WINKLER ENVELOPE MAKING MACHINES (W+D 26G)

Expand your stationery and paper converting operations with the highly dependable W+D 26G. If you are looking for top-tier W+D envelope machines for sale, this model is specifically engineered for the high-speed manufacturing of greeting card envelopes and small to medium sizes. We provide industrial winkler envelope making machines known for robust German engineering, seamlessly handling blank feeding, complex folding, accurate gumming, and high-volume delivery.

The journey from flat paper to a finished, functional product involves three specialized industrial stages. Our W+D envelope machines for sale fit perfectly at the end of this workflow as premier converting units.

1. The Printing Process

Before any folding happens, the paper must be printed. For commercial envelopes, this is typically done via offset lithography (for high-quality, vibrant graphics) or flexography (often used for high-speed, security tint printing on the inside). The ink is applied to large sheets or continuous paper webs, branding the material before it is cut.

2. The Die Cutting Process

Once printed, the paper must be cut into the exact shape required for the final product, usually a diamond or cross-shaped "blank".

• Flatbed Die Cutting: A hydraulic press stamps a custom-made wooden board fitted with sharp steel blades through a thick stack of printed paper, punching out the exact shapes simultaneously.
• Rotary Die Cutting: For ultra high-speed web production, a cylindrical die continuously cuts the paper as it unwinds.

3. Print Finishing & Converting (The W+D 26G Process)

This is where our winkler envelope making machines take over. They convert the flat, die-cut blanks into ready-to-use envelopes:

• Feeding: Pre-cut paper blanks are fed into the machine from a stack magazine.
• Folding & Scoring: High-speed cylinders and folding knives precisely score and fold the paper to create the side, bottom, and top seal flaps.
• Gumming (Gluing): The machine applies a permanent adhesive to the side and bottom flaps to form the pocket. It also applies a moisture-activated (or peel-and-seal) gum to the top flap.