Hydraulic Cylinder Barrel
hydraulic cylinder barrel | Pneumatic Cylinder Barrel
A hydraulic cylinder barrel is the main cylindrical body of a hydraulic cylinder, used in linear motion applications. The barrel contains the hydraulic fluid (typically oil) that generates force to extend and retract the piston (rod) inside the cylinder.
- Material: Typically made of high-strength steel or aluminum to withstand pressure and stress from the hydraulic fluid.
- Function: The barrel connects the cylinder head and rod, with fluid pressure either extending or retracting the piston as required by the application.
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Category |
Details |
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Product Name |
Hydraulic Cylinder Barrel, Pneumatic Cylinder Barrel |
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Brand |
Myler Steel |
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Certificate of Origin |
China, Wuxi |
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Materials Available |
SAE 1020, SAE 1026, SAE 1030/1035, E355, E255, E215, E235, ST52 / ST52.3, St35, St37.4, SAE 4140, 42CrMo, 27SiMn, CK45, and more… |
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Delivery Heat Treatment Conditions |
DIN 2391: BK, BK+S, GBK, NBK EN 10305-1: +C, +SR, +LC, +A, +N |
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Dimension Range |
Metric: I.D. 32 mm to 800 mm, Wall thickness 3 mm to 50 mm Imperial: I.D. 1.5″ to 36″, Wall thickness 1/8″ to 2″ |
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Length |
Max Length: 13 meters Custom Cut Length Service Available |
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Inner Diameter Surface Roughness |
Ra 0.2 μm to Ra 0.4 μm |
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Outer Diameter Surface Roughness |
Ra ~1.6 μm |
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Straightness |
0.5 mm per 1000 mm length |
Our Hydraulic Cylinder Barrels and Pneumatic Cylinder Barrels are engineered for high-performance applications across industries. Manufactured using premium materials such as SAE 1020, SAE 4140, E355, ST52, 42CrMo, and others, these products provide exceptional strength and longevity, making them ideal for a range of industrial hydraulic systems, heavy machinery, and agricultural equipment.
With precise inner diameter (I.D.) ranging from 32 mm to 800 mm (metric) and 1.5″ to 36″ (imperial), and wall thicknesses from 3 mm to 50 mm, our custom hydraulic cylinder barrels are adaptable to any requirement, whether for high-pressure hydraulic applications or pneumatic systems. These tubes are designed to deliver superior performance in high-pressure hydraulic systems, industrial equipment, and more.
Our barrels undergo strict heat treatment processes according to DIN 2391 and EN 10305-1 standards, ensuring exceptional reliability and pressure resistance for hydraulic tube suppliers and OEM manufacturers. The inner diameter surface roughness is finished to Ra 0.2–0.4 μm, and the outer diameter is polished to Ra ~1.6 μm, reducing wear and improving sealing performance.
With lengths up to 13 meters and the option for custom cut length services, these cylinders meet the diverse needs of businesses in construction machinery, mining, and automotive industries. The products also maintain a straightness tolerance of 0.5 mm per 1000 mm length for precise alignment in complex applications.
