High Quality Honed Tubes China Manufacturer and Wholesale Supplier
Baokun is a trusted manufacturer and wholesale supplier of high-quality honed tubes, specializing in both OEM and ODM services. Our honed tubes are precision-engineered to meet the high industry standards, offering excellent durability, smooth surface finishes, and tight tolerances. Whether you need custom designs or bulk orders, Baokun is equipped to deliver tailored solutions for various applications. Partner with us for reliable products and unmatched customer service, ensuring your business gets the best quality honed tubes on the market.
Features of Baokun Honed Tubes
- Seamless Construction: Made from a single piece of material, ensuring uniform strength and reliability without welded joints.
- Competitive Pricing: Offering cost-effective solutions without compromising quality.
- Precision Engineering: Manufactured to tight tolerances for superior accuracy.
- Smooth Surface Finish: Ideal for hydraulic and pneumatic applications with minimal surface roughness.
- Durable and Long-Lasting: High-quality materials ensure extended service life and reliability.
- Custom Sizes: Available in a range of diameters and lengths, tailored to your specifications.
Baokun Honed Steel Tubing Series
Honed tubes are precision-engineered steel tubes with a smooth, uniform inner diameter, achieved through the honing process. This method ensures high accuracy, making honed tubes ideal for applications requiring low friction, such as in hydraulic and pneumatic cylinders. They are widely used across industries like automotive, aerospace, construction, and manufacturing for high-performance operations.
At Baokun, we offer custom honed tubes with flexible minimum order quantities starting from just 1 ton. We guarantee fast turnaround times, with shipments dispatched within 7 days. Plus, you can receive a personalized quote in under 2 hours, ensuring you get the materials you need when you need them.
Baokun’s honed tubes are manufactured with tight tolerances and precise inner diameters, ensuring high accuracy and smooth finishes. This makes them ideal for high-performance applications where consistency and precision are crucial, such as in hydraulic and pneumatic systems.
Made from high-quality carbon and alloy steel, Baokun’s honed tubes are designed to perform well in demanding conditions, such as extreme temperatures and high-pressure environments. Their robust construction helps reduce maintenance costs and downtime, ensuring reliable operation over time.
Baokun offers flexible customization options, providing honed tubes in a variety of sizes, lengths, and materials tailored to your specific requirements. Whether you are in automotive, aerospace, or construction, Baokun ensures that each tube meets the precise needs of your industry.
With a streamlined manufacturing process and efficient logistics, Baokun ensures fast turnaround times. From receiving a custom quote within hours to shipping orders within 7 days, Baokun delivers on time to keep your project on track, making it a dependable partner for urgent orders.
Why Choose BAOKUN As Your Supplier?
Baokun is your reliable supplier for high quality honed tubes, offering precise customization, rapid delivery, and outstanding customer support. With over 10 years of industry experience, Baokun ensures every product meets stringent quality standards, guaranteeing durability and optimal performance.
- Third-Party Inspections for Quality Assurance: We accept third-party inspections to verify product quality, adhering to international standards for reliability and performance.
- Anti-Corrosion Protection for Longer Life: Each honed tube is treated with anti-corrosion oil and equipped with protective caps, preventing rust and extending product lifespan while reducing maintenance costs.
- Precision Customization to Meet Your Needs: Baokun offers tailored honed tubes with customizable inner diameter, outer diameter, length, and tolerances to perfectly match your specific application requirements.
- Fast Response and On-Time Delivery: We guarantee to respond to inquiries within 2 hours and ship orders in as little as 7 days, ensuring your project stays on track without delays.
- Flexible Packaging Options for Secure Delivery: Choose from woven bags or wooden crates for packaging, ensuring safe and reliable delivery of your honed tubes.
Applications of Honed Tubes
Hydraulic Systems
Honed cylinder tubes are essential in hydraulic cylinders, providing smooth fluid movement and reducing friction, ensuring reliable operation under high pressure.
Pneumatic Systems
Honed tubes improve the efficiency of pneumatic cylinders by reducing friction, enhancing air or gas movement, and supporting energy-efficient operations.
Automotive Industry
Used in hydraulic systems for braking, steering, and suspension, honed tubes help control fluid flow, ensuring vehicle safety and performance.
Construction Equipment
Honed tubes are critical in the hydraulic cylinders of machinery like excavators, loaders, and cranes, where they manage high pressures and heavy loads.
