Airtac SAIJ50 Adjustable Cylinder SAIJ50AX500-10S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX500-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 500mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke500 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 SAIJ50 Adjustable Cylinder SAIJ50AX500-10S
The AirTAC SAIJ50X500-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 490-500 mm from its 500 mm nominal stroke. Delivering 982 N of push force at 0.5 MPa, it is built with an SUS420J2 stainless steel rod for enhanced durability against side loads. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet works seamlessly with AirTAC CMSE reed and DMSE electronic sensors.
This adjustable-stroke variant allows you to fine-tune the retract end position at commissioning without swapping the cylinder or adding external stops. It uses a PT tapered port (G1/4) and supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. The rear adjuster acts strictly as a travel stop, meaning it does not hold the load without live air pressure.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX500-10S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX500-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 500 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 SAIJ50 Adjustable Cylinder SAIJ50AX500-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×500 | 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 SAIJ50 Adjustable Cylinder SAIJ50AX500-10S Is Used
Product Changeover
Quickly dial in the 490-500 mm retract end position during format changes on a packaging line without changing out the cylinder.
Machine Setup
Fine-tune the end stop during initial commissioning to perfect the stroke length and avoid mechanical hard stops.
Variable End Stops
Adjust the travel window by up to 10 mm to accommodate varying material thicknesses or positioning offsets.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX500-10S the Right Cylinder?
Choose this 50 mm bore when an application requires 982 N of push force at 0.5 MPa, stepping up from a 40 mm bore that provides 628 N, or down from a 63 mm bore offering 1559 N. An adjustable stroke is preferred over a fixed SAI cylinder when you need a variable end-stop for product changeovers or precise machine setup. To replace an ISO 15552 cylinder, match the 50 mm bore, 500 mm stroke, 10 mm adjustment, PT port, and -S magnet.
Because the nominal stroke is 500 mm, the unsupported piston rod is susceptible to deflection; an external guide is recommended to prevent excessive side-loading. For load-holding without continuous live air, note that this cylinder's adjuster and air cushions are not locks—a pilot-operated check valve or an AirTAC SAIL locking cylinder is required instead.
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 SAIJ50 Adjustable Cylinder SAIJ50AX500-10S FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N.
The rear adjuster acts as a mechanical stop that lets you trim the effective travel back by up to 10 mm, creating a 490-500 mm usable window. It sets the end position but does not hold the load without live air pressure.
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