Email: Mb@mingbaiblade.com
Tel.: +86-13855519988This serrated packaging knife is a core cutting component for pouch‑making machines. Its long serrated edge is designed for continuous pouch cutting, severing plastic film, composite film and paper packaging substrates. With precise tooth‑profile grinding and complete heat treatment, the blade delivers sharp, evenly‑spaced teeth for fast cutting at high speed. It reduces film stringing, pouch tearing and burr defects. Custom options fit various line speeds and materials to improve pouch cut‑edge quality.
Product Name :
Serrated Long‑Blade Cutter for Automatic Packaging MachineryOrder(MOQ) :
1PCSPayment :
T/T,Western union,Alibaba,International Bank TransferMaterial :
Cr12MoV、SKD‑11Shipping Port :
Shanghai/Guangzhou or otherOEM/ODM :
support
Product Overview
Serrated packaging knives are vital components for continuous pouch‑making processes. Long serrated edges separate finished pouches. Tooth‑profile accuracy and edge condition directly govern pouch cut quality and line stability.
Long‑Serrated Profile Grinding
Integrated long‑serrated grinding ensures consistent tooth angle and pitch across the full cutting length, with burr‑free, undamaged tooth tips. The long serrated section slices wide packaging substrates instantly for high‑speed reciprocating cutting and minimizes material stretching.
Heat‑Treated Edge Performance
Full heat‑treatment balances hardness and impact toughness. It lowers risks of tooth chipping and rapid edge dullness under repeated reciprocating cutting, reducing production downtime for blade replacement.
Multi‑Substrate Cutting Compatibility
Tooth geometry is optimized for diverse packaging materials including plastic film, aluminum‑plastic composite film, paper and non‑woven fabric. It produces tidy pouch edges and mitigates common defects such as stringing, trailing and burrs.
Dual‑End Mounting Structure
Standard mounting holes at both ends fit most vertical and horizontal pouch‑making machines. Finished mounting surfaces ensure firm assembly and resist offset during high‑speed reciprocating movement for consistent cutting accuracy.
Custom Specification Service
Customizable according to line speed, cutting material and machine mounting dimensions. Adjustable parameters include serrated working length, tooth pattern and end mounting holes to satisfy varied pouch‑making requirements.
Optional Surface Enhancement
Polishing or wear‑resistant coating options improve surface smoothness to reduce film adhesion, enhance rust protection and boost overall wear performance.
Our production process:

1.Cutting
2.Forging
3.Plastic surgery
4.Heat treatment
5.Modification
6.Slice
7.Initial grinding
8.Sharpen
9.Plastic surgery
10.Fine grinding
11.Plastic surgery
12.Chamfer
13.Test
14.Package
15.Factory

Our products serve all walks of life:
Suitable for cartons, corrugated paper, gift boxes, advertising industry chevron board, KT board, cardboard cutting, clothing fabrics, carbon fiber and glass fiber, various papers, films, PET, automobile wire ring mats, various composite materials fully surrounded mats, rubber, gray board, plastic, embroidery materials, automobiles, carriages, papermaking, textiles, metallized film, tobacco, packaging materials, BOPP film, food machinery, medicinal materials, aluminum foil, metallized film, tobacco, electronics, light industry, food, leather, chemical fiber, glass fiber, textiles, stationery, plastics, feed, paper tubes, cartons, woodworking and other industries.

Packing&Shipping
Efficient logistics and distribution: We use fast and reliable logistics partners to ensure that your order can be delivered in time. We work with world-renowned logistics companies to provide flexible logistics options and full tracking services so that you can always know the shipping status of your goods.
FAQ:
Q1: What causes constant film stringing when using serrated packaging knives?
A: Usually caused by dull worn teeth, incorrect tooth pitch or loose blade assembly. Check tooth condition and mounting tightness first.
Q2: Can this long serrated knife cut thick aluminum‑plastic composite pouches?
A: Yes, adjusted tooth profiles work for composite films. Select higher‑toughness material grades for extra‑thick composite substrates.
Q3: How often should serrated packaging knives be resharpened or replaced?
A: Service life depends on material and line speed. Resharpen or replace when frequent burrs and incomplete cuts appear on pouch edges.
Q4: Are non‑standard length and mounting‑hole configurations supported?
A: Yes. Custom serrated length, tooth pattern and end‑hole structures are available. Please provide machine drawings and cutting‑material parameters.
Q5: What checks should be done before installing a new serrated packaging knife?
A: Inspect all teeth for chipping, clean burrs and dirt from both mounting ends, confirm flat tool holder, lock securely before machine commissioning.
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