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1) Offset Printing Exposure, 2) Printing Down Frame, 3) Prepress Equipment, 4) Plate Exposing Machine - details see: https://www.machineto.com/offset-printing-down-frame-10072846

Features:
1. Able to print two CD74 PS plates or one CD102 PS plate at one time.

2. Heavy double-deck and dual-loop vacuum-exhausting system of Superluck contact exposure frame can make vacuum-exhausting operate from the center and spread all round, thus ensuring a 70% higher speed than average exposure frame. (Plate of any material is ready to expose within one minute)

3. Made-in-Germany reflection plate with strong reflecting light, which is verified to be more than 86% uniformity.

4. Good-quality violet light source, whose wavelength is 365-420NM, is three times the light intensity as average ones. High exposing quality and long time duration. Anti-electrostatic rubber cloth and block gine with strong air-tightness and durability.

5. Double exposure system can wipe out dirty spots and imprints of the block gine efficiently, thus reducing retouch work and raise the efficiency of work.

6. Best quality vacuum pump of Superluck contact exposure frame runs noiselessly and lasts without maintenance.

7. Accurate light integrator automatically detects the light intensity of the light source, so as to accurately keep the error range within 2% and eliminate the distortion of screen dots caused by the deterioration of lamps, instability of voltage, etc.

8. The screen can display 5 sets of data. The CPU can store 99 sets of data. It's easier to operate, especially for beginners. It reduces operation error.

9. Full-cover frame prevents the radiation of UV ray.

10. Enhanced steel plates processed by numerical control and thick film coating of electrostatic powder for ultra-long operation life.

11. Superluck and external joint factory inspection on the 0-100 step printing down to ensure 2% of halftone dots aren't lost and 98% are not mixed.

Configuration
Exposing lamp: Made in Japan, Ushio, Metal Halogen Lamp
Rubber pad: Made in Japan
Vacuum pump: Made in Taiwan, Oilless
Control panel: Made in Taiwan
Igniter panel: Made in Taiwan
Light integrator: Made in Taiwan
Reflection plate: Made in Germany
Optical glass: Made in Germany

Specification:

Model	SL-3848	SL-4254	SL-6072
Exposing Area(mm)	960×1220	1060×1350	1500×1800
Light Source	made-in-Japan USHIO 3KW instant violet lamp (5KW constant violet lamp is optional)
Vacuum System	high speed dual-loop vacuum-exhausting system
Power Supply	220V 50/60HZ 25A single phase
Net Weight (kg)	270	320	385
Gross Weight(kg)	345	430	480
Mechanical Size(mm)	1650×1350×2100	1830×1530×2350	2080×1900×2350
Packing Size(mm)	1360×2150×1550	1370×2210×1550	1910×2300×1850

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