Folder-Gluer Belts
Crucial for box manufacturing applications.
Newtop Engineering’s folder-gluer belts deliver exceptional folding precision and superior machine performance. Available with a traction layer made from either polyamide or polyester composites, combined with durable NBR rubber covers, our extensive range is ideal for various applications, from box folding to tube winding.
Newtop Engineering’s folder-gluer belts offer excellent reversed bending properties, high abrasion resistance, and remarkable dimensional stability. With a consistent and secure grip, they ensure precise folding without leaving marks on the transported materials.
Folder-Gluer Belts
Newtop Engineering Flexfold polyester belts
Newtop Engineering’s versatile thermoplastic folder-gluer belts are ideal for a wide range of applications in carton and corrugated cardboard box folding, capable of handling machine speeds of up to 750 m/min.
Featuring a thermoplastic traction layer, Newtop Engineering’s Flexfold belts allow for reliable, adhesive-free Flexproof joining. This quick and simple process can be performed directly on the machine, eliminating the need for dismantling, minimizing downtime, and reducing costs. No extensive operator training is required. The joint zone and belt are completely homogeneous, ensuring flexible, abrasion-resistant belts that are easy to install and deliver top-tier performance.
- Outstanding dimensional stability and precise folding
- Adhesive-free joint (Flexproof method)
- Low energy consumption thanks to high longitudinal flexibility
- Excellent reversed bending and flex-fatigue properties
- Proven NBR rubber covers with good abrasion resistance
- No marking, and gentle treatment of goods


Polyamide folder-gluer belts
The design and production of Newtop Engineering’s polyamide folder-gluer belts are built on years of expertise with polyamide materials. These belts meet all the demands of standard box folding processes, featuring rubber covers that offer exceptional durability, strong positive grip, and the ability to withstand tough conditions. Additionally, these belts are well-suited for use in tube winding applications.
- Good dimensional stability and precise folding
- Proven NBR rubber covers with good abrasion resistance
- No marking, and gentle treatment of goods
Newtop Engineering folder-gluer belts with food compliance.
Newtop Engineering’s new thermoplastic folder-gluer belts, compliant with EU and FDA food regulations, ensure smooth and gentle handling of processed materials. These belts offer best-in-class abrasion resistance, exceptional surface durability, and low life-cycle costs. Designed for use in box-making machines, they are available in thicknesses of 3 mm and 4 mm.
- Outstanding dimensional stability
- High folding precision
- Excellent performance and machine output
- Precise and smooth handling of processed goods
- High abrasion resistance
- Long belt service life

Joining without adhesives
Are you looking to eliminate the hassle of handling glue and avoid complex joining procedures? Newtop Engineering can simplify your process, especially if you work in an environment where glue use is subject to regulatory requirements.
Our extensive folder-gluer belt range features an adhesive-free joining system, and you can learn more by downloading our detailed brochures.