Airtac SAIJ50 Adjustable Cylinder SAIJ50BX75-30S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX75-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 75mm 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
- Stroke75 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 SAIJ50BX75-30S
The AirTAC SAIJ50X75-30-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 45-75 mm from its 75 mm nominal stroke, allowing precise end-position tuning at commissioning without swapping the barrel or adding external stops. It delivers a robust 982 N push force at 0.5 MPa, making it highly suitable for mid-range industrial actuation.
This variant is equipped with a SUS304 stainless steel rod for superior corrosion resistance and ships with a piston magnet (-S) for direct compatibility with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides, and fluid is supplied via PT tapered ports. The rear adjuster acts strictly as a travel stop to set deceleration endpoints; it does not hold the load without live air pressure.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX75-30S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX75-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 75 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 SAIJ50BX75-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×75 | 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 SAIJ50BX75-30S Is Used
Machine Changeover
Dial in the 45-75 mm travel window during product size transitions on a packaging line without changing out the cylinder.
Variable End Stops
Fine-tune the retract position precisely during commissioning to perfect a pressing or clamping operation.
Corrosion-Resistant Actuation
Leverage the SUS304 rod and 982 N force for reliable mid-range automation in washdown or mildly corrosive settings.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX75-30S the Right Cylinder?
Choose this 50 mm bore when your application requires the 982 N push force at 0.5 MPa, stepping up from a 40 mm bore that provides 628 N, or down from a 63 mm bore delivering 1559 N. The 30 mm adjustment range is ideal for product-size changeovers on a line, letting you dial in the exact 45-75 mm stroke mechanically rather than replacing a fixed-stroke SAI cylinder. Because the adjuster is a stop and not a lock, applications requiring true load-holding without live air pressure should utilize an external rod lock or pilot-operated check valve. To match this ISO 15552 interchangeable cylinder, specify: 50 mm bore, 75 mm stroke, 30 mm adjustment, PT port, and a -S magnet.
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 SAIJ50BX75-30S 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 the maximum 1.0 MPa pressure, it can deliver up to 200 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the 75 mm nominal stroke down to 45 mm. This creates a 45-75 mm usable window for fine-tuning end positions at commissioning, but it functions only as a stop and does not lock the load without live air.
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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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