456 Four-color offset printing machine

Paternt-product:Four-color offset printing machine

Continuous Water- Feeding Device

DH456’s continuous dampening system is equipped with cooling water circulation device which ensures there will always be water film on the plates, even if no ethyl alcohol supplied. Such kind of device can meet the requirements of high-qualified printing.

Continuous Paper-Feeding Device

Adopt the newest designed, small type continuous paper-feeding device.

Pneumatically Controlled Clutch Mechanism

The cylinders and the forme roller clutch are controlled pneumatically, which not only simplifies the clutch mechanism but also improves the durability of the whole machine.

Tri-diameter Paper-transporting Cylinder

 Double-diameter pressing cylinder, tri-diameter paper-transporting cylinder and the main precisely assembled drive system guarantee the printing quality and accurate register.

DH456 Technical Parameters
Maximum paper size	560×400mm
Minimum paper size	257×182mm
Maximum printing area	540×375mm
Thickness	0.04--0.4mm
Paper-feeding mode	Continuous paper feeding
Paper- feeding board capacity	420mm
Paper -delivering board capacity	500mm
Dampening system	Continuous lubrication
Number of ink rollers	16 rollers (including 3 forme rollers)
Printing speed	3,000---12,000 pages/hour
Main power	7.5KW
Power source	Three-phase 380V/400V 50/60Hz
Overall dimension	4,054(length)×2,225(width)×1,650(height)mm
Weight	8,000kg

456 Four-color offset printing machine