Replacement Serrated Knife for Carton Sealers
These serrated tape knives are made for carton sealing, adhesive-tape cutting and packaging equipment. The blade body, mounting holes, tooth profile, pitch, cutting direction, material and hardness are confirmed together so the replacement knife matches the machine and tape.
Product Specifications
MEIRENTE serrated tape knives are precision-ground replacement blades for carton sealing, case taping, and industrial packaging equipment. Multiple tooth profiles, slots, notches, and mounting-hole patterns are available to match different machine configurations.
| Item | Specification |
|---|---|
| Product Type | Serrated tape knife / carton sealing blade / packaging machine knife |
| Material Options | High-speed steel, tool steel, stainless steel, tungsten carbide, and application-specific grades |
| Surface Finish | Precision-ground |
| Edge Type | Serrated tooth edge with machine-specific tooth pitch and profile |
| Mounting Options | Round holes, elongated slots, open slots, side notches, and custom mounting patterns |
| Equipment References | 3M, Aetna, Belcor, Bemis, Best Pack, Decca, Durable, EZ-Tek, Intertape, Little David / Loveshaw, M&H, MGL, Marq, Mantaray, S&R, and Tapeler |
| Application | Carton sealing, pressure-sensitive tape cutting, case taping, and packaging lines |
| Customization | Custom size, tooth geometry, slots, holes, notches, material, hardness, finish, and coating according to drawings or samples |
| OEM / ODM | Supported |
| MOQ | Flexible; confirmed according to specification, material, and order quantity |
Standard Sizes & Reference Profiles

Reference dimensions are shown as length × width × thickness in inches.
| Equipment / Pattern | Size (in) |
|---|---|
| Durable | 2.07 × 0.56 × 0.020 |
| Marq / Belcor / Decca | 2.37 × 1.00 × 0.060 |
| Belcor / Decca | 2.37 × 1.16 × 0.062 |
| Little David / Loveshaw | 2.45 × 0.976 × 0.062 |
| 3M | 2.55 × 1.18 × 0.059 |
| 3M | 1.25 × 1.64 × 0.060 |
| Tape knife | 2.60 × 1.25 × 0.039 |
| Little David / Loveshaw | 3.50 × 1.16 × 0.062 |
| 3M | 3.375 × 1.16 × 0.062 |
Customization & Service
| Model | Standard and custom serrated tape knives |
|---|---|
| Service | Drawing- and sample-based custom manufacturing |
How Buyers Describe and Specify This Blade
Industrial teams often use several names for the same blade family. We use those terms to identify the likely application, then confirm the final design from the drawing, sample and machine conditions.
Size and geometry. The terms “precision serrated tape knife”, “tooth-profile carton sealer blade” and “thin packaging tape cutting blade” usually describe geometry or configuration. Requests using “machine-fit serrated packaging knife” or “replacement toothed tape blade” should confirm critical dimensions and edge orientation.
Application and equipment. Buyers may search for “replacement knife for carton sealers”, “packaging tape cutting knife” or “adhesive tape serrated cutter” when identifying an application. For requests described as “toothed blade for carton sealing machine” or “carton packaging machine blade”, include the processed material, machine interface and required cut quality.
Custom and replacement supply. Sourcing language can include “serrated knife for automatic case sealer”, “custom serrated packaging blade” or “custom tooth-pitch serrated knife”. Requests using “OEM carton sealer knife from drawing” or “replacement serrated machine knife” should include an approved drawing or sample details before production.
The approved drawing and application conditions always control the manufactured blade specification.
How to Specify a Custom Serrated Packaging Blade
- Confirm overall length, width, thickness and mounting-hole positions.
- Provide tooth pitch, tooth form, cutting direction and a clear edge-profile image.
- Identify the carton sealer model and adhesive tape or packaging material being cut.
- Report tearing, missed cuts, tooth damage or service-life problems with the current knife.
Compare related serrated blades, or review the custom industrial knife manufacturing process before sending your drawing, sample details and required quantity.