Airtac SAIJ50 Adjustable Cylinder SAIJ50AX280-10
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX280-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 280mm 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
- Stroke280 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 SAIJ50AX280-10
The AirTAC SAIJ50X280-10 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 270-280 mm usable travel window, allowing you to dial back the nominal 280 mm stroke by up to 10 mm. This fine-tuning capability is ideal for setting precise end positions during commissioning without swapping the cylinder or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
Delivering 982 N of push force and 825 N of pull force at 0.5 MPa, this 50 mm bore actuator handles moderate loads effectively. It features a SUS420J2 stainless steel rod for enhanced durability against moisture and wear. The adjustable stopper acts purely as a travel end-deceleration device and does not hold the load without live air pressure. For load-holding requirements without continuous air supply, consider the SAIL or BSAI series instead.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX280-10 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX280-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 280 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 SAIJ50AX280-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×280 | 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 SAIJ50AX280-10 Is Used
Machine Changeover
Dial in the exact end position within the 270-280 mm window during product size changes on a packaging line without installing external physical stops.
End-Position Tuning
Fine-tune the retract stroke at commissioning to absorb mechanical tolerances and achieve precise seating for machining fixtures.
Adjustable Diverting
Set the exact travel distance for a sorting gate on a conveyor to accommodate varying package dimensions on the fly.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX280-10 the Right Cylinder?
Choose this SAIJ50X280-10 variant when your application requires exact end-position tuning during machine setup or product changeover. If your process demands less force, stepping down to a 40 mm bore yields 528 N of pull force at 0.5 MPa. Conversely, scaling up to a 63 mm bore provides 1402 N of pull force for heavier payloads. Since the 280 mm stroke exceeds 300 mm is not met here, standard mounting guidance applies, but always ensure adequate guidance for long unsupported loads.
This cylinder uses a PT tapered port thread and supports the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. It is dimensionally interchangeable per ISO 15552. Without the -S magnet option specified, it will not support AirTAC CMSE or DMSE position sensors.
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 SAIJ50AX280-10 FAQ
At a 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 200 kgf.
The rear adjuster screw lets you shorten the effective travel from the nominal 280 mm down to 270 mm, creating a 270-280 mm adjustable window. This stopper only sets the travel end and decelerates the piston; it does not lock or hold the load without live air pressure.
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