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Constructed from high-strength H13 tool steel (ASTM A681) with chromium nitride (CrN) coating, these molds excel in high-pressure injection environments, delivering consistent performance for thick-walled, heavy-weight preforms.
Robust Structural Design: Reinforced base plates and tapered guide pillars support 50+ tons of clamping force, preventing deflection during injection and ensuring uniform wall thickness (tolerance ±2%).
Enhanced Heat Dissipation: Integrated beryllium-copper cooling inserts reduce cycle times by 30% for 1-gallon preforms, maintaining optimal melt temperatures (240-290°C) for HDPE/PP materials.
Wear-Resistant Surface: CrN coating (5-8μm thickness) increases hardness to 2000 HV, extending mold life to 50,000+ cycles even when processing filled resins (talc, calcium carbonate).
Leak-Proof Neck Design: Patented double-lip seal system eliminates flash formation at the neck ring, ensuring airtight compatibility with industrial spigots and child-resistant caps.
Industrial Lubricants: Used for producing preforms for 5-gallon oil drums, ensuring chemical resistance to petroleum-based products and UV stability.
Agricultural Chemicals: Ideal for 2-gallon pesticide containers, with material compatibility for harsh formulations (sulfuric acid, glyphosate) per EPA standards.
Household Essentials: Forms preforms for 1-gallon detergent jugs and water cooler bottles, supporting ergonomic handles and stackable base designs.
Q: What is the maximum preform weight these molds can handle?
A: Capable of producing preforms up to 1000g (for 5-gallon HDPE), with melt flow rate compatibility up to 15 g/10min (ASTM D1238).
Q: How often should the molds be lubricated?
A: We recommend greasing guide pillars and ejection systems every 500 cycles using food-grade lubricants to maintain smooth operation.
Q: Can they be used with recycled resin materials?
A: Yes, the CrN coating resists abrasion from recycled pellets (up to 100% PCR content), with minor adjustments to cooling parameters.
