JoeScan: Carriage Headrig

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	For carriage headrig applications, we recommend using one of our multiple-laser models – the JS-20 X2 or the JS-20 X3. The dual-laser X2 offers 12-inch spacing, while the triple-laser X3 provides 6-inch spacing.
	Product Specs

	Max Resolution:
		+/- 0.030”

	Placement Flexibility:
	X2 –	2 lasers 12” apart
	X3 –	3 lasers 6” apart

	Max Scan Rate:
	X2 –	135 profiles/sec. per laser
	X3 –	90 profiles/sec. per laser

	Depth of View:
		3’ to 8’

	Field of View:
		48” @ 96”

The carriage headrig has continued to evolve with the industry – from manually operated to photo-cell arrays to front-side-only shape scanning. And today, complete-coverage 3-D scanning is the gold standard. JoeScan's complete-coverage 3-D scanning is based on our standard JS-20 scanners, known for their simplicity, flexibility and reliability.

Front and Back Advantage

By scanning both the front and back side of every log, our scanners provide the optimizer with a complete picture of the possible value of every log. The optimizer can then select a cut that maximizes that value.

Illustration showing advatages of Front and Back Scanners

Increased Scan Density

The JS-20 X2 and X3 offer greatly improved scan density over single-laser scan heads. The X2, with dual lasers spaced 12 inches apart, can capture all the data you need in only a foot of travel. The X3 takes it even further, offering three lasers and 6-inch spacing, which provides more scan data for log positioning as well as improved data on high-speed carriages.

Illustration showing JS-20 X2 12-inch spacing and X3 with 6-inch spacing

Flexible Placement

The multiple-laser JS-20 X2 and X3 models offer a careful balance between cost and flexibility. Multiple-laser units can be individually placed and oriented to ensure every laser is getting a good scan, avoiding the many obstructions present in a mill environment and allowing the user to choose between 6- and 12-inch laser spacing, providing for the option of higher scan density if needed.

Diagram of flexible placement

Our 24-head snapshot scanner has been running great since 2003. Even with nine heads riding on the carriage for Surround Scan, we've had no problems with the JS-20 scan heads.