A complementary range of services for projects that require stability and scale
We offer all key EMS processes: technical support, component sourcing, SMT assembly, THT assembly, testing, mechanical assembly, and automated electronic protection (coating and potting).
All processes are integrated through an internal ERP system,
ensuring full identification, traceability and process documentation. We don’t just talk about quality - we show the data.
successful audits are no coincidence, but the result of clearly defined procedures and consistent technological and quality supervision.
How
we work
Scope of services, project flexibility, technological readiness, and delivery predictability are the four elements that define how TSTRONIC operates.
Scope of services
A comprehensive in-house EMS process: from component sourcing, through SMT, THT, mechanical assembly, and testing, to coating, potting, packaging, and final delivery to the client. Full control and traceability supported by our ERP system.
Flexibility and scalability
From prototypes to series production, with one dedicated account manager and an assigned team.We support projects of varying complexity and volume. Our capacity adapts to your strategy: short runs, High-Mix Low-Volume, or mass production.
Technological readiness
Infrastructure that enables rather than limits. 3 SMT lines (ASM), 4 THT lines, over 100 manual assembly workstations, and more than 6,000 m² of operational space. The capacity to run multiple projects in parallel without scheduling conflicts.
Time and predictability
We combine the stability of long-term commitments with the flexibility to react quickly to demand changes. Demand forecasting allows us to build predictable schedules, while dynamic production capacity management ensures we always meet our clients’ current needs.
EMS from A to Z
We carry out all key stages of the EMS project while ensuring full transparency
Component sourcing
Full cost transparency, optimisation of prices and lead times (LT)
SMT
ASM pick & place lines, SPI, 3D AOI, full traceability
THT
Wave soldering and selective soldering
Testy
ICT, AOI, X-Ray, FCT
Coating & potting
Automated electronic protection
Mechanical assembly
Box building, complete integration of components into finished devices
SMT Assembly
TSTRONIC has three SMT assembly lines with the following specifications.
➔ ASYS BLO 03 automatic PCB feeder
➔ PCB cleaning system – Teknek
➔ DEK Horizon 03iX screen printer
➔ KOH YOUNG KY8030-2 automatic solder paste inspection (SPI) system
➔ ASYS TRM 01 PCB transporter
➔ SIPLACE SX 2 Pick & Place machine (2×CPP)
➔ SIPLACE SX 1 Pick & Place machine (1×CPP)
➔ SIPLACE SX 2 + WPC Pick & Place machine (1×CPP, 1×TH)
➔ ASYS TRM 02 PCB transporter
➔ Vitronics Soltec MR 933+ reflow soldering oven
➔ ASYS TRM 02 PCB transporter
➔ PERUN multifunction buffer
➔ KOH YOUNG Zenith 3D automatic optical inspection (AOI) system
➔ Nordson YesTech YTV-FX automatic optical inspection (AOI) system
➔ Nutek NTM530WSL-1500-3 verification station
➔ ASYS BUL 03 automatic PCB receiver
➔ ASYS AES03D automatic PCB feeder
➔ DEK Horizon 03i screen printer
➔ KOH YOUNG KY8030-2 automatic solder paste inspection (SPI) system
➔ ASYS TRM 01 PCB transporter
➔ SIPLACE G2 automatic glue dispenser
➔ SIPLACE SX 2 Pick & Place machine (2×CPP)
➔ SIPLACE SX 1 Pick & Place machine (1×CPP)
➔ SIPLACE SX 2 + WPC Pick & Place machine (1×CPP, 1×TH)
➔ ASYS TRM 02 PCB transporter
➔ ERSA HotFlow 2/14 ASP reflow soldering oven
➔ ASYS TRM 02 PCB transporter
➔ PERUN multifunction buffer
➔ KOH YOUNG Zenith 3D automatic optical inspection (AOI) system
➔ Nordson YesTech YTV-FX automatic optical inspection (AOI) system
➔ Nutek NTM530WSL-1500-3 verification station
➔ ASYS AMS 03D automatic PCB receiver
➔ ASYS BLO 03 automatic PCB feeder
➔ DEK Horizon 03i screen printer
➔ KOH YOUNG KY8030-2 automatic solder paste inspection (SPI) system
➔ SIPLACE SX2 Pick & Place machine (2×CPP)
➔ SIPLACE SX1 Pick & Place machine (1×CPP)
➔ SIPLACE SX2 + WPC 6 Pick & Place machine (1×CPP, 1×TH)
➔ ASYS BCO 02 PCB transporter
➔ ERSA HotFlow 2/14 ASP reflow soldering oven
➔ ASYS TRM 03 PCB transporter
➔ KOH YOUNG Zenith 3D automatic optical inspection (AOI) system
➔ Nutek NTM530WSL-1500-3 verification station
➔ ASYS BUL 03 automatic PCB receiver
Procurement
of components
➔
We work only with trusted suppliers. With an internal process of control and scoring.
