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About us

EMS manufacturer since 2009

A company present in the electronics market since 2009. From speed controllers to comprehensive contract manufacturing on two production lines — with an in-house design and engineering department.

  • Started with DC motor speed controllers
  • Expanded to AC motor drive systems
  • Comprehensive contract manufacturing on multiple lines
  • In-house design & engineering department
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2009
founded
2
production lines
17+
years of experience

Our story

Since 2009 we have built the trust of Polish and European manufacturers. We grow to meet the increasing demands of the market.

We are a company present in the electronics market since 2009. Our early operations focused on DC motor speed controllers using analog technology and 8-bit microcontrollers. We then expanded our product and service range with AC motor drive systems, programmable speed controllers, sensors, data acquisition and many other options built to the client's request.

Today our main area of activity is comprehensive contract manufacturing carried out on several automated electronics assembly stations. We want to be a partner for every client — which is why each station handles a different type of order: from prototype assembly, through small and medium series, to large series on our newest machines.

Siltegro team at work - electronics assembly since 2009
Our first THT line — 2018

How we got here

2009–2010

The beginning of Siltegro and the first series production

Siltegro is founded, starting with the design and production of DC motor speed controllers. Just a year later we launch their series production and develop solutions for AC motors.

01
2012–2016

Team growth and design competence

We move the company to larger headquarters, launch our own CNC machining and systematically develop design services. We also start building new headquarters prepared for further growth.

02
2018–2019

SMD production development

We move to the new headquarters and launch a new SMD production line, gaining greater control over the process and the ability to scale production.

03
2021

Higher capacity and ISO 9001

We hand over another production hall and launch new SMD lines, significantly increasing production capacity. Obtaining the ISO 9001 certificate confirms our quality standards.

04
2024–2026

Automation and modern technologies

We invest in automation, quality control and the machine park — AOI 3D, X-ray, laser marking, automatic depaneling. We complete increasingly demanding projects, from prototype to final assembly.

05

People behind every order

Siltegro is a team of several dozen people — engineers, assembly line operators, quality control specialists and customer service staff. Every department has its own standards, but one common goal: the order leaves the floor finished, on time and as per the documentation.

Precision as a standard, not an option

There is no "good enough" — it is either as per the documentation or it is not. An approach that starts with the operator and ends with the finished product.

Clear communication at every stage

Your order has one project manager. We answer questions on the same working day. Current order status is reported — you do not wait for a weekly report.

Responsibility for the whole process

We do not issue an invoice and disappear. If something is wrong — we look for the cause, not excuses. Documentation of every order is stored for up to 10 years.

Our capabilities

We have the technical and organizational potential to carry out complete orders – from the device design, through the prototype, to a running unit from series production.

Siltegro design department - electronic systems design
01 / R&D

Design & Engineering

Full range of services for developing a device concept and design, creating software (firmware and software) and preparing implementation documentation. We design and produce both hardware and software. We create every solution from scratch or develop existing client projects.

02 / EMS

Contract manufacturing

Comprehensive assembly carried out on two production lines — from prototypes, through small and medium series, to large series on the newest line. SMT, THT and mixed assembly, firmware programming, functional tests and final device completion.

03 / QUALITY

Quality control & X-Ray inspection

We run orders as per ISO 9001 and the IPC-A-610 and IPC 7711/7721 standards. AOI inspection (Saki DMG Mori) for every board — offline station after the soldering process. X-Ray inspection for BGA, QFN components and connections invisible to the naked eye — a new X-Ray machine in the Siltegro machine park.

04 / PARTNER

Final assembly & partnership

Completion of the finished device: mounting PCBA into the enclosure; wiring, tests and packaging. A partnership that does not end at shipment — we diagnose and correct defectively designed electronics, and carry out rework and after-sales service.

05 / CLIENT

Client communication at every stage

One dedicated project manager from the first request for quotation to delivery. Current order status reported at every stage of implementation — progress updates without having to ask. We never leave the client without an answer.

Our production floor

The Siltegro production floor is located in Raszczyce at Raciborska 106 a. Under one roof there are: two SMT and THT assembly lines, a CNC machining department, final assembly stations and a quality control laboratory.

  • ✓Pick&place machines — fast, precise SMD component placement
  • ✓AOI 3D inspection system — ongoing control after the soldering process
  • ✓X-Ray inspection — for BGA components and hidden packages
  • ✓Reflow ovens — controlled temperature profile
  • ✓Automatic PCB depanelization — precise panel separation with a vision system
  • ✓Dedicated prototype line — short series without disturbing series production
  • ✓CNC department — housings and mechanical parts
  • ✓3D printer with ESD filament
  • ✓Monitored component warehouse — temperature and humidity control

Certifications & standards

Design, production and assembly are carried out in accordance with ISO 9001, confirming our commitment to the repeatability and safety of every produced module.

✓
ISO 9001:2015

Quality management. Certification covers the whole process: from order intake to shipment of the finished product.

✓
IPC-A-610

The electronics assembly standard applying across the whole line. Production runs per IPC-A-610 — we hold a current certificate, and the operator team is trained to the current version of the standard.

✓
IPC 7711/7721

The standard for the repair and rework of electronic assemblies. Applies in rework and after-sales service processes.

✓
RoHS and REACH

Production compliant with the RoHS and REACH directives. Compliance documentation available for every order.

Continuous team development

The knowledge and competence of the team have a direct impact on the quality of electronics production. That is why we systematically invest in technical training, competence development and new qualifications.

Our employees take part, among others, in:

  • certified IPC-A-610 training,
  • IPC-7711/7721 training and certification for electronics repair and modification,
  • practical training in soldering and electronics assembly standards, delivered by external specialists,
  • technical training related to new machines and production technologies,
  • training in AI and the use of new technologies,
  • training developing the soft and management skills of the leadership team.

Regularly improving the team's qualifications supports process standardization, effective problem solving and the safe introduction of new technologies into production.

Let's meet at trade fairs

We regularly take part in electronics trade fairs — the best place to talk about your project face to face.

TEK.day

Gdańsk 2026

24 September 2026
AmberExpo Gdańsk
gdansk.tekday.pl

Fair website →
Evertiq Expo

Warsaw 2026

22 October 2026
evertiq.pl

Fair website →
SEMICON Europa

Munich 2026

10–13 November 2026
Messe München, Germany
Co-organized with electronica
semiconeuropa.org

Fair website →
SEMICON Europa

Munich 2027

November 2027
Messe München, Germany
productronica.com

Fair website →
Arrange a meeting at a trade fair →

See how we work

A short film showcasing our production and technical capabilities.

Where we are based

Siltegro Sp. z o.o.

ul. Raciborska 106 a
47-435 Raszczyce, Poland

Raszczyce is located in the Rybnik district in Upper Silesia — about 60 km from Katowice, 80 km from Ostrava (CZ) and 100 km from Kraków. A convenient location for clients from southern Poland and the Czech Republic, with access to the A1 and A4 motorways.

Let's get started!

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