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The Log Scanner is built on the same X-ray principles as the Flow Scanner and covers the conveyor belt between the debarking drum and the chipper.
The standard product can be configured for different tree types, flow rates, temperature ranges, belt specifications, interface requirements and area restrictions. Modifications and customisations can be made to the existing design for site specific installation requirements.
Don’t worry. We have a number of optional compatible heating and cooling units to handle the toughest environments.
Internal regulated heating of critical elements to cover ambient temperatures below +10 ℃ but higher than -10 ℃.
Internal regulated heating of critical elements to cover surrounding temperatures below +10 ℃ but higher than -20 ℃.
Internal regulated additional cooling units for critical items, plus increased internal heat exchanger capacity, for surrounding temperatures up to 50 ℃.
The specifications below relate to the standard Log Scanner configuration. Almost all items can be customised to meet specific requirements. Weather protection is required if located outside.
| Physical | |
| Weight | 1200 – 1500 kg |
| Size (L x W x H) | 1.7 x 2.3 x 3.1 m |
| Electrical and climate cabinets | Located seperately |
| Environment | |
| Operating temperature | +10 – 35 ℃ |
| Extended operating temperature | -35 – 40 ℃ |
| Max Log thickness | 700 mm |
| Humidity | 50 -100% |
| Power (EU) | |
| Voltage | 400 VAC, 50-60Hz |
| Current | 16 A |
| Power | 1000 W |
| Requirements | |
| Belt width | up to 1400mm |
| Belt speed | 1-2 m/s |
| Belt angle | max 10 0C |
| Belt thickness | 20 mm, non-metallic |
| Material on belt | Debarked logs of hard- or softwood |
| Log moisture interval | 30 – 65 % |
| Pressurised air available | Yes |
| Filtered cooling water available | Yes |
| Foreign object detection specification | |
| Steel objects, min size | 5 x 5 x 5 mm |
| Soft metal objects (Al, Cu etc.), min size | 20 x 20 x 20 mm |
| Stones, min size | 70 x 70 x 70 mm |
| Signal latency (from detection to alarm) | 2 s |
Foreign object detection accuracy
The confidence of detecting foreign objects depends on type of log flow and is related to what rate of false detections is acceptable. Typically above 95 %.
Availability
The Log Scanner is extremely robust with up-times exceeding 99 %.
Radiation safety
Complies with local legislation for personel protection. Shut-off when entering belt area for removing objects. Emergency stop. Safety interlocks for service maintenance.
