Airtac SAI50 Standard Cylinder SAI50AX350S
The AirTAC SAI50 Standard Cylinder SAI50AX350S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 350mm 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
- Stroke350 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 SAI50AX350S
The AirTAC SAI50X350-S is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa. Its 350 mm stroke provides the extended travel needed for material handling and automated ejection tasks. Built with an extruded aluminum barrel, this unit omits tie-rods for a clean exterior while maintaining strict dimensional interchangeability with other ISO 15552 cylinders.
This configuration includes a magnetic piston (-S) for seamless integration with CMSE or DMSE reed switches along the dual sensor grooves. The piston rod is constructed from SUS420J2 stainless steel, offering enhanced resistance to corrosion and wear compared to standard carbon steel. PT tapered port threads ensure a robust, leak-free pneumatic connection in demanding industrial environments.
Airtac SAI50 Standard Cylinder SAI50AX350S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX350S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 350 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 SAI50AX350S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×350 | 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 SAI50AX350S Is Used
Extended Transfer Ejection
Pushes completed parts off a conveyor belt over a 350 mm gap. The 982 N thrust at 0.5 MPa easily handles lightweight plastic or aluminum components.
Pallet Push-off Station
Diverts corrugated cartons from a main packaging line. The magnetic piston allows DMSE sensors to confirm full extension before the diverter retracts.
Long-Reach Clamping Actuator
Extends across a wide machine bed to hold a workpiece in place during a machining cycle. The SUS420J2 rod withstands minor moisture exposure in wet cutting areas.
Is the Airtac SAI50 Standard Cylinder SAI50AX350S the Right Cylinder?
Selecting this 50 mm bore makes sense when a 40 mm bore (628 N at 0.5 MPa) lacks the necessary thrust, but a larger 63 mm bore (1559 N at 0.5 MPa) would cause unnecessary energy consumption. The 350 mm stroke falls well within the 1200 mm maximum standard stroke for this bore, but at this length, side loads can induce severe bending stresses on the rod bearing. To prevent premature seal failure, utilize an external guide rail or a dedicated guided cylinder to absorb lateral forces.
As a standard double-acting cylinder, this model relies on continuous air pressure to maintain its position; if air is exhausted, the load will drift. Do not depend on the adjustable air cushions to hold a load mid-stroke. For drop prevention, consider pairing this cylinder with the SAIL locking variant or an external pilot-operated check valve. To match this exact ISO 15552 replacement, specify a 50 mm bore, 350 mm stroke, PT G1/4 port, and an FA flange or LB foot mounting accessory.
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 SAI50AX350S FAQ
At an operating pressure of 0.5 MPa, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 1374 N.
Yes, the SAI50X350-S is a true ISO 15552 profile cylinder, making its mounting dimensions interchangeable with other ISO 15552 cylinders. You can swap it directly without altering your existing machine mounting footprint.
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