Development and manufacture of ISO-compliant testing devices for toothbrushes, dental materials, dental instruments and spectacles.
JWE GmbH
EschbornNew on Amplifa
About JWE GmbH
JWE GmbH, based in Eschborn, specializes in the development and manufacture of testing devices and test systems according to ISO standards. Its fields of business are industrial measurement and automation technology, in particular test equipment for toothbrushes and interdental brushes, dental materials and instruments as well as spectacle frames. The portfolio includes series products such as fatigue test rigs according to ISO 20126, brushing machines for dentin abrasion according to DIN EN ISO 11609, film thickness measuring devices according to ISO 4049/ISO 9917 as well as brittleness testing devices for root canal filling points according to ISO 6877. In addition, the company develops customer-specific, fully automated test rigs for functional and endurance testing – from requirements specification through 3D-CAD design in PTC Creo and software development with LabView and PLC/Codesys to CE marking, qualification and maintenance. Mechanical manufacturing of components is carried out by partner companies; design, electronics, software, commissioning and documentation come from in-house. References include companies and institutes such as Fraunhofer, Fresenius Medical Care, Procter & Gamble, Unilever, ZEISS Vision Care and Colgate, in particular from the oral care, dental and spectacle optics sectors. Delivery is DAP worldwide.
- Site
- Eschborn
- Processes
- Stiffness / bending strength of the tufted surface (DIN EN ISO 22254 / ISO 8627), Tuft extraction test / tuft retention test ISO 20126 5.4, Fracture impact test / impact test ISO 20126 5.5, Spring hammer test, Image capture of removed dental plaque / image analysis of stain removal, Drying of artificial dental plaque / staining test apparatus, Filament wear test / wear-scrub test, Test device for quantification of dentin abrasion by toothbrushes ISO 14569-1
- Materials
- 3D-CAD design (PTC Creo/Pro-E), LabView software development, PLC control (Codesys), Measurement cards and drives (National Instruments, SABO)
- Certificates
- CE marking / risk analysis ISO 12100, Safety standard ISO 13849 (PL 4/e), DAkks calibration, ISO 9001
- Industries
- Oral care, Dental materials and instruments, Spectacle optics, Medical technology, Consumer goods, Materials testing
- 01
Requirements specification
- 02
Concept/functional specification
- 03
3D-CAD design (PTC Creo)
- 04
Engineering of electronics, sensors, drives
- 05
Software development (LabView, PLC/Codesys)
- 06
Manufacture of components by partners
- 07
Commissioning, CE marking, handover
- 08
Qualification, validation, maintenance and calibration
Processes and Standards
3D-CAD design (PTC Creo/Pro-E)
Design of mechanical components including motion simulation and integration of the customer product.
LabView software development
Acquisition of physical parameters, image processing and control of actuators.
PLC control (Codesys)
Cost-efficient control of test equipment with touch-screen/HMI operation.
Measurement cards and drives (National Instruments, SABO)
Drive components and measurement cards for required measuring ranges and accuracy.
Site
Eschborn
DEHead office with development, design and sales
- Fatigue test rig ISO 20126 5.6, 8 stations (305-020)
- Brushing machine for plaque removal/dentin abrasion ISO 11609, 8 test stations (311-010)
- Film thickness measuring device ISO 4049/ISO 9917 (425-010)
- Brittleness testing device for root canal filling points ISO 6877 (540-010)
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Stiffness / bending strength of the tufted surface (DIN EN ISO 22254 / ISO 8627)Testing | – | – | – | – | Toothbrushes (manual toothbrushes) |
| Tuft extraction test / tuft retention test ISO 20126 5.4Testing | – | – | – | – | Toothbrushes |
| Fracture impact test / impact test ISO 20126 5.5Testing | – | – | – | – | Toothbrushes |
| Testing | – | – | – | – | Toothbrushes (including electric toothbrushes) |
| Spring hammer testTesting | – | – | – | – | Toothbrushes |
| Testing | – | – | – | – | Interdental brushes |
| Image capture of removed dental plaque / image analysis of stain removalTesting | – | – | – | – | – |
| Testing | – | – | – | – | Toothpaste/dentin samples, toothbrushes |
| Drying of artificial dental plaque / staining test apparatusTesting | – | – | – | – | – |
| Filament wear test / wear-scrub testTesting | – | – | – | – | Filaments |
| Test device for quantification of dentin abrasion by toothbrushes ISO 14569-1Testing | – | – | – | – | Dentin |
| Thermocycling test / temperature cycling test for dental implantsTesting | – | – | – | – | Dental implants |
| Film thickness measurement ISO 4049 7.5 / ISO 9917 (accuracy 0.001 mm)Testing | 0.001 mm | – | – | – | polymer-based restorative materials, water-based cements |
| Testing of consistency and deformation under pressure (manual/auto)Testing | – | – | – | – | dental materials |
| Testing of elastic recovery after deformation (manual/auto)Testing | – | – | – | – | dental materials |
| Denture adhesives / measurement of denture adhesion force ISO 10873Testing | – | – | – | – | Denture adhesives |
| Torsion test for dental root canal instruments ISO 3630 7.4Testing | – | – | – | – | Root canal instruments |
| Brittleness test for root canal filling points ISO 6877 6.5 (bending 4–20× to ±30°)Testing | 30° ± 1° | – | – | – | Root canal filling points (endodontic obturation materials) |
| Bridge deformation testing device EN DIN 12870 (manual)Testing | – | – | – | – | Spectacle frames |
| Bridge deformation testing device EN DIN 12870 (auto)Testing | – | – | – | – | Spectacle frames |
| Durability test / endurance test for spectacle frames EN DIN 12870Testing | – | – | – | – | Spectacle frames |
| Spectacle spring test / load testing device for spring hingesTesting | – | – | – | – | Spring hinges |
| Chemo-mechanical abrasion testTesting | – | – | – | – | – |
| Engineering | – | – | – | – | – |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Fatigue test rig ISO 20126 5.6, 8 stations | JWE GmbH 305-020 | – | 920 × 740 × 540 mm, test load up to 10 N | – | Eschborn |
| Brushing machine for plaque removal / dentin abrasion ISO 11609, 8 test stations | JWE GmbH 311-010 | – | 700 × 700 × 750 mm, test force 0.5–5 N, stroke up to ±20 mm | – | Eschborn |
| Film thickness measuring device ISO 4049 / ISO 9917 | JWE GmbH 425-010 | – | 250 × 200 × 250 mm, measuring range 0–25 mm, accuracy 0.001 mm | – | Eschborn |
| Brittleness testing device for root canal filling points ISO 6877 | JWE GmbH 540-010 | – | 200 × 200 × 300 mm | – | Eschborn |
Additional services
Reference customers
Quality and Standards Compliance
The safety electronics of the test systems comply with ISO 13849 up to PL 4/e; CE certification includes a risk analysis according to ISO 12100. Calibrations are performed as factory calibration (JWE) or DAkks calibration; qualification and validation are part of the scope of services.
| Evidence | Eschborn |
|---|---|
| CE marking / risk analysis ISO 12100 | |
| Safety standard ISO 13849 (PL 4/e) | |
| DAkks calibration | |
| ISO 9001 |
History
More than 10 years of experience in the precise implementation of test standards (year of foundation not specified)