Key Exchange Unit is fully welded to keep out contaminants.

Press Release Summary:

Ergonomic, X-type key exchange unit is configured to trap and release keys in pre-determined sequence, depending on operating requirements of safety interlocking system. Able to have multiple keys entering and/or withdrawing, unit is available in one key to release 3 or 6 keys, 6 keys to release 4, or any other combination. Enclosure is fully welded for optimal rigidity, while locks are located to be rear-mounted and have no visible fixing holes, keeping out dirt or food.

Original Press Release:

New Key Exchange Unit from Castell

Fully welded design reduces potential dirt and food traps

Chicago, Illinois - Key exchange units from industrial safety specialist Castell form part of an integrated safety system linking machine control and access interlocks. Its new X-type key exchange unit has an extremely robust design for reliable use in a wide variety of environments.

The key exchange is configured to trap and release keys in a pre-determined sequence, depending on the operating requirements of the safety interlocking system. The X box can have multiple keys entering and/or withdrawing. It can be supplied in numerous key configurations: one key to release three or six keys to release four, or any combination to suit the operating sequence of the machine.

The new exchange unit design is both ergonomic and durable. The enclosure is fully welded for increased rigidity. Newly designed locks, relocated to be rear mounted, have no visible fixing holes, reducing opportunities for dirt or food to be trapped and interfere with operation. This makes the unit suitable for environments such as the chemical or food and beverage industries, where dirt and food traps are a major issue.

The new unit is fully compatible with previous FS lock types and has identical dimensions to Castell's earlier X-type exchange unit, allowing it to be retrofitted to existing interlocking systems. The unit's new color matches the standard color for electrical enclosures.

For more information about Castell's safety interlocking systems, go to, or call 312-360-1516.

Since the inception of the industrial safety industry, Castell has been a leader in trapped key interlocking technology, developing products that keep pace with the needs of emerging markets and applications in all business sectors. Its products go beyond meeting legislation to create the safest working environments possible. A Halma company, Castell has its US offices in Chicago, Illinois.

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