Professional Plastic Pipe Fitting Mould Manufacturer With 20 Years Of Experience - Spark Mould
Mould Case
Welcome to Spark Mould's injection mold solutions and engineering case gallery. We specialize in delivering high-precision custom injection mold engineering across a broad spectrum of industries. Browse our portfolio below to explore real-world injection mold case studies that demonstrate our capabilities in complex mold structures, multi-cavity systems, hot runner technology, and innovative core-pulling mechanisms. Whether you need a multi-cavity or a structurally complex industrial part mold—our engineering team works closely with you from concept to mass production, ensuring your project succeeds at every stage.
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Manufacturing dual-material plastic button keycaps requires precise control over both structural integrity and tactile feel. This case study details the engineering of a highly efficient multi-component mold designed to produce ABS and TPU overmolded keycaps.
This project required the seamless integration of hard plastic (PP) and a soft elastomer (TPE), combined with multi-directional mechanical actions to handle both internal and external threads, as well as side ports. Here is an in-depth look at the tooling engineering and mold structure that made this possible.
This article documents the mold structure, gating system, cavity layout, and complete 18-step molding sequence. It is intended as a reference for mold designers, process engineers, and tooling project managers.
This mold case study reviews a two-shot injection mold for an automotive interior trim component. The part is molded first in PC as the rigid substrate, then overmolded with TPE as the soft-touch functional layer.
Producing a 180° elbow (Return Bend) pipe fitting from Polypropylene (PP) presents a fundamental molding challenge: how do you retract a solid core from a deeply curved tubular geometry without relying on complex, maintenance-intensive rotational mechanisms?
Explore our comprehensive engineering case study on a high-efficiency stack mold for plastic ice cream lids. Features a complex hot runner transfer system, synchronous rack-and-pinion opening, and dual parting lines for high-volume thin-wall packaging.
Discover a high-efficiency 16-cavity thin-wall (0.6mm) packaging cap mold design. Features an optimized 4-drop semi-hot runner system, submarine gating, and a dual-stage forced ejection mechanism for automated, high-speed production without sliders.
Discover the advanced tooling design for a 2000ml food-grade PP cheese bucket mold. Features a 1-drop valve gate hot runner, innovative sub-cavity spring sliders for side handles/tear tabs, and a specialized rocker-arm ("seesaw") two-stage ejection system for seamless forced stripping.
Explore the engineering breakthrough behind this 16-cavity PET preform precision mold. Featuring a balanced 16-drop hot runner system, annular cooling inserts, and an innovative dual-stage mechanical split-cavity cam track for flawless external thread release.
Explore a case study on a plastic turnover box mold. This technical case study analyzes the four-cavity mold structure and the coordinated operation of the lifting mechanisms designed for demolding complex chamfered features.
Explore a technical case study of a high-precision 16-cavity hot runner mold for PP living hing caps. Features an advanced 3-layer nested core, hydraulic rack-and-gear automatic unscrewing, and an automated In-Mold Closing (IMC) system to eliminate post-molding assembly.
Explore an in-depth technical case study of a precision 48-cavity PET preform mold featuring a synchronized split-cavity mechanism, 48-drop hot runner system, and annular cooling inserts for optimal cycle efficiency.
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