Two Colour Offset Printing Machine

Two Colour Offset Printing Machine
Product Details

Applicable target: 

medium- and large-sized printing enterprises, advertising production industry 

Applicable substrate:

multicolor prints with the thickness from 0.04-0.4 mm, especially suitable for short-length multicolor prints.

Brief Description:

Donghang multicolor offset printing machine can print typing paper, newsprint, two-side offset paper, kraft paper, coated paper, self-adhesive paper, etc. 

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.

Main Characteristics:

1. Horizontal and vertical adjustment without power off achieves quicker and more convenient registering. 

2. 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.

3. Auto-cleaning device for rubber blanket would run just after clicking the button.

4. Dirty-resistant collection wheel guarantees clear print surface.

plate-changing and registering and improves work efficiency.

5. Optionally configured ink controlling system accurately controls ink amount and is more suitable for high-quality multicolor prints.

6. This machine is equipped with continuous water-feeding device and cooling water circulation device.

7. High-strength base guarantees high-speed and efficient printing.

8. Optionally configured automatic plate cocking device shortens register time and improves work efficiency. 

9. 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.

10. Auto plate-mounting system 15. Scientifically designed floating plate roller can effectively eliminate the ghost image.

Specification:


DH252

Max printing area

505×350

Max paper size

520×365

Min paper size

257×182

Paper thickness

0.04--0.4

Plate size

510×400×0.15

Plate thickness

0.4 (including plate liner)

Rubber blanket size

510×452×1.90

Rubber blanket liner size

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

4 KW

Air pump motor

1.1 KW

Control power

0.2 KW

Water fountain motor

0.2 KW

Lift motor

0.2 KW

Total

5.7 KW

Main power voltage

three phase 380V/400V 50/60Hz

Power capacity

12 KVA

Machine size

2080×1365×1650

Machine weight

3800KGS

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