Airtac SAIJ50 Adjustable Cylinder SAIJ50AX950-75S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX950-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 950mm 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
- Stroke950 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 SAIJ50AX950-75S
The AirTAC SAIJ50X950-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 982N of push force at 0.5 MPa and utilizes a PT G1/4 port. The built-in adjustment screw allows you to trim the effective travel back by up to 75 mm, creating an 875 to 950 mm usable stroke window for precise end-position tuning during commissioning.
This unit includes a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and is equipped with a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic solid-state sensors. The extruded aluminum barrel features sensor grooves on both sides, and the mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets, omitting FB, CA, CB, and CR options.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX950-75S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX950-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 950 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 SAIJ50AX950-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×950 | 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 SAIJ50AX950-75S Is Used
Variable End-Stop Tuning
Dial in the exact retract position within the 875-950 mm window during machine commissioning without installing external mechanical stops.
Product Changeover
Quickly adapt a production line to different product sizes by adjusting the rear stopper screw up to 75 mm to meet new format requirements.
Long-Stroke Assembly
Utilize the 950 mm travel for extended reach operations while relying on the adjustable end-position to guarantee precise final placement.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX950-75S the Right Cylinder?
Choose this 50 mm bore when a 40 mm bore (628N push at 0.5 MPa) is too weak, but a 63 mm bore (1559N) is excessive. The adjustable stroke is ideal for machine setups requiring variable end-stops or product-size changeovers without swapping cylinders or adding external stops. For a fixed travel length without the adjustment screw, select the standard SAI cylinder.
When matching an ISO 15552 replacement, verify the 950 mm stroke, 75 mm adjustment range, PT G1/4 port, and the -S magnet. Because the nominal stroke is 950 mm, an external guide is recommended to prevent side-loading on the 20 mm rod. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for dead-air load holding, consider the SAIL or BSAI series.
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 SAIJ50AX950-75S FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982N of push force and 825N of pull force. At 0.7 MPa, the push force increases to 1374N.
The rear adjuster screw allows you to shorten the nominal 950 mm stroke by up to 75 mm, providing an effective travel range of 875 to 950 mm. It acts as a mechanical stop to fine-tune the end position and does not function as a load lock.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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