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Hook

Paint hangers for coating lines are wire-formed hooks used to suspend workpieces (objects to be coated) from conveyors, hangers, wires, or suspension beams in painting lines. They are bent from iron or spring steel wire, and tip shapes include square types (PDV, 90DV, etc.) and R types (PRX, 90RX, etc.). The bend angle (45°, 90°, 180°, etc.) determines how the hook is hung. Twin hooks with two hanging sections are inserted into suspension beams with fixed hole pitches, which reduces swaying and stabilizes the workpiece. They are used throughout the process from pretreatment through painting to baking and drying. Because paint adheres to them, they are consumables and are replaced repeatedly.

How to choose Hook

  1. 1. Select wire diameter to suit workpiece weight

    Wire diameters in the listed products range from 1.5 to 4 mm. Thicker wire shows less deflection and elongation under load, allowing heavier workpieces to be supported stably. Thinner wire passes more easily through small parts and holes in workpieces and leaves smaller contact marks. Select based on both the workpiece weight and the diameter of the hole to be hooked.

  2. 2. Determine length according to hanging height

    Length L in the listed products ranges from 250 to 600 mm. This dimension determines the distance from the conveyor to the workpiece and the hanging position inside the painting booth or drying oven. Check interference between workpieces and between workpieces and the floor or equipment, as well as the reach of spray guns and nozzles, and select a length that gives the required height on the line.

  3. 3. Match the suspension beam pitch

    Twin hooks are made to match the hole spacing of suspension beams, and the listed products support a 50 mm pitch. If the hole pitch of the beam in use does not match, the hook cannot be inserted or its fixing becomes unstable. Measure the beam dimensions on site and verify them before introduction.

  4. 4. Check hook width and hanging section shape

    Listed twin hooks include examples with a 30 mm hook width. The width of the hanging section, the square or R tip type, and the bend angle affect how the hook engages with workpiece holes or jigs and how resistant it is to slipping off. Select according to the shape of the hanging point on the workpiece.

  5. 5. Evaluate material for strength and swaying resistance

    The listed products are made of iron, and some twin hooks are made of spring steel. Spring steel has elasticity and resists deformation, so it suppresses swaying and suits repeated use. Confirm that the material can withstand the baking temperature and the stripping method used.

  6. 6. Account for paint buildup and replacement cycle

    Paint accumulates on hooks, causing reduced conductivity (poor adhesion during electrostatic painting) and dimensional changes. Decide operationally whether to strip and reuse hooks or replace them as disposables, and keep enough units on hand to match usage.

This guide was written by AI based on the listed products' documents and specification items. Check each manufacturer's documents before adopting.