Category | Details |
Materials Available | SAE 1020, SAE 1026, SAE 1030/1035, E355, E255, E215, E235, ST52 / ST52.3, St35, St37.4, SAE 4140, 42CrMo, 27SiMn, CK45, and more. |
Chemical Composition | The following is an example of the typical chemical composition for the most commonly used materials: |
SAE 1020 | C: 0.18–0.23%, Mn: 0.30–0.60%, P: 0.04% max, S: 0.05% max, Fe: Balance |
SAE 1026 | C: 0.22–0.28%, Mn: 0.60–0.90%, P: 0.04% max, S: 0.05% max, Fe: Balance |
SAE 4140 | C: 0.38–0.43%, Mn: 0.75–1.00%, Cr: 0.80–1.10%, Mo: 0.15–0.25%, P: 0.035% max, S: 0.040% max, Fe: Balance |
42CrMo | C: 0.38–0.45%, Mn: 0.60–0.90%, Cr: 0.90–1.20%, Mo: 0.15–0.25%, P: 0.035% max, S: 0.035% max, Fe: Balance |
E355 | C: 0.22–0.28%, Mn: 1.10–1.60%, Si: 0.40–0.70%, P: 0.035% max, S: 0.035% max, Fe: Balance |
Dimensions Range | Metric: I.D. 32 mm to 800 mm, Wall Thickness: 3 mm to 50 mm |
Length | Max Length: 13 meters |
Inner Diameter Surface Roughness | Ra 0.2 μm to Ra 0.4 μm |
Outer Diameter Surface Roughness | Ra ~1.6 μm |
Straightness | 0.5 mm per 1000 mm length |
Our Hydraulic Cylinder Barrels and Pneumatic Cylinder Barrels are designed for high-performance applications in industrial hydraulic systems, heavy machinery, construction equipment, and agricultural machinery. Made from premium materials such as SAE 1020, SAE 4140, E355, 42CrMo, and others, these barrels are built to offer superior strength, durability, and reliability. The materials are selected for their specific chemical compositions to meet the demands of various hydraulic applications, with SAE 1020 offering low-stress performance, SAE 4140 providing high strength for heavy-duty operations, and 42CrMo offering excellent hardness for industrial hydraulic components. We offer a range of dimensions with metric sizes from I.D. 32 mm to 800 mm and wall thickness from 3 mm to 50 mm, and imperial sizes from I.D. 1.5″ to 36″ and wall thickness from 1/8″ to 2″. Custom lengths up to 13 meters are available with custom cut length services. The inner diameter surface roughness ranges from Ra 0.2 μm to Ra 0.4 μm, ensuring smooth sealing and minimal wear, while the outer diameter surface roughness is around Ra ~1.6 μm, ensuring optimal sealing performance. Our products meet high standards for straightness, with a tolerance of 0.5 mm per 1000 mm length. We are a leading Hydraulic Cylinder Barrel Supplier, providing high-pressure hydraulic tubes and custom hydraulic cylinder barrels for industries like heavy machinery, construction machinery, and hydraulic systems.
Standard | Description | Details/Requirements |
DIN 2391 | Standard for Seamless Precision Steel Tubes | Specifies the requirements for seamless cold-drawn precision steel tubes. Includes testing methods, mechanical properties, and tolerances. |
Material Grades | Steel Grades: E235, E355, ST37, ST52, etc. | Defines various steel grades for hydraulic tubes, such as E235, E355, ST37, ST52, with specific mechanical properties and tolerances. |
Tolerances | ID and OD Tolerances | Typically for tubes: ±0.1 mm for the inner diameter and ±0.2 mm for the outer diameter. |
Mechanical Properties | Yield Strength (min) | Yield Strength: ≥235 MPa for E235 grade, ≥355 MPa for E355 grade. |
Surface Quality | Roughness and Surface Finish | Surface roughness: ID ≤ Ra 0.4 µm (max), OD ≤ Ra 1.6 µm (max). |
Testing | Hydrostatic Testing & Eddy Current Testing | Hydrostatic test pressure: 1.5 times the working pressure. Eddy current tests for internal defects. |
Standard | Description | Details/Requirements |
EN 10305-1 | Seamless Steel Tubes for Precision Applications | Specifies the general requirements for seamless tubes, including tolerances, surface finish, and mechanical properties. |
Material Grades | Steel Grades: E235, E355, ST52, etc. | Tubes must be made from high-quality steel, with specific chemical compositions for each grade, e.g., C: 0.22–0.28% for E235. |
Tolerances | Dimensional Tolerances (ID & OD) | ID Tolerance: H8, H9 for fine tolerances. OD tolerance: +0.3 mm to +0.5 mm. |
Mechanical Properties | Yield Strength, Tensile Strength | Yield Strength: ≥235 MPa for E235 grade, ≥355 MPa for E355 grade. |
Surface Quality | Finish and Roughness | ID Surface Finish: Ra 0.2 μm to Ra 0.4 μm; OD Surface Finish: Ra ~1.6 μm. |
Standard | Description | Details/Requirements |
ISO 9001 | Quality Management Systems | Specifies requirements for a quality management system to ensure consistent quality in products and services. |
Key Requirements | Product Quality, Documentation, Traceability | Requires documentation of production processes, traceability of materials, and product quality control. |
