nd:YAG Diode Pumped Laser Marking System
YEARLY COST OF OWNERSHIP CALCULATIONS - 1 SHIFT/DAY

	A	Replace Diode Rack - 6,000 to 8,000 hour life
	Diode Rack Cost		$4,500.00	0.25	1760 hrs/yr	$1,125.00	per year

	B	Air filter consumption per System
			ea.	yr.
	Weekly Pre-filter cost		$3.10	52	$161.20
	Monthly Pleated filter cost		$13.50	12	$162.00
	Yearly Hepa/Carbon filter cost		$255.00	1	$255.00
	Filter cost per year					$578.20	per year

	C	Parts & Service costs per system
	Cost per service		$200.00	0.33
	Spare parts used		$2,400.00	0.33	Lens/Parts, subject to maintenance
	Number of services per year		0.33	est. - Subject to Training & Maintenance
	Est. Total service costs per year					$858.00	per year

	D	Periodic maintenance per system
	Replace Lens & Filters		20	Hrs/year, Plant Maintenance
	Operator Maintenance hrs/year		11	2-3 Min/dy-Check & Clean Lens as required
	Plant Labor & overhead rate/hour		$35.00	est. ?
	Total cost per year					$1,085.00	per year

	E	Production line downtime costs (due to Laser failure)
	% production downtime		0.5	%	Low Probability-maintenance?
	Downtime cost per annum		$ ?
	Total downtime cost per year					?	per year

	F	TOTAL COST- Excluding Electric				$3,646.20

ASSUMPTIONS:
Laser Galvo Head Replacement			$11,500.00	5+ year life - maintenance & training?
Actual laser on time per year			1760 hrs	1.5 sec/mark, < 75% duty cycle
Expected System Replacement			>10 years+	Multiple Diode Rack Changes