T- shape Blades

T-shape blades for cardboard slotting and packaging lines, supporting clean and stable cuts.

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Customized sizes are available, according to your drawing or sample.

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Overview
Features
Parameters
FAQ
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YISHI T-shape blades are engineered for stable, high-precision cutting in automated packaging and converting lines. The T-shaped cross-section provides inherent rigidity, resisting deflection under load to maintain a consistent cut line. These blades are specified by maintenance teams and OEMs for form-fill-seal (FFS) machines, pouch-making equipment, and horizontal/vertical wrappers. Manufactured from tool steels such as D2 (Cr12MoV), M2 high-speed steel, or SKD11, each blade undergoes vacuum heat treatment to achieve a uniform hardness of HRC 58–62. The result is a cutting edge that balances wear resistance with toughness, reducing unplanned downtime in high-cycle applications.

T-Profile Rigidity
The T-shaped cross-section increases the section modulus, minimizing lateral deflection during the cutting stroke. This geometry is critical for maintaining cut quality on thin films and multi-layer laminates.
Vacuum Heat-Treated Steel
Blades are heat-treated in a vacuum furnace to HRC 58–62, depending on the steel grade. This process ensures a uniform hardness distribution and minimal distortion, preserving the blade's flatness and edge integrity.
Material Options for Application Fit
Standard grades include D2 (Cr12MoV) for general wear resistance, M2 HSS for higher-temperature cutting zones, and SKD11 for enhanced toughness. Tungsten carbide inserts are available for abrasive media.
Precision Ground Cutting Edge
The cutting edge is ground to a surface finish of Ra 0.4 µm or finer. This low-friction edge reduces adhesive buildup from packaging films and extends the interval between blade changes.
Custom Dimensions and Mounting
Blades are manufactured to customer drawings or OEM part numbers. Typical overall lengths range from 50 mm to 600 mm, with thicknesses from 2 mm to 12 mm. Bolt-hole patterns and slot dimensions are machined to order.

Take a Closer Look

Flexible Packaging
Pouch Converting
Label and Tape Converting
Tissue and Nonwoven Converting
General Industrial Shearing

Flexible Packaging
Installed as the stationary or moving knife in VFFS and HFFS bagging machines, cutting polyethylene, polypropylene, and laminated films. The T-shape blade provides the stiffness needed for clean cuts through gusseted or thick-gauge materials.
Pouch Converting
Used in stand-up pouch and zipper pouch machines for the final cut-off operation. The blade's rigidity ensures a straight, burr-free edge on multi-layer barrier films without crushing the pouch structure.
Label and Tape Converting
Applied in rotary or guillotine cut-off units for pressure-sensitive adhesive tapes and labels. The T-shape profile resists the bending forces generated during high-speed intermittent cutting.
Tissue and Nonwoven Converting
Mounted in log saws or cross-cut units for folded tissue products and nonwoven rolls. M2 HSS grades are specified here for their ability to retain hardness in the elevated temperatures of high-speed converting lines.
General Industrial Shearing
Custom T-shape blades are supplied for specialized shearing applications in rubber, foam, and thin-gauge plastic sheet cutting, where a rigid blade body is required to maintain cut accuracy over long production runs.

YISHI: Your Trusted Source for High-Quality T-Shape Blades

As an experienced manufacturer of machine tool blades, YISHI specializes in producing and exporting a wide range of high-performance cutting tools. Our primary offerings include T-shape blades; we also manufacture packing blades for VFFS, HFFS, and flow wrap lines, as well as round blades, food blades, crusher and shredder blades, and film slitting blades. We also provide customized toothed cutting molds tailored to your specific requirements. All of our blades are available in various dimensions, and we can create customized solutions based on your drawings and specifications.

Durable cutting tools with T-shaped edges

Technical Parameters

Technical Specifications

Dimensions	Overall length: 50–600 mm; width: 20–80 mm; thickness: 2–12 mm. Custom dimensions per drawing.
Materials	D2 (Cr12MoV), M2 HSS, SKD11, H13, tungsten carbide (inserts)
Hardness	HRC 58–62 for tool steels; up to 89 HRA for carbide
Tolerances	Dimensional tolerance ±0.02 mm on critical features; flatness within 0.05 mm over 100 mm
Surface Finish	Cutting edge ground to Ra ≤ 0.4 µm; body surface Ra 0.8 µm or as specified
Customisation	Manufactured to customer drawings, samples, or OEM part numbers. Specify material, hardness, edge angle, and mounting hole configuration.

Why Choose Yishi

YISHI manufactures T-shape blades in-house, from material sourcing through final inspection. We use vacuum heat treatment furnaces with controlled quenching to achieve consistent HRC values across the entire batch. Every blade is inspected for hardness, dimensional accuracy, and edge condition before shipment. We accept orders for single prototypes and full production volumes, with no minimum order quantity on custom designs. Lead times are based on the actual production schedule, not inflated estimates. Our engineering team reviews each drawing for manufacturability and will propose alternative steel grades if a different material would improve blade life in your specific application.

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Frequently Asked Questions

What steel grade should I select for cutting LDPE film?

D2 (Cr12MoV) at HRC 58–60 is the standard choice for low-density polyethylene and most general packaging films. It provides an effective balance of edge retention and corrosion resistance. For abrasive or filled films, M2 HSS or a carbide-edged blade may be more suitable.
Can you match the bolt pattern on my existing T-shape blade?

Yes. We manufacture blades to your drawing or a sample of your current blade. Provide the hole diameters, center distances, and any counterbore or countersink specifications. We will replicate the pattern exactly.
What is the typical lead time for a custom T-shape blade order?

Lead times depend on the complexity, material, and current production queue. A typical custom order ships within 15–25 working days after drawing approval. We provide a confirmed delivery date with every quotation.
Do you offer re-sharpening services for T-shape blades?

We focus on manufacturing new blades to the original specifications. Re-sharpening is not a standard service we offer, as the T-shape geometry often requires precise fixture grinding to maintain the original cut height and angle.
What hardness range do you recommend for cutting multi-layer laminates with aluminum foil?

For laminates containing aluminum foil, we typically recommend M2 HSS or SKD11 at HRC 60–62. The higher hardness resists the accelerated edge rounding caused by the abrasive foil layer. Carbide inserts are an option for extremely high-volume runs.