Flat springs are formed from strip rather than round wire, which lets them clamp over a wide contact face or unroll at constant force. Xinshunyan produces hose clamps, flat spring clips, scroll springs, coil flat springs and constant force springs from stainless steel, including 301 and 304, for tubing, roller blinds, solar mounting and equipment accessories.
Every part below is a production photograph. Each can be remade to your dimensions.
A round wire spring pressing on a soft tube or a painted panel concentrates its load on a line and cuts in. A flat spring spreads the same force across the width of the strip, which is why hose clamps and panel clips are made this way rather than from wire.
Coiled constant force springs in 301 stainless deliver near-uniform force as they unroll, which is what makes roller blinds retract evenly rather than snapping shut.
Strip width spreads the clamping load across the tube or panel, protecting soft materials that a wire spring would score.
Most of this family runs in stainless steel, including 304, because flat springs are commonly used in wet, outdoor and washdown positions.
Solid hole, single hole and tabbed geometries give the fitter something to grip with pliers when the clamp is opened and released.
From a sketch, a drawing or the part in your hand to an approved production sample
Nine finishing routes chosen against the environment the spring works in
What gets tested before a batch is allowed to be packed
Any mechanism that needs the same force across a long stroke, such as a roller blind, a cable retractor or a counterbalance. Standard helical springs get stronger as they are extended, which a constant force spring avoids.
301 and 304 are both in production. 301 work hardens to a higher spring temper and is typical for constant force springs, while 304 is the general purpose corrosion resistant choice.
Yes. Send the outside diameter of the tube and the wall material, because the clamping force appropriate for a rigid tube will crush a soft one.
Stainless parts normally ship unplated. Black plating and copper plating are available where the spring is visible or has to match adjacent hardware.
Send your drawing, your sample or your dimensions. Strip and coil springs for clamping and constant force.