Studio project by Turnaround. Ostrand is an invented company and nothing here is for sale.

Ask for a quote
What we wind / Compression springs
Compression springs on a pale green ground
L0, free lengthDd
Main dimensions. Put these on your drawing, or in the quote form.

Compression springs

Pushes back when squeezed

Open-coil springs that resist being pushed shorter. The most common spring we wind, and the one the calculator on the home page sizes.

Wire0.2 to 6.0 mm
SizeOutside diameter 2 to 60 mm, free length up to 300 mm
MaterialsMusic wire, 302 and 316 stainless, oil-tempered and chrome silicon for heat
FinishesPlain and oiled, zinc, passivated, black oxide
QuantitiesOne prototype to production runs
Size one on the calculator

Options

Where you'll find them: Valves, latches, switches, battery contacts, seat and pedal returns.

Before you send a drawing

Is there a minimum order?
Not for samples: one spring is fine. Production runs usually start at a few hundred, because setting a coiler takes the same hour whether it makes ten or ten thousand.
What tolerances do you hold?
EN 15800 grade 2 for compression springs unless your drawing asks for tighter. Tell us which dimension matters most and we hold that one closest.
Will you sign our NDA?
Yes, before you send the drawing. Yours or ours. Drawings stay on our server and nobody outside the works sees them.

Four answers get you a quote

Load and travel, the space it lives in, where it works, and how many. A drawing helps; a used sample also works.

Ask for a quote