Testing & Assembly

Both Walter Frank and Francis W Birkett have extensive history of adding value to the product or service via our assembly processes.

Our assembly operations are managed in a stand-alone production cell and supported by our electronic MRP system. The electronic MRP system has had bespoke modification applied to it to enable us to launch unique bills of materials that interact at various levels of the manufacturing process. This can be as simple as having 1 “tier” for a given component where the customer only requires X to meet with Y. However, it can also be applied to very detailed bill of material explosions over multiple levels comprising +20 individual items coming together ultimately to provide the final product.

This complexity can only be supported by our industry leading manufacturing platform, which is able to offer sand castings, centrifugal castings, die castings, shell castings, bought in castings / bar / stampings released into conventional or CNC machining centres and then brought together by warehouse operations into the assembly centre. In the assembly centre highly defined SOP’s are utilised to bring components together along with painting, plating, polishing, degreasing, pressure testing, NDE, packing and certification.

Testing is often based on non-destructive examination by utilising dye penetrant or radiographic procedures. A great deal of our product is supplied into applications requiring PED approval therefore a large proportion of our testing involves hydrostatic testing from a few bar up to very high pressure. Our testing procedures are supplemented by detailed certification requirements from the foundry / mill. Witness testing during all or part of the process is easily accommodated. A key indication of our control and expertise is that our manufacturing, assembly and testing processes have been FM approved.


Click to view Walter Frank/FWB FM approval


Click to view FWB/Walter Frank Machine Shop Capacity List