Foliant Mercury 400 NG 4x4 Double-Sided Laminator

The Foliant Mercury 400 NG 4x4 is a compact, double-sided thermal laminator built for commercial and industrial print finishing. The 4x4 configuration laminates both sides of a sheet in a single pass, so digital and offset work comes off the line finished front and back without a second handling step. It is engineered for print shops that need a durable, space-saving machine that keeps pace with short- and long-run production. Mid-State Litho is a factory-trained, authorized Foliant dealer, so the machine arrives configured for your shop with installation, operator training, and after-sale service included.

The Mercury 400 NG 4x4 pairs automatic suction feeding with twin adjustable de-curling, giving you clean sheet separation and flat output on both coated offset stocks and digital toner sheets. Operation runs through a PLC-driven touchscreen interface, so job setup and recall stay simple for any operator. The result is consistent double-sided lamination across flyers, brochures, book covers, folding cartons, and retail signage. As your finishing needs grow, the Mercury 400 NG 4x4 fits alongside the rest of your bindery line. It sits within our broader range of commercial laminators, and depending on your format and media you may also evaluate wide-format laminators, roll laminators, or pouch laminators. Because this is a quoted production system, our team scopes the right configuration, freight, and on-site setup before you commit.

About Foliant Mercury NG Laminators

Foliant is a Czech manufacturer of commercial and industrial laminating equipment, and the Mercury NG family is its compact, high-build line of automatic sheet laminators. Within that family the Mercury 400 NG 4x4 is the entry compact double-sided model, built on the 400 working width, and it steps up to the wider Foliant Mercury 530 NG 4x4 when a larger format is required. Mid-State Litho is an authorized dealer for the full Foliant lamination equipment range and supports each machine with factory-trained service. The Mercury NG line is a natural anchor for a finishing department and integrates cleanly with the rest of your bindery & finishing equipment.

Single-Sided vs Double-Sided (4x4) Lamination

The "4x4" designation means the machine laminates both faces of a sheet in one pass, which is what double-sided lamination refers to. A single-sided laminator finishes only the top face, so a two-sided job has to run twice; the double-sided 4x4 machine completes both faces in a single workflow, cutting handling and improving registration on jobs that need a finished look front and back. Choose double-sided 4x4 when you regularly finish two-sided covers, presentation pieces, menus, or premium mailers. If your work is almost always one-sided, the single-sided Foliant Mercury 400 NG sibling covers that case and is a separate model from this page. This PDP is firmly the 4x4 double-sided unit. When you scope a purchase, weigh your typical sheet size, media mix, and throughput so the configuration matches how your shop actually runs.

Key Features

• Double-sided thermal lamination - finishes both faces of digital and offset sheets in a single pass.
• Automatic suction feeding - servo-driven feed with bump separation for reliable, high-volume sheet handling.
• Twin adjustable de-curling - keeps both offset stocks and digital toner output flat after lamination.
• PLC touchscreen control - icon-based operation for fast job setup and recall by any operator.
• Wide film compatibility - runs standard thermal laminating films matched to your stock and finish.
• Compact production footprint - industrial-grade build in a space-saving format for busy print shops.

Why Buy the Mercury 400 NG 4x4 From Mid-State Litho

• Second-generation, family-owned Michigan dealership founded in June 1984, serving the Great Lakes region.
• Authorized Foliant dealer with factory-trained installation, operator training, and in-house service - not a drop-ship box.
• Factory-backed parts, films, and consumables kept on hand to keep your equipment running.
• Financing and lease options available, with real phone support when you need it.

Mid-State Litho handles freight, installs the machine, trains your operators, and services it after the sale. Request a quote and we will scope the right Mercury 400 NG 4x4 configuration for your shop.

Frequently Asked Questions

Is this the single- or double-sided Mercury 400 NG?

This is the 4x4 double-sided unit, which laminates both faces of a sheet in one pass. A single-sided Mercury 400 NG is a separate model with its own product page.

What sheet sizes does it handle?

The Mercury 400 NG 4x4 is built on the 400 working width for commercial and industrial print finishing. Share your typical sheet sizes and stock when you request a quote and we will confirm the configuration that fits your work.

What feeder does it use?

It uses automatic suction feeding with bump separation, delivering reliable sheet pickup and clean separation for high-volume runs.

Does Mid-State Litho install and train?

Yes. As an authorized, factory-trained Foliant dealer we provide installation and operator training across Michigan and the Great Lakes, plus ongoing service after the sale.

Is financing available?

Yes. Financing and lease options are available. Ask our team when you request a quote and we will walk through the options for your shop.