Testing and Inspections | Regular Inspections, Testing Certificates | All products undergo quality checks, with certifications for each batch produced. |
Audit and Certification | Compliance with ISO 9001 | Regular audits and continuous improvements in manufacturing processes to ensure product quality and customer satisfaction. |
Standard | Description | Details/Requirements |
ASTM A519 | Seamless Carbon and Alloy Steel Mechanical Tubing | Specifies the requirements for mechanical tubing, including manufacturing processes, tolerances, and testing for seamless tubes. |
Material Grades | Carbon and Alloy Steel Tubes | Covers a wide range of grades, such as 1020, 1045, 4140, 4145, with mechanical properties based on chemical composition. |
Mechanical Properties | Yield Strength, Tensile Strength, Hardness | For example, 4140 alloy tube yield strength ≥ 415 MPa, tensile strength ≥ 620 MPa. |
Surface Quality | Surface Finish and Defects | Requires a smooth surface finish (Ra 1.6 μm max), free from visible defects like cracks and pits. |
Testing | Hydrostatic, Tensile, and Hardness Testing | Hydrostatic pressure testing required at 1.5x working pressure; hardness tests (Rockwell, Brinell) included. |
Features of Hydraulic Cylinder Barrels
1. High Precision Tolerances:
Our precision hydraulic cylinder barrel manufacturing ensures that our products meet strict tolerance standards, including inner diameter (I.D.) tolerances of H7, H8, H9, suitable for a wide range of hydraulic and pneumatic systems.
2. Seamless Tube Construction:
As a trusted high-pressure hydraulic tube manufacturer, we use cold-drawn seamless tubes, which offer superior pressure resistance and durability, making them ideal for heavy-duty hydraulic applications.
3. Smooth Inner Surface:
With an inner surface roughness of Ra 0.2 to 0.4 μm, our seamless hydraulic tubes for industrial applications deliver improved sealing performance and reduced wear on seals and piston rods.
4. Wide Range of Material Grades:
We offer customizable materials like SAE 1020, SAE 4140, E355, and ST52, ensuring that we meet the specific operational conditions for different industries and applications, including agricultural equipment and construction machinery.
5. Excellent Weldability:
The hydraulic barrel for construction machinery is designed with excellent weldability, facilitating easy assembly during hydraulic cylinder barrel production.
6. Customizable Dimensions and Length:
We provide both custom hydraulic cylinder barrels and standard options, with dimensions ranging from I.D. 32 mm to 800 mm, and wall thickness from 3 mm to 50 mm, suitable for heavy machinery and industrial hydraulic systems.
Advantages of Hydraulic Cylinder Barrels
1. High Pressure Resistance:
As a hydraulic cylinder barrel supplier, we ensure that our products can withstand higher pressures, making them suitable for heavy-duty hydraulic applications in industries such as construction, mining, and agriculture.
2. Increased Longevity and Reliability:
These custom hydraulic barrels offer longer service life and durability, reducing the need for frequent replacements in hydraulic systems used in harsh conditions.
3. Versatile Applications:
With their customizable features, our hydraulic cylinders for industrial applications are suitable for various industries like pneumatic systems, agriculture, marine, and construction machinery.
4. Cost-Effective:
Offering high-quality hydraulic cylinder barrels for heavy machinery, we ensure long-term cost savings by providing reliable products with extended operational lifespans.
5. High-Quality Standards:
As an ISO-certified hydraulic cylinder barrel exporter, we ensure that all our products meet international quality standards like DIN 2391, EN 10305-1, and ASTM A519.
Applications of Hydraulic Cylinder Barrels
1. Hydraulic Systems for Heavy Machinery:
Our hydraulic cylinder tubes for heavy machinery are used in construction equipment like cranes, excavators, and loaders, where high pressure and strength are essential.
2. Pneumatic Systems for Industrial Applications:
Ideal for pneumatic cylinder barrel wholesale, these barrels are used in automated systems in industries like packaging, robotics, and material handling.
3. Agricultural Equipment:
The hydraulic cylinder tube for agricultural equipment is used in tractors, harvesters, and other agricultural machinery to ensure precise, reliable motion for various farming applications.
4. Construction and Industrial Equipment:
In construction machinery, our hydraulic cylinder barrels provide the strength and reliability needed to perform under tough conditions, improving overall equipment performance and safety.
