Cone Expansion Rim Flaring Machine
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The cone expansion flaring machine is a dedicated piece of equipment designed for wheel rim flaring operations. It expands both sides of a welded and trimmed wheel rim into a bell-mouth profile, creating the required geometry for subsequent rim rolling and forming operations.
Specifications
- Max. flaring force: 315T
- Cone angle: 10°
- Flaring die segments: 12
- Flaring hydraulic cylinder stroke: 310mm
- Installed power: approx. 75kW
- Machine weight: approx. 8t (excluding base)
Processing StageProcessing Stage
- After re-rounding
- Flaring
Features
- Machine frame: Fabricated from thick steel plates using welded construction. The frame undergoes post-weld stress-relief annealing, ensuring excellent rigidity, dimensional stability, and long-term accuracy.
- Guide bushings: Made of wear-resistant tin bronze. After assembly, the bushings are precision fine-bored to guarantee guiding accuracy and smooth motion.
- Flaring tooling system: The expansion die assembly is fixed to the main machine frame. When changing rim specifications, only the tooling modules need to be replaced, enabling fast model changeover.
- Center height adjustment: Spacer plates are designed at the lower part of the machine frame. During commissioning, the center height can be precisely adjusted by machining the spacer plates.
- Crack detection system: Equipped with Keyence sensors combined with a vision inspection system, providing high-precision detection of flaring cracks and defects to ensure product quality.

