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Injection Molding

Multi-Blade Impeller | Radial Slide Precision

High-Precision Single-Cavity Injection Mold for Industrial Multi-Blade Impellers | JST Mould Solutions

Specifications

Mold Steel:
1.2344 ESR / S136 (Vacuum Hardened HRC 48-52) for maximum wear resistance against high-glass-fiber resins.
Injection System:
Balanced center-gating hot runner system to ensure uniform material density and superior dynamic balance.
Mechanism:
Complex radial synchronized slide system designed for multi-blade undercut release with zero-flash execution.
Tolerance:
+/- 0.03mm (Strict control of radial runout and blade pitch consistency for high-RPM stability).
Surface Finish:
VDI 3400 Ref. 21-24 (Technical Matte) for optimized aerodynamic flow and low drag.
Thermal Management:
Independent multi-circuit cooling with specialized spiral baffles to eliminate localized heat buildup in the hub.
Quality Control:
G2.5 Dynamic Balance Validation / CPK > 1.67 / 1.0M+ Shots Lifecycle Warranty.

Product Description:

High-performance industrial impeller mold engineered for multi-blade centrifugal systems requiring extreme dynamic stability and aerodynamic efficiency. Features a precision-engineered radial slide architecture to ensure flawless blade geometry and structural symmetry. Optimized for high-volume Tier-1 production, the design effectively counteracts post-molding warpage to deliver consistent high-RPM performance and zero-vibration integrity in demanding HVAC and automotive cooling environments.


Engineering Mastery in Rotational Balance

This 1-cavity high-performance injection mold is specifically engineered by JST Mould for the demanding production of industrial and automotive multi-blade impellers. In high-RPM applications like HVAC blowers and radiator fans, rotational symmetry and dynamic balance are critical. Our advanced tooling ensures that every blade is aerodynamically identical, significantly reducing noise and extending motor life for Tier-1 automotive and industrial cooling systems.


Technical Excellence & Performance Highlights

  • Optimized Aerodynamic Precision: Utilizing high-speed CNC machining and mirror EDM, we achieve micron-level uniformity across all blades, ensuring peak performance and minimal vibration.
  • Integrated Hot Runner Technology: Equipped with a balanced hot runner manifold to ensure uniform plastic flow, eliminating short shots and air traps in thin-walled sections.
  • Advanced Thermal Management: High-density cooling circuits follow the complex blade contours, ensuring rapid heat dissipation, preventing warping, and achieving market-leading cycle times.
  • Premium Hardened Steel Durability: Constructed with high-grade H13, S136, or 1.2344 steel (HRC 48-52) to withstand abrasive resins and guarantee a stable life of over 1,000,000 shots.


Quick Technical Specs

  1. Category: 1-Cavity Precision Industrial Impeller Mold
  1. Application: HVAC Fans, Automotive Radiator Fans, High-Pressure Blowers
  1. Precision Tolerance: +/- 0.01mm
  1. Mold Life: Designed for high-volume 1M+ production cycles