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Hydraulic Cylinder Honed Tube – Cold Drawn Seamless Honed Tubing, H8 Tolerance
 
 
 
 
 
 
 
 
DIN 2391 / EN 10305-1
· ID 30–500 mm
· Ra 0.2–0.4 μm 
· ISO 9001 & IATF 16949
Hydraulic Cylinder Honed TubeISO 9001 certified hydraulic cylinder tube manufacturer fengdie metal

Custom Hydraulic Cylinder Tube & Honed Tubing Manufacturer

A hydraulic cylinder honed tube — also called a honing tube, honed pipe or precision honed tubing — is a cold-drawn seamless steel tube whose inner bore is honed to an ISO H8 tolerance with a surface roughness of Ra 0.2–0.4 μm. Delivered ready to use as the cylinder barrel, it seals directly against the piston, reducing friction, preventing leakage and extending seal life in hydraulic and pneumatic systems.

Technical Specifications of ST52 & E355 Hydraulic Cylinder Tubes

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  Item Parameters
  Process Cold rolling followed by hooping
  Material(customizable) Carbon steel, Stainless steel, Alloy steel
  OD 18-90mm
  Thickness 1-20mm
  Application Hydraulic cylinders, high-precision mechanical equipment
  Certification CE,CMA,CNAS
  Custom CNC Manufacturing
Hydraulic Cylinder Tube Sizes & Stock List
Common hydraulic cylinder tube sizes range from ID 40 mm to ID 200 mm with wall thicknesses of 5–10 mm. The table below lists our standard metric stock sizes; custom IDs from 30 to 500 mm are also available.
  OD Range  H8 Ovality
  10~18 +0/-0.027 0.0135
  18~30
+0/-0.033
0.0165
  30~50 +0/-0.039 0.0195
  50~80 +0/-0.046
 
0.023
 
Honed Tubing Materials: Carbon Steel, Alloy Steel & Stainless Steel
We supply honed tubes in three material families — carbon steel, alloy steel and stainless steel. Within each family, the grade is chosen by working pressure, duty cycle and environment: carbon-manganese E355/ST52.3 covers most hydraulic cylinders, quenched-and-tempered 4140 handles high pressure and shock loads, and 304/316 stainless resists corrosion
  Category Grade Standard Yield (min) Tensile
  Carbon steel 20# GB/T 3639 ≥ 245 MPa ≥ 410 MPa
  Carbon steel 45# GB/T 3639 ≥ 355 MPa ≥ 600 MPa
  Carbon steel (C-Mn) ST52.3 / E355 DIN 2391 / EN 10305-1 ≥ 450 MPa ≥ 580 MPa
  Alloy steel SAE 4140 / 42CrMo
ASTM A519
≥ 650 MPa ≥ 900 MPa
  Stainless steel 304 / 316 ASTM A511 ≥ 205 MPa ≥ 515 MPa

Performance Features of Our Honed Tubing & Hydraulic Cylinder Barrels

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1. High-Precision H8 Bore Tolerance
Every honing tube is finished to ISO H8 (H9 on request) with Ra 0.2–0.4 μm, ensuring reliable sealing and smooth piston travel.

2. Defect-Free Inner Surface 
100% bore inspection eliminates scratches, pits and chatter marks that would otherwise damage seals and cause leakage.

3. Superior Tube Straightness 
Standard straightness of ≤0.5 mm/m, with a premium grade of ≤0.2–0.3 mm/m for long-stroke and deep-hole applications.

4. Ready-to-Use Cylinder Barrel 
Tubes are supplied cut to length with chamfered ends — no further machining required before welding the end caps.

