Airtac SAIJ50 Adjustable Cylinder SAIJ50BX150-40
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX150-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 150mm 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
- Stroke150 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 SAIJ50BX150-40
The AirTAC SAIJ50X150-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 110 to 150 mm. Delivering 982 N of push thrust at 0.5 MPa, it bridges the gap between lighter 40 mm bores and heavier 63 mm units. The extruded aluminum barrel features sensor grooves on both sides for straightforward position feedback.
This specific SKU utilizes a SUS304 stainless steel rod (option B) for superior corrosion resistance in humid or washdown settings. Fluid connections use PT tapered threads, and the unit includes variable air cushions at both ends to manage deceleration across its 30-800 mm/s speed range.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX150-40 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX150-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 150 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 SAIJ50BX150-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×150 | 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 SAIJ50BX150-40 Is Used
Changeover Adjustment
Dial in the exact end position within the 110-150 mm window during product size changeovers on a packaging line.
Machining End Stops
Fine-tune the retract stroke limit during machine setup without machining custom external stopper blocks.
Stainless Rod Actuation
Leverage the SUS304 rod for moderate-force positioning tasks in environments requiring high corrosion resistance.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX150-40 the Right Cylinder?
Selecting this 50 mm bore over a 63 mm version (which yields 1559 N at 0.5 MPa) makes sense when your payload requires moderate force without the extra mass. The 40 mm adjustment range is highly valuable during machine commissioning or product changeovers, allowing you to dial in the exact end position without swapping out the entire cylinder or fabricating external stop blocks.
Because the rear adjuster acts purely as a travel stop and the air cushions only manage deceleration, this cylinder cannot hold a load without continuous air pressure. For fail-safe load holding, consider an AirTAC SAIL or BSAI series cylinder. To match this ISO 15552 footprint exactly, ensure your mounting hardware is from the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, or 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 SAIJ50BX150-40 FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push thrust and 825 N of pull thrust. At the maximum 1.0 MPa pressure, it delivers up to 200 kgf.
The rear adjuster screw allows you to shorten the 150 mm nominal stroke by up to 40 mm, creating a usable travel window of 110 to 150 mm. This stopper only sets the end position; it does not lock the load without live air pressure.
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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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