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Engineered for the most demanding industrial environments, this hardened automotive fixture component delivers exceptional structural integrity and wear resistance. Forged from industrial-grade 40Cr alloy structural steel, the base material undergoes a rigorous quenching and tempering process to achieve a consistent volume hardness of HRC50-55. When handling this component, operators will immediately notice its substantial heft and the uniform, semi-bright silver-gray finish provided by the advanced chemical nickel coating. This dense, even layer not only offers a premium tactile feel but also acts as a highly effective barrier against corrosive elements in harsh working conditions. By integrating micro-level precision with extraordinary core strength, this structural fixture ensures your automated lines and heavy-duty transmission systems operate with exact clearance tolerances, drastically reducing maintenance downtime and elevating overall assembly accuracy.
Our engineering approach combines premium metallurgy with exacting dimensional control to deliver components that withstand extreme mechanical stress.
Base Material: We utilize specialized 40Cr alloy structural steel, recognized across the industry for its exceptional load-bearing capabilities and structural stability.
Thermal Processing: Through meticulously controlled quenching and tempering protocols, the component achieves a precise, uniform volume hardness of HRC50-55.
Performance Advantage: This specific metallurgical foundation guarantees remarkable core strength and anti-fatigue properties, providing the essential underlying support required for critical parts subjected to constant friction and heavy mechanical stress.
Dimensional Specifications: The primary cylindrical structure is precisely milled to an exact specification of Φ120 × 40.
Form and Position Tolerances: Leveraging ultra-high rigidity machine tools and advanced grinding techniques, we strictly control all geometric tolerances within 0.012mm. This includes exacting standards for roundness, cylindricity, and concentricity, which are vital for maintaining optimal dynamic balance during high-speed operations.
Positioning Hole Precision: The critical mating holes are meticulously machined to a unidirectional positive tolerance range of 0 to +0.01mm. This microscopic accuracy guarantees a precise, gap-free clearance fit with corresponding shaft components, eliminating transmission slippage and ensuring absolute alignment.
Coating Technology: Advanced chemical nickel plating.
Corrosion Resistance: The plating process deposits a uniformly dense protective layer across the entire substrate. This shield effectively repels environmental moisture and corrosive agents, significantly extending the component's operational lifespan in challenging environments.
Secondary Hardening: Beyond rust prevention, the chemical nickel layer provides a secondary boost to the surface hardness, further optimizing the component's resistance to abrasive wear during continuous mechanical cycling.
Visual and Structural Consistency: The final product exhibits a refined matte or semi-bright silver-gray appearance. Our specialized plating technique guarantees an even distribution of the coating, completely eliminating electroplating dead corners and ensuring a consistent finish on every single surface.
Manufacturing this high-performance fixture presents a complex engineering challenge, requiring the precise harmonization of seemingly opposing physical attributes. We have successfully overcome the traditional barriers of machining high-hardness materials with micro-level precision:
The Balance Between Hardness and Precision: Achieving a stringent shape and position tolerance of 0.012mm on a substrate hardened to HRC50-55 demands exceptional equipment capabilities. We deploy industry-leading CNC machining centers equipped with specialized CBN (Cubic Boron Nitride) cutting tools. Combined with our ultra-high rigidity machine tools, we effectively neutralize vibration during the precision grinding process, ensuring exact dimensional fidelity.
The Control of Strictness and Stability: Maintaining the precise positioning hole tolerance within the unidirectional positive range (0 to +0.01mm) requires absolute environmental control. Our manufacturing takes place in a strict constant-temperature workshop, utilizing precise tool compensation strategies and full-process quality monitoring to ensure batch-to-batch consistency and reliable delivery.
The Synergy Between Substrate and Surface Layer: The ultimate quality of the chemical nickel coating relies heavily on the substrate's microscopic cleanliness and finish prior to treatment. Through meticulous pre-treatment protocols, we ensure the high-hardness 40Cr steel forms an inseparable bond with the nickel layer, completely preventing any risk of peeling, flaking, or microscopic surface defects.
Engineered specifically to thrive in high-load, high-wear environments, this hardened fixture component serves as the structural backbone for a variety of demanding industrial sectors:
Precision Automated Equipment | Ideal for high-wear-resistant cams, guiding rollers, and bearing housings where continuous, low-friction movement is mandatory for operational efficiency. |
Semiconductor Packaging & Testing | Serves as ultra-precise positioning discs and fixture bases, meeting the stringent contamination and micro-accuracy standards required by semiconductor manufacturing equipment. |
Advanced Mold Manufacturing | Highly suited for mold base guide sleeves and top rod fixing plates, providing the necessary rigidity and wear resistance to withstand millions of injection cycles without deformation. |
Heavy-Duty Transmission Systems | Acts as a core structural component in various high-speed mechanical drives, ensuring stable power transfer and maintaining structural integrity under extreme mechanical loads. |
We stand at the forefront of advanced component manufacturing, excelling in the complex intersection of high-hardness metallurgy, micron-level geometric tolerances, and functional surface engineering. Our facility is fully equipped with sophisticated measurement devices and automated production lines, ensuring that every single fixture delivered provides reliable performance and an exceptionally long service life. We do not just manufacture parts; we engineer reliability into your core systems.
Beyond standard manufacturing, we pride ourselves on offering comprehensive, flexible customization and deep engineering support. From the initial technical evaluation of your blueprints to the optimization of machining strategies and final product delivery, our dedicated engineering team provides a complete, one-stop solution. We are highly responsive to complex procurement demands for non-standard precision parts. Welcome to inquire and provide your drawings and technical requirements; let our engineering team offer you a customized solution that elevates your operational capabilities.
