GP Mold leverages advanced mold manufacturing and high-tonnage injection molding capabilities to provide global companies with customized plastic parts solutions that are high-precision, high-strength, and highly consistent.
Precision, scalability and dependable quality for production and prototypes.
Tight tolerances and stable repeatability.
Rapid tooling and efficient scheduling.
ABS, PC, PP, PA, TPE and more.
Process control and full inspection.
Key messages paired with visuals to communicate capabilities.
GP Mold consistently applies precision engineering principles in the development of injection molds for pipe fittings. Through advanced CNC machining centers, EDM electrical discharge machining, wire cutting, and coordinate measuring machine (CMM) inspection systems, we ensure high consistency and repeatability in the mold cavities, cores, thread structures, parting lines, and critical functional surfaces. Mold manufacturing tolerances are stably controlled within ±0.02mm–±0.05mm, meeting the stringent precision requirements of high-pressure sealing, threaded connections, thin-walled pipe fittings, and complex flow channel structures. This high-precision machining capability directly results in more stable wall thickness uniformity, reliable demolding, and reduced need for secondary processing, thereby improving customer production cycle times and product assembly quality.
GP Mold operates on a project-specific engineering development model, not using generic standard templates. Instead, we conduct DFM (Design for Manufacturability) evaluations, structural optimization, and material and process matching analysis based on customer-provided 3D CAD and 2D drawings, combined with expected production capacity, to customize the mold architecture. We support hot runner systems, two-color molding, gas-assisted molding, overmolding and insert molding structures, and multi-cavity mold development, ensuring that the connection methods, sealing requirements, vibration resistance needs, and appearance requirements of different piping systems are precisely met. This customized development model helps customers shorten mold validation cycles, reduce development risks, and ensure reliable scalability during mass production.
We utilize highly corrosion-resistant stainless steel and high-performance mold steel (such as 4Cr13H, 718H, H13, S136, 2344), combined with controlled quenching and tempering, nitriding, and PVD/TiN surface coating processes. This gives our molds exceptional wear resistance, corrosion resistance, crack resistance, and thermal fatigue resistance. Even in long-term production environments with high-frequency injection molding cycles and temperature fluctuations, the molds maintain dimensional stability and surface integrity, significantly reducing cavity wear, parting line damage, and the risk of unplanned downtime. This helps customers achieve longer mold life and lower total cost of ownership (TCO).
GP Mold enhances pipe fitting molding efficiency through mold flow analysis and advanced cooling system design. During the mold development phase, we use CAE mold flow simulation to evaluate filling balance, pressure distribution, weld line location, and air entrapment risks, and optimize gate location and runner layout. The cooling system employs efficient heat transfer planning and temperature equalization design, shortening cooling cycles, reducing warping deformation, and improving dimensional stability. The molds are compatible with various injection molding machine platforms, allowing for seamless integration into customer production lines, ensuring high throughput, low defects, and high yield in mass production.
GP Mold utilizes an ISO 9001 certified quality management system, implementing rigorous testing and data recording at every stage, from incoming mold steel inspection and processing to mold assembly, surface finishing, T1 mold trial verification, and mass production. We ensure stable mold performance and high part yield rates through CMM, 3D scanning, visual inspection, mechanical testing, and molding validation systems, and provide final acceptance support before global shipment. Furthermore, we have a responsive after-sales technical support team that provides maintenance advice, fault analysis, and downtime recovery solutions to ensure the long-term stable operation of our customers' production lines.
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