5. Material Versatility for High Pressure 
From E355 for general hydraulics to quenched-and-tempered 4140 for heavy-duty systems, matched to your working pressure and duty cycle.

hydraulic-cylinder-tube-technical-specifications

Know Detailed Information
Please Download Catalogue Here  

Honed Tube Catalogue – Sizes & Tolerances PDF

How Our Hydraulic Cylinder Honed Tubes Are Made: 14-Step Production Process

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From steel billet to packed barrel, every honed tube passes through 14 controlled steps — each with its own inspection record.
Hydraulic Cylinder Honed Tube Flowchart

 

1. Raw Material Selection & Inspection
As a quality-driven hydraulic cylinder tube manufacturer, Fengdie Metal carefully selects high-quality steel billets or hot-rolled seamless tubes. We focus on premium heavy-duty grades like DIN 2391 ST52, EN 10305-1 E355, AISI 4140, 4130, and 1045.
Quality Check: Every raw batch undergoes strict chemical composition verification, surface defect scanning, and initial dimensional checks by our in-house factory laboratory.

2. Heating (Billet Preparation)
For production starting from raw billets within our forging workshop, the steel is heated to precise perforation temperatures. This prepares the material for hot piercing

3. Piercing & Hot Rolling
The heated billet is pierced to form a hollow tube shell, providing the initial outer diameter (OD) and inner diameter (ID) shaping. This forms the rugged structural foundation for the future cylinder body tube.

4. Annealing & Stress Relieving Heat Treatment
The hollow shells undergo normalizing or annealing within our heat treatment line to relieve internal stresses, improve machinability, and enhance ductility. This heat treatment state (such as the BK+S condition) is especially critical for maintaining the high yield strength of alloy grades and standard E355 cylinder barrels.

5. Pickling & Surface Preparation
 To remove manufacturing scale and oxides, our chemical processing line subjects the tubes to acid pickling, followed by professional neutralization and thorough rinsing. This ensures a flawless surface before entering the honed tubing production stage.

6. Cold Drawing (CDS Tube Production)
The steel undergoes multiple precision passes through specialized dies and mandrels at our cold drawing facility. This critical phase reduces the diameter and wall thickness, transforming the material into a high-concentricity cold drawn seamless tube (CDS) with tighter tolerances. Intermediate annealing is applied between passes if required by the customer's specifications.

7. Precision Straightening
Our technicians utilize heavy-duty mechanical or rotary straightening machines to correct any bowing. This ensures that the raw honed steel tubing meets a strict straightness standard of ≤0.3 ~ 0.5 mm/m, preventing side-loading in final hydraulic operations.

8. Boring & Skiving (Pre-Finishing)
Precision deep-hole boring is executed to bring the inner wall to a near-final ID, or skiving is utilized to remove material evenly. This step sets up the exact geometric dimensions required for our high-efficiency SRB tube process.

9. Core Finishing Step: Honing vs. Skiving & Roller Burnishing (SRB)
This is the landmark manufacturing phase where the steel pipe officially becomes a high-precision hydraulic cylinder honed tube:
Honing Process:Abrasive stones rotate and reciprocate inside the bore, creating the classic cross-hatch pattern ideal for optimal oil film retention. This achieves a tight ISO H8/H9 tolerance and a surface finish of Ra 0.2 ~ 0.4 μm.

SRB Process (Skiving + Roller Burnishing):Our high-efficiency line performs precise sizing via skiving, immediately followed by roller burnishing to cold-work the metal. This delivers a mirror-like finish Ra≤ 0.2μm ) and increases the inner wall's hardness, essential for heavy-duty hydraulic cylinder barrels.

10. Final Cleaning & Polishing
Our production line implements comprehensive automated flushing to remove all micro-debris, metal shaves, and residual abrasives from the finished honed pipe bore, preparing it for final QC.

11. 100% Quality Control & Geometric Inspection
Our factory QA team conducts meticulous verification of the finished product, including dimensional checks (ID/OD, wall thickness, ovality), straightness validation, and surface roughness laser measurement. Non-destructive testing (NDT) via ultrasonic inspection is conducted to ensure zero internal defects in our hydraulic cylinder tubing.

12. Heavy-Duty Anti-Corrosion Treatment
Application of premium, long-lasting rust-preventive oil coatings or phosphate treatments to both internal and external surfaces. As a reliable global exporter, this step guarantees that every hydraulic cylinder shell remains 100% corrosion-free during warehouse storage and long-distance ocean freight.

13. Precision Cutting to Specified Lengths
Utilizing industrial band saws, our operators cut the finished honed tubing into customer-specified lengths (supporting custom long-stroke projects up to 12 meters or more) with perfect vertical accuracy.

