Various bends in cable trays 90° bends

90-degree bends in cable trays are primarily categorized as horizontal bends, vertical inside bends, and vertical outside bends, each designed to guide cables smoothly through directional changes.Horizontal BendsHorizontal bends change the direction of the cable tray along the same plane. They are used when the tray needs to turn left or right without changing elevation. These bends are common in ladder-type, solid-bottom, and wire mesh trays and can include radius bends for smoother cable flow, reducing stress on the cables during turns .Vertical Inside BendsVertical inside bends allow the tray to move upward or inward along a vertical plane. They are used when cables need to rise from a lower level to a higher level, such as from a floor-mounted tray to a ceiling-mounted system. This type of bend ensures a smooth transition and minimizes cable stress .Vertical Outside BendsVertical outside bends direct the tray downward or outward along a vertical plane. They are typically used to route cables from overhead trays to ground-mounted equipment or to descend between floors. These bends maintain structural integrity while allowing efficient cable routing .Radius and Custom BendsSome 90-degree bends are designed with a radius to create a smooth curve rather than a sharp angle. Custom radius bends are ideal for installations around columns or irregular spaces, ensuring cables are not stressed and maintain proper alignment . Adjustable bends are also available for medium and heavy-duty trays, allowing configurations from 30° up to 90° .Additional VariationsReducer-type bends connect trays of different widths while maintaining smooth cable transitions .Horizontal cross junctions can create multiple 90-degree paths on the same plane for complex routing .Material considerations include mild steel (pre-galvanized or hot-dip galvanized) and stainless steel (316L), with options for ventilated or closed covers . These types of 90-degree bends ensure that cable trays can navigate complex layouts efficiently while protecting cables from sharp bends and mechanical stress.