A honed tube, also called a hydraulic cylinder honed tube, cylinder honed pipe, or SRB tube, is one of the most important parts of a hydraulic cylinder. It forms the inner working surface where the piston and seals move under pressure. Because this surface directly affects smooth movement and sealing performance, buyers should evaluate honed tubes carefully before placing an order.
For hydraulic cylinder manufacturers, the honed tube is not only a steel tube with a finished inner diameter. It must support stable piston movement, reduce seal wear, and maintain dimensional accuracy during repeated operation. In construction machinery, agricultural equipment, lifting systems, mining machinery, and industrial hydraulic units, poor tube quality can lead to oil leakage, unstable motion, seal damage, and shortened service life.
JNM supplies customized honed tubes, hydraulic cylinder tubes, hard chrome bars, chrome plated rods, cold drawn tubes, hydraulic cylinder barrels, and linear shafts. According to JINYO's product information, common steel grade options for honed tubes include STKM13C, ST52, SAE1020, C20, E355/ST52, SAE1026, 4140, and SUS304/316. JINYO also lists ID tolerance options such as H8 and H9, delivery conditions such as BK and BK+S, and production processes including honing and SRB.
For B2B buyers, the first step is to match the tube material and process to the working conditions of the cylinder. For standard hydraulic cylinders, ST52 or E355 honed tubes are commonly considered because of their balance of machinability, strength, and availability. For heavier-duty or special applications, buyers may need higher-strength alloy steel or stainless steel options. Exact material selection should be confirmed according to working pressure, load, corrosion environment, and drawing requirements.
The inner surface finish is another key purchasing factor. A consistent honed or skived and roller burnished inner surface helps the piston and seals move smoothly. This can reduce friction, improve sealing, and support a longer maintenance interval. Buyers should confirm inner diameter tolerance, surface roughness, straightness, roundness, wall thickness, and length tolerance before production.
When comparing honed tube suppliers, price should not be the only decision point. A low-cost tube with unstable tolerance or poor inner surface quality can increase machining waste, assembly problems, and after-sales risk. For export buyers, stable packaging and protection against rust or transportation damage are also important, especially for long tubes and precision-finished surfaces.
JINYO focuses on customized production of honed tubes and chrome plated rods for hydraulic cylinders. For OEM buyers, repair companies, and hydraulic system manufacturers, sourcing honed tubes together with chrome rods, hydraulic cylinder tubes, bucket pins, steel bushes, or ductile iron bars can help simplify supplier management and support more consistent component quality.
## Product Specification Section
The following specification fields can be used when preparing a honed tube inquiry. Please verify final values with JINYO before publishing exact claims or confirming an order.
Specification Item | Buyer Notes
| Product name | Honed tube, hydraulic cylinder honed tube, cylinder honed tube, SRB tube |
| Material options | STKM13C, ST52, SAE1020, C20, E355/ST52, SAE1026, 4140, SUS304/316 according to JINYO product information |
| Inner diameter tolerance | JINYO product information lists H8 and H9 options; confirm exact tolerance before order |
| Production process | Honed or SRB/skived and roller burnished, depending on application and order requirement |
| Delivery condition | BK and BK+S are listed by JINYO; confirm condition according to drawing and standard |
| Size range | Add confirmed OD, ID, wall thickness, and length range before publishing if available |
| Surface roughness | Confirm with JINYO based on production process and cylinder application |
| Straightness and roundness | Confirm project-specific requirements before quotation |
| Machining options | Cutting, chamfering, boring, honing, SRB, deep hole drilling, or other machining may be discussed according to drawing |
| Packaging | Anti-rust protection, end caps, bundles, wooden cases, or export packaging to be confirmed before shipment |
| Customization | Buyer drawings, material requirements, quantity, tolerance, and application details should be provided |
Honed tubes are commonly used in:
- Hydraulic cylinders for excavators, loaders, cranes, forklifts, and construction machinery
- Agricultural machinery hydraulic systems
- Industrial hydraulic presses and lifting equipment
- Mining and material handling equipment
- Pneumatic machinery and automation systems
- Repair and replacement production for hydraulic cylinder workshops
- OEM hydraulic cylinder manufacturing
