HXM screening sets

These tables provide an overview of the supported HXM screening sets.

Important: Because HXM is a pre-generated tile based screening, it is not recommended to mix it with function based dotshapes as the RIP will not take the HXM ruling into consideration when calculating the actual angles and ruling for the function based dotshapes.

FLEXO


Resolution (DPI)	Ruling (LPI)	Minimum Dot (μ)
2000	133	25
2000	133	38
2000	133	51
2000	150	25
2000	150	38
2000	150	51
2000	175	25
2000	175	38
2000	175	51
2400	100	11
2400	100	21
2400	100	32
2400	100	53
2400	120	11
2400	120	21
2400	120	32
2400	120	53
2400	133	11
2400	133	21
2400	133	32
2400	133	53
2400	150	11
2400	150	21
2400	150	32
2400	150	53
2400	175	11
2400	175	21
2400	175	32
2400	175	53
2400	200	11
2400	200	21
2400	200	32
2400	200	53
2400	280	11
2400	280	21
2400	280	32
2400	280	53
2540	55	60
2540	55	50
2540	65	60
2540	65	50
2540	75	60
2540	75	50
2540	85	60
2540	85	50
2540	100	10
2540	100	20
2540	100	30
2540	100	50
2540	120	10
2540	120	20
2540	120	30
2540	120	50
2540	133	10
2540	133	20
2540	133	30
2540	133	50
2540	150	10
2540	150	20
2540	150	30
2540	150	50
2540	175	10
2540	175	20
2540	175	30
2540	175	50
2540	200	10
2540	200	20
2540	200	30
2540	200	50
4000	100	13
4000	100	19
4000	100	32
4000	100	6
4000	120	13
4000	120	19
4000	120	32
4000	120	6
4000	133	13
4000	133	19
4000	133	32
4000	133	51
4000	133	6
4000	133	63
4000	133	76
4000	150	13
4000	150	19
4000	150	32
4000	150	51
4000	150	6
4000	150	63
4000	150	76
4000	175	13
4000	175	19
4000	175	32
4000	175	6
4000	200	13
4000	200	19
4000	200	32
4000	200	6
4800	100	11
4800	100	16
4800	100	26
4800	100	5
4800	120	11
4800	120	16
4800	120	26
4800	120	5
4800	133	11
4800	133	16
4800	133	26
4800	133	5
4800	150	11
4800	150	16
4800	150	26
4800	150	5
4800	175	11
4800	175	16
4800	175	26
4800	175	5
4800	200	11
4800	200	16
4800	200	26
4800	200	5
5080	55	60
5080	55	50
5080	65	60
5080	65	50
5080	75	60
5080	75	50
5080	85	60
5080	85	50
5080	100	10
5080	100	20
5080	100	30
5080	100	40
5080	100	50
5080	100	60
5080	120	10
5080	120	20
5080	120	30
5080	120	40
5080	120	50
5080	120	60
5080	133	10
5080	133	20
5080	133	30
5080	133	40
5080	133	50
5080	133	60
5080	150	10
5080	150	20
5080	150	30
5080	150	40
5080	150	50
5080	150	60
5080	150	70
5080	175	10
5080	175	20
5080	175	30
5080	175	40
5080	175	50
5080	175	60
5080	175	70
5080	200	10
5080	200	20
5080	200	30
5080	200	40
5080	200	50
5080	200	60
5080	200	70

ROUND OFFSET


Resolution (DPI)	Ruling (LPI)	Minimum Dot (μ)
1200	75	11
1200	75	21
1200	75	32
1200	75	42
1200	85	11
1200	85	21
1200	85	32
1200	85	42
1200	95	11
1200	95	21
1200	95	32
1200	95	42
1200	10	511
1200	10	521
1200	10	532
1200	10	542
1200	12	11
1200	12	21
1200	12	32
1200	12	42
2400	13	311
2400	13	321
2400	13	332
2400	13	342
2400	15	11
2400	15	21
2400	15	32
2400	15	42

TRADITIONAL OFFSET


Resolution (DPI)	Ruling (LPI)	Minimum Dot (μ)
1200	105	11
1200	105	21
1200	105	32
1200	105	42
1200	120	11
1200	120	21
1200	120	32
1200	120	42
1270	110	11
1270	110	21
1270	110	32
1270	110	42
1270	127	11
1270	127	21
1270	127	32
1270	127	42
2400	133	11
2400	133	21
2400	133	32
2400	133	42
2400	150	11
2400	150	21
2400	150	32
2400	150	42
2400	210	11
2400	210	21
2400	210	32
2400	210	42
2400	240	11
2400	240	21
2400	240	32
2400	240	42
2540	180	11
2540	180	21
2540	180	32
2540	180	42
2540	200	11
2540	200	21
2540	200	32
2540	200	42
2540	220	11
2540	220	21
2540	220	32
2540	220	42

How to define the HXM minimum spot size (in μ)

You can calculate the equivalent percentage this way:

Example

L = 150 LPI

R₀ = 2400 DPI

Min dot 50 μ

Calculate how much 1 pixel is:
1 inch = 25.4 mm = 25400 μ
(25400 μ)/(2400 DPI) = 10.5 μ = 10 μ
Check the size of the minimum dot = 50 μ
One pixel is 10 μ so this means that this fits 5 times in the minimum dot.

Which results in this raster to build up one dot. In this case it is a grid of 5 x 5 = 25 pixels.
(2400 DPI)/(150 LPI) = 16² = 256
(25 pixels)/256 = 0.097 = 9.7 = 10%

So a minimum dot of 50 μ at 2400 DPI and 150 LPI equals 10%.

Note: If the exact minimum dot is not available in the supported HXM screening sets, the next (bigger) minimum dot is used.