Brochure_SelectLine_V2_21 - 第4页

S o l d e r in g t o i t s P e r f e c ti o n The soldering area - heart of SelectLine - scores highly thanks to its outstanding flexibility and precision. The electro-magnetic soldering units with innovative solder nozz…

Fluxing Process with Maximum Precision

Selective soldering systems from SEHO are equipped with a

micro drop jet fluxer that particularly focusses on two points:

Maximum precision and minimum flux consumption.

Several nozzle heads that ensure a defined flux application in

smallest areas can be installed on the high precision xy axis

system.

Thus, throughput can be increased remarkably when proces-

sing symmetric panels. As an alternative, two different flux

types can be used simultaneously, controlled via the software.

Each of the nozzle heads may carry several drop jet nozzles.

This allows to flux multi-row connectors with only one passage.

Flexible Preheat Process

The preheat area of the SelectLine can be configured individu-

ally in length and type. In particular it scores high because of its

energy efficiency.

Individually programmable and controllable quartz heaters or

pulsar heating elements ensure an effective heat transfer to the

PCB bottom side and guarantee very homogeneous heating

even in case of different thermal mass. A touchless pyrometer

can be installed to precisely control the preheat temperature

profile and to allow gradient-controlled heating of the assem-

blies.

If needed, a top side heating can be installed additionally.

Controlled via the software, both preheating systems are

perfectly matched to guarantee reproducible temperature

profiles.

In case of processing high mass assemblies, a convection

module ensures perfect and effective heat transfer with homo-

geneous temperature distribution within the preheat zone.

To constantly keep assemblies on the same temperature level

during long soldering cycles, a top side heating may also be

integrated in the soldering area.

The PLUS of Flexibility and Precision

Time plays a key role in modern electronic production.

With the SelectLine platform, SEHO developed a selective

soldering system that features a revolutionary design. The

SelectLine convinces with highest precision and solder joint

quality as well as a high degree of flexibility: No change-over

is required to dynamically process a variety of assemblies

with short cycle times.

The SelectLine machine concept is consistently modular

thus ensuring clear cost benefits. Several modules with

different dimensions can individually be configurated with

fluxer, preheatings, soldering units, cooling modules,

selective brush system and AOI and, depending on your

requirements, they may be combined to a complete

manufacturing line. Even if the basic configuration should be

designed for stand-alone operation it may be expanded with

additional modules at any time to be used inline.

Absolutely unique is the 100 % process control that is

provided by all selective soldering systems from SEHO.

Innovative Technology for Your Production

S E L E C T L I N E

• Highest flexibility: The modular machine concept

and numerous configuration possibilities allow

adaption to nearly all production requirements.

• Outstanding soldering quality:

Electro-magnetic soldering units for miniwave

processes and multiwave soldering processes.

• Highest production volumes:

Patented SYNCHRO concept.

• Maximum machine availability:

Patented ultrasonic cleaning unit for solder nozzles.

• 100 % process reliability:

Process control from A like AOI to Z like Z height.

• Dynamic precision:

Exact positioning of the work stations with highly

precise axis systems.

• Efficient programming:

Offline Teach Program.

• Fast change-over and maintenance:

Extremely good accessibility.

• Ready for Industry 4.0:

Machine communication software mcServer.

two soldering units per module = maximum volumes on smallest footprint

SEHO fluxer technology and

automatic flux quantity monitoring:

The duo for maximum precision.

top side and bottom side heating in the preheat area

Soldering to its Perfection

The soldering area - heart of SelectLine - scores highly thanks

to its outstanding flexibility and precision.

The electro-magnetic soldering units with innovative solder

nozzles for miniwave and multiwave soldering processes

ensure an efficient energy transfer and thus they guarantee

perfect soldering results.

With the dual solder pot concept Twin-Select the process

management is pushed to highest flexibility. Each soldering

module can be equipped with two electro-magnetic soldering

units that are installed on separate z axes and which can be

programmed fully independently. This allows to permanently

provide two different solder alloys, change-over times are

completely eliminated. Alternatively, the Twin-Select concept

can reduce cycle times substantially if the soldering units are

used with the same alloy, and with solder nozzles having

different diameters.

Maximum throughput requirements are met with the Sychro

concept - patented by SEHO. The Synchro concept is an

intelligent software feature that coordinates the soldering

process for PCBs in such a way that the total throughput is

nearly doubled without the need for significant investment.

Cycle times can be reduced by nearly 50 % in synchro

operation mode.

An automatic ultrasonic cleaning of the solder nozzles definitely

represents another highlight in the soldering area. What

previously had to be made manually and with aggressive

chemicals, now is automatically and environmentally friendly

performed through the machine: The solder nozzles get a

gentle cleaning and they are completely new wetted.

Besides a remarkably longer lifetime of the solder nozzles up to

several months, this unique feature provides additional

benefits: Highest reliability of the process and significant time

savings for you.

multiwave soldering processes ensure shortest cycle times

ultrasonic cleaning of solder nozzles: maximum lifetime

Programming: Easier than Ever Before

Visual intelligent programming. With the graphic offline teach

program from SEHO, creation of soldering programs is

particularly easy and can be made at any PC while the

machine is producing boards.

Basic data can be taken from any digital image file, gerber data

or DXF data. A comfortable wizzard takes the operator through

the programming procedure, default process parameters can

be used with a simple mouse click, or easily be adapted to the

specific application.

After teaching of all solder points, the software automatically

computes the fastest way to minimize handling respectively

processing time. The expected cycle time will be displayed

directly to the operator.

100 % Process Control

The ability to reduce production costs while maintaining a

consistent high quality is essential for electronic productions.

The goal is a zero-fault production, this also from the aspect

that rework processes are expensive and time-consuming,

and often show poor reproducibility. A controlled and reliable

selective soldering process represents the first and most

important step towards a zero-fault production.

Selective soldering systems from SEHO support you with this -

they provide a comprehensive hardware and software

package to control the process sequence 100 %.

¢ automatic position correction using fiducial recognition

and automatic z height correction

¢ monitoring of the fluxer function

¢ automatic flux quantity monitoring system

¢ pyrometer control of preheat temperatures and

gradient-controlled preheat process

¢ monitoring of all heating circuits

¢ wave height monitoring

¢ automatic wave height control

¢ automatic setup control and tool measurement

¢ solder level control and automatic solder wire supply

¢ monitoring of nitrogen quality and nitrogen quantity

¢ process visualization and many more

A selective brush station for automatic cleaning of particular

board areas from solder residues and solder balls can be

implemented after the soldering process.

A zero-fault production turns into reality with the integration of

an AOI system. Here, inspection of the solder joints is made

immediately after the soldering process. Assemblies that have

been detected with a fault, can be removed from the inline

production automatically.

Besides clear cost benefits particularly in terms of floor space

requirements and board handling, evaluation of trend and

series defect information enables early process optimization to

reduce the error rate notably.

Transparent Processes:

Ready for Industry 4.0 with SEHO mcServer

Selective soldering processes can be traced completely with

the machine communication software mcServer.

This software feature allows comprehensive monitoring of the

soldering process. mcServer collects, analyzes and archives

all information about the machine and the process parameters.

With its specific serial number, the entire process for a single

printed circuit board can be traced, for example.

Using appropriate interfaces, the machine can be integrated

into nearly each specific MES/ERP system for superordinate

control of the process.

SEHO cross sensor: automatic wave height control,

setup control and tool measurement

selective brush system

AOI - automated optical inspection