Airtac SAIJ50 Adjustable Cylinder SAIJ50AX475-50
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX475-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 475mm 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
- Stroke475 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 SAIJ50AX475-50
The AirTAC SAIJ50X475-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 425 to 475 mm, allowing you to dial back the nominal 475 mm stroke by up to 50 mm during commissioning. Delivering 982 N of push force at 0.5 MPa, it handles mid-range automation tasks with precision.
This unit uses a SUS420J2 stainless steel rod for enhanced corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Since the rear adjuster acts only as a mechanical stop, it cannot hold a load without live air pressure; for fail-safe load holding, consider the SAIL or BSAI series.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX475-50 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX475-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 475 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 SAIJ50AX475-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×475 | 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 SAIJ50AX475-50 Is Used
Product Changeovers
Dial in the exact end-stop from 425 to 475 mm when switching between product sizes on a packaging line without physically changing the cylinder.
Machine Commissioning
Fine-tune the retract end-position during setup to clear mechanical obstructions or perfectly time the machine cycle.
Variable End Stops
Adjust the travel limit on the fly for diverter gates or indexing conveyors that handle varying package lengths.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX475-50 the Right Cylinder?
Choose this 50 mm bore when your application requires around 982 N of push force at 0.5 MPa. If you need less force, the 40 mm bore provides 628 N; if your load demands more, stepping up to the 63 mm bore yields 1559 N. The adjustable stroke is ideal for product-size changeovers on a line, saving the time of physically swapping cylinders or adding external stops.
This configuration includes a PT tapered port, SUS420J2 stainless steel rod, and no magnet. It is dimensionally interchangeable with ISO 15552 cylinders and uses the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 475 mm stroke is long, always use an external guide to prevent excessive side-loading on the rod.
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 SAIJ50AX475-50 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 the maximum 1.0 MPa pressure, it can deliver up to 200 kgf.
The rear adjuster screw lets you mechanically shorten the effective travel from 475 mm down to 425 mm. This creates a 50 mm setup window for fine-tuning the retract position without needing external stops.
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Covers non-human-caused product damage.
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