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EMS electronics manufacturer · Warsaw · since 1991
Contract electronics manufacturing. From design to finished device.
Electronics manufacturing to order for companies that need a dependable supplier: we design, assemble and test electronic devices. We take over the whole process, from PCBs and components through SMD and THT assembly to testing, enclosures and packaging. You focus on developing your product; we look after the manufacturing and the deadlines.
- Over 35 years in the EMS industry
- Yamaha SMD lines and AOI inspection
- Full traceability in ERP
- Electronics manufacturing in Poland, in Warsaw
1991
year production started
35+
years of experience in electronics manufacturing
12
production stages under one roof
8
industries in regular production
Scope of electronics manufacturing services
Every stage of electronics manufacturing in one place
One project to commission, one supplier to settle with. Contract electronics manufacturing at Convel covers the full set of services, so you avoid the cost of coordinating several subcontractors and get your product to market sooner.
Electronic device design
- Design of electronic devices and modules
- Documentation review for series production (DFM)
- Cost optimisation and component selection
PCB manufacturing and components
- Manufacturing and stocking of printed circuit boards
- Component sourcing, including hard-to-find parts
- Supply planning and continuity for your orders
SMD and THT assembly
- SMD assembly on Yamaha pick&place machines, 0402/0201 parts and BGA
- THT assembly: wave soldering and selective wave
- Mechanical assembly and custom jobs
AOI inspection and quality control
- Automated optical inspection of every batch
- Inspection logged in the production system
- Component and batch traceability in ERP
Firmware and functional testing
- Embedded software for STM32, AVR, Nordic and ESP32
- In-line device programming
- Functional test of every unit against the specification
Final assembly and packaging
- Enclosure assembly, display and keypad integration
- Labelling, barcodes and serial numbers
- Products packed and ready for sale
Yamaha · Heller · ERSAindustrial-grade machine park
Technology and machine park
Specific equipment, not generalities. This is what we assemble your electronic devices on
For well over a decade we have run SMD electronics assembly exclusively on Yamaha pick&place machines. That guarantees precision and repeatability for prototype runs and volume production alike.
- Yamaha, Heller and ERSA SMD lines flexible changeovers for short and long runs
- Automated optical inspection (AOI) MEK / Marantz after every assembly run
- ERSA wave soldering and EBSO selective wave for THT assembly
- ERP system with full traceability of components, batches and processes
From enquiry to delivery in five predictable steps
You know what is happening with your project at every stage. Clear arrangements and production measured against deadlines.
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Enquiry and quotation
You send the documentation: BOM, Gerber files and planned quantities. We prepare a specific manufacturing quote and a schedule.
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Design review
We check the design for series production. We advise on changes that lower costs and improve reliability.
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Components and PCBs
We order the parts and boards and keep supply continuous. Larger PCB batches are stocked for your next orders.
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Assembly and inspection
SMD and THT electronics assembly on Yamaha lines, followed by AOI inspection and quality control logged in the system.
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Testing and delivery
We program the devices, run functional tests, fit them into enclosures and deliver a product ready for sale.
Experience in electronics manufacturing
Devices that have been coming off our lines for years
Since 1991 we have manufactured electronics to order for companies in eight industries. Among the products coming off our lines:
- GPS, Bluetooth and Wi-Fi devices
- vehicle trackers and fleet monitoring
- medical and industrial controllers
- boards for gas detectors
- industrial recorders and regulators
- utility and energy control systems
- anti-theft security devices
- industrial automation modules
8 industriesserved regularly in production
Why Convel
What you gain by moving your electronics production to us
We do not promise everything. We deliver the four things that matter most in contract electronics manufacturing.
- Deadlines you can budget around
- We deliver on the agreed dates and secure component supply well in advance. Your sales never wait for production.
- Quality backed by process
- AOI inspection, logged quality control and batch traceability in ERP. You know what was assembled, when, and from which parts.
- A partner, not an anonymous subcontractor
- You talk to people who know your project. We recommend design changes and act before a problem reaches the line.
- The whole process under one roof
- From design and PCBs to testing and packaging. Fewer subcontractors means less risk, faster time to market and a single accountable supplier.
Questions and answers
Before you outsource electronics manufacturing
Answers to the questions contract manufacturing customers ask us most often.
What is contract electronics manufacturing (EMS)?
It is a model in which the company that owns a product outsources its manufacturing to a specialised producer: electronics manufacturing to order, in short. An EMS company (Electronics Manufacturing Services) such as Convel supplies the boards and components, assembles the electronics in SMD and THT technology, tests the devices and prepares them for sale. You keep the design, the brand and the customers; the manufacturer takes on production, the machine park and quality control.
What is the minimum order quantity (MOQ)?
We handle high-volume production as well as smaller runs and prototype batches. Batch size and unit costs are agreed at the quotation stage.
Do you also manufacture electronics to order for small companies and start-ups?
Yes. Electronics manufacturing to order at Convel often starts with a pilot run of a few dozen units, after which we plan the actual production together with the customer. We also help tidy up the documentation if the design was created outside a series-production environment.
What should I prepare for an assembly quote?
We can quote fastest when you send the bill of materials (BOM), Gerber production files, assembly documentation and the planned batch sizes. If the documentation is incomplete, we will help you complete it.
What is the difference between SMD and SMT assembly?
In practice, none. SMT is the name of the surface-mount technology; SMD is the name of the components made for it. Both terms describe the same service, which at Convel we carry out on Yamaha pick&place machines with AOI inspection of every batch.
Do you do SMD and THT assembly on the same board?
Yes, that is the most common case. The board first goes through the SMD line, then to through-hole assembly stations with wave or selective-wave soldering. Both stages take place on one shop floor, without shipping boards between plants.
Do you supply electronic components?
Yes. Thanks to long-standing relationships with distributors we supply the full range of components, including niche and hard-to-find parts. We match the component supply model to the specifics of the project.
How do you ensure assembly quality?
Every board goes through quality control after assembly, including automated optical inspection (AOI). The inspection process is logged in the production management system, and the ERP system provides full traceability of components and batches.
Will you help refine the design before series production?
Yes. We review documentation and prototypes for series production, advise on component selection and propose design changes that lower costs and improve device reliability.
Do you handle complete device assembly, not just PCBs?
Yes. We fit PCBs into enclosures, integrate displays and keypads, program the devices, run functional tests, label and package the products. Devices can leave our plant ready for sale.
Where do you manufacture, and can we visit the plant?
All production takes place at our plant in Warsaw, at Kopijników 75A. You are welcome to see the shop floor and the machine park once a visit has been arranged.
Knowledge base
First-hand knowledge of electronics manufacturing
We write about what we know from the shop floor: electronics assembly technologies, preparing designs for production and working with a contract manufacturer.
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Move your electronics production to Convel
Sound familiar from your current supplier?
- Assembly quality is a gamble, and the complaints land on your desk
- Delivery dates slip without warning
- Your supplier goes quiet the moment a problem appears
We will build your electronic devices to the agreed standards and on the agreed date. Send us the documentation and we will prepare a quote and propose a production schedule.
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