Hook

This describes a dependable and manually operated winch designed for lifting and pulling loads using a flexible belt, strap, or webbing and a hook. Its standard design ensures common functionality and ease of use, relying on human power applied through a rotary crank or lever mechanism. The use of a belt/strap/webbing offers advantages in terms of load protection and flexibility compared to steel wire rope in certain applications.

Key Features and Functionality:

Standard Design: Adheres to common industry practices for manual winches, ensuring familiarity and compatibility.
Manual Operation: Powered solely by human effort applied to a rotary crank or a hand lever. This makes it ideal for situations where power is unavailable or precise, controlled movement is required.
Rotary/Lever Crank: Offers two common methods of manual operation:
Rotary Crank: A rotating handle that provides continuous pulling or lifting power through a gear system.
Hand Lever: A reciprocating lever that advances the belt/strap/webbing with each stroke.
Belt/Strap/Webbing: Utilizes a strong and flexible material (typically polyester or nylon webbing) as the lifting or pulling medium. This offers advantages such as:
Load Protection: Less likely to scratch or damage delicate surfaces compared to steel wire rope.
Flexibility: Conforms better to irregular shapes.
Lighter Weight: Easier to handle than steel wire rope of comparable strength.
Hook Attachment: Features a sturdy metal hook at the end of the belt/strap/webbing for secure connection to the load directly or via other lifting/pulling accessories. The hook often includes a safety latch to prevent accidental disengagement.
Gear Mechanism: Incorporates a gear system to provide mechanical advantage, allowing the operator to lift or pull loads that would be impossible with direct manual force. Gear ratios vary depending on the winch's intended capacity.
Spool/Drum: The belt/strap/webbing is wound and stored on a rotating spool or drum, often designed to accommodate the specific thickness and length of the flexible material.
Brake Mechanism: Typically includes a built-in brake mechanism (e.g., pawl and ratchet) to hold the load securely in position when the handle is released, preventing accidental slipping.   
Durable Construction: Built with robust materials to withstand the stresses of lifting and pulling.
Mounting Options: Designed for secure mounting to a stable surface, such as a wall, post, or vehicle.
Benefits:

Independent Operation: Requires no external power source.
Precise Control: Manual operation allows for very fine and controlled movement of loads.
Load-Friendly: The belt/strap/webbing is less likely to damage delicate or finished surfaces.
Flexible Handling: Can be easier to work with around irregularly shaped objects.
Relatively Simple to Maintain: Fewer moving parts compared to powered winches.
Cost-Effective: Generally less expensive to purchase and operate than electric or hydraulic winches.
Portable (depending on size): Smaller manual winches can be relatively portable.
Potential Applications:

Boat Trailers: Pulling boats onto trailers (especially smaller craft).
Utility Trailers: Securing and moving lighter, potentially delicate loads.
Automotive and Motorcycle Loading: Pulling vehicles onto trailers or lifts without risk of scratching.
Workshop and Garage Tasks: Lifting lighter equipment or materials where surface protection is important.
Theater and Stage Rigging: Lifting and positioning lighter scenery and equipment.
Securing Cargo: Tensioning straps to secure loads during transport.
Smaller Off-Road Vehicles: Self-recovery in less demanding situations.
In summary, a standard manual hand rotary/lever crank winch with a belt/strap/webbing and hook provides a reliable, manually powered solution for lifting and pulling tasks, offering precise control and the benefit of a load-friendly lifting medium.