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Flowex was established in 2010 and make premium honed tube and chrome piston rod following international standard, with great quality and perfect service, we get wide praise and recognition from clients all over the world.
Our premium ST52.3 BK+S honed tubes are DIN2391 certified, offering exceptional precision with ISO H8 tolerance for hydraulic and pneumatic systems. With inner diameters ranging from 20mm to 1500mm and ultra-smooth Ra0.20-0.40μm surface finish, these 4m length tubes ensure optimal performance in demanding applications like hydraulic cylinders and cylinder barrels.",
Hard chrome plated piston rod was made by black round steel bar, through peeling, centerless grinding, polishing, chrome plate, polishing process.
Products meet international standard demands.
Ra0.20um, 0.2/1000mm, f7 tolerance.
Features:
1. High precision.
2. Made by best raw material.
3. Quality stable and uniformity.
4. Better packing protection.
5. Perfect after-sales service
Hard Chrome Plated Piston Rod
Steel Grade | CK45, SAE1045, 4140, 4340, JIS45C, 40Cr, 20MnV6, 42CrMo4, SUS304/316 Duplex 2205, etc. |
Diameter | Φ 6-500mm |
Tolerance | ISO f7 |
Length | 4m, 5.8m, 6m, 7.5m, 12m, 14m can be choose |
Roughness | max. Ra0.20µm (statistic average: 0.05 - 0.15µm) |
Straightness: | <= 0.2/1000 |
Roundness: | Half of the tolerance ISO f7 |
Hardness based on Delivery condition | Normal chrome rod (HRC 15-22) Q+T chrome rod (HRC 28-35) Induction Hardened chrome rod (HRC 55+/-2) Q+T and Induction hardened chrome rod (HRC 55+/-2) |
Chrome Thickness | 20-80µm |
Chrome Hardness | min. 900 HV (0.1) |
Declaration of conformity | According to EN 10083-2 Test in natural salt spray according to ASTM B 17 (96/120/150/200H). |
Packing | Oil soaked, carton pipe sheathed, cotton rope twined, bubble film packaged. |
Why Choice us
Rich Experience
We have 10years experience in manufacturing and export. Ensuring smooth transactions and reliable services
2.High-Quality
We provide premium products that meet international standards, each product in every process under strict quality inspection control.
3.Competitive Pricing
Bulk material sourcing and efficient management allow us to offer the best prices without compromising quality.
4.Reliable Partner
We promote wholesales channel, stand by customer and grow together with customer to Gain market share. We are your most reliable material partner.
5.Professional Team
All team members are skilled and professionally trained, most of them keep working in this team for more than 10years already.
We provide the best quality, excellent service and tailored solutions. There is no risk to choice us.
6. Efficient Logistics
We ensure fast and secure global shipping with trusted logistics partners.
Equipment
As one of the biggest honed tube piston rod manufacturers in China, we equipped with advanced production facilities and inspection facilities for honed pipe manufacturing and inspection.
Below manufacturing equipment for steel honed tubing and chrome plated steel bar.
"Specially designed for heavy-duty use in mining machinery and automotive shock absorbers, these honed tubes deliver unmatched durability. The oil soaked packaging provides superior corrosion protection during transit and storage. Manufacturers trust our precision tubes for power steering systems and other critical hydraulic applications requiring tight tolerances.",
Our premium STKM13C honed tubes are manufactured to exacting ISO H8 tolerance standards, making them ideal for high-pressure hydraulic and pneumatic systems. With inner diameters ranging from 20mm to 1500mm and exceptional surface finish (Ra0.20-0.40μm), these DIN2391 certified tubes ensure smooth operation in cylinder barrel applications.",
"Specially designed for demanding industrial applications, these 4m length honed tubes feature superior dimensional accuracy for perfect fit in power steering systems and automotive shock absorbers. The oil soaked packaging provides optimal corrosion protection during transport and storage, maintaining the pristine inner surface finish.",
"As a trusted honed tube supplier, we provide reliable solutions for mining machinery and heavy-duty hydraulic cylinders. Our STKM13C grade tubes combine durability with precision engineering, delivering consistent performance in extreme operating conditions while meeting strict international quality standards.
