Airtac SAI50 Standard Cylinder SAI50BX425S
The AirTAC SAI50 Standard Cylinder SAI50BX425S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 425mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ50 mm
- Stroke425 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAI50 Standard Cylinder SAI50BX425S
The AirTAC SAI50X425-S is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and 425mm stroke. It delivers a push force of 982 N at 0.5 MPa, making it well-suited for medium-duty handling and positioning tasks. This specific configuration includes a SUS304 stainless steel piston rod for superior corrosion resistance and a magnetic piston (-S) for use with CMSE or DMSE proximity switches.
Unlike traditional tie-rod designs, this unit uses an extruded aluminum barrel with integrated sensor grooves on both sides. It operates efficiently between 30-800 mm/s and includes adjustable air cushions at both ends to manage impact. For high-temperature environments up to 70 C, the standard TPU seals handle the job, though Viton (H) options are available for hotter setups.
Airtac SAI50 Standard Cylinder SAI50BX425S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50BX425S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 425 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI50 Standard Cylinder SAI50BX425S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×425 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAI50 Standard Cylinder SAI50BX425S Is Used
Material Handling
Ideal for pushing or diverting packages along a conveyor line, utilizing the 425mm stroke to clear adjacent machinery safely.
Assembly Station
Drives pressing and clamping operations in automated assembly cells, where the 982 N force at 0.5 MPa securely holds components in place.
Vertical Lifting
Raises lightweight pallets or tote bins in packaging areas, taking advantage of the SUS304 rod to resist moisture and warehouse humidity.
Is the Airtac SAI50 Standard Cylinder SAI50BX425S the Right Cylinder?
Selecting this 50mm bore over the smaller 40mm bore gives you a significant thrust upgrade, jumping from 628 N to 982 N at 0.5 MPa. If your application requires even less force, stepping down to a 32mm bore yields 402 N. The 425mm stroke provides ample travel distance but requires careful mounting to prevent rod-bearing bending under side loads. Always use an external guide rail or a fully guided cylinder to support the load and prevent premature wear on the front cover bearing.
As an ISO 15552 profile cylinder, the SAI50X425-S is dimensionally interchangeable with other ISO 15552 cylinders, matching the standard 50mm mounting footprint, G1/4 PT port, and M16x1.5 rod thread. If your machinery requires the load to stay fixed when air pressure is removed, note that a standard cylinder will drift; you should specify the SAIL variant with an air-released lock or utilize an external pilot-operated check valve.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAI50 Standard Cylinder SAI50BX425S FAQ
At a standard 0.5 MPa operating pressure, this 50mm bore cylinder provides a push force of 982 N and a pull force of 825 N. It can reach a maximum push force of 1767 N at 0.9 MPa.
Yes, the SAI50X425-S is a true ISO 15552 profile cylinder, making it dimensionally interchangeable with other standard ISO 15552 cylinders of the same bore size. It matches the standard mounting dimensions, G1/4 port, and M16x1.5 rod thread.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAI50 Standard Cylinder SAI50BX425S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.