Aluminum Pneumatic Cylinder Tubes
Extruded Aluminum Tubes for Air Cylinders & Actuators
What is Pneumatic Cylinder Tubes
Pneumatic cylinder tubes are precision aluminum tubes used as the main barrel of pneumatic cylinders. They house the piston and seals, requiring a smooth inner surface, accurate dimensions, and stable mechanical performance to ensure reliable motion, airtightness, and long service life. These tubes are widely used in industrial automation, machinery, material handling systems, and pneumatic equipment.
How is Pneumatic Cylinder Tubes Produced
Pneumatic cylinder tubes are typically produced by aluminum extrusion, followed by precision drawing or honing to achieve a fine inner surface finish. Depending on application requirements, they may also undergo heat treatment, straightening, cutting, and surface finishing such as anodizing. Strict control of alloy selection, wall thickness, and inner diameter tolerance ensures consistent quality for pneumatic cylinder assembly.
Aluminum Air Cylinder Tube Types
HTS-ALU offers a full range of aluminum air cylinder tube types to meet different pneumatic system designs and application requirements. Our product range includes standard round pneumatic cylinder tubes for general use, compact cylinder tubes for space-limited installations, and ISO standard pneumatic cylinder tubes compatible with global cylinder standards. We also supply specialized solutions such as dual rod and slide table cylinder tubes, guide rod cylinder tubes, special profile cylinder tubes, as well as air gripper and mini cylinder tubes, supporting both standard production and custom pneumatic cylinder designs.
ISO & Industry Standards We Support
HTS-ALU manufactures aluminum pneumatic cylinder tubes and profiles compatible with widely used ISO and industry standards. These standards ensure dimensional consistency, reliable sealing performance, and interchangeability for automation and pneumatic systems. Our profiles are designed for OEM compatibility and industrial integration, for reference only, and are not affiliated with or produced by the original brand owners.
ISO 15552 Pneumatic Cylinder Tubes
ISO 15552 cylinder tubes are widely used for medium and large bore pneumatic cylinders in industrial automation. These profiles support standardized mounting dimensions and interchangeable components, making them suitable for general-purpose and heavy-duty pneumatic applications.
ISO 6431 / VDMA 24562 Cylinder Profiles
ISO 6431 and VDMA 24562 profiles are commonly used for classic round and profile pneumatic cylinders. They offer standardized interfaces and are widely adopted in European and global pneumatic systems for stable and reliable performance.
ISO 21287 Compact Cylinder Tubes
ISO 21287 compact cylinder tubes are designed for space-saving pneumatic applications. With shorter overall length and integrated profile structures, these tubes are ideal for automation equipment where installation space is limited.
OEM-Compatible Profiles
We provide aluminum cylinder tube profiles compatible with common OEM designs, including references to SMC, Festo, and Airtac standards. These profiles are manufactured based on market dimensions and application requirements and are offered for compatibility and reference only, without any brand affiliation.
Manufacturing Process of Air Cylinder Tubes
The manufacturing process of air cylinder tubes starts with aluminum ingot melting and casting, followed by billet homogenizing and heating. The heated billets are extruded into tube profiles, then straightened and precision-machined to achieve accurate inner bore quality. After cutting to length, the tubes undergo surface finishing such as honing, polishing, sand blasting, and anodic oxidation. Final inspection and packaging ensure each air cylinder tube meets dimensional accuracy, surface quality, and performance requirements before delivery.
Aluminum Extrusion Process – High-quality aluminum billets are extruded into round or special-profile tubes with consistent wall thickness and structural stability.
Precision Bore Machining – The inner bore is honed or precision-drawn to achieve tight tolerances and a smooth surface finish suitable for seals and piston movement.
Cut-to-Length & Secondary Machining – Tubes are cut to specified lengths and can undergo additional machining such as drilling, slotting, or threading as required.
Quality Control & Inspection – Dimensional accuracy, surface quality, straightness, and concentricity are inspected to meet pneumatic cylinder standards before delivery.
Why Choose Us as Your Cylinder Tube Supplier
Focused on Aluminum Cylinder Tube Extrusion
We specialize in aluminum pneumatic cylinder tubes, with dedicated extrusion, honing, and finishing processes designed specifically for air cylinder applications.OEM & ODM Custom Profiles
From ISO-standard tubes to special-profile and OEM-compatible designs, we support custom drawings, samples, and brand-specific requirements.Stable Quality for Export Markets
Our cylinder tubes are produced with consistent bore accuracy, surface finish, and straightness, meeting the reliability demands of international markets.Low MOQ & Bulk Production Capability
We offer flexible order quantities for prototyping and small batches, while also supporting stable large-volume production for long-term supply.
Aluminum Cylinder Tube Processing Capabilities
As a leading aluminum extrusion manufacturer based in China, we are committed to providing high-quality aluminum profiles for a wide range of industries. Our capabilities start with custom mold design and manufacturing, ensuring precise extrusion shapes that meet the specific needs of our clients. From raw extrusion to surface finishing and advanced machining, our fully integrated manufacturing processes enable us to deliver aluminum profiles that meet exacting standards and cater to the unique requirements of each project.
