How to Choose Between Inline and Stack Flexographic Printing Machines
Choosing between an inline (CI or in-line unit type) and a stack flexographic printing machine essentially depends on your order precision requirements and investment budget. The two have clearly different positioning: the inline type is a "precision and flexible production platform," while the stack type is an "economical and practical basic tool."
Quick Overview of Core Differences
Dimension | Inline Flexo Machine | Stack Flexo Machine |
Registration precision | Within ±0.2 mm | ±0.5 mm |
Printing speed | Medium speed, up to about 220 m/min | Slower, about 70 m/min; single color up to 100 m/min |
Suitable orders | High value-added, high-precision products | Large-volume products with lower precision requirements |
Typical applications | Cigarette packaging, cosmetic labels, wine labels | Supermarket electronic scale labels, shopping bags, simple packaging |
Price level | Higher, usually starting at over one million | Low, cheaper to build |
Floor space | Larger, longer web path | Small, compact structure |
Front and back printing | Requires a turning bar; more flexible | Easy to achieve |
Inline processing | Very convenient; can flexibly combine multiple processes | More difficult |
How to Choose
Prioritize the inline type if:
Your orders are mainly cosmetic, wine, and daily chemical product labels, and customers have strict requirements for color and detail.
You need flexo + screen printing/offset/gravure combined printing capability for high-end labels.
You often take on short-run jobs and need inline finishing such as die-cutting, hot stamping, and lamination.
You have sufficient budget and space and want equipment that can adapt to the high value-added market over the long term.
Prioritize the stack type if:
Your main products are supermarket electronic scale labels, shopping bags, vest bags, etc., with low precision requirements.
Your orders are large in volume and low in added value, and you pursue quick payback and low-cost operation.
You need to start a flexo printing business within limited space and budget, or mainly do simple front and back printing.
One-Sentence Recommendation
If funds allow and you want to take on high-profit orders, go directly with the inline type; its precision and flexibility are unmatched by the stack type. If your budget is tight and your orders are mainly low value-added, large volume, the stack type is a pragmatic choice, but you must accept its ceiling in precision and speed.
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