More Information
Specifications of Baokun’s Honed Tubes
| Product Name | Honed Tube |
|---|---|
| Standard | DIN2391, DIN2393, EN10305, ASTM A519, GOST8732 |
| Material | Carbon Steel (E355, ST52, CK45) Alloy Steel (4130, 4140, 34CrMo4, 35CrMo, 27SiMn, 42CrMo/40XM, 40Cr/40X, 30XГСА) |
| Inner Diameter Tolerance | H7, H8, H9, H10 |
| Straightness Tolerance | 0.3 – 1.0 mm/1000 |
| Surface Roughness | 0.1 – 0.4 μm |
| Manufacturing Length | 3 – 9 m, or depend on your requirements |
Hone Tube Tolerance
| Inner Diameter (mm) | Inner Diameter Tolerance (mm) |
Wall Thickness Tolerance (mm) |
|||
| H7 | H8 | H9 | H10 | ||
| ≤30 | +0.021/0 | +0.033/0 | +0.052/0 | +0.084/0 | ±7.5%>210mm±10% |
| 30≤50 | +0.025/0 | +0.039/0 | +0.062/0 | +0.100/0 | |
| 50≤80 | +0.030/0 | +0.046/0 | +0.074/0 | +0.120/0 | |
| 80≤120 | +0.035/0 | +0.054/0 | +0.087/0 | +0.140/0 | |
| 120≤180 | +0.040/0 | +0.063/0 | +0.100/0 | +0.160/0 | |
| 180≤250 | +0.046/0 | +0.072/0 | +0.115/0 | +0.185/0 | |
| 250≤315 | +0.052/0 | +0.081/0 | +0.130/0 | +0.210/0 | |
| 315≤700 | +0.057/0 | +0.089/0 | +0.140/0 | +0.230/0 | |
Typical Surface Roughness Range
Surface finish is usually defined by surface roughness values. For honed tubes, the typical roughness range is Ra 0.2 to 0.8 μm. Within this range, the surface remains smooth enough to limit friction while maintaining sufficient micro-texture.
Ra 0.4 μm is commonly specified because it offers a balanced combination of smoothness and functional surface structure. A mirror-polished bore is generally avoided, as it does not provide a suitable working surface.
Cross-Hatch Surface Structure
In addition to roughness values, honed tube surface finish is characterized by a cross-hatch pattern formed during honing. The usual cross-hatch angle ranges from 40° to 50°, with 45° widely used.
This pattern creates fine, intersecting grooves on the bore surface, contributing to uniform surface texture and stable bore quality.
A properly controlled honed tube surface finish is not about maximum smoothness. It focuses on controlled roughness, consistent surface texture, and stable bore quality achieved through the honing process.
Advanced Equipments in Baokun Factory
To meet the increasing demand for high-quality honed tubes, we have continuously invested in upgrading our production equipment since 2004. With new honing machines and regular technical improvements, our manufacturing process ensures that the tubes we produce meet strict international standards. This focus on advanced machinery and precision allows us to consistently deliver honed tubes that meet customers’ exact specifications.
Carbon Steel Honed Tubes vs Alloy Steel Honed Tubes: Which One is Right for You?
When choosing honed tubes for your projects, selecting the right material—carbon steel or alloy steel—is critical to achieving the best performance, durability, and cost-effectiveness. Both materials have distinct advantages depending on your specific application. Here’s what you need to know:
1. Carbon Steel Honed Tubes: Ideal for Cost-Effective Applications
Carbon steel honed tubes are known for their strength and affordability, making them an ideal choice for many standard hydraulic, pneumatic, and industrial applications. Carbon steel offers excellent machinability and is generally less expensive than alloy steel, making it a top option for projects with budget constraints.
Key Benefits of Carbon Steel Honed Tubes:
- Cost-Effective: Lower material cost, perfect for large-volume orders.
- Good Strength: Sufficient strength for most hydraulic and pneumatic systems.
Best For: Applications that don’t require extreme strength or resistance to corrosive environments.
2. Alloy Steel Honed Tubes: Enhanced Durability for Heavy-Duty Applications
Alloy steel honed tubes are crafted by adding other elements like chromium, molybdenum, or vanadium to the base steel. These additions improve the steel’s overall strength, corrosion resistance, and wear resistance, making alloy steel honed tubes the preferred choice for more demanding applications.