Mold Design and Development
We possess the expertise to design and produce extrusion molds in-house, ensuring precision and efficiency in aluminum profile manufacturing. Our experienced team works closely with clients to develop custom molds based on drawings or samples, ensuring optimal performance for their specific requirements. Typically, the mold production process takes about 7 days, after which we provide samples for client confirmation before beginning full-scale production.
Aluminum Profile Extrusion
Our production facility houses over 40 advanced extrusion lines, featuring cutting-edge equipment such as a powerful 6000-ton extrusion press. This enables the creation of aluminum profiles in various sizes and forms, ranging from standard industrial applications to specialized products like thermal break profiles for high-end doors and windows. The flexibility of our extrusion capability ensures we can cater to a broad spectrum of industries, including construction and precision engineering.
Surface Treatment
With advanced surface treatment capabilities, our facility features 1 anodizing and electrophoretic coating line for enhanced corrosion resistance, 4 powder coating stations (including 2 horizontal and 2 vertical units) for durable finishes, 1 PVDF fluorocarbon spray line for superior weather resistance, 6 wood grain transfer lines for elegant decorative effects, and 2 sandblasting units for optimal surface preparation.
Machining and Fabrication
To provide complete aluminum profile solutions, we offer extensive further processing capabilities. Our services include CNC machining, milling, threading, drilling, precision cutting, punching, welding, assembly, as well as surface marking options such as silk-screen printing and laser engraving for logos or identification. This comprehensive range of fabrication options allows us to deliver ready-to-use profiles tailored to exact project specifications, offering unmatched flexibility, traceability and reliability to our customers.
Aluminum Materials & Surface Treatment
Aluminum Alloys for Cylinder Tubes (6063 / 6061)
Pneumatic cylinder tubes are commonly produced from 6063 and 6061 aluminum alloys. 6063 offers excellent extrudability and surface finish, making it ideal for standard and ISO cylinder tubes, while 6061 provides higher mechanical strength for applications requiring increased load capacity.
Inner Bore Honing & Surface Roughness
The inner bore is precision-honed to achieve a smooth and consistent surface, ensuring low friction, reliable sealing, and long service life of piston seals. Surface roughness is tightly controlled to meet pneumatic system performance requirements.
Anodizing Options for Pneumatic Cylinder Tubes
Cylinder tubes can be supplied with clear anodizing or hard anodizing on the outer surface to improve corrosion resistance, wear resistance, and appearance. Anodizing also enhances durability in humid, industrial, or high-cycle operating environments.
Tolerance & Straightness Control
Strict control of inner diameter tolerance, wall thickness, straightness, and ovality ensures stable assembly and smooth piston movement. Each tube is inspected to meet ISO and industry standards for dimensional accuracy and consistency.
Applications of Pneumatic Cylinder Tubing
Pneumatic cylinder tubing is widely used across industrial automation and mechanical systems where precise linear motion, durability, and stable air pressure performance are required. Common applications include:
Automation Equipment
Used in automated production lines, robotic systems, and assembly equipment to provide smooth and reliable linear motion.Packaging Machinery
Applied in filling, sealing, labeling, and conveying systems where fast, repetitive cylinder action is essential.Industrial Actuators
Serves as the core structural component of pneumatic actuators used in material handling, clamping, lifting, and positioning tasks.OEM Pneumatic Cylinder Manufacturing
Widely used by cylinder manufacturers for producing standard and customized pneumatic cylinders compatible with ISO and industry specifications.
Common Aluminum Cylinder Tubes
Aluminum cylinder tubes can be categorized into various types based on structure and functionality. These include standard round tubes and profiled tubes, surface treatment types such as anodized, hardcoat anodized, and powder-coated variants, as well as precision grades like standard tolerance and precision-ground tubes. Functional classifications cover lightweight thin-wall tubes, high-pressure-resistant models, and self-lubricating designs. Custom options like grooved tubes and composite multilayered tubes are also available to meet specialized industrial requirements.
