How Does a Fully Automatic Coating Machine Enhance Your Printed Products?

You're running a print finishing line — packaging materials, commercial print, or folding cartons. The printed sheets look good coming off the press, but without a protective coating, they're vulnerable to scuffs, moisture, and fading. A film laminator with fully automatic format varnish coating is the machine that changes that — applying a clear protective layer that enhances durability, gloss, and resistance to handling. The KPZ series from Gaoke Machinery is one example, reaching mechanical speeds of 100 meters per minute and handling paper from 80-500g/m². This guide covers what an automatic coating machine does, the types of coatings it applies, the key specifications that determine performance, and what to look for when selecting one for your finishing line.

UV, Water-Based, and Gloss – Three Coating Types That Transform Print Finishing

A fully automatic varnish coating machine applies a liquid coating to printed sheets, which is then dried or cured to form a protective layer. The KPZ series supports multiple coating types, giving you flexibility across different job requirements. UV coating is cured instantly under UV light, producing a hard, high-gloss finish with excellent scuff and chemical resistance — ideal for packaging and premium marketing materials. Water-based coating is environmentally friendly with lower VOC emissions, offering good protection and a natural finish suitable for food packaging and general commercial work. Gloss coating enhances visual appeal and provides basic protection for brochures, catalogs, and promotional materials.

UV Coating – The Premium Protection Choice

UV coating cures instantly under ultraviolet light, creating a hard, glossy surface that resists scuffs, fingerprints, and moisture. It's the go-to choice for luxury packaging, cosmetic boxes, and high-end marketing collateral where durability and visual impact are equally important.

Water-Based Coating – The Environmentally Conscious Option

Water-based coatings are low in VOCs and offer good protection with a natural finish. They're widely used in food packaging and general commercial print where environmental compliance matters.

100m/min Mechanical Speed – The Throughput That Keeps Your Finishing Line Moving

The KPZ series delivers a mechanical speed of 100 meters per minute . At this speed, a single machine can process thousands of sheets per hour — enough to keep pace with high-volume printing presses and meet tight production deadlines. The automatic feeder supports non-stop operation, minimizing downtime between pallets and maximizing throughput across shifts.

Speed That Matches Your Press Capacity

With a mechanical speed of 100m/min, the coating machine can keep up with most commercial printing presses. This means you can coat printed sheets as fast as they come off the press, eliminating bottlenecks in the finishing stage.

Non-Stop Feeding for Maximum Uptime

The automatic feeder supports continuous sheet feeding, reducing the pauses between pallets and keeping the coating line running at full capacity.

80-500g/m² Paper and Board – One Machine That Handles the Full Range

The KPZ series handles paper thickness from 80-500g/m² . This range covers everything from lightweight paper for brochures and flyers to heavy cardboards for packaging and folding cartons. The ability to handle both thin and thick materials on a single machine eliminates the need for separate equipment and simplifies production planning.

Lightweight Paper Applications

For 80-120g/m² paper, the machine runs at higher speeds with standard coating settings. These applications include flyers, brochures, and magazine inserts where a thin, protective coating is sufficient.

Heavy Cardboard Applications

For 300-500g/m² cardboard, the machine adjusts to ensure consistent coating coverage without warping or damaging the substrate. These applications include folding cartons, packaging boxes, and presentation folders.

320×260mm to 1300×1650mm – Sheet Sizes That Cover Most Print Jobs

The KPZ series is available in multiple models to match different sheet size requirements :

Matching Size to Your Print Format

The KPZ1300XLW handles large-format sheets up to 1300×1650mm, making it suitable for posters, large packaging, and oversized print jobs. The KPZ650U is designed for smaller formats, ideal for labels, small cartons, and specialty print work.

High-Pile Feeding and Delivery

With feeding and receiving pile heights up to 1360mm , the machine supports long runs between pallet changes, reducing downtime and improving overall efficiency.

Automatic Feeder, High-Pile Delivery, and Precision Coating – The Features That Drive Consistent Quality

The KPZ series incorporates several automation features that ensure consistent coating quality and reliable operation. The automatic feeder provides precise sheet alignment, reducing waste and ensuring even coating coverage across every sheet. The high-pile delivery system stacks finished sheets neatly, ready for the next stage of production. The precision coating mechanism applies a consistent film thickness across the full sheet, eliminating streaks, uneven coverage, and coating defects.

Precise Coating Thickness Control

Consistent coating thickness is critical for both appearance and protection. The KPZ series maintains uniform application across the full sheet width, ensuring that every sheet meets quality standards.

Fast Job Changeover

The machine supports quick changeover between different coating types and sheet sizes, reducing setup time and making short runs more economical.

What Production Managers Ask About Automatic Coating Machines

What types of coatings can the machine apply?
The KPZ series supports UV coating, water-based coating, and gloss coating — giving you flexibility across different job requirements and quality standards.

What is the maximum sheet size?
The KPZ1300XLW model handles sheets up to 1300×1650mm, while the KPZ650U handles sheets up to 650×740mm . Other models cover intermediate sizes.

What paper thickness can the machine handle?
The KPZ series handles paper from 80-500g/m², covering everything from lightweight paper to heavy cardboard .

What is the mechanical speed?
The machine delivers a mechanical speed of 100 meters per minute, with automatic feeding for continuous operation .

What are the pile heights?
Feeding pile heights range from 1000mm to 1360mm, and receiving pile heights range from 1000mm to 1300mm, depending on the model .

Get a Coating System That Matches Your Paper Range and Production Targets

Selecting a fully automatic varnish coating machine comes down to three factors: coating type (match your application), sheet size (match your format), and paper weight range (match your substrate). Contact Gaoke Machinery for a customized quote → —their team can help you select the right KPZ series configuration for your specific print finishing needs.

Gaoke Machinery manufactures a range of print finishing equipment, including the KPZ Series Fully Automatic Format Varnish Coating Machine. The series includes models from the compact KPZ650U (650×740mm) to the large-format KPZ1300XLW (1300×1650mm), handling paper from 80-500g/m² at mechanical speeds of 100m/min. The machines feature automatic sheet feeding, high-pile delivery up to 1360mm, and support for UV, water-based, and gloss coatings. Applications include packaging, commercial print, folding cartons, and specialty print finishing. Gaoke Machinery provides comprehensive technical support, installation guidance, and after-sales service. Connect with Gaoke Machinery to discuss your sheet size requirements, coating preferences, and production volume targets.