Prüfrex – Performance in EMS

NEEDS-ORIENTED
ELECTRONICS PRODUCTION

PX EMS

We are there for your EMS tasks with the most modern manufacture and testing technology.

Highly flexible high-end circuit board assembly, made in Germany and the USA. Automated manufacture and testing technology alongside top manufacturing organisation are our answer to the ever growing complexity of EMS requirements today. You can profit from our immediately scalable production solutions for practically every place of deployment – everything from one supplier in top quality and at attractive prices.

Short time-to-market cycles

Short time-to-market cycles

Small, medium and large series

Small, medium and large series

Material procurement and rapid delivery worldwide

Material procurement and rapid delivery worldwide

SMD MANUFACTURE

Our production facilities are fully up to date. Thanks to the adjustable design of our lines, we can easily implement special solutions.

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3D soldering paste inspection

– 3D-SPI solutions on every SMT line

– Shadow-free 3D measurement

– Closed-loop software for template printer and 3D-AOI

– In use: 8030-2C / Koh Young

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Reflow soldering technology

– Efficient reflow convection soldering processes

– Soldering processes under protective gas atmosphere

– The highest process stability

– Minimisation of thermal loads

– In use: VXP+ N2 3500 / Rehm Thermal Systems

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Dispensing technology

– High process security even where there are temperature & viscosity deviations

– Optimal dispensing results in the critical starting & stopping range

– In use: PR1750 / Datron & WRa500OPT / Globaco

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Rework system

– Unsoldering, placement & soldering of surface-mounted components of all kinds

– Placement accuracy to +/- 25 μm

– In use: Reworksystem HR 500 / Ersa

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Cleaning

– Automatic single-chamber dipping plant with perlator effect

– Cleaning of soldering frames, equipment, oven components & filters (condensate traps)

– In use: CL830 and IR6002 Systronic / Miele

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Stencil printing

– The latest template soldering paste printers

– 3D paste inspection

– Secure placement of the tiniest parts

– In use: NeoHorizon 03iX / DEK

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SMT mounting

– Scalable quantities

– Siplace mounting plants by ASM in use

– Choice of SMT forms 01005 to 2220

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Automatic optical inspection (AOI)

– 100 % inline testing

– Linking of the results of 3D-SPI with 3D-AOI system

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Inline programming

– Test & programming service

– Secure & precise contacts

– High pin density & design for individual later upgrades

– Flexible choice of programs almost right up to the start of production

– On PRÜFREX production lines or in your in-house final assembly

– In use: Rapido RPS910 / Göpel Elektronic

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Depanelling machine

– With sawing and milling functions incl. Schnaidt matrix system

– Dust extraction & 2D barcode detection

– Higher-level database connection

– In use: Depanelling machine SAR 1300 / Schunk

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X-ray component counter

– Automated, exact & rapid counting of components up to shape 01005

– X-ray of components incl. separate evaluation possible

– In use: Hawkeye 1000 / Tech Valley

COMPONENT ASSEMBLY

Whether an individual circuit board or full-scale, demanding device assembly – PRÜFREX will manufacture your products to your individual specifications and quality guidelines.

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Soldering technology

– Selective, reflow or laser soldering

– Manual soldering or soldering with Cobot support

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Wave soldering

– Soldering carried out under nitrogen

– Infrared pre-heating zones with upper heating & temperature monitoring

– Fluxer area with external module incl. fluxing agent quantity monitoring

– 2-nozzle soldering module, residual oxygen measurement

– In use: Wave soldering plant MWS2340-LRT / Seho

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Assembly lines

– Fully automated plants for mass production requirements

– Economic, on-deadline & highly efficient component assembly

– In use: Aumann AG & Marsili plants

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Robot assembly

– Assembly & programming

– Use with soldering irons with tin feed

– Automatic insertion of the modules in preliminary and final testing apparatus

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Manual assembly

– Assembly of housings using hand-lever presses

– Insertion of core types

– Bending of stop plugs by hydraulic press and much more.

POTTING

Securely protecting your sensitive electronics against damp, thermal loads, chemical, corrosive or mechanical influences. Potting is part of the PRÜFREX core competences.

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PU and EP potting

– Fully automated potting plants

– Polyurethane casting resin (PU)

– Epoxy resin (EP) to UL standard

– 2-component potting with & without vacuum

– In use: Scheugenpflug, Hübers & bdtronic

TESTS AND INSPECTION

Depending on the requirements, we can verify each individual production stage specifically. Efficient inspection strategies and final functional tests are a fixed component of our quality management system.

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Initial and final testing

– Individual test systems with pin adapters

– Functional tests with all current measurements, of AC/DC, periods or pulse widths

– Mechanical measurement of rotary motions, angular velocity, rpm or torque

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Assembly and final testing of ignition units

– Automated feed of cores and component assembly, assembly testing

– FCT with increased voltage labelling of OK parts

– Shift-accurate date codes

– Assignment of OK and n.OK parts

– Continuity & temperature testing of assemblies

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Flying probe test

– Mechanism with four heads & six flying probes and detection of the polarity of condensers, plugs & ICs

– For scenarios with high mixing & low batch sizes

– Rapid adjustment possible if the PCB design changes during the design process

– In use: APT-1400F / Takaya

WINDING TECHNOLOGY

Our fully automated winding centres for fine and self-bonding wire make us the perfect partner for your comprehensive tasks. Our coils are tinned with lead-free coatings (RoHS).

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Air coil winding technology

– Processing of air coils with wire thickness from 0.06 to 1.1 millimetre

– Two-wire winding technology & high-temperature soldering bath

– Self-supporting with self-bonding wire

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Pin insertion

– Automatic pin feed

– Pin variants from 0.64 mm to 0.71 mm

– In use: Autosplice & SM contact

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Multiple spindle fine wire winding technology

– Automated high-speed winding (0.045 mm to 0.71 mm)

– Secondary coil & charging coil winding machines

– In use: Marsilli

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Cable construction

– Automated work processes

– Cutting of the ignition lead, up to 3x bending of the contact

– Pressing of the contact pin into the dome

– Processing of cable lengths from 124 mm to 350 mm

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Coil assembly

– Automated work stages

– Feed-in of partially assembled components & workpiece holders

– Placement and removal of eight mandrels

– Multiple material provision via vibrating platform

– Visual determination of coordinate parameters

–In use: Universal Robots, 3-axis vibration technology FlexCube 380 & SmartSight

“We will be happy to help you with our scalable production solutions from large to small series. I look forward to your request!”

Dipl.-Ing. Martin Zappe, Director Sales Division