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FAQ - Wiki - Springs

Over the years we have been asked all sorts of things about springs - here we have collected together a few of the questions that come up again and again. If you have a question that hasn't been answered through Sodemann's spring wiki, we are all standing by to answer any question you may have regarding springs.


Compression springs

What is a compression spring?

A compression spring is a cylindrical coil spring that increases resistance against axially applied pressure. READ MORE...

How do you design a compression spring?

General considerations regarding the design and calculation for a compression spring. READ MORE...

What is the pitch of a compression spring?

The pitch of a compression spring is the distance measured between the centres of two coils READ MORE...

How do I decide direction of wind on a compression spring?

The direction of wind can be either right-hand or left-hand. READ MORE...

How do you count the number of coils in a compression spring?

The number of coils has a large impact on the function of the compression spring. READ MORE...

How do you calculate the spring constant of a compression spring?

The spring constant is always designated as N/mm (Newton per millimetre) 1N = approx. 0.1kg READ MORE...

How do you calculate the force of a compression spring?

The force of a compression spring can be calculated using the following formula: READ MORE...

What tolerances does a standard compression spring have?

The different series follow different standards. READ MORE...

Why shot peen a compression spring?

Shot peening of compression springs is a surface treatment technique that aims to give the spring greater fatigue strength. READ MORE...

How many cycles will a compression spring last?

A huge number of factors come into play when calculating the service life of a compression spring. READ MORE...

Extension springs

What is an extension spring?

An extension spring is a cylindrical coil spring that stores energy, which is used for pulling force. READ MORE...

How do you design an extension spring?

General considerations regarding the design and calculation for an extension spring. READ MORE...

Loop types, Extension Springs

Here you can find the most common loop types used in extension springs. READ MORE...

What tolerances does an extension spring have?

The different series follow different DIN standards. READ MORE...

How far can my extension spring travel?

You should preferably keep travel under 60% of Ln. READ MORE...

How do you calculate the spring constant of an extension spring?

The spring constant is always designated as N/mm (Newton per millimetre) 1N = approx. 0.1kg READ MORE...

Torsion springs

What is a torsion spring?

A Torsion Spring accumulate rotational energy. READ MORE...

Leg positions and torsion springs

Different mounting options - require different leg positions. READ MORE...

Direction of wind for torsion springs

Standard torsion springs are stocked in both right and left-hand wound versions. READ MORE...

Die Springs

What is a die spring?

Painted high-force compression springs in rectangular wire READ MORE...

Why is a die spring painted?

Die springs are grouped according to a colour code. READ MORE...

Why are die springs made from rectangular wire?

Die springs, a spring made from rectangular/square wire READ MORE...

Disc Springs

What is a disc spring?

A conical spring washer that can handle very high forces. READ MORE...

How do you stack disc springs?

The potential combinations of disc springs depend on function and desired force. READ MORE...

Gas Springs

What is a gas spring?

A unit that offers controlled raising or lowering of an object without the use of external energy. READ MORE...

Is there a tolerance in the gas spring's force?

Depending on size, there are tolerances in the gas spring's force. READ MORE...

What forces are possible with gas springs?

Our standard range covers forces from 10N - 2500N. READ MORE...

What is important when mounting gas springs?

Mounting a gas spring correctly will help prolong its service life. READ MORE...

Can gas springs be repaired?

No, it is a closed system - with high pressure. READ MORE...

Can the speed or damping of a gas spring be adjusted?

The speed and damping of a gas spring can be adjusted. READ MORE...

Why does the temperature have an effect on the force of the gas spring?

Gas springs contain gas - and this gas is affected by heat and cold. READ MORE...

Does a gas spring need maintenance?

No, a gas spring is maintenance-free. READ MORE...

What is a traction gas spring?

A unit that offers a controlled pulling force without the use of external energy. READ MORE...

What is the force ratio of a gas spring?

Initial force that has to be overcome in order to set the gas spring in motion. READ MORE...

Why stainless steel gas springs?

Because they are necessary in certain environments and assemblies. READ MORE...

Can you refill a Varilift gas spring?

Yes - you can... But if you follow our instructions, it won't be necessary. READ MORE...

Spring Wire

Material description for spring wire

Overview of the most popular types of spring wire. READ MORE...

What is stainless steel piano wire?

There is no such thing - this is a misunderstanding regarding spring wire. READ MORE...
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