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Welcome to Changzhou Hongxinyutai Precision Mold Co., Ltd. Since our establishment in 2017, we have specialized in crafting high-precision blow molds for the packaging industry. Our OEM Laundry Detergent Bottle Blow Mold with S136H core and cavity and sandblasted finish is a testament to our commitment to durability, precision, and cost-efficiency. Designed for high-volume production of detergent bottles, this mold delivers consistent wall thickness, excellent surface finish, and extended tool life, helping you reduce downtime and maximize output. Whether you are producing standard or custom-shaped bottles, our mold is engineered to meet your specific requirements with reliability and repeatability.
Key Features
- Premium S136H Steel: The core and cavity are crafted from S136H stainless steel, known for its superior corrosion resistance, high hardness (up to HRC 48-52), and excellent polishability, ensuring long-term performance even with aggressive detergent formulations.
- Sandblasted Surface Finish: The sandblasted texture on selected surfaces reduces glare and enhances grip during molding, while also providing a matte appearance that minimizes defects like sticking or dragging.
- OEM Customization: Fully customizable to your bottle design—neck finish, handle, base geometry, and capacity (from 250ml to 5 liters or more). We work with your 3D CAD files to produce exact replicas.
- Multi-Cavity Options: Available in single, double, or multi-cavity configurations to match your production volume requirements. Our molds are designed for high-speed blow molding machines (PET, HDPE, or PP).
- Precision Engineering: CNC machining with tolerances as tight as ±0.02 mm, ensuring uniform bottle weight and consistent dimensions across all cavities.
- Easy Maintenance: Modular design allows quick replacement of cores or cavities. Venting details are optimized to reduce scrap rates and improve cycle times.
Technical Specifications
| Parameter | Value / Range |
| Steel Grade | S136H (AISI 420 modified) |
| Hardness (HRC) | 48–52 |
| Surface Finish | SPI A3 (mirror polish) + sandblasted on selected areas |
| Mold Base | P20 or 2311 (standard); optional stainless steel |
| Cavity Quantity | 1, 2, 4, 6, 8 cavities per mold |
| Bottle Capacity | 200 ml – 5 L (customizable per design) |
| Mold Life | Up to 3 million cycles (under normal maintenance) |
| Compatible Materials | PET, HDPE, PP, PVC, and other blow molding resins |
Advantages for Your Production
- Reduced Cycle Time: Optimized cooling channels (water or oil) ensure even temperature distribution, cutting cycle times by up to 15% compared to standard molds.
- Minimized Defects: The sandblasted finish prevents sticking and reduces the risk of scratches or weld lines, resulting in higher yield and fewer rejects.
- Corrosion Resistance: S136H offers excellent resistance to acidic or alkaline detergents, so the mold does not rust or pit even after prolonged use.
- Cost-Effective Maintenance: Core and cavity inserts are replaceable individually, avoiding the need to scrap the entire mold. Spare parts are available from stock.
- Global Compatibility: Designed to fit most standard blow molding machines (e.g., Bekum, Kautex, SIPA, Aoki). Custom adapters can be provided per request.
Why Choose Changzhou Hongxinyutai Precision Mold?
As a dedicated manufacturer with over 7 years of experience in mold making, we operate a modern 1,000–3,000 m² facility staffed by 51–100 skilled professionals. Our team is proficient in CAD/CAM, CNC machining, EDM, and manual finishing. We have successfully shipped molds to North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East, serving clients in the detergent, cosmetic, food, and automotive sectors. Each mold undergoes rigorous quality checks, including dimensional inspection, hardness testing, and trial runs, before leaving our factory. Our TS16969 certification reflects our commitment to quality management systems, ensuring consistent output and traceability. We also offer comprehensive after-sales support: installation guidance, spare parts, and technical troubleshooting within 24 hours. Contact us today to discuss your laundry detergent bottle mold requirements—let us be your trusted partner in blow molding solutions.
Frequently Asked Questions
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Q: What is the delivery time for a custom S136H blow mold?
A: Typically, production takes 25–40 working days depending on cavity count and complexity. We can expedite for urgent orders upon request. -
Q: Can you make molds for non-standard bottle shapes?
A: Yes, we specialize in OEM custom molds. Simply provide your 3D model or sketch, and we will design and manufacture accordingly. -
Q: Is the sandblasted finish required, or can I choose another surface treatment?
A: The sandblasted finish is standard for this model, but we also offer polished, textured, or chrome-plated surfaces as optional treatments. -
Q: What is the minimum order quantity (MOQ)?
A: MOQ is 1 set (one mold). For multi-cavity molds or repeat orders, we offer volume discounts. -
Q: Do you provide trial runs before shipment?
A: Yes, we conduct trial molding at our facility and provide video proof of the bottles produced. Adjustments are made before final approval. -
Q: How do I maintain the mold during production?
A: Regular cleaning of the sandblasted surface with soft brushes and proper lubrication of moving parts is recommended. We supply a maintenance manual with every mold. -
Q: Can I use this mold for HDPE or PP bottles?
A: Absolutely. The mold is designed for both PET and polyolefins. For PET, additional cooling optimization may be required. -
Q: What is the warranty period?
A: We offer a 12-month warranty against manufacturing defects. Extended warranty plans are available.
Ready to upgrade your detergent bottle production? Send us your inquiry with your bottle design and target capacity. Our engineering team will respond within 24 hours with a technical proposal and competitive quotation. Trust Changzhou Hongxinyutai Precision Mold Co., Ltd. for reliable, long-lasting blow molds that deliver consistent quality batch after batch.
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