1. This machine adopts V-shaped five-cylinder structure. Every two color stations share a double-diameter impression cylinder. Double color units are connected with two double-diameter cylinders and one tri-diameter paper transmission cylinder, which realizes four-color printing of each sheet with only seven transfers, seven transfers less compared with traditional cylinder structure, and is favorable for high-accuracy printing. Using double-diameter impression cylinder increases curvature radius of sheet during the printing process and reduces the bending of paper.
2. Double-roll and three-point eccentric shaft bearing of the rubber blanket cylinder realizes reliable clutching and stable pressure. Plate cylinder, impression cylinder and paper transmission cylinder all adopt the tapered roller bearing which completely eliminates the beating due to the gap between bearings.
3. High-strength base guarantees high-speed and efficient printing.
4. Conjugate cam driving and adjustable front guide and the swinging teeth fully guarantee continuous paper-feeding and accurate printing.
5. Specially designed delicate durable Feeder installation, continuous paper-feeding mode and side-wheel side guide ensure fast, accurate and stable transfer of papers.
6. Pneumatic braking makes ink-clutch fast and reliable. Horizontal and vertical adjustment without power off achieves quicker and more convenient registering.
7. Continuous alcohol-moistening mode with auxiliary roller ensures the prints bright and clear. Even if there is no alcohol employed, it can produce excellent prints.
8. The fountain roller is driven by an individual motor, and its speed can self-adjust to track the host speed, which would ensure that the water and ink still maintain a balance when the machine’s speed changes.
9. Scientifically designed floating plate roller can effectively eliminate the ghost image.
10. Auto-cleaning device for rubber blanket would run just after clicking the button.
11. This machine is equipped with continuous water-feeding device and cooling water circulation device.
12. Dirty-resistant collection wheel guarantees clear print surface.
13. Optionally configured APC auto plate-mounting system greatly reduces the time for plate-changing and registering and improves work efficiency.
14. Optionally configured ink controlling system accurately controls ink amount and is more suitable for high-quality multicolor prints.
15. Optionally configured automatic plate cocking device shortens register time and improves work efficiency.
DH456
DH452
DH252
Max printing area
540×375
505×350
Max paper size
560×395
520×365
Min paper size
257×182
257×182
Paper thickness
0.04-0.4
0.04--0.4
Plate size
550×420×0.15
510×400×0.15
Plate thickness
0.4 (including plate liner)
Rubber blanket size
550×470×1.90
510×452×1.90
Rubber blanket liner size
550×395×1.0
510×367×1.0
Printing speed
3,000-12,000 pages/hour
Horizontal adjustment range
±2mm (front guide)
±1.5mm(plate cylinder)
Vertical adjustment range
±1mm
Ink roller
16 ink rollers (including 3 forme-inking rollers)
Paper feeding
8±1mm
Paper feeding mode
continuous paper feeding
Water feeding mode
continuous water feeding
Max paper feeding height
500 mm
Max paper collecting height
420 mm
Main motor
5.5 KW
4 KW
Air pump motor
1.1 KW
1.1 KW
Control power
0.3 KW
0.2 KW
Water fountain motor
0.4 KW
0.2 KW
Lift motor
0.2 KW
0.2 KW
Total
7.5 KW
5.7 KW
Main power voltage
three phase 380V/400V 50/60Hz
Power capacity
15 KVA
12 KVA
Machine size
3800×1580×1650
3655×1365×1650
2080×1365×1650
Machine weight
8500KGS
7500KGS
3800KGS