14. Bundling, End-Capping & Seaworthy Packaging
Heavy-duty plastic protection caps are securely fitted on both ends to seal the precision bore from moisture and dust. Finished tubes are securely strapped, wrapped in durable protective woven layers, and packed into reinforced wooden cases by our factory logistics department for safe global transit.

Industrial Applications of Our Hydraulic Cylinder Honed Tubes

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Construction Machinery Cylinders
As a hydraulic cylinder tube manufacturer serving the construction sector, we supply E355 honed tubes for excavator boom, arm and bucket cylinders. Straightness held within 0.5 mm/m — 0.2–0.3 mm/m on premium orders — keeps multi-meter strokes smooth under shock loads.

Agricultural Machinery
For tractors, harvesters and loaders, we provide cut-to-length honed tubing in ID 40–125 mm — the most common range for lift, tilt and steering cylinders — delivered chamfered and ready for end-cap welding.

Mining Equipment
Mining cylinders face high pressure, dust and impact. Quenched-and-tempered 4140 honed tubes with ≥650 MPa yield strength give roof supports and rock-drill cylinders the safety margin they need.

Material Handling & Forklifts
Lift-mast and tilt cylinders cycle thousands of times a day. Our H8 bores with Ra 0.2–0.4 μm protect seals through continuous duty and cut leak-related downtime.

Industrial Presses & Marine Systems
Press clamping cylinders run at sustained high pressure, while marine steering and hatch systems add salt-air corrosion. We match the grade to the environment — 4140 for pressure, 316 stainless for corrosion.

Shock Absorber & Gas Spring Tubes
Beyond hydraulic cylinders, small-diameter thin-wall honing tubes serve as inner tubes for shock absorbers and gas springs. Custom IDs from 30 mm with tight ovality control are available for automotive and industrial damper makers — see our premium shock absorbers for finished damper solutions.

Your Expert Hydraulic Cylinder Honed Tubes Supplier

About Fengdie Metal – Honed Tube Factory in Changzhou, China

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Changzhou Fengdie Metal Technology Co., Ltd.is leading manufacturer and supplier of high-precision steel tubes based in China, we specialize in cold rolled precision seamless steel tubes, cold drawn precision tubes, precision cold rolled tubing, and related products such as hydraulic cylinder tubes, honed tubes, and shock absorber tubes. With years of expertise in advanced cold rolling and cold drawing processes, we deliver seamless steel tubes that meet stringent international standards including IATF16949,DIN 2391, EN 10305-1/2/4, ASTM A519, and JIS G3445.

Our products feature exceptional dimensional accuracy (±0.025–0.08mm OD tolerance), superior surface finish (Ra ≤0.2–0.8μm), enhanced mechanical properties, and reliable performance under high pressure and fatigue conditions. We offer a wide range of specifications (OD 4–325mm, wall thickness 0.5–30mm) in steel grades like E235, E355, ST52, CK45, and more, with customizable options including honing, skiving, galvanizing, phosphating, and heat treatments (+C, +SR, +QT).

Serving global markets—including Japan, Europe, and beyond—we supply Tier 1/Tier 2 customers in hydraulic systems, automotive components (shock absorbers, steering), precision machinery, construction equipment, and industrial applications. Committed to quality, we hold ISO 9001/IATF 16949 certifications, provide EN10204 3.1/3.2 material certificates, and ensure stable delivery with flexible MOQs for both trial and bulk orders.

Hydraulic Cylinder Honed Tube
Hydraulic Cylinder Honed Tube
Hydraulic Cylinder Honed Tube
Hydraulic Cylinder Honed Tube

Quality Control at Our Honed Tube Factory

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Every honed tube passes three inspection stages before packing. Incoming material is verified against the mill certificate for grade and chemistry. During production, bore diameter is checked with air gauges and surface roughness with a profilometer at both tube ends. Before shipment, 100% of bores are inspected for scratches, pits and chatter marks, and ultrasonic testing is available on request. Each delivery ships with mill test certificate.
Hydraulic Cylinder Honed Tube

How to Order Honed Tubes: 4 Steps from Inquiry to Delivery

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Respond

1.Send Your Inquiry

Tell us the inner diameter, wall thickness, length, grade and quantity — or attach your drawing (PDF / DWG / STEP). Our engineering team replies within 12 hours on business days.
 
