Paper Bag Digital Printing Machine (Double Printer Heads)

CMYK-420A

The digital paper bag printing machine is a plate-free inkjet printing system designed specifically for packaging products such as paper bags and tote bags. Using CMYK four-color inkjet technology, it can directly print electronic files (such as designs, text, and variable data) at high speed onto absorbent surfaces such as kraft paper, greaseproof paper, and biodegradable materials. Supporting single- or double-sided printing, it is suitable for small-batch customization, personalized logos, and variable data printing, significantly reducing the minimum order requirement for traditional printing.

What is CMYK-420A?

CMYK-420A is a Roll fed square bottom kraft paper bag making machine designed for square bottom kraft bags, grocery bags, retail bags and food packaging bags.

To configure CMYK-420A accurately, buyers should provide roll paper width, bottom width, gusset, paper GSM, printing and required speed. CHAMPION reviews these inputs against the finished bag sample before confirming the machine layout.

Technical Specification Overview of CMYK-420A

Machine category Roll fed square bottom kraft paper bag making machine
Model / product name CMYK-420A - Paper Bag Digital Printing Machine (Double Printer Heads)
Suitable bag applications square bottom kraft bags, grocery bags, retail bags and food packaging bags
Main production process roll feeding, side gluing, bottom forming, cutting, folding and finished bag output
Buyer confirmation points roll paper width, bottom width, gusset, paper GSM, printing and required speed

Paper Bag Size Calculator

Enter the finished luxury paper bag dimensions to calculate the required flat paper size and check whether the selected machine range is suitable.

CMYK-420A | Roll-fed square bottom paper bag machine
Luxury bag sample D front width / C gusset / J height / F top fold
Flat paper layout Generated after machine range check
The Bag Size You Need Formula: W = 2D + 2C + G; H = F + J + K; K = C/2 + 15
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Waiting for input Enter D, C, J, F and G, then generate the flat paper layout.
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Send dimensions

This calculator is for early project screening. Final machine selection should also confirm paper GSM, handle type, bottom structure, glue method, printing process and target production speed.

Machine Description


The digital paper bag printing machine is a plate-free inkjet printing system designed specifically for packaging products such as paper bags and tote bags. Using CMYK four-color inkjet technology, it can directly print electronic files (such as designs, text, and variable data) at high speed onto absorbent surfaces such as kraft paper, greaseproof paper, and biodegradable materials. Supporting single- or double-sided printing, it is suitable for small-batch customization, personalized logos, and variable data printing, significantly reducing the minimum order requirement for traditional printing.

Machine Features


Plate-Free & Small-Batch Customization
● Eliminate the traditional plate-making and plate-making processes of traditional printing; simply import the design file and start printing directly, significantly shortening production cycles.
● Single-piece printing, low cost, particularly suitable for personalized orders and urgent replenishment.
Fully Automated Production System
● Integrated dual-feed system and automatic receiving device support continuous feeding, reducing manual intervention, allowing one person to operate multiple machines.
● Automatic shutdown upon material runout, and a meter counter precisely controls print quantity for improved stability.
Efficient Printing Capacity
● Speed ??range: 2,000-20,000 pieces/hour (adjustable depending on design complexity).
Wide Material Compatibility
● Compatible with a variety of paper bag materials: kraft paper, greaseproof paper (barbecue bags), hamburger paper, biodegradable lunch boxes, etc.
● Expandable printing capabilities for other packaging: paper cups, pizza boxes, seed cards, round fans, etc.
Color and Precision Advantages
● CMYK four-color printing, unlimited color combinations, and photo-quality gradient effects. 
● Utilizes a circulating ink supply system (such as XAAR printhead technology) to reduce the risk of printhead clogging and ensure precise ink droplet placement.
Environmentally friendly and economical
● Uses water-based ink, free of volatile organic compounds (VOCs), meeting green production standards.
● Low energy consumption (select models reach 3kW), saving electricity and storage costs compared to traditional offset printing (no printing plate storage required).
Typical Applications
● Commercial customization: Branded tote bags, holiday gift bags, promotional paper bags.
● Food packaging: Food-safe printing on toast bags, barbecue bags, hamburger wrappers, and more.
● Industrial packaging: Multi-color printing on woven ton bags and industrial kraft paper bags.

Machine Floor Plan


Paper Bag Digital Printing Machine (Double Printer Heads)

 


ModelCMYK-420A
Printer HeadHP 452
Printing Width210mm/Single 420mm/ Double
Printing Color4 Colors CMYK Standard
Printing ContentsText, mathematics, pictures, colors, variable pictures, and flexible design layout
Paper Width50-600mm
Paper Thickness1.0-0.5mm
SpeedHigh resolution mode: 15 meters per min, high / Speed mold: 35 meters per min
Voltage220V
Power3KW
Machine SizeL5800 x W1300 x H1500mm
Machine WeightApprox: 1000kg


 

Paper Bag Digital Printing Machine (Double Printer Heads)


1)Auto Feeding
2)Paper Bag
3)Paper Bag Positioning
4)Paper Bag Flattening
5)Graphic Printing
6)Printing Finished Bag Output
7)Auto Collection

 


Paper Bag Machine Buyer FAQ

Which specifications determine a square-bottom machine configuration?

CMYK-420A: Confirm paper roll width and diameter, bag width, tube length, gusset, bottom width, paper GSM, printing colors, handle requirement and target speed.

Which bags are suitable for a square-bottom production line?

CMYK-420A: Typical applications include kraft shopping bags, grocery bags, takeaway bags, bakery bags and retail carrier bags that need a stable standing bottom.