5 Things to Consider for Box Build Assembly Process

Box-build, which is also referred to as systems integration, is an assembly work other than a printed circuit board (PCB) production. It is an electromechanical assembly process, which includes enclosure fabrication, installation and routing of cabling or wire harnesses, and installation of sub-assemblies and components. The box build can mean a PCB Assembly (PCBA) in a big cabinet full of wires, or a small enclosure, or a complex fully integrated electro-mechanical system with pneumatics and electronics.

What does the Box Build Assembly Services Include?

Box Build Assembly Services include:

  • System Level Assembly
  • Product Assembly
  • Sub-Level Product Assembly
  • Packaging & Labeling
  • Testing
  • Software Loading and Product Configuration
  • Aftermarket Service and Depot Repair of EIT Built Products
  • Warehousing, Order Fulfillment, and Traceability

Things to Consider for Box Build Assembly Process

If you are considering a box build assembly process in the near feature, following are some of the factors that you should keep in mind. You can support the assembly services provider by providing the following information.

  • Bill of Materials (BOM): This is a very important requirement for any Electronic Manufacturing Services (EMS) provider. This helps them get an idea of all the key components, and is required to clearly mention the materials to be sourced by the EMS provider. It should also explain appropriately, what will be issued free from you. You should decide whether you want to define the smaller items, such as tie wraps, adhesives, nuts and bolts, heat shrink, washers, and so on. The same is applicable for wires and their identifiers. While these are considered as consumables, you should always remember that they still have a price and need buying. Thus, they must be defined to avoid unexpected production delays and cost boosters.
  • Assembly: If possible, you should provide 3D CAD models. This helps to visualize the final product. There are a number of CAD packages that offer free drawing viewers. Many advanced EMS providers possess CAD packages that enable easy conversion of drawings into build instructions, as well as updates, if needed. A layout drawing with the information of key components should be included.
  • Sample Unit: A sample unit is always helpful, and can be the key source of data if the drawings are unfinished. In this situation, you will certainly need a provider that can plan and create the drawings for you to guarantee reliable builds.
  • Dimensions: You should always inform the EMS provider about the size and weight of the unit. This is essential not only for shipping, but also handling and storage throughout the complete build process. You should also consider and decide how you need the completed product to be packed and transported.
  • Testing: In case of electrical systems, you should specify basic electrical safety testing, such as earth bond and flash tests. Are you willing to perform certain functional testing, or factory acceptance testing prior to shipment to an end customer? Or just the visual inspection sufficient? To answer these questions, you should take advice from EMS provider if necessary, as they will have the proper knowledge and good experience of what works best.

Whether your design needs a simple, straightforward box build assembly or a more complex assembly, providing the precise data up front. It makes sure that you get to start from a good place where everyone knows what is required.