Can a Flexographic Printing Machine Manufacturer Add Color Groups Custom Front Back
September 08, 2026
Most buyers ask the same thing before they order. Is the color count locked to the model on the page? The answer is no. The printing color group can be increased or decreased according to customer requirements. The front and back can be printed continuously at one time. Zhejiang Ruian Yunfeng Machinery Co., Ltd., the factory, builds its presses this way. As a flexographic printing machine manufacturer, the company has more than 20 years of experience in plastic machinery.
This article covers what a color group does. It shows how the count is set and how one pass prints both sides. You also get the full published specs, materials, and build features.
Can the Color Group Count Be Changed Before the Machine Is Built?
The color group count is set by the buyer, not by the model name. A flexographic printing machine manufacturer fixes this at order stage. It is agreed before the frame is built. On the Yunfeng range, the printing color group can be increased or decreased according to customer requirements.
Model names read like limits. YF-FP2, YF-FP4 and YF-FP6 look like three fixed choices. They are better seen as three starting points for a flexographic printing press. Each one has a full spec behind it.
Need a count outside those three builds? Ask at quote stage, not after delivery. Send your color count, your material and your web width with the enquiry.
What Does One Color Group Actually Do on the Press?
One color group transfers one ink color onto the material. A second ink layer is laid down in the same run after adding a second group. The number of inks applied by the press in one pass is the group count on a flexo printing machine.
And that is why the artwork determines the decision. A two-tone shopping bag requires very little. A complete process design with brand spot colors will take a lot more. Buyers who guess low sometimes roll the same run twice.
Color Group Count and What It Handles
How Does the Press Handle Front and Back in One Pass?
The front and back are printed continuously at one time. The roll is not flipped and fed back in for the second side. That drops a full setup from every double-sided job.
Yunfeng pairs this with a double position flip structure on rewinding and unwinding. It allows non-stop material receiving. The operator changes rolls without stopping the run.
The saving shows up in two places. One is labour. The other is registration. Every reload is a chance for the second side to sit off the first. This matters most on a flexographic printing machine for packaging work.
Inline Groups Compared With Repeat Passes
The point is simple. A count that matches the artwork keeps a job to one run. One run is where accuracy and output both sit highest.
Which Standard Builds Does Yunfeng Publish?
Three builds appear on the printing press page. Each comes in two frame widths, 600 mm and 800 mm.
YF-FP2 Colors Flexographic Printing Machine
The YF-FP2 is the two-colour build. It runs at 600 mm or 800 mm material width. Power is 5 kW and 6 kW. Both frames measure 1900×1800×2300 mm and weigh 2500 kg.
YF-FP4 Colors Flexographic Printing Machine
The YF-FP4 is the four-colour build. It is the usual pick for a multi color flexographic printing machine. Power is 11 kW at 600 mm and 12.5 kW at 800 mm. Frame length grows to 4200 mm.
YF-FP6 Colors Flexographic Printing Machine
The YF-FP6 is the six-colour build. As a 6 color flexographic printing machine it draws 13 kW or 15 kW by width. The frame runs 4500 mm long. Weight is 3500 kg or 4200 kg.
Published Specifications for Every Width and Color Count
Read across the table and one pattern shows up. Power, weight and frame length climb with the color count. Speed, print length range and roll diameter do not. They hold at 5–50 m/min, 191–914 mm and Φ450 on all six builds. More groups change the footprint and the load, not the working range.
Which Materials Can the Press Run?
The press is suitable for multi-color continuous printing on BOPP, PET, PE, PVC, CPP, cellophane, paper and aluminium foil.
As a plastic film printing machine, it covers stiff films like PET and soft ones like PE. Foil, cellophane and paper sit on the same published list.
Check your substrate against that list first. Then fix the color count. Material and ink behaviour affect how the print holds up at speed.
Which Build Features Support a Custom Color Count?
Published Features of the Yunfeng Printing Press
Main engine can adopt electromagnetic valve speed regulation or frequency conversion
Anti-winding and unwinding traction controlled by torque motor
Magnetic powder brakes on winding and unwinding traction
Electric intelligent temperature control
Single baking design, easy to wear
Shaft mounting method
These features matter more as groups are added. Each extra group raises tension and drying demand across the web. So torque motor traction and temperature control count for more on a six-colour frame. Read this list next to the power figures when you compare flexographic printing equipment.
How Should You Choose Your Color Count Before Ordering?
Answer four questions before you ask any flexographic printing machine manufacturer for a quote. Each one changes the build.
How many colors does the artwork need? Count spot colours apart from process colours.
Is the job printed on one side or both? Both sides in one pass is standard here.
Which material and which width? Frames are published at 600 mm and 800 mm.
Will the count need to grow? Say so early, since the count is set at order stage.
Send those four answers to your flexographic printing machine supplier with the enquiry. A quote built on real artwork is faster. It is also far more accurate than one built on a model number.
Why Work With Yunfeng as Your Flexographic Printing Machine Manufacturer?
Ruian Yunfeng Machinery Co., Ltd.Co., Ltd. Factory sits in Ruian, Wenzhou, Zhejiang, China. The company has more than 20 years of professional technology and experience in plastic machinery. It has also obtained more than 10 national patents.
The range is not limited to presses. Film blowing machines, bag making machines and accessories are built alongside them. That helps when a print line sits next to upstream kit. After-sales service, a video centre and downloads are all on the site.
FAQs
Can the number of color groups be changed on a flexographic printing machine?
Yes. A flexographic printing machine manufacturer sets the color group count to the customer's requirement. The count is agreed at order stage.
Standard builds are 2, 4 and 6 colors
Send your artwork colour count with the enquiry
Can a flexo press print the front and back at the same time?
Yes. The front and back are printed continuously at one time in a single pass. The roll is never flipped and refed.
A double position flip structure allows non-stop material receiving
One pass means one setup per job
What is the maximum printing width on Yunfeng flexo presses?
The maximum printing width is 760 mm on the 800 mm frame. On the 600 mm frame it is 560 mm.
Max material width is 600 mm or 800 mm by model
Print length range is 191–914 mm on all builds
How fast does the machine print?
Printing speed is 5–50 m/min. That range is the same on all six published builds, from two colors to six.
Max roll diameter is Φ450 on every build
Speed does not drop as color groups are added
Which materials can the machine print on?
The press runs BOPP, PET, PE, PVC, CPP, cellophane, paper and aluminium foil. All are listed for multi-color continuous printing.
Covers both stiff and soft films
Confirm your substrate before you fix the color count
What is the difference between the 2, 4 and 6 color models?
The difference is the number of inks laid down per pass. Power, weight and frame length also rise. Total power runs from 5 kW to 15 kW.
Frame length grows from 1900 mm to 4500 mm
Weight grows from 2500 kg to 4200 kg
Speed and roll diameter stay the same on all three
Conclusion
Color group count is a spec you set. It is not one you inherit from a model name. Decide it against your artwork, your material, and whether the job prints on one side or two.
Do you need a flexographic printing machine manufacturer that fixes the count to your requirement and prints both sides in one pass? Ruian Yunfeng Machinery Co., Ltd. publishes the full spec for every width and color count. Send your artwork details through the contact page for a quote built around your job.
