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Help CenterOEM Plastic Threaded Cap Mold With Knurling, CMM Inspected Tooling for Consistent Quality in Injection Molding
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Changzhou Hongxinyutai Precision Mold Co., Ltd. – a dedicated manufacturer since 2017 – proudly presents our OEM Plastic Threaded Cap Mold with Knurling, a precision tooling solution designed for high‑volume injection molding. Every mold undergoes rigorous CMM (Coordinate Measuring Machine) inspection to ensure dimensional accuracy and repeatable quality. Our expertise in threaded cap tooling, combined with advanced knurling patterns, delivers a secure grip and aesthetic appeal for your packaging. Whether you need a standard cap or a customized closure, our mold guarantees consistent performance and long service life.
This mold is engineered to produce plastic threaded caps with precise thread geometry and uniform knurling. The tooling is built from premium tool steel (options include P20, H13, or S136) and is fully customizable in cavity count, gate design, and cooling layout. Each mold is CMM‑inspected before shipment, assuring that every dimension meets your specifications. Our quality management system is certified under TS16969, reflecting our commitment to automotive‑grade precision.
Key Features & Technical Specifications
- Knurling Pattern: Diamond, straight, or custom – enhances grip and branding.
- Thread Types: Buttress, square, or standard metric/imperial threads.
- Cavity Count: 1‑cavity, 4‑cavity, 8‑cavity, or more – tailored to your production volume.
- Mold Base: Standard LKM or DME, or custom configuration.
- Cooling System: Baffle, spiral, or conformal cooling for uniform temperature control.
- Ejection System: Stripper plate, ejector pins, or air‑assisted, depending on cap design.
- Runner System: Cold runner or hot runner (optional) with valve gate.
- Surface Finish: SPI grades A‑1 to D‑3, with optional textured finish via EDM.
- Inspection: 100% CMM check on critical dimensions, report provided.
Technical Parameters (Example for a 4‑cavity mold)
| Parameter | Value |
|---|---|
| Mold Weight | Approx. 800 kg |
| Mold Size (L×W×H) | 600×500×450 mm |
| Cavity Steel | H13 (1.2344) hardness 48‑52 HRC |
| Cycle Time Estimate | 8‑12 seconds (PP material) |
| Injection Machine Compatibility | 80‑160 ton |
| Warranty | 1 year on workmanship & material |
Benefits for Your Production
- Consistent Quality: CMM inspection guarantees that every cavity produces identical caps within tight tolerances (±0.02 mm).
- Reduced Downtime: Robust construction and optimized cooling shorten cycle times and extend mold life (1,000,000+ shots).
- Flexibility: We accept design modifications – add a tamper‑evident band, a liner, or a custom logo embedded in the knurling.
- Cost Efficiency: Multi‑cavity molds lower per‑part cost while maintaining high repeatability.
- Global Logistics: Shipped from Jiangsu, Shanghai, or Shenzhen with fast delivery to North America, Europe, and Asia.
Why Choose Changzhou Hongxinyutai?
Established in 2017, we operate a 1,000‑3,000 m² factory with a dedicated team of 51‑100 skilled employees. Our TS16969 certification reflects our systematic approach to quality. We have served markets across North America, South America, Europe, Africa, and Oceania, delivering reliable tooling for injection molding. Our reputation is built on on‑time delivery, responsive communication, and technical support. With our CMM‑inspected threaded cap mold, you get a tool that performs consistently from the first shot to the millionth. Contact us today to discuss your cap design and receive a competitive quotation.
Frequently Asked Questions
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Q: What materials can be used with this mold?
A: The mold is compatible with common thermoplastics such as PP, HDPE, LDPE, ABS, and nylon. For high‑temperature materials like PC, we recommend hardened steel cavities (H13 or S136). -
Q: Can I customize the knurling pattern?
A: Yes, we offer diamond, straight, spiral, or custom‑engraved patterns. Just provide a drawing or sample, and we will replicate it precisely. -
Q: How is the CMM inspection performed?
A: We use a Zeiss CMM (or equivalent) to measure all critical dimensions – thread pitch, diameter, knurling depth, and overall concentricity. A full inspection report is included with every mold. -
Q: What is the typical lead time?
A: Standard lead time is 30‑45 days for a single‑cavity mold, and 45‑60 days for multi‑cavity or complex designs. Rush orders are possible upon request. -
Q: Do you provide mold trial support?
A: We can arrange a trial run at our facility or send a technician to your site. Video recording of the trial is also available. -
Q: Is the mold suitable for food‑grade caps?
A: Yes, the mold can be built with FDA‑approved steel and polished to a high gloss to prevent material buildup. The final part will comply with food contact regulations depending on the resin used. -
Q: What warranty do you offer?
A: We provide a 1‑year warranty against defects in workmanship and material. After that, we offer cost‑effective spare parts and maintenance services. -
Q: Can you help with the cap design?
A: Absolutely. Our engineering team can assist with DFM (Design for Manufacturing) analysis, including draft angles, wall thickness, and gate location optimization.
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