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Selective Soldering

Top quality from the first circuit board!

No. 2,222 of the successful VERSAFLOW 3 model goes to INOTECH from the Czech Republic

INOTECH electronic s.r.o., based in Kaplice, specializes in the assembly of PCBs for small and medium-sized series, but can also handle the construction of prototypes. With a modern machine park and an experienced team, INOTECH offers its customers services and products at the leading edge of electronics production. In mid-2024, the Czech EMS service provider added an Ersa VERSAFLOW 3/35 selective soldering system to its machine park, which already includes six Ersa systems. For Ersa, this is the 2,222nd machine installed in the successful third generation of machines.

The EMS service provider INOTECH electronic s.r.o. can already look back on 30 years of company history. Shortly after the company was founded in 1994, a business partner from Germany enquired whether INOTECH would also manufacture electro-inductive components. They went into business. This was the basis for today´s medium-sized company with 100 employees, which produces a wide range of PCBs for customers from various sectors, such as automotive, smart home and medical technology. Injection molding technology is also part of the production process at INOTECH, meaning that plastic products including packaging can be manufactured in addition to electronic assemblies. This is an invaluable advantage for customers, as INOTECH can become a general contractor for electronics production. For example, INOTECH produces remote controls on a large scale for the leading manufacturer of remote controls – here in Kaplice, 30 km south of Budweis, 20,000 units are produced every day. Electronics and housings are manufactured, “married” and packaged ready for dispatch at the company. That makes 20,000 PCBs a day and 11 million components to be assembled every month. “We can already make an adjustment to our processes during the initial assembly and then offer the associated series production, so that the customer only needs one contact to realize their product,” says engineer Pavel Goldfinger, Managing Director of INOTECH electronic since 2004.

Handover no. 2,222 to INOTECH electronic (from right): Managing Director Pavel Goldfinger, owner Karel Mach and Production Manager Michal Mikes with Ersa General Sales Manager Rainer Krauss
Handover no. 2,222 to INOTECH electronic (from right): Managing Director Pavel Goldfinger, owner Karel Mach and Production Manager Michal Mikes with Ersa General Sales Manager Rainer Krauss
Production Manager Michal Mikes (right) and Ersa Sales Manager Rainer Krauss apply the anniversary label to the VERSAFLOW 3/35 with their own hands
Production Manager Michal Mikes (right) and Ersa Sales Manager Rainer Krauss apply the anniversary label to the VERSAFLOW 3/35 with their own hands

Selective soldering – expanding flexibility

The INOTECH team with its latest machine - with PBT representative Michal Duda (2nd from left) and Ersa colleagues Laura Schulz (3rd from left), Rainer Krauss (4th from right) and Radek Lauer (right)
The INOTECH team with its latest machine - with PBT representative Michal Duda (2nd from left) and Ersa colleagues Laura Schulz (3rd from left), Rainer Krauss (4th from right) and Radek Lauer (right)

Increasingly, there are also projects with smaller batch sizes and special requirements for the soldering process – especially in the Czech Republic. “With the VERSAFLOW 3/35 selective soldering system, we have found the perfect addition to our machine park to also realize prototypes and smaller batch sizes. This has already enabled us to win several projects with Czech customers. Another example is an eight-layer curved circuit board for a German camper van manufacturer, which ensures the vehicle´s solar power supply – that works perfectly on the VERSAFLOW 3/35. We´re talking about 1,500 assemblies here, so a relatively small number of units,” says INOTECH Production Manager Michal Mikeš. Ersa General Sales Director Rainer Krauss adds: “The advantage of selective soldering is the high flexibility and that you can simply stay longer in a place with more copper or where holes are difficult to reach and thus achieve first-class penetration without using a mask. The fact that this technology is a worldwide success model is proven by the serial number 2,222 that has now been reached – it´s great that this machine was delivered to INOTECH, where six other Ersa systems are already in use!”

The VERSAFLOW 3/35 inline selective system offers maximum flexibility and maximum throughput with minimum space requirements (L x W x H: 2,450/1,750/1,650) at an attractive price
The VERSAFLOW 3/35 inline selective system offers maximum flexibility and maximum throughput with minimum space requirements (L x W x H: 2,450/1,750/1,650) at an attractive price

Highest throughput with the smallest footprint

The topic of selective soldering and VERSAFLOW 3/35 was carefully tested using benchmarks – because the INOTECH team wants to ensure that the products ordered from the Czech EMS service provider can be produced in the required quality. This involved extensive tests at the Ersa Demo Center in Wertheim – the Czech engineers´ eyes lit up right from the first runs. Test PCB 01: successful, zero rejects! INOTECH was impressed by the modular design of the VERSAFLOW systems, which includes an option for an additional solder pot – allowing cycle times to be shortened and productivity to be significantly increased if required.

View of the INOTECH electronics production with Ersa reflow soldering systems type HOTFLOW 4/14, which is installed three times at the Kaplice site
View of the INOTECH electronics production with Ersa reflow soldering systems type HOTFLOW 4/14, which is installed three times at the Kaplice site

Seven Soldering Systems from Ersa

For INOTECH and Ersa, this is another milestone in the cooperation that began with numerous Ersa soldering stations and tools and entered the Ersa machine world in 2006 – with an N-WAVE 330 soldering system which is still in operation. This was followed by two VERSAPRINT 2 stencil printers, three HOTFLOW 4/14 reflow soldering systems and now, as the seventh system, the VERSAFLOW 3/35. “Of course, Ersa builds excellent machines, but that would be nothing without the right service. We get this service – either directly from Ersa in Germany or from the Czech distributor PBT Rožnov. I would like to thank everyone involved for the excellent cooperation in the past and look forward to upcoming projects,” said engineer Karel Mach, owner of INOTECH electronic s.r.o., at the farewell.

 
 

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