Customized-Designs

2.Confirm the Design

We return a drawing confirmation with tolerances, material certification requirements and pricing within 24 hours. OEM and fully custom designs are welcome.
 
Manufacturing

3.Production & Inspection

Your order enters the production plan at our Changzhou factory. Bore dimensions, surface roughness and NDT results are recorded for every batch and shared on request.
 
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4.Packaging & Delivery

Tubes are oiled, capped and packed to export standard, then shipped FOB Shanghai CIF together with the EN 10204 3.1 certificate.
 

Visit Our Honed Tube Factory in Changzhou

  • Founded in 2020, Changzhou Fengdie Metal Technology Co., Ltd. operates a 7000+ m² production facility in Changzhou, Jiangsu — about an hour from Shanghai by high-speed rail, and close to the ports of Shanghai and Ningbo for export loading.

    The plant runs the full honed tube process in-house: cold drawing lines, stress-relief annealing furnaces, multi-roll straightening machines, honing machines and a skiving & roller burnishing (SRB) line . Current output is 【待确认⑲：月产能】 tons of precision tubes per month, produced by a team of 100employees.

    A dedicated inspection room handles incoming material verification, air-gauge bore measurement, profilometer roughness testing and 100% eddy-current NDT. Every batch record is archived and traceable by heat number, so any tube can be traced back to its steel source years after delivery.

    Customers and third-party inspectors from SGS, BV or TÜV are welcome to audit the plant at any stage of production. Can't travel to China? We can arrange a live video factory tour and share full inspection records before shipment. Contact us to schedule a visit.
    • Cold rolling mill
    • Cold drawn tube production line
    • Finished tube warehouse
    • Tube straightening machine
Explore Our Other Precision Steel Tubes
Honed tubes are one part of our range — explore hydraulic cylinder pipe for pre-honed barrels, straight-seam welded pipe for structural use, and precision seamless steel pipes for machining applications.
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In addition to our flagship product, cold-rolled precision seamless steel pipes, our company also specializes in the production of hydraulic pipes (including internally honed/skived and roller-burnished hydraulic cylinder tubes) and various types of welded pipes (straight seam welded pipes, spiral welded pipes, etc.). This diversified product portfolio allows us to comprehensively cover multiple application fields, from high-end hydraulic/pneumatic systems (requiring high precision, high strength, and high pressure resistance) to general fluid transportation, structural support, construction engineering, and medium- and low-pressure pipelines. Whether you need high-precision cold-rolled precision pipes for precision machinery, durable hydraulic pipes for construction machinery, or economical welded pipes for infrastructure projects, we can provide stable and reliable product quality. We possess advanced cold rolling/cold drawing/welded pipe production lines, a comprehensive quality inspection system (certified to ISO 9001, IATF 16949, etc.), and support customized specifications and surface treatments, helping customers achieve the optimal balance of efficiency, durability, and cost-effectiveness in various scenarios.

Shipping and Delivery of Hydraulic Cylinder Honed Tube

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Our Shipping and Delivery Hydraulic Cylinder Honed Tube service is designed to provide customers with a reliable, efficient, and cost-effective supply chain solution for hydraulic cylinder honed tubes, precision honed tubing, cold drawn seamless honed tubes, ST52 E355 honed cylinder tubes, skived & roller burnished tubes, and high-precision ID honed pipes. As an experienced manufacturer and exporter of hydraulic cylinder honed tubes, we strictly control every step from production to final shipment — including quality inspection, anti-rust treatment, secure packaging, and global logistics — to ensure product quality remains intact throughout transportation and arrives ready for hydraulic cylinder manufacturing, pneumatic cylinder assembly, and heavy-duty industrial applications.

