Products > Weight per Unit Area Gauges > Weight per Unit Area Gauges
Controlling the weight per unit area of a mat before the press.
Mat forming is subject to fluctuations caused by different wood species and technical limits of the machinery. The consequences are increased pressing time, overweight or lack of quality. The range with the highest weight per unit area defines the pressing time. If this range is exceeded, the pressing time is extended. A weight-per-unit-area gauge traverses across the mat width. This enables to achieve tight forming tolerances and to prevent overdimensioning.
When starting a production line, it might be helpful to monitor the longitudinal profile of the mat. To this end, the measuring head can be stopped at any position across the mat any time.
Function:
MASS-SCAN X measures the weight per unit area of a fibre mat crosswise and lengthwise to the production direction.
Locations:
- ex forming station, before press
- on the finished board, ex press
Safety:
- in compliance with the German safety regulations for x-ray systems
Computer system:
- 19" industrial computer
- wide-range power pack
- operating system Windows XP
- hard disc in alternate frame
- server hard disc (24 h operation)
- RAID controller for data backup
(mirroring to a second hard disc) - Ethernet LAN
- monitor TFT 19"
- colour printer
Technical Data:
| Technology: | X-ray |
| Anode current: | < 1 mA |
| High voltage: | < 32 kV |
| Cooling: | electrical cooling by peltier-element |
| Control: | smooth start of x-ray performance over 45 s |
| Service life of x-ray tube: | approx. 5 years |
| Measuring range: | up to 40 kg/m² (standard) |
| Traversing: | 250 mm/s (adjustable) can be stopped at any position across the mat |
| Drive: | adjustable gear motor |
| Guides: | tooth belt, linear guides (insensitive to soiling) |
| Cable: | elastic trailing cables |
| Calibration: |
on sample outside of belt conveyor, several calibration values can be selected |
| Accuracy: | +/- 0,25% of measuring range limit |
| Compressed air: | > 4 bar |
Analysis:
- current cross profile
- long-term cross profile
- longitudinal profile
- 3D-display
- trend
- hystory function
Options:
- Interruption-free power supply for PC
Payback:
- optimisation of forming and pressing
- reduction of energy, resin and raw material consumption
- prevention of belt displacement
- reduction of sanding
- quality assurance