➔
Sourcing risk analysis – alternative MPNs, lead time, availability, supply chain stability.
➔
BOM cost optimisation.
➔
Full cost transparency (Open BOM).
➔
Purchasing team experienced in high-responsibility projects: automotive, medtech, industry.
➔
Own EMS-dedicated ERP system – order, fulfilment, and delivery process visible in real time.
SMT
you can rely on
➔
3 Modern SMT lines from ASM, full automation, ERP integration, and real-time quality control.
➔
Fully automated inspection system (X-ray, 3D AOI, SPI)
➔
Full traceability – every component, every board, every batch recorded in the ERP system.
➔
Tools, machines, and consumables only from renowned manufacturers (e.g. ASM, ERSA, KOKI, Weller, PVA, Asymtek, KOH YOUNG, ASYS, KOLB).
➔
Ready for series and prototype production – the same quality and repeatability regardless of volume.
➔
SPI (Solder Paste Inspection) – solder paste inspection before assembly eliminates errors at the very first stage.
➔
AOI (Automatic Optical Inspection) – full optical control after assembly, on every line, in real time.
➔
X-ray – verification of connections not visible optically, e.g. BGA, QFN.
➔
Short changeover times – enabling flexible production planning, even for short series (HMLV).
Our SMT lines ensure the highest quality of surface-mount assembly - designed for companies that value reliability, repeatability, and on-time delivery.
THT
➔
4 THT lines and over 100 workstations – high throughput and flexibility.
➔
2 wave soldering machines with 4 assembly lines – enabling the parallel execution of multiple orders.
➔
2 independent selective soldering machines
➔
THT fully integrated with other processes – creating a coherent, technologically supervised workflow.
➔
Optical inspection of every board after the THT process
➔
Traceability in through-hole assembly – tracking components, batches, and operations throughout the THT process.
➔
Experience in assembling demanding components with large dimensions and non-standard shapes.
We carry out THT assembly using both wave and selective soldering technologies, allowing us to combine high efficiency with flexibility in technology choice. The process is seamlessly integrated with SMT assembly, delivering repeatability, flexibility, and high performance in your projects.
Testing, programming
➔
Inline SPI – built-in optical inspection after assembly on every SMT line.
➔
Inline 3D AOI – solder paste inspection before assembly, eliminating errors at the entry stage.
➔
X-Ray – verification of connections not visible optically, e.g. BGA.
➔
ICT (In-Circuit Test) – electrical testing of the board, detecting shorts, breaks, and soldering defects.
➔
FCT (Functional Circuit Test) – final functional testing of the device.
➔
In-house tester design and construction.
➔
Full programming coverage for boards and ICs in all technologies.
➔
Experience in advanced programming processes (encrypted programming, server-based client programming, using custom adapters).
Thanks to advanced testing and full integration with the traceability system, we ensure quality control at every stage - from solder paste to the finished product, with results that speak for themselves.
Coatning
& potting
➔
Fully automated electronic protection.
➔
Repeatability, accuracy, and coating durability.
➔
Process fully integrated with the ERP system and complete traceability.
➔
Coating carried out fully automatically – coating line with a curing oven.
Coating at TSTRONIC is an automated, precise, and flexible process that effectively protects electronics and perfectly meets the requirements of modern production.
Mechanical
Assembly
➔
Comprehensive integration of electronics with the enclosure - with full responsibility for the finished product.
➔
An assembly team experienced in complex systems - we don’t just put parts together.
➔
Finished-goods quality control- not only subassembly, but also final tests, inspections, and validations.
➔
Single point of responsibility, single tracking, one system - traceability covers the entire product, not just the PCB.
BOX
Building
➔
Comprehensive Box Build execution – from PCB assembly to complete product assembly, in accordance with customer documentation and final requirements.
➔
Configuration flexibility – handling different variants, product versions, as well as mechanical components, cables, panels, and enclosures.
➔
Integration of functional and final testing – ensuring device performance and compliance before delivery to the end customer.
➔
Management of mechanical and electrical components – sourcing, quality control, traceability, and cost optimisation.
➔
Experience in final logistics – preparation for shipment, labelling, packaging according to customer guidelines, including consignment stock or just-in-time handling.
➔
Full process transparency – ERP system integration, status reporting, material and cost control.
