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Premium Industrial Shear Blade for Container Glass Manufacturing
High-performance shear blades engineered for the precise cutting of molten glass gobs in high-volume container glass production.
- Material Options & Grade:
- Vacuum-Hardened HSS (M2 / M35) & Micro-Grain Tungsten Carbide
- Hardness & Thermal Stability:
- 62-67 HRC (Rated for 1000°C+ / 1832°F+ Thermal Cycling)
- Cutting & Relief Angles:
- Straight, 30°, 45°, and Compound Relief Geometries
- Surface Finish & Polish:
- Bead-Blasted Matte Finish (Ra 0.8-1.2 μm) for Shear Spray Retention
- Compatibility & Matching:
- IS Machine Feeders (Emhart, Bucher, Bottero) Ground in Paired Sets
Applicable StandardsASTM / ASME B359, SB359, B111, B444, DIN EN 12451
Tooling Material GradesCr12MoV, D2, SKD11, High-Speed Steel M2, Carbide
Precision Tolerance±0.005 mm (±0.0002 in) Ground Finish
Compatible TubingCopper (C70600, C71500), Stainless Steel, Aluminum
Technical Specifications
High-Performance Materials
The choice of material is critical for shear performance. Nexmek offers both HSS and Tungsten Carbide variants to balance cost-effectiveness with extreme longevity.
- HSS (M2 / M35): Throughout-hardened for consistent performance and regrindability
- Tungsten Carbide (WC-Co): Up to 5x longer life for high-volume, continuous IS machine runs
- Heat-resistant alloys that maintain edge integrity at 1000°C+ (1832°F+) molten glass flow
Geometric Precision & Compatibility
Our blades are manufactured to strict tolerances to ensure perfect alignment within the feeder mechanism, reducing chatter and vibration.
| Feature & Tolerance | Standard Capabilities (Metric & Imperial) | Industrial Benefit & Standard |
|---|---|---|
| Parallelism | < 0.01mm (< 0.0004") | Balanced mechanical load & chatter-free cut |
| Edge Sharpness Radius | Micro-ground (0.005mm / 0.0002") | Clean gob separation with zero shear mark |
| Relief Grinding | Customized 30° / 45° Compound Angle | Eliminates finish blisters & lap defects |
| Shear Spray Retention | Bead-Blasted Matte (Ra 0.8-1.2 μm) | Prevents glass sticking & thermal shock |
Optimizing Production Yields
Using high-quality shear blades directly impacts the bottom line by reducing downtime and improving the quality of the final glass container.
- Consistent gob weight ensures stable wall thickness in bottles
- Less frequent blade changes mean higher machine uptime
- Compatible with all major glass forming machines (IS machines)
- Easy maintenance and support for regrinding programs