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FermionX Ltd
United Kingdom
Box Build & System Integration: Full product assembly and final packaging
Cables & Wire Harnesses: Custom looms and high-flex industrial cabling
Contract Electronics Manufacturing (EMS): Full-service electronics design, assembly, and box build
Design for Manufacturing (DFM): Optimizing designs to reduce production costs
PCB Assembly (PCBA): SMT and Through-hole electronics assembly

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FermionX Ltd is a UK-based contract electronics manufacturer established on the South Coast with over 50 years of operating history. The company delivers end-to-end electronic manufacturing services (EMS), providing support spanning design for manufacture (DFM), component procurement, surface mount and through-hole PCB assembly, complex box build integration, and logistics fulfillment.

Operating from its manufacturing headquarters in Worthing, FermionX maintains advanced production facilities equipped with three dedicated surface mount technology (SMT) production lines designed for both high speed and manufacturing flexibility. The company serves OEMs operating across demanding commercial and regulated sectors.

Offer

FermionX provides end-to-end contract electronic manufacturing services, including:

  • PCB Assembly: Rapid prototyping and volume PCBA across three SMT lines, conventional through-hole insertion, mixed-technology placement, and automated optical inspection (AOI).
  • Box Build & Final Assembly: Integration of assembled printed circuit boards into custom casings and chassis, sub-assembly installation, wire harness routing, front-panel mounting, pot and encapsulation, and product labelling.
  • Design for Manufacture (DFM): On-site engineering reviews of bills of materials (BOM), tolerance analysis, and manufacturing optimization.
  • Cable & Harness Assembly: Production of discrete wiring looms, connector termination, and cable integration.
  • Testing & Programming: Board-level testing, functional device testing, firmware flashing, and full serialization.
  • Logistics & Fulfilment: Flexible ordering arrangements (spot buy, scheduled delivery, call-off inventory) and end-user distribution.

Tags

dfm
box build
ems
pcb assembly
cable assembly
smt
contract electronics manufacturing
Industrial Specializations: Box Build & System Integration: Full product assembly and final packaging, Cables & Wire Harnesses: Custom looms and high-flex industrial cabling, Contract Electronics Manufacturing (EMS): Full-service electronics design, assembly, and box build, Design for Manufacturing (DFM): Optimizing designs to reduce production costs, and PCB Assembly (PCBA): SMT and Through-hole electronics assembly
Headquarter/main address: Easting Close
Worthing
West Sussex BN14 8HQ
United Kingdom
Get Directions
https://www.fermionx.com
Business Type: Custom Manufacturer
Ownership: Private
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