1. High-Quality Raw Materials Our raw materials are primarily sourced from renowned steel mills such as Jiangsu BOS Hydraulic Technology Co., Ltd., Baosteel, Ansteel, and Changjiang Steel Pipe.
2. Advanced Production Equipment Our manufacturing facilities include cold drawing machines, honing machines, skiving and roller burnishing machines, straightening equipment,polishing machines, heat treatment furnaces, grinding machines, and more.
3. Rich production experience, strict quality control We implement a professional internal quality control system to conduct comprehensive inspections on all products.
As a leading Honed Tube manufacturer in China, BOS Hydraulic specializes in producing high precision Galvanized Carbon Steel Honed Tubes for modern hydraulic and pneumatic systems. Each tube undergoes precision honing and galvanizing processes to ensure exceptional corrosion resistance, dimensional accuracy, and mechanical stability.
Developed under rigorous standards, our galvanized honed tubes combine the strength of carbon steel with the protective properties of zinc coating, providing outstanding performance even in humid, marine, and abrasive working environments.
Produced according to EN 10305-1 / DIN 2391 / ASTM A519 / ISO 9001, using high grade ST52, CK45, 1020/1026, or 20MnV6 carbon steels to ensure mechanical strength and uniform composition.
Uniform wall thickness guarantees balanced cylinder pressure and reliable mechanical stability.
Optional galvanized protection, phosphating, annealing, or chrome-plating available upon request for specific industrial environments.
Each batch comes with
The tubes’ strong exterior protection and smooth bore make them ideal for harsh, moisture prone conditions and long term mechanical cycles.
BOS Hydraulic operates a state of the art facility equipped with automatic honing machines, CNC turning lines, galvanizing baths, and non destructive testing systems.
Every production step—from raw steel selection to final surface coating—is monitored and traceable to ensure total quality control.
Q1: What is the difference between a galvanized tube and a standard honed tube?
A galvanized honed tube has a zinc coating applied after honing, providing superior corrosion resistance for outdoor or marine applications.
Q2: Can BOS Hydraulic customize sizes or coatings?
Yes, we produce according to customer drawings, technical standards, or international norms. Various zinc thicknesses and optional coating types are available.
Q3: What surface roughness do you guarantee?
Typical inner surface roughness is Ra 0.2–0.4 μm, ensuring minimal friction between piston and cylinder.
Q4: How are tubes packaged for export?
Tubes are treated with anti rust oil, plugged at both ends, wrapped in waterproof plastic film, and packed in wooden cases or steel bundles.
Q5: Do you provide testing certificates?
Yes, BOS Hydraulic supplies full material, mechanical, and surface treatment certificates with every shipment.
Q6: What industries commonly use galvanized honed tubes?
They are widely used in construction, shipbuilding, agriculture, mining, logistics, and energy equipment, where corrosion protection is crucial.
With years of expertise in honed tube manufacturing and galvanizing technology, BOS Hydraulic is committed to delivering excellence, innovation, and precision to every client worldwide. Whether for heavy-duty cylinders or specialized automation systems, our Galvanized Carbon Steel Honed Tubes offer reliability, strength, and longevity—engineered to perform under any condition.
