Product Description

Screen exposure machine:

Function

• Making screens: Transfer the graphic information on the film to the screen through exposure, forming the graphic part and non-graphic part required for printing, so that the screen has printing function.

Principle

• Exposure imaging: The exposure machine uses ultraviolet (UV) light source. When the film and the screen coated with photosensitive glue are placed tightly on the exposure table, the light source is turned on, and the ultraviolet light passes through the transparent part of the film, causing the corresponding photosensitive glue on the screen to undergo a photochemical reaction, hardening to form the graphic part, while the part blocked by the film remains unhardened and becomes the non-graphic part after washing.

Selection method

• Light source type: Common ones are metal halide lamps and LED lamps. Metal halide lamps have high power and strong light, but high heat and high energy consumption; LED lamps have low heat generation, low energy consumption, long life, but relatively high prices. If the printing volume is not large, it is more appropriate to choose an LED exposure machine; if the printing task is heavy, a metal halide lamp exposure machine may be more able to meet the needs.

• Exposure area: Choose according to the size of the commonly used screens to ensure that the exposure area can cover the screens. Generally, there are different specifications such as A3 and A2 to choose from. For example, if you often make large-sized poster screens, you need to choose a platemaking machine with a larger exposure area.

• Exposure uniformity: Exposure uniformity directly affects the quality of the screen. A platemaking machine with high uniformity can produce better screen printing effects.

• Automation: A platemaking machine with a high degree of automation is easier to operate and can improve work efficiency. For example, a platemaking machine with an automatic vacuum function can make the film and the screen fit tightly, reduce the error during exposure, and is suitable for printing operations with high precision requirements.

UV Exposure Machine //Usage and characters
Guide	Used in the filed of plate-making such as pad plate, screen plate, hot stamper plate, resin plate; When you cover the film onto the plate into UV exposure machine, start it, the emulsion on the plate will appear a unseen imagine; This is important process on all plate-making technology. flexibility Rubber Film ensure Film contact compactly with surface of silk when vacuum state.
Application fields	Nylon silk,; PET Silk, Stainless steel silk.
UV Exposure machine //Parameter
Technical parameters	SM-90120UVE
	Glass Dimension: 900X1200mm; Glass thickness: 10mm. Lamp Wattage: 2000W; Max Frame dimension: 800×1100mm; Exposure Area: 850mm×1150mm; Vacuum degree: 0.05mpa; Wattage: 80w/cm; Lamp distance:750mm； Weight:135KG.
	SM-120150UVE
	Glass Dimension: 1200X1500mm; Glass thickness: 10mm; Lamp Wattage: 3000W; Max Frame dimension: 1100×1500mm; Exposure Area: 1050mm×1550mm; Vacuum degree: 0.05mpa; Wattage: 80w/cm; Lamp distance:750mm； Weight:155KG.
	SM-150200UVE
	Glass Dimension: 1500X2000mm; Glass thickness: 10mm; Lamp Wattage: 3000W; Max Frame dimension: 1400×1900mm; Exposure Area: 1450mm×1950mm; Vacuum degree: 0.05mpa; Wattage: 100w/cm; Lamp distance:750mm； Weight:175KG
Works supply	1phase 220V or 3Phase 380V Power supply
Package list	Outer size: 1.28×0.98×0.98m ； Net  weight:135 KG
	Package size:1.34×1.03×1.02m ； Gross weight:226 KG; CBM: 1.136
H.S.Code	8443198000
Certificate	CE
UV Exposure Machine //Advantage
Function	Choose high quality UV lamp. keep long life; Reflect cover made by resist aging materials; Whole jointing with zinco plate, both portability and firmly; Exposal time auto adjustment and controlling; High vacuum degree, easy to transfer and copy fine lines ； Automatic door of UV lamp shut off and turn on when exposure and finish ensure long life of UV lamp; High toughness Rubber Layer ensure Film closely cover with frame.
Accessories included	Operation instruction in English 1 pc.
UV Exposure machine //Technical support
Printing elements	Please replace UV lamp after 1000 hours life; Please use UV Exposure machine in dark room; Please test Exposure machine and get correct parameter before making plate; Choose good quality Photosensitive adhesive
Fittings	Description	Size	Price
1	UV lamp	230mm/2000W	40USD
2	Trigger		40USD

Application︰
The main feature of the screen printing plate is the hollowed out graphic area and the closed area after the photosensitive glue is cured on the tight mesh cloth. The hollowed out area can penetrate the ink, and the closed area blocks the ink. Exposure machine is a device that uses photosensitive glue to be blocked and transmitted by the film under the irradiation of UV light to form the photosensitive area and the non-sensitive area. The photosensitive area will be cured to form a closed area of ​​the screen, and the non-photosensitive area will be washed to form a hollow area. Exposure machine is the most important equipment in the field of traditional plate making, and it has a wide presence in the market.

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