Adjustable feet SF20 black

The foot body is injection molded in PA6, that is nylon, a tough engineering material with good wear resistance and high impact strength. The material stands up to oils, greases and most cleaning agents found in a workshop, and it takes knocks and daily handling without cracking. PA6 does take up some moisture, but in a leveling foot that does not affect the function to any noticeable degree. The screw is in zinc plated steel, which gives basic corrosion protection in a normal indoor environment. The color is black and the surface matte, a combination that blends in under most machines and does not draw attention to dust or small blemishes.

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Adjustable Feet SF20 is a series of plastic leveling feet for machine frames, tables and fittings in a workshop environment. The foot is screwed into a threaded hole in the frame leg and compensates for uneven floors; you wind it in or out until the equipment stands level, without shims and packing pieces. SF20 is an articulated leveling foot that can be angled about 35 degrees, so the base follows the floor even when the frame leg leans considerably. A hex socket in the bottom and a wrench grip on the screw let you adjust it with ordinary hand tools.

The series is sold as one product where the dimensions are variants, so you choose the design directly on the product page. SF20 comes in four designs with a foot diameter of 30 mm and a foot height of 12 mm. The thread is M6 or M8 and the screw length 30 or 40 mm. The range is compact but covers the most common frame dimensions for light and medium heavy structures. You choose the screw length by wall thickness and the adjustment range you want; a longer screw gives a larger range but also takes more space under the leg. Check the dimensions against your structure in the data sheet before you order.

Mounting is quick. Drill and tap a hole in the frame tube, or use a welded in threaded plate, screw in the foot and set the height. The thread should run easily all the way; if it sticks the hole is probably tapped at an angle, and forcing it does not help, redo the hole instead. If you want to lock the setting you counter with a hex nut against the underside of the frame. The manufacturer states an axial load of 400 kg per foot. With four feet under a frame that gives plenty of capacity, but count on margin anyway if the load is unevenly spread or if the machine vibrates. Keep in mind as well that the load should be spread evenly over all the feet, and that soft or sensitive floors can justify a larger foot diameter since the pressure against the surface drops as the base area grows.

SF20 is packed in 400 pieces per pack whatever the version. A data sheet with all dimensions for each version is available from the manufacturer, and the full variant list with supplier codes is shown on the product page.