Airtac SAIJ50 Adjustable Cylinder SAIJ50X130-50
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50X130-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 130mm 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
- Stroke130 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 SAIJ50X130-50
The AirTAC SAIJ50X130-50 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 130 mm stroke that can be dialed back by up to 50 mm, yielding a usable travel window between 80 mm and 130 mm. This allows precise end-position tuning at commissioning without swapping the cylinder or adding external stops. Delivering 982 N of push force at 0.5 MPa, it bridges the gap between smaller 40 mm bores and larger 63 mm units.
The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement. This model uses a standard carbon steel piston rod and PT tapered port threads. The rear adjuster acts purely as a mechanical stop to set the travel end and does not hold the load without live air pressure. For load-holding requirements without continuous air, consider the SAIL or BSAI variants.
Airtac SAIJ50 Adjustable Cylinder SAIJ50X130-50 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50X130-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 130 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 SAIJ50X130-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×130 | 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 SAIJ50X130-50 Is Used
Product Changeovers
Quickly adjust the 80-130 mm travel window to accommodate different product lengths on a packaging line without changing cylinder hardware.
End-Position Tuning
Fine-tune the retract stroke during machine commissioning to achieve exact seating forces without machining external spacers.
Variable Stops
Act as an adjustable diverter on a conveyor system where the stopping position must be altered based on upstream process requirements.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50X130-50 the Right Cylinder?
Choose this 50 mm bore when an application requires moderate thrust, such as the 982 N push force at 0.5 MPa, but does not warrant the larger 1559 N capacity of a 63 mm cylinder. The 50 mm adjustment range is particularly useful on machines handling frequent product-size changeovers, allowing operators to redefine the retract end-stop on the fly rather than machining new hard stops.
When specifying a replacement, ensure the ISO 15552 dimensions match the bore, stroke, and 50 mm adjustment code. Confirm the PT port thread, the required mounting style from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2), and whether a magnet is needed for CMSE or DMSE sensors. Because the stroke is 130 mm, side-load risks are minimal, but external guiding is still recommended for heavy off-center loads.
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 SAIJ50X130-50 FAQ
At 0.5 MPa operating pressure, 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 screw acts as a mechanical stop, allowing you to shorten the effective stroke from the nominal 130 mm down to 80 mm. It sets the travel end but does not lock the load without live air pressure.
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