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Tungsten Carbide Pentagonal Blade: 5 Cutting Edges

Sollex P877 Tungsten Carbide Pentagonal Blade 

Industrial manufacturers working with woven polypropylene, polyethylene films, fibers, paper packaging and AD STAR sack production require stable cutting quality to ensure predictable results. Sollex P877 tungsten carbide pentagonal blade is engineered specifically to meet these needs, ensuring clean penetrations, long lifetime and consistent productivity. 

From cement bag manufacturing to polypropylene tape fabrics and woven PP sacks, converters use the knife to maintain consistent edge quality. This five edged cutting knife performs both entry penetration and separation phases cleanly.




What Makes P877 Different: Why Manufacturers Choose It

The P877 pentagon knife is not a conventional circular cutting knife. It is a solid tungsten carbide 5 edged cutting knife with 5 sharp penetration points. As the blade rotates, each point enters the substrate gradually, delivering smooth separation. This allows manufacturers to process thicker materials with reliable stability and minimal cutting force. Sollex P877 is especially effective in woven and coated PP substrates.

Functional advantages of P877:

  • smoother penetration into multilayer substrates
  • fewer cutting defects and fewer rejected sacks
  • controlled entry performance in coated PP, HDPE fabric, cardboard, films

P877 pentagonal knife is made from solid tungsten carbide of high quality, delivering outstanding wear resistance and extended lifetime. This five-edged machine knife for packaging results in fewer blade changes, less downtime and predictable output.





Applications of Pentagonal / 5-Edged Knife P877

The Sollex P877 was developed together with industrial manufacturers and is suitable as a replacement for the Lutz 2650.0530 blade or similar. It integrates seamlessly into Starlinger ad* starKON lines, Windmöller and Hölscher ProTex Convertex systems and AD Convertex production lines. As a machine knife with 5 cutting sides for Starlinger, Windmöller and Hölscher machines, it ensures precise cutting in the manufacture of AD STAR block bottom valve sacks.

Sollex P877 machine knife with 5 cutting edges handles woven polypropylene tubes, coated polypropylene tape fabric, tubular PP and HDPE fabric, polypropylene and polyethylene film, nonwovens, fibers and paper packaging. This makes it a practical pentagonal knife for converters working across different substrates.

The P877 is used for: 

  • AD STAR sack cutting 
  • cement bag packaging 
  • woven PP conversion 
  • nonwoven production 
  • paper and film converting

Typical material groups:

  • woven polypropylene 
  • tubular PP or HDPE fabric 
  • coated PP tape fabric 
  • polypropylene and polyethylene film 
  • nonwovens and fibers 
  • paper, cardboard packaging




Dimensions of Sollex Pentagonal Knife P877

Tungsten Carbide Pentagonal Knife for sack and bag making machines - Sollex P877 drawingDimensional precision is critical for stable mounting and controlled rotation in converting lines. The exact dimensions of the P877 are:

  • length 41 mm
  • outer diameter 63.23 mm
  • thickness 0.50 mm
  • geometry angle 108 degree
  • 2 mounting holes with diameter 4 mm positioned 12.45 mm from the center
  • 1 large central hole with diameter 10.35 mm

These tolerances ensure reliable positioning, reduced vibration and consistent cutting performance.




Packaging and Supply

Sollex supplies the P877 individually packed in protective plastic bags, with 10 knives per outer package for safe handling and storage at the production facility.




Why Sollex

Coated and uncoated machine knives and converting blades of stainless and carbon steel for industrial applications - SollexSollex AB is a Swedish manufacturer and supplier of industrial knives and blades founded in 1927 and based in Malmö. The company provides both standard blades and tailor made cutting solutions for production lines in packaging and converting industries worldwide. Sollex focuses on reliable cutting performance, long tool lifetime and predictable quality in automated manufacturing environments.

Sollex produces circular knives, machine knives, razor blades, slitting blades and specialized cutting tools for plastic film, paper, woven materials and other substrates used in industrial packaging and converting. The company supports extrusion, manufacturing, packaging, slitting, rewinding and converting processes with cutting solutions designed for consistent results.

For more information about the Sollex P877 or other cutting solutions, contact us and our team will help you find the right blade for your production.




FAQ

Q: What materials can the Sollex P877 blade cut?

A: The P877 cuts woven polypropylene, tubular PP and HDPE fabric, coated PP tape, polypropylene and polyethylene films, nonwovens, fibers and paper based packaging.

Q: Which machines use the Sollex P877?

A: The P877 runs in Starlinger ad starKON, Windmöller and Hölscher ProTex Convertex and AD Convertex lines and can replace Lutz 2650.0530.

Q: What are the exact dimensions of the P877?

A: Dimensions are 41 x 63.23 x 0.50 mm with a 108 degree angle, 2 mounting holes Ø4 mm located 12.45 mm from the center and 1 central hole Ø10.35 mm.

Q: Why is tungsten carbide used for this blade?

A: Tungsten carbide gives long service life, stable cutting performance and reduced downtime compared to conventional steel blades.

Q: How is the Sollex P877 delivered?

A: Each knife is packed individually in protective plastic. 10 pieces are packed per outer package.

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