Hinged Fork With Winch

Description

Hinged Fork With Winch

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A Hinged Fork with Winch Attachment is a specialized material handling solution commonly used in construction, logistics, and forestry.
It combines the tilting capability of a hinged carriage with the vertical lifting power of a hydraulic winch.
Below is a typical technical specification guide for this unit.

Primary Components

Hinged Carriage: Allows the forks to tilt downward (typically up to 90°) and upward (20°–45°).
Hydraulic Winch: Mounted to the top or back of the carriage frame for vertical lifting or pulling.
Pallet Forks: Standard or heavy-duty forks mounted on the tilting shaft.
Lifting Jib/Arm: A structural frame that supports the winch cable pulley.

Technical Specifications (Standard 2.5–3.5 Ton Class)

Feature Standard Range;
Lifting Capacity (Forks) 2,500 kg – 3,500 kg.
Winch Pulling Capacity 1,000 kg – 2,000 kg.
Tilt Angle (Down/Up) 90° / 25°.
Winch Cable Length 15m – 30m.
Cable Diameter 10mm – 12mm.
Hydraulic Pressure 160 – 200 bar.
Mounting Interface ISO Class II or III (Hook-on).

Key Functionalities

Dual-Mode Operation.
Fork Mode: Functions like a standard forklift but with an extended range of motion. The steep downward tilt is ideal for discharging loose loads (like logs or pipes) or emptying bins.
Winch Mode: Allows the operator to reach into areas where the forklift cannot drive (e.g., lowering equipment into a trench or pulling loads from inside a deep container).

Hydraulic Integration

Requires at least two auxiliary hydraulic circuits:
One for the hinged tilting cylinders.
One for the winch motor (bidirectional).

Safety & Structural Features

Load Holding Valves: Prevents the winch or the hinged forks from dropping in the event of a hydraulic pressure loss.
Overload Protection: Mechanical or hydraulic sensors to prevent lifting beyond the winch’s rated capacity.
Wire Rope Guide: Ensures the cable winds evenly onto the drum to prevent “bird-nesting” or snapping.
Reinforced Pivot Pins: Hardened steel pins with grease points to handle the high torque of tilting heavy loads.

Typical Applications

Forestry: Using the hinged forks to “cradle” logs and the winch to drag timber to the machine.
General Construction: Lifting materials to rooftops or lowering them into foundations.
Waste Management: Using the 90° tilt to dump specialized containers.
Note: Always ensure the forklift’s residual capacity plate accounts for the weight of this attachment, as the added weight and forward center of gravity (CoG) will reduce the overall lifting capacity of your machine.
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