Each honed tube for hydraulic cylinders is meticulously treated with high-quality anti-rust oil (applied inside and outside for maximum corrosion protection), sealed with protective plastic end caps to safeguard the super-smooth bore (Ra ≤ 0.4 μm or finer), and packed in robust seaworthy wooden cases, steel frames, hexagonal bundles, plywood crates, or heavy-duty export-grade packaging with steel strapping, waterproof wrapping, and additional cushioning to prevent moisture ingress, impact damage, deformation, scratches, or corrosion during long-distance ocean freight, air transport, rail, or multimodal shipping.

We offer flexible shipping and delivery options for hydraulic honed tubes, including FOB (Free On Board – loading at origin port), CIF (Cost, Insurance and Freight – including marine insurance to destination port), and DDP (Delivered Duty Paid – full delivery with duties and taxes handled) Incoterms, tailored to different project needs, budgets, market requirements, and import regulations. By partnering with trusted international logistics providers and freight forwarders, we guarantee stable lead times, accurate real-time shipment tracking, and safe worldwide delivery of precision honed tubes to key regions including Europe, North America, South America, Middle East, Asia, Africa, and beyond.

Whether you require standard sizes (in-stock for rapid turnaround), custom hydraulic cylinder honed tube specifications (special tolerances H7/H8/H9/H10, cut-to-length, unique material grades like ST52, E355, CK45, SAE 1026, 27SiMn), or large-volume bulk orders, our efficient honed tube shipping system helps customers minimize inventory holding costs, shorten project timelines, accelerate production cycles, and maintain uninterrupted operations in construction machinery, agricultural equipment, mining machinery, offshore hydraulic systems, industrial automation, excavators, loaders, cranes, dump trucks, and other high-pressure hydraulic applications.

Key Benefits of Our Honed Tube Shipping & Delivery Services

Maximum Protection — Seaworthy export packaging (wooden crates, steel banding, anti-rust oil + caps) preserves the precision-honed internal surface, tight dimensional tolerances, and material integrity from factory to end-user.

What are offering about Hydraulic Cylinder Honed Tube?

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Hydraulic Cylinder Honed Tube (also known as honed tubing, honed cylinder tube, or hydraulic cylinder barrel) is a precision-engineered seamless steel tube with a highly smooth and accurate internal bore achieved through honing (or sometimes skived & roller burnished processes). This creates an ultra-smooth inner surface (typically Ra 0.2–0.4 μm roughness) that minimizes friction, ensures tight seals, reduces wear on pistons and seals, and supports high-pressure performance in hydraulic and pneumatic cylinders.
 

Materials
Carbon steel grades: SAE 1020, 1026, ST52/ST52.3 (most common), E355, 1045, 4140, 27SiMn.
Stainless steel: 304, 316, 316L (for corrosion-resistant applications).
Alloy steels for higher strength or specialized needs.

Size Range
Inside Diameter (ID, honed): From ~25–30 mm up to 800–1000 mm (or more in custom orders).
Outside Diameter (OD): Varies based on wall thickness.
Wall Thickness: 1/8 inch (≈3 mm) to 1 inch (≈25 mm) or thicker (up to 200 mm in some cases).
Length: Up to 12–20 meters (often supplied in standard lengths or cut-to-size).

Surface Finish and Tolerances
Inner surface roughness: Ra 0.2–0.4 μm (or better, down to <0.2 μm on request).
Tolerance: Typically H8 or H9 per DIN/ISO standards (precise ID dimensions, often ± side tolerances).
Straightness: Max 0.5 mm per meter.
Process: Honed (abrasive honing) or Skived & Roller Burnished (SRB) for even smoother finishes.

Types and Variants
Standard honed tubes (ready-to-use for cylinders).
Suitable-to-hone (pre-machined for final honing by the customer).
Internally chrome-plated or externally chrome-plated options for added corrosion resistance.
Telescopic cylinder tubes (for multi-stage cylinders).

Additional Benefits
High pressure resistance (seamless cold-drawn base material).
Excellent weldability for cylinder fabrication.
Custom options: Metric or imperial sizes, special grades, heat treatment, or non-standard dimensions.

FAQ of Hydraulic Cylinder Honed Tube

Fengdie Metal is a pioneering manufacturer, stockist, and supplier of steel pipe products.
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