Polyurethane Clamping Jaws | ±0.05mm Positioning Accuracy, Full-Cushioning, Smart Bottle Holding System
- Bottle Diameter Range
- Standard: φ50–110 mm; extended models: φ30–150 mm
- Clamping Repeatability
- Positioning accuracy ±0.05 mm for consistent cap alignment
- Grip Stability
- Slippage rate <0.1%; surface friction coefficient adjustable between 0.4–0.8
- Bottle Protection
- Contact pressure ≤0.3 MPa; absorbs 3–8 J of impact energy; reduces breakage by 60–80%
- Durability
- Service life ≥3 million cycles; wear resistance 5–8× higher than nitrile rubber
- Material Resilience
- Compression set <10% after 22h at 70°C; retains elasticity under long-term use
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Polyurethane clamping jaws are critical for stable bottle holding and precise alignment in capping machines—their performance directly affects capping accuracy, bottle safety, and line efficiency. These components leverage the unique properties of polyurethane to strike the perfect balance between rigid clamping and gentle protection. In clamping performance, the material’s gradient deformation under pressure automatically adapts to bottle diameters from φ40–120mm, with clamping force uniformity ≤±15%. Adjustable friction coefficient (0.4–0.8) and anti-slip textures keep slippage rate below 0.1%. Repeatability of center position reaches ±0.05mm—ensuring perfect alignment between bottle neck and capping head. Bottle protection is exceptional: absorbs 3–8J of impact energy from bottle sway, reducing breakage by 60–80% for glass and PET bottles. Curved contact surfaces limit pressure to ≤0.3MPa, preventing clamp marks or label damage. Optional anti-static grades (volume resistivity 10⁶–10⁹Ω·cm) prevent dust adhesion. Durability and compatibility: 5–8x more wear-resistant than nitrile rubber, with a design life ≥3 million cycles. Compression set <10% (22h @ 70°C). Resists pH 2–12 cleaners (>90% property retention after 500h immersion). Fully compatible with Krones, KHS, Sidel, and other major platforms, supporting 300–1200 bpm lines. Optional pressure/position sensors enable predictive maintenance. Five core values—ultimate protection, precision stability, operational flexibility, smart management, and cost efficiency—deliver 30–40% lower total cost of ownership.
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