mandrel
Automotive Precision Spindle Shaft OEM Machined Metal Parts
Material: Automotive mandrels are typically made of high-strength metal materials such as carbon steel, alloy steel, or stainless steel
Shape: Mandrels are generally cylindrical in shape, with some products featuring steps, threads, chamfers, or locating grooves
Size Range: Diameter typically ranges from Φ3 mm to Φ30 mm; length can be customized
Internal Design: Some mandrels may have through holes, blind holes, or hollow structures internally to reduce weight or meet assembly and functional requirements
Surface Treatment: Mandrel surfaces typically undergo various treatment processes, such as electroplating, nickel plating, blackening, polishing, or anodizing
Manufacturing Process: Mandrels are generally manufactured using high-precision CNC turning, CNC precision machining, grinding, and other processes, and undergo rigorous dimensional inspection and quality control to ensure that dimensional accuracy, concentricity, and surface finish meet the standards for automotive parts
High concentricity precision mandrel, CNC machined for mechanical and automotive use
1. Material: Stainless steel (304/316), alloy steel (40Cr/42CrMo), etc.
2. Structural Shape: Upper end: short positioning shaft (assembly guide), middle: flange step (stop/positioning), lower end: long shaft section (main functional section).
3. Size Range: Total length: 10 – 100 mm, shaft diameter (spindle): Φ6 – Φ12 mm, flange diameter: Φ12 – Φ25 mm.
4. Internal Design: Solid structure, no obvious internal bore, rounded corners (R-angle), H7/g6 fit, end chamfering.
5. Surface Treatment: Precision turning + polishing + grinding + electropolishing (stainless steel) + blackening (alloy steel) + nickel/chrome plating (wear-resistant and corrosion-resistant) + nitriding (improved wear resistance).
6. Manufacturing process: Blanking (bar stock), CNC turning (rough machining), finish turning (forming steps), heat treatment (if required), external cylindrical grinding (to ensure concentricity), polishing/surface treatment, and inspection (concentricity/dimensions).
New Energy Precision Spindle Shaft mandrel for EV Motor & Battery Systems CNC Machined
1. Material: Stainless steel (304/316), alloy steel (40Cr/42CrMo), etc.
2. Structural Shape: Upper end: short positioning shaft (assembly guide), middle: flange step (stop/positioning), lower end: long shaft section (main functional section).
3. Size Range: Total length: 10 – 100 mm, shaft diameter (spindle): Φ6 – Φ12 mm, flange diameter: Φ12 – Φ25 mm.
4. Internal Design: Solid structure, no obvious internal bore, rounded corners (R-angle), H7/g6 fit, end chamfering.
5. Surface Treatment: Precision turning + polishing + grinding + electropolishing (stainless steel) + blackening (alloy steel) + nickel/chrome plating (wear-resistant and corrosion-resistant) + nitriding (improved wear resistance).
6. Manufacturing process: Blanking (bar stock), CNC turning (rough machining), finish turning (forming steps), heat treatment (if required), external cylindrical grinding (to ensure concentricity), polishing/surface treatment, and inspection (concentricity/dimensions).
Valve Assembly Valve Stem Precision Stainless Steel Machined Shaft
Material: Stainless steel (such as SUS304/SUS316) or alloy steel
Shape: Overall precision cylindrical shaft structure, with stepped shafts, locating shoulders, or end flanges in some areas.
Size Range: Diameter typically ranges from Φ3 mm to Φ30 mm; length can be customized.
Internal Design: The valve stem has a dense internal structure with no cavities, ensuring high strength and fatigue resistance.
Surface Treatment: Surfaces can be finely polished, mirror-polished, passivated, or finely ground to reduce the coefficient of friction.
Manufacturing Process: Machined using high-precision turning and precision grinding processes, with strict tolerance control for key dimensions; combined with full-process quality inspection.