Federtechnik Kaltbrunn AG

Wire springs

Compression springs Wire Ø 0.1 mm to 20 mm Rectangular or square cross-section up to 15 x 15 mm Cylindrical, conical, double-conical, tapered, concave or convex in shape Surface treatment at the customer’s request Data sheet This email address is being protected from spambots. You need JavaScript enabled to view it.
Extension springs Wire Ø 0.1 mm to 10 mm From 10 mm to 16 mm excluding loops; with clips and thread inserts Loop shape according to the customer’s request Data sheet This email address is being protected from spambots. You need JavaScript enabled to view it.
Torsion springs Wire Ø 0.15 mm to 6.5 mm, larger Ø on request Materials: round, square and flat Data sheet This email address is being protected from spambots. You need JavaScript enabled to view it.
Bent wire components Wire Ø 0.15 mm to 6.5 mm, larger Ø on request This email address is being protected from spambots. You need JavaScript enabled to view it.
Wrap springs Made of round and square wire This email address is being protected from spambots. You need JavaScript enabled to view it.
Special parts Copper coils Various designs and dimensions; wires with round or square cross-sections; various coatings with stripped ends; from prototype to large batch series. Conveyor spirals Used as rock drills, in medical technology or for supply processes (dosing, weighing and mixing). Manufacturing length of up to 1,200 mm; diameter of up to 130 mm. Endless coils They are needed where a continuous process without interrupts is required, e.g. for the plastics industry or to reinforce cables of 500 mm to 1,000 m in length. This email address is being protected from spambots. You need JavaScript enabled to view it.

Leaf springs and punched bent parts

Punched bent parts Different material qualities Material thickness from 0.1 mm to 3 mm Material width of up to 160 mm Provision of advice from the prototype to the mature series production part In-house prototype workshop In-house construction In-house tool manufacture This email address is being protected from spambots. You need JavaScript enabled to view it.
Punched parts Material thickness from 0.05 mm to 4 mm This email address is being protected from spambots. You need JavaScript enabled to view it.
Moulded sheet metal parts Material thickness from 0.05 mm to 4 mm This email address is being protected from spambots. You need JavaScript enabled to view it.
Flat spiral springs Material thickness from 0.2 mm to 1 mm Material width from 1.5 mm to 50 mm This email address is being protected from spambots. You need JavaScript enabled to view it.
Disc springs Punched, without subsequent chip removing process Different material qualities Material thickness from 0.2 mm to 1.25 mm (DIN 2093) Material thickness from 1.5 mm to 5 mm (not in accordance with DIN 2093) This email address is being protected from spambots. You need JavaScript enabled to view it.
Special parts Tolerance rings These parts are installed in steering columns and are used as an anti-theft device. They act as a safety clutch that lets the steering column slip at a certain torque when locked. We manufacture tolerance rings with narrower torque ranges than prescribed in the directive. In each particular case they are adapted to the respective construction; therefore, they are developed and manufactured to meet the customer’s specific requirements. Torsion bars These parts are usually manufactured with a circular bar cross-section. Specially shaped bar ends facilitate clean clamping and application of a specific torque. Compared to the torsion bar, they are thicker and have a square or hexagonal cut or are serrated. This email address is being protected from spambots. You need JavaScript enabled to view it.

Assembly groups

Assembly groups are primarily used where specific solutions are required, in particular in the automotive industry where innovation is part of everyday life. We offer the following:

Advice
Development
Construction
Prototype manufacture at short notice
In-house tool manufacture

Standard springs

We have an extensive warehouse stocked with more than 1,000 items from our range of standard springs. Orders placed by 2.30 pm are shipped the same day.

Compression springs according to DIN 2098, wire Ø 0.25 mm to 10 mm
Extension springs (ends: single full loop over centre), wire Ø 0.5 mm to 5 mm

You can select your requested compression or extension springs in our standard spring catalogue (online shop, currently only for CH customers) and order them directly. Customers from abroad may send orders to This email address is being protected from spambots. You need JavaScript enabled to view it..

If there is nothing suitable for you with the standard springs, you may enter an inquiry with your specifications via compression spring configurator or send it to This email address is being protected from spambots. You need JavaScript enabled to view it..

Drall-Fix

For inquiries or orders please contact us:
Inquiries: This email address is being protected from spambots. You need JavaScript enabled to view it.
Orders: This email address is being protected from spambots. You need JavaScript enabled to view it.

110603 G Fed 1 U

Compression springs

Extension springs

Torsion springs

Bent wire components

Wrap springs

Special parts

Punched bent parts

Punched parts

Moulded sheet metal parts

Flat spiral springs

Disc springs

Special parts