Contract Electronic Manufacturer
Tel :01480 222480 Email :

Services > PCB Assembly

Working alongside an extensive network of suppliers around the world, our materials and procurement specialists have the knowledge and experience to source the right components at the right time and at the right price.

We carry an extensive range of items in stock, all of which are carefully stored and packed. Moisture sensitive devices are stored in accordance with manufacturer recommendations and are both baked and vacuum sealed or stored in one of our dry stores to ensure that their shelf life is maintained.

In addition to this we offer a range of material management options to our customers with full batch traceability. Management options range from controlling free issued parts through our system to supplying a full kit of parts consisting of PCBs and electronic components through to cables and metal work. By managing your component supply we can reduce your stock holding, material commitment and time spent managing materials.

SMT - Surface Mount

At Union Four we manufacture a broad range of products, varying in volume from prototypes on our dedicated prototype line through to high volume production runs. Read More

PTH Through-Hole and Hand Assembly

Through-hole and Hand Assembly As well as investing heavily in our surface mount capability, we also maintain a well equipped through-hole facility with skilled, IPC trained operators employed to deliver the highest quality product to our customers. Read More

Vapour Phase

In May 2012, an IBL BLC509 Vapour Phase oven was installed to give Union Four the facility to offer its customers a reliable, effective and safe soldering solution for high density, high technology boards. The soft vapour phase process enables various temperature profile adjustments to be made to almost every temperature gradient in order to cover a wide range of demands. Read More

Selective Soldering

Union Four have recently installed an Orissa-Synchrodex line which offers high speed and flexibility; this further enhances our ability to supply customers with high quality product at competitive cost. Read More