1200 °F (650 °C) LEHRS PRODUCTIVITY
LENGHT	WIDTH	HIGH FIRE SOAKING TIME IN MINUTES	BELT SPEED INCHES/MIN.	HOURLY PRODUCTION SQUARE FEET	PIECES PER SQUARE FEET	8 HOURS PRODUCTION MUGS 4" X 4"
48'	3'	16 to 20	6 to 4.8	90 to 72	9	6480 to 5184
	4'	16 to 20	6 to 4.8	120 to 96	9	8640 to 6912
	6'	16 to 20	6 to 4.8	180 to 144	9	12960 to 10368
64'	3'	16 to 20	9 to 7.2	135 to 108	9	9720 to 7776
	4'	16 to 20	9 to 7.2	180 to 144	9	12960 to 10368
	6'	16 to 20	9 to 7.2	270 to 216	9	19440 to 15552
80'	3'	16 to 20	12 to 9.6	180 to 144	9	12960 to 10368
	4'	16 to 20	12 to 9.6	240 to 192	9	17280 to 13824
	6'	16 to 20	12 to 9.6	360 to 288	9	25920 to 20736
96'	3'	16 to 20	15 to 12	225 to 180	9	16200 to 12960
	4'	16 to 20	15 to 12	300 to 240	9	21600 to 17280
	6'	16 to 20	15 to 12	450 to 360	9	32400 to 25920

1500 °F (650 °C) LEHRS PRODUCTIVITY
LENGHT	WIDTH	HIGH FIRE SOAKING TIME IN MINUTES	BELT SPEED INCHES/MIN.	HOURLY PRODUCTION SQUARE FEET	PIECES PER SQUARE FEET	8 HOURS PRODUCTION MUGS 4" X 4"
48'	3'	24 to 30	4 to 3.2	60 to 48	9	4320 to 3456
	4'	24 to 30	4 to 3.2	80 to 64	9	5760 to 4608
	6'	24 to 30	4 to 3.2	120 to 96	9	8640 to 6912
64'	3'	24 to 30	6 to 4.8	90 to 72	9	6480 to 5184
	4'	24 to 30	6 to 4.8	120 to 96	9	8640 to 6912
	6'	24 to 30	6 to 4.8	180 to 144	9	12960 to 10368
80'	3'	24 to 30	8 to 6.4	120 to 96	9	8640 to 6912
	4'	24 to 30	8 to 6.4	160 to 128	9	11520 to 9216
	6'	24 to 30	8 to 6.4	240 to 192	9	17280 to 13824
96'	3'	24 to 30	10 to 8	150 to 120	9	10800 to 8640
	4'	24 to 30	10 to 8	200 to 160	9	14400 to 11520
	6'	24 to 30	10 to 8	300 to 240	9	21600 to 17280