Packaging of Hydraulic Cylinder Barrels
1. Wooden Crates:
To protect the hydraulic cylinder tube for heavy machinery and other products during transport, we package them in custom-designed wooden crates.
2. Steel Banding:
Barrels are secured using steel banding, ensuring safe delivery of hydraulic cylinders for industrial applications with minimal risk of damage.
3. Plastic Wrap:
For additional protection, especially for pneumatic cylinder barrel wholesale products, we wrap the barrels in plastic to protect them from dust, moisture, and environmental damage.
4. Plastic Bags:
When necessary, we enclose the hydraulic cylinder barrels in moisture-proof plastic bags, secured with banding to prevent rusting.
5. Oil Coating:
An oil coating on both the inside and outside of the hydraulic barrel for construction machinery ensures rust prevention during transit.
Frequently Asked Questions
Question 1: What if I need customized hydraulic cylinder barrels in large quantities?
We understand that wholesalers often have unique demands. We offer custom hydraulic cylinder barrels tailored to your specifications, including custom lengths, material types, and dimensions. Whether you need seamless hydraulic tubes for heavy machinery or hydraulic cylinders for agricultural equipment, we can fulfill bulk orders with the flexibility you need.
Question 2: How do I know if your hydraulic cylinder barrels are of high quality?
Quality is our top priority. All of our hydraulic cylinder barrels undergo stringent heat treatment and are tested for surface roughness (Ra 0.2 μm to Ra 0.4 μm for inner diameters) to ensure they meet international standards. We also provide certificates of origin and compliance with ISO 9001 for industrial hydraulic components to guarantee that our products are reliable for your wholesale distribution.
Question 3: What if I have urgent orders or require a quick turnaround?
We understand that wholesalers often deal with tight deadlines. Our standard lead time is 4-6 weeks, but we also offer expedited production for urgent orders. Please contact us directly to discuss your specific timeline, and we will work with you to meet your needs.
Question 4: How do you ensure the hydraulic cylinder barrels are delivered safely?
As a hydraulic cylinder barrel exporter, we take extra care with packaging to avoid any damage during shipping. Our barrels are packed securely using wooden crates, plastic wrap, and steel banding to prevent rust and abrasion, ensuring they arrive in perfect condition. We also provide oil coating on both the inside and outside to protect against corrosion.
Question 5: Can you accommodate smaller batch orders, or do I need to order in bulk?
We cater to both large-volume and small-batch orders. If you need only a few pieces for a specific project or to test the market, we can supply small quantity orders, even for just a single hydraulic cylinder barrel or pneumatic cylinder barrel. This gives you the flexibility to purchase in smaller quantities without being locked into large minimum order requirements.
Question 6: What if the specifications I need aren't listed in your catalog?
We specialize in custom hydraulic barrel production. If the specifications you’re looking for are not listed, we can easily modify our existing products or create new ones to fit your needs. Whether it’s a different material grade, size, or surface finish, we’re able to accommodate custom requests for hydraulic tubes and pneumatic cylinder barrels.
Question 7: What industries do your hydraulic cylinder barrels serve?
Our products are ideal for a wide range of industries, including construction, agriculture, mining, and automotive. We provide high-quality hydraulic barrels that meet the demands of both light-duty and heavy-duty machinery, ensuring that your customers in these sectors get the best possible performance.
Question 8: How do I know your prices are competitive for bulk purchases?
We strive to offer competitive wholesale pricing without compromising on quality. For large-volume orders, we offer attractive discounts and flexible payment terms. Contact us to get a tailored quote that fits your specific requirements.
Question 9: What are the payment and shipping terms for bulk orders?
We offer flexible payment terms to suit your needs, including letter of credit, wire transfers, and other options. As for shipping, we handle everything from domestic delivery to international exports, providing a smooth and reliable service to wholesalers worldwide. We work with trusted shipping partners to ensure timely and cost-effective delivery.
Question 10: How can I be assured that your products will meet industry standards?
Our hydraulic cylinder barrels are manufactured according to international standards, including DIN 2391, EN 10305-1, and ASTM A519. We also offer ISO 9001 certification for quality management, ensuring that every batch of products is manufactured to meet industry standards and specifications.
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