BAL

As individual as your requirements

Ideal for small and medium sized boards
Guiding of the board via the outer geometry or by means of catch pins
Individually adapted to your blank geometry
High and protruding components are taken into account
Interface: D-Sub or according to your requirements
Long service life and easily replaceable wear parts
Optionally with double-sided contacting
On request with integrated limit switch, connectors, switches, display elements, fan, lens, etc.
Layout of the test probes exchangeable

A typical version of our budget solution for small boards. The circuit board is positioned by locating pins and placed on a spring-loaded support plate. By actuating the lever, it is pressed onto the test needles by an individual hold-down stamp.

Here you can see how easy it is to change the needle bed. Two M3 screws are enough to remove it. The hold-down stamp can also be exchanged by loosening two screws. When the layout of the circuit board is adjusted, only a new needle bed including carrier plate and a hold-down device are usually required.

Another example of a typical BAL test fixture. In principle, suitable recesses are provided in the carrier plate in order to be able to easily remove the circuit board.

In this example, a circuit board is inserted into its housing and contacted from above. The signals are fed into the base through an energy chain. A recess was provided on the side, which allows a plug to be inserted into the test object. There is also a slot under the test item in which an RFID card can be placed at a defined distance.

In this case, the test specimen had a size of 14 x 14 mm and had to be contacted at 100 test points with a diameter of 0.35 mm

Individual test adapters are usually wired by us according to your specifications. You can also wire it yourself if you wish. For several identical test adapters or if the pitch does not allow manual wiring, we design circuit boards that ensure professional wiring.

Double-sided contacting is also possible. The upper needle bed is aligned by the same locating pins as the sinker to achieve the highest possible precision. Since the pilot pins are in the CNC-milled needle bed, the tolerance chain is kept low and tolerances of the additively manufactured components have no influence on the accuracy of the test contact pins.