Product Specifications
| Model No.: | 304 STAINLESS STEEL PNEUMATIC CYLINDER BARREL | Brand: | WEIYINGSI |
| Applicable Industry: | Cylinder | Place Of Origin: | FOSHAN,CHINA |
| Inner Roughness: | Ra< 0.4 um | Heat Resistant Temperature: | reach 200 degrees |
| Heat Treatment: | over 4 hour | Honing: | 2 times |
| Anodized Layer: | 15~25 um | Surface treatment: | 100 mesh fine sand |
| Working Pressure: | under 8 Mpa | Hardness: | hv 420 |

| Size | ID | OD | Tolerance | Thickness | Roundness | Straightness |
| 6*7 | 6 | 7 | ±0 .05 | 0.5 | 0.03 | 1.5mm/m |
| 8*9 | 8 | 9 | ±0 .05 | 0.5 | 0.03 | 1.5mm/m |
| 10*11 | 10 | 11 | ±0 .05 | 0.5 | 0.03 | 1.2mm/m |
| 12*13.4 | 12 | 13.4 | ±0 .05 | 0.7 | 0.03 | 1.2mm/m |
| 16*17.4 | 16 | 17.4 | ±0 .05 | 0.7 | 0.03 | 1mm/m |
| 20*21.4 | 20 | 21.4 | ±0 .05 | 0.7 | 0.04 | 1mm/m |
| 25*26.4 | 25 | 26.4 | ±0 .05 | 0.7 | 0.04 | 1mm/m |
| 32*33.6 | 32 | 33.6 | ±0 .05 | 0.8 | 0.05 | 1mm/m |
| 40*41.6 | 40 | 41.6 | ±0 .05 | 0.8 | 0.05 | 1mm/m |
| 50*52 | 50 | 52 | ±0 .05 | 1 | 0.05 | 1mm/m |
| 63*65 | 63 | 65 | ±0 .05 | 1 | 0.05 | 1mm/m |
Product Features

As one of the core components in the modern industrial field, 304 stainless steel cylinder barrel plays a key role in numerous precision equipment due to its excellent performance indicators. This cylinder tube product, manufactured with 304 stainless steel as the base material, achieves ultra-low roughness of the inner wall surface below 0.2 μ m through a unique integral molding process and electrolytic polishing technology, fully meeting the strict cleanliness requirements of the GMP certification system.
In the food and pharmaceutical industry, the application of 304 stainless steel cylinder barrel is particularly prominent. Its acid and alkali corrosion resistance can not only resist the erosion of various cleaning agents in filling equipment, but also withstand repeated sterilization treatment with 135 ℃ high temperature steam. The stability of this 304 stainless steel material effectively avoids the risk of medium contamination caused by oxidation and corrosion of traditional carbon steel cylinder barrels, making it the preferred solution for driving cylinders in sterile operation scenarios such as medical surgical robots.
From the perspective of product form, cylinder barrel can be divided into two major systems based on different application scenarios: hydraulic transmission and pneumatic drive. On the automotive engine testing platform, hydraulic cylinder barrels made of 304 stainless steel can withstand working pressures of over 50MPa; In automated spraying equipment, the specially treated cylinder barrel exhibits excellent wear resistance and a service life that is more than three times longer than ordinary materials.
It is worth noting that the environmental characteristics of 304 stainless steel cylinder barrel are also outstanding. Its 100% recyclable material characteristics are highly compatible with the sustainable development concept of pharmaceutical machinery. Combined with the dense oxide layer formed by the electrolytic polishing process, the cylinder maintains a constant surface state during long-term use, eliminating the possibility of heavy metal ion precipitation.
With the arrival of the Industry 4.0 era, this type of stainless steel component that integrates material science and precision manufacturing technology is extending from traditional anti-corrosion equipment to the field of intelligent manufacturing. Whether it is the pressure control system in process containers or the precise metering unit of filling machinery, 304 stainless steel cylinder barrel continues to drive the upgrading and innovation of modern industrial equipment with its excellent reliability and environmental adaptability.
Packaging & Delivery
| Selling Units: | Meter |
| Package Type: | 1. Film anti wear protection 2. Optional cardboard packaging 3. Use export wooden boxes for large quantities |
| Picture Example: | ![]() |
Supply Ability
| Transportation | Ocean,Land,Air,Express |
| Supply Ability | 100000Meters/month |
| Port | Foshan,Guangzhou,Shenzhen |
| Payment Type | L/C,T/T,Paypal |
| Incoterm | FOB,EXW |

FAQ
Q: Are you available to supply aluminum cylinder tube samples?
A: Yes, Weiyingjia is able to provide aluminum cylinder tube for you check quality,Normally stock sample is for free for saving your cost, but it will require mold cost if custom tube size.
Q: What’s your MOQ of aluminum cylinder tube?
A: If the require size we have stock.1pcs 2.4meter is ok.
Q: How long time of your aluminum cylinder tube to prepare?
A: It is only taking 7-10 days to complete your sample if the sample size is in stock.For bulk order, lead time according factory production plan, usually 7-25 days.
Q: What is payment terms of aluminum cylinder tube?
A: 30% T/T in advance, the balance payment is paid before shipment.
Q: Which type of surface finishes are you capable to make aluminum cylinder tube?
A: Normally Outer Hard Anodizing, Inner Matt sandy Anodizing.
Q: Are you trading company of factory?
A: We are manufacturer with over 20 years' experience in aluminum product,you will get top quality products and services. We can also OEM and ODM.
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