Distributor Johnson Matthey

Signal is proud to distribute the piezoelectric actuators manufactured by Johnson Matthey Piezo Products GmbH, for electronic needle selection on circular knitting machines.

Johnson Matthey Piezo Products GmbH, located in Germany, has spent over 50 years developing and producing piezoelectric ceramics, piezo components and piezo modules in accordance with individual requirements specified by customers world-wide.

These products have been in use for many years and are available in two product lines:

Direct drive actuators, modules in which the piezo driver is located outside, in the central controller. Normally used on high speed machines like socks or seamless machinery, or where few modules are mounted.
Smart actuators, modules with onboard piezo drivers. Used when the customer needs a bus connection to reduce cabling.

Available in two models and compliant with the most diffused textile fieldbus standard: Siemens© and WAC© Bus (RECAM type).

Applied on many types of circular knitting machines, these actuators are suitable for electronic needle selection systems with a high number of working feeds (large diameter machines) as well as for medium size and sock machines.

Product features

3-wires technology prevents depolarization over time.
Fast and repeatable response time; typical flaps switching time is 2,5 ms, complete process is 4,4ms.
A wide range of flap profiles are available on catalogue; specific flap profiles can be machined on customer drawings, using high-tensile steel.

Field replaceable parts (ceramics, flaps, electronic if any) for all actuator models.
One row flaps or two row flaps for 3-way knit technique selection.
Flap pitch: fine 3.2, standard 4 mm and 5 mm (special).
All metal housing.

All products use piezo ceramic technology that minimizes size and allows for fast working speeds with minimum consumption of energy and no heating.

Johnson Matthey manufactures piezo ceramics internally using proprietary technology, developing top of the range products that have minimal footprint and low power consumption,

For more information about products and related applications, please visit the Piezo products Division website at https://www.piezoproducts.com.

You can also watch video examples of the products’ applications at https://www.youtube.com/user/JohnsonMattheyPiezo

Trust Signal and Johnson Matthey, with over 100,000,000 piezo products having been shipped worldwide.

Signal also delivers a complete line of Electronic Controllers tailored for these actuators that are well suited for circular and sock knitting machines. They also offer full customer support for any related problems (designing, set-up, adjustment and repairs)

Johnson Matthey spare parts

Signal also offers a full range of spare parts for the Johnson Matthey selection groups replacement (flaps, piezoceramics).

By providing us the JM product codes, our technical staff will offer all the necessary support to keep the products at optimal performance.

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