HVAC Whole system injection Molds

HVAC System Housing Injection Mold – Mold Description 1. Application & Function This mold is designed for producing plastic housings and structural components of automotive HVAC systems, including air ducts, blower covers, evaporator housings, and heater cores. The parts require stable dimensional accuracy, low warpage, and excellent sealing performance to ensure long-term reliability of the HVAC system in real driving conditions. 2. Mold Design Highlights Multi-cavity or single-cavity layout optimized according to part size and annual volume Multiple sliders, lifters and inserts to form deep ribs, undercuts and complex air channels Optimized parting line and sealing surfaces to reduce flash and post-trimming work Rigid mold structure to minimize deformation during high-pressure molding cycles 3. Steel & Mold Base Mold steel selected according to required tool life and resin type (typically H13 / 1.2343 or equivalent for core and cavity) Mold base made from pre-hardened steel for stability and easy maintenance All critical components with material certificates and hardness reports available upon request 4. Runner, Gate & Cooling System Hot runner or semi-hot runner system available to reduce material waste and improve filling balance Gate type and position (e.g., edge gate, submarine gate, valve gate) optimized to control flow marks, weld lines and warpage High-efficiency cooling circuits placed close to thick areas and ribs to reduce cycle time and keep part dimensions stable 5. Venting & Part Quality Sufficient vents and vacuum options at flow ends and rib intersections to prevent burn marks and short shots Special attention to sealing surfaces and clip areas to ensure proper assembly with mating HVAC components Dimensional and appearance check fixtures available to support stable mass production 6. Process Capability & Validation Mold designed to meet OEM/aftermarket requirements for dimensional accuracy and air-tightness T1 mold trial with full process window study, including packing, cooling and demolding optimization Capability study (e.g., Cpk on key dimensions) and sample inspection reports can be provided according to customer requirements 7. Production & Service Support Mold suitable for standard injection molding machines with automatic ejection and, if required, robotic part picking Clear maintenance guidelines and spare parts list supplied with each mold Engineering support available for DFM review, tooling optimization and on-site/remote start-up assistance