Airtac SAIJ50 Adjustable Cylinder SAIJ50AX260-30
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX260-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 260mm 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
- Stroke260 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
About the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX260-30
The AirTAC SAIJ50X260-30 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 230-260 mm, allowing you to dial back the nominal 260 mm stroke by up to 30 mm during commissioning. Delivering 982N of push force at 0.5 MPa, it fits medium-duty applications perfectly.
This variant uses an SUS420J2 stainless steel rod for enhanced corrosion resistance over standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches. The rear adjuster acts purely as a mechanical stop to set the retract end-position and does not lock the load without live air pressure.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX260-30 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX260-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 260 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 SAIJ50AX260-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×260 | 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 SAIJ50AX260-30 Is Used
Machine Setup Tuning
Fine-tune the 230-260 mm travel window during initial commissioning to perfectly time the retract position without machining custom spacers.
Product Changeover
Quickly adjust the end-stop by up to 30 mm on a packaging line when switching to a different product size, minimizing downtime.
Variable End Stops
Provide a precise mechanical stop for indexing or positioning tasks where the exact retract distance needs occasional field adjustment.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX260-30 the Right Cylinder?
Choose this 50 mm bore when 628N from a 40 mm cylinder is insufficient, or step up to a 63 mm bore if you need 1559N of thrust. The adjustable stroke is ideal for product changeovers, letting you fine-tune the end stop without swapping the cylinder or adding external stops. If the machine requires true fail-safe load holding, a plain SAIJ will not suffice; consider the SAIL or BSAI series instead.
For ISO 15552 replacement, match the 50 mm bore, 260 mm stroke, 30 mm adjuster, PT tapered port threads, and the SUS420J2 (A) rod material. Since the 260 mm stroke exceeds 300 mm is not met, side-load is moderate, but the 20 mm rod and M16x1.5 thread handle standard stresses well. SAIJ supports a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ50AX260-30 FAQ
At a 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982N of push force and 825N 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 260 mm nominal stroke down to 230 mm. It acts as a mechanical stop for end-position tuning and is not a lock; it cannot hold the load without continuous air pressure.
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