| NO. | d | E | A | T | 4-Φd1 |
|---|---|---|---|---|---|
| 1 | Φ32 | 44×44 | 32.5×32.5 | 8.2 | M6 Φ5.1 |
| 2 | Φ40 | 51×51 | 38×38 | 11 | M6 Φ5.1 |
| 3 | Φ50 | 64×64 | 46.5×46.5 | 17 | M8 Φ6.7 |
| 4 | Φ63 | 75×75 | 56.5×56.5 | 26 | M8 Φ6.7 |
| 5 | Φ80 | 93×93 | 72×72 | 28 | M10 Φ8.7 |
| 6 | Φ100 | 111×111 | 89×89 | 35 | M10 Φ8.7 |
| 7 | Φ125 | 134×134 | 110×110 | 55 | M12 Φ10.3 |
| NO. | d | D | T | S | E | 4-d |
|---|---|---|---|---|---|---|
| 1 | Φ32 | Φ36.5 | 33x33 | 55.3x55.3 | 10 | Φ5.2 |
| 2 | Φ40 | Φ44.5 | 37x37 | 65x65 | 10 | Φ5.2 |
| 3 | Φ50 | Φ55.3 | 47x47 | 77x77 | 12 | Φ5.2 |
| 4 | Φ63 | Φ68 | 56x56 | 93x93 | 12 | Φ6.8 |
| 5 | Φ80 | Φ85.8 | 70x70 | 115x115 | 15 | Φ8.7 |
| 6 | Φ100 | Φ106 | 84x84 | 135x135 | 15 | Φ8.7 |
| NO. | d | E | S | T | 4-d1 | M | N |
|---|---|---|---|---|---|---|---|
| 1 | Φ20 | 34x34 | 36 | 24x24 | Φ4.2 | 11.3 | 10 |
| 2 | Φ25 | 40x40 | 42 | 28x28 | Φ4.6 | 12 | 10 |
| 3 | Φ32 | 44x44 | 50 | 34x34 | Φ4.6 | 18.3 | 15 |
| 4 | Φ40 | 52x52 | 58.5 | 40x40 | Φ6.5 | 21.3 | 16 |
| 5 | Φ50 | 62x62 | 71.5 | 48x48 | Φ6.5 | 30 | 20 |
| 6 | Φ63 | 75x75 | 84.5 | 60x60 | Φ6.5 | 28.7 | 20 |
| 7 | Φ80 | 94x94 | 104 | 74x74 | Φ9.2 | 36 | 26 |
| 8 | Φ100 | 114x114 | 124 | 90x90 | Φ11.3 | 35 | 26 |
| ID d | OD D | Thickness |
|---|---|---|
| Φ20 | Φ25 | 2.5 |
| Φ25 | Φ30 | 2.5 |
| Φ30 | Φ35 | 2.5 |
| Φ32 | Φ37 | 2.5 |
| Φ35 | Φ40 | 2.5 |
| Φ40 | Φ45 | 2.5 |
| Φ50 | Φ55 | 4.5 |
| Φ63 | Φ59 | 3 |
| Φ63 | Φ69 | 5 |
| Φ63 | Φ73 | 2.5 |
| Φ70 | Φ75 | 2.5 |
| Φ75 | Φ80 | 3 |
| Φ80 | Φ86 | 3.5 |
| Φ80 | Φ87 | 3 |
| Φ100 | Φ106 | 3.5 |
| Φ100 | Φ107 | 5 |
| Φ100 | Φ110 | 5 |
| Φ125 | Φ135 | 5 |
| Φ200 | Φ210 | 5 |
| Φ250 | Φ262 | 6 |
| Φ300 | Φ316 | 8 |
| Φ320 | Φ336 | 8 |
| NO. | d | E | A | B |
|---|---|---|---|---|
| 1 | Φ10 | 42 | 18 | 17 |
| 2 | Φ16 | 54 | 24 | 21 |
| 3 | Φ20 | 62 | 28 | 25 |
| 4 | Φ25 | 73 | 34 | 30 |
| 5 | Φ32 | 96 | 42 | 40 |
About HTS-ALU
HTS New Materials (Jiangxi, China) is a leading aluminum extrusion manufacturer with 40+ advanced lines and presses up to 6,000 tons. We supply profiles for construction, industrial uses, and premium doors/windows, including thermal-break profiles.
Capabilities include anodizing, powder coating, fluorocarbon coating, and wood-grain transfer. We also offer end-to-end machining and fabrication: CNC, milling, punching, drilling, threading, precision cutting, welding, and assembly—delivering ready-to-use, project-specific solutions.
Custom Extrusion Steps
- Share your CAD/STEP files or a physical sample.
- We create manufacturing drawings.
- You review and approve the drawings.
- We manufacture the extrusion die.
- We run a trial extrusion.
- You validate and sign off the samples.
- We begin mass production.
- Typical extrusion lead time is about 15 days.
- Extra time is added for finishing or machining.
- We perform in-process inspections.
- We conduct final inspections before shipment.
- We protect each profile to prevent abrasion.
- We pack per your requirements.
- We arrange shipment by sea, air, rail, or multimodal.
Surface Options
Alloys for Extruded Profiles
- 6063 (T5/T6)
- 6061 (T6/T6511)
- 6060 (T5)
- 6005/6005A (T5/T6)
- 6082 (T6)
- 6101 (T6/T61)
- 7075 (T6/T73)
- 2024 (T351)
Aluminum Profile Weight per Meter
Formula: W(kg/m) = A(mm²) × 0.00272 or A(cm²) × 0.272
Packing Options
- Single-piece protective film separation
- Blister packaging
- Carton packaging
- Wooden crate packaging
- Palletization
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Our Factory
Our factory is equipped with 40 extrusion production lines to efficiently manufacture aluminum profile. We have one anodizing and electrophoresis line, along with two vertical spraying machines and two horizontal spraying machines for surface treatment. Additionally, we operate two sandblasting machines and six wood grain transfer printing lines, enabling us to provide various aesthetic finishes. To support our production, we also have furnaces for casting aluminum bars, aging furnaces, annealing furnaces, water cooling treatment equipment, and machining equipment, ensuring comprehensive capabilities for high-quality output.