Key Benefits of Alloy Steel Honed Tubes:
- Superior Strength: Better suited for high-pressure or high-temperature environments.
- Corrosion Resistance: More resistant to rust and wear, ideal for harsh environments.
- Enhanced Durability: Longer service life, reducing maintenance and replacement costs.
Best For: High-performance applications like aerospace, energy, and heavy machinery, where durability and resistance to extreme conditions are essential.
Which One Should You Choose?
- Choose Carbon Steel if you need a cost-effective, reliable option for standard applications.
- Choose Alloy Steel if your project requires superior strength, longer durability, and resistance to extreme conditions.
Honed Tube Manufacturing Process
| No. | Process | Description |
| 1 | Raw material processing | Steel tube selection: Baokun selects high-quality cold-drawn seamless steel tubes (DIN 2391,GOST) or hydraulic special tubes (ST52.3, EN 10305-4,8732) for processing to meet the different needs of customers.
Inner hole pre-processing: inner diameter allowance 0.3-0.5mm (for subsequent honing) Cutting: Fully automatic band saw , cut verticality ≤ 0.1mm/100mm. |
| 2 | Deep hole boring | Baokun uses a famous German brand of deep hole drilling and boring machine (BTA system)
Process parameters:
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| 3 | Heat treatment strengthening | Process type:
Metallographic inspection:
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| 4 | Multi-stage honing process | Rough honing stage:
Fine honing stage:
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| 5 | Surface strengthening treatment | Rolling process:
Cleaning and passivation:
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| 6 | l Full-size inspection | Inspection items:
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Our Certificates
Key Factors to Consider When Choosing Honed Tubes
Material
Honed tubes are typically made from carbon steel, stainless steel, or alloy steel. The choice of material depends on the intended application, environmental conditions, and the required strength. For example, stainless steel is ideal for applications that require resistance to corrosion, while carbon steel may be more suitable for applications where cost is a primary concern.
Tube Diameter
The diameter of the honed tube is another important consideration. It’s essential to select a tube with the correct internal and external diameter to ensure proper fitment with other components in the system.
Surface Finish
The surface finish of the honed tube plays a critical role in its performance. The smoother the finish, the less friction there will be between the tube and other components. Ensure that the surface finish is suitable for the specific requirements of your application.
Tolerance and Accuracy
Honed tubes must meet strict tolerances to ensure precision and accurate operation. Tolerance levels may vary depending on the application, so it’s important to discuss your needs with the manufacturer and ensure the tubes meet the required specifications.
Wall Thickness
The wall thickness of honed tubes can affect their strength and performance. In some applications, thicker walls are needed to handle higher pressures, while in others, thinner walls may suffice. Always consider the operating pressure and load conditions when selecting the tube thickness.
Environmental Considerations
Consider the environmental factors in which the honed tubes will be used. If the tubes will be exposed to extreme temperatures, corrosion, or other harsh conditions, it’s important to choose materials and coatings that can withstand these challenges.
Packaging and Delivery
FAQ
1. What are honed tubes
Honed tubes is seamless steel tubes that has been processed through honing to achieve a smooth, precise inner surface. This surface finish improves the tube’s performance in hydraulic and pneumatic systems by minimizing friction and ensuring better sealing and longer-lasting functionality.
2. What types of tubing are suitable for honing?
Tubes made from materials such as carbon steel, stainless steel, and alloy steel are most commonly honed. These materials offer the strength and durability required to withstand the honing process, ensuring the tube achieves the precise inner surface finish needed for applications like hydraulic cylinders and pneumatic systems.
4. What is the surface finish of honed tubes
The surface finish of honed tubes is smooth and uniform, achieved through a honing process that refines the tube’s interior. This results in a precise, low-roughness finish that reduces friction and enhances the performance of hydraulic and pneumatic systems. While the exterior is typically polished or cold-drawn for strength and durability, the focus of honing is on the inner surface to ensure optimal sealing and fit for piston rods and seals.
5. What does the honed finish look like?
A honed finish is smooth, polished, and consistent, with minimal surface roughness. The honing process refines the inner surface by removing imperfections, resulting in a precise and uniform texture. This finish is crucial for reducing friction and ensuring a tight seal, which improves the performance and durability of hydraulic and pneumatic systems.
