Products
Packaging Knives for Food Packaging Machines
Cut-off, perforation, sealing and film cutting blades for food packaging machinery.
Packaging Blades
Cut-off, perforation and film-cutting requests need different edge and mounting information. Confirm the cutting action, packaging material and machine position before choosing a replacement.
Typical Applications
Typical Equipment
Materials
Material and hardness should match film, paper, composite packaging or frozen-food line needs.
Edge Geometry
Serrated, perforation and straight cut-off edges can be made according to the packaging action.
Buyer Answer
What should a food packaging knife specification include?
For cut-off, perforation, sealing and film slitting knives, confirm blade length, tooth or perforation pitch, hole position, edge geometry, packaging material and line speed before sampling or batch production.
- Blade length and mounting position
- Tooth profile or perforation pitch
- Film material and operating speed
Choosing a replacement packaging knife
Start with the machine’s cutting action and the packaging material. Use the following checklist to prepare a specification; final geometry, material and fit need confirmation against the drawing or sample.
- Straight cut-off
- Confirm the cutting action, supported film path and mating surface. Supply edge direction and bevel details from the existing drawing or blade.
- Serrated
- Supply a close-up of the teeth, tooth pitch, tooth height and orientation. Matching blade length alone does not confirm an equivalent cutting profile.
- Perforation
- Specify the intended cut and uncut pattern, pitch and required tear behavior. Include a sample of the finished packaging as well as the blade.
What to measure before requesting a quote
- Overall size
- Record length, width and thickness with units. Identify worn or damaged areas; an old blade may not preserve the original dimensions.
- Mounting
- Record hole diameters, slots and center-to-center distances from a clearly identified reference edge. Include front, back and side views.
- Cutting edge
- Identify bevel side, cutting direction and tooth or perforation profile. A photo supports identification but does not replace critical measurements.
- Operating conditions
- Provide the packaging material specification, thickness, machine model, cutting position and operating speed, including units.
If the film tears or the cut is incomplete
Record when the problem began and whether the film, blade or machine settings changed. Share photos of the cut and the removed blade, plus the current material and speed. These details help distinguish a specification mismatch from wear or an installation issue. Have qualified personnel inspect the machine under its prescribed shutdown procedure.
Confirm a sample before repeating the order
Agree the drawing revision, critical dimensions, material and hardness requirements, inspection documents and sample acceptance criteria. Evaluate fit and cutting results with the intended packaging material. Confirm quantity, sample timing and batch delivery for the specific order.
Quote-ready specification
These are the details we normally confirm before sampling or batch production.
- Drawing / sample
- Drawing, old blade photo, used blade sample or equipment model can be used as the starting point.
- Key dimensions
- Serration profile / Perforation pitch / Blade length / Mounting holes / Cut-off edge
- Machine fit
- Flow wrappers / Tray sealers / Form-fill-seal lines
- Material / hardness
- Material and hardness should match film, paper, composite packaging or frozen-food line needs.
- Edge geometry
- Serrated, perforation and straight cut-off edges can be made according to the packaging action.
- Quantity / delivery
- Target quantity, sample deadline, batch delivery date and packaging request.