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The Automotive Core Expansion Machine — also widely recognized as a specialized radiator core expansion machine or aluminum radiator core expanding machine — is a high-performance assembly solution dedicated to the automotive and transportation heat exchanger manufacturing sector.
Engineered to expand aluminum tubes within radiator, condenser, and charge air cooler cores, this tube expanding machine for automotive applications utilizes servo-driven or pneumatic expansion mandrels to achieve precise plastic deformation of the tubing.
The core expanding process for heat exchangers creates a tight interference fit between the tubes, cooling fins, and header plates, maximizing thermal transfer efficiency and structural durability under demanding vehicle operating conditions.
Designed for flexible production environments, the equipment supports rapid changeover between different core dimensions typical of passenger car radiator cores and heavy duty truck radiator platforms. All expansion force, stroke, and speed parameters are fully programmable through an intuitive PLC interface, ensuring consistent quality across diverse product specifications.
Precision Servo Hybrid Drive System
This radiator core manufacturing equipment integrates servo motor control with pneumatic actuation and precision ball screws to deliver smooth, vibration-free expansion motion. Expansion force and stroke are digitally adjustable in fine increments, preventing tube wall cracking while ensuring uniform contact pressure throughout the entire core assembly.
Fast Customization for Multiple Automotive Cores (OEM Customized Radiator Expansion Machine)
Featuring quick-change modular mandrel tooling designed for immediate adaptation to various tube diameters and hole patterns found in automotive cooling modules, this customized radiator expansion machine allows radiator production line operators to store parameter recipes digitally and recall them with a single touch. This significantly reduces downtime during changeovers between radiator, condenser, or intercooler production runs.
Robust Stainless Steel Construction
The machine frame and safety guarding are fabricated from stainless steel for excellent durability in high-duty-cycle automotive component manufacturing. As a standard for industrial radiator core expander machines, the open and accessible design simplifies routine cleaning and maintenance, with clear access to lubrication points and mandrel inspection areas.
Consistent Bond Integrity for Automotive Standards
This car radiator core expanding equipment achieves an industry-standard pull-out strength exceeding 120 N between the aluminum tube and the fin or header interface. This performance meets rigorous automotive requirements for vibration resistance and thermal shock durability. Integrated pneumatic clamping fixtures maintain precise core alignment throughout the expansion cycle, eliminating positioning errors.
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| Parameter | Range / Value | Remarks |
|---|---|---|
| Applicable Tube Diameter | Φ6 – Φ16 mm | Aluminum tubes with wall thickness 0.3 – 0.8 mm, typical of automotive radiator and condenser core production |
| Maximum Expansion Force | 5 – 25 kN | Programmable in 0.1 kN increments |
| Expansion Stroke | 300 – 1200 mm | Customizable to accommodate various radiator and condenser core lengths |
| Expansion Speed | 0 – 250 mm/s | Multi-segment speed profile, adjustable for optimal tube entry and retraction |
| Control System | PLC with Servo Drive | Digital recipe storage for instant changeover between automotive part numbers |
| Core Expansion Cycle Time | 10 – 30 seconds | Based on core size and row configuration, typical of passenger and commercial vehicle production |
| Power / Air Supply | 380V 3-Phase / 0.5 – 0.8 MPa | Pneumatic assist for part clamping and precise core location |
| Pull-Out Strength Standard | ≥ 120 N | Validated bond performance meeting automotive thermal and vibration durability specifications |
| Machine Dimensions (Reference) | Approx. 2500 × 1200 × 1800 mm | Horizontal configuration designed for seamless integration into tier supplier assembly lines |
Note: Detailed specifications may vary based on exact model configuration and specific customer requirements. As a professional radiator core expansion machine manufacturer, we provide OEM radiator core expansion machine solutions tailored to factory production line needs. Please refer to the machine nameplate and official documentation for final confirmed values. For radiator core expansion machine price inquiries or to discuss customized radiator expansion machine options, please contact our sales team.
Periodically inspect expansion mandrels and heads for signs of wear to maintain the dimensional accuracy and surface finish required for reliable aluminum radiator tube expansion.
Follow the prescribed lubrication schedule for ball screws and linear guideways to ensure long-term precision and repeatability during continuous heat exchanger manufacturing processes.
Keep fixture locating surfaces clean and free of aluminum debris to guarantee consistent core positioning and prevent clamping inaccuracies during rapid model changeovers on the radiator core expander machine.
For over 15 years, SUNHOPE has been a leading manufacturer and developer specializing in automotive radiator and condenser components, exporting globally. Our expertise encompasses the entire radiator production line.
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