

With years of experience in manufacturing the Hollow Chrome Bar, we provide customer satisfaction through manufacturing and customization.
At Bos, we care about you and your company. We specialize in customizing, material selection, and manufacturing the Hollow Chrome Bar, and provide excellent service according to your needs.




The diversity of industrial applications necessitates different configurations of Hollow Chrome Bars, each engineered for specific operational requirements:
Standard Precision Hollow Bars: Designed for general applications in hydraulic and pneumatic systems, these bars offer excellent durability and corrosion resistance at competitive price points.
High-Precision Ground Bars: Manufactured with enhanced dimensional accuracy and superior surface finishes, these bars are ideal for applications requiring tight tolerances and smooth operation.
Custom-Engineered Solutions: Tailored to specific customer requirements, these bars can be produced in various dimensions, with outer diameters typically ranging from 30mm to 180mm and lengths extending up to 3,000mm based on application needs.
Specialized Alloy Variants: Utilizing different base materials including carbon steels and alloy steels, these bars are engineered for environments with specific mechanical or chemical demands.


The fundamental advantages of Hollow Chrome Bar technology establish its superiority over conventional solid bar solutions across multiple dimensions:
Enhanced Strength-to-Weight Ratio: The hollow geometry provides significant weight reduction while maintaining structural integrity, leading to improved efficiency in moving systems and reduced energy consumption.
Superior Surface Properties: The hard chrome plating delivers exceptional surface hardness, typically reaching HV900-1100 , which translates to outstanding wear resistance and extended service life.
Excellent Corrosion Resistance: The chromium layer provides inherent corrosion protection, making these bars suitable for operation in challenging environments where moisture, chemicals, or temperature variations are concerns.
Precision Engineering: With straightness tolerances as tight as 0.10mm per 1000mm and precise diameter control, these bars ensure smooth operation and reduced vibration in high-speed applications.
Design Flexibility: The internal passage naturally accommodates the routing of hydraulic lines, electrical wiring, or other components, simplifying overall system design and reducing assembly complexity.
