Airtac SAIJ50 Adjustable Cylinder SAIJ50BX175-75
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX175-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 175mm 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
- Stroke175 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 SAIJ50BX175-75
The AirTAC SAIJ50X175-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits a usable travel window of 100-175 mm from its 175 mm nominal stroke. Delivering a 0.5 MPa push force of 982 N and a pull force of 825 N, it bridges the gap between 40 mm and 63 mm bores. The extruded aluminum barrel includes sensor grooves on both sides for straightforward switch mounting.
This specific SKU is configured with a SUS304 stainless steel rod (option B) for superior corrosion resistance and a PT tapered port thread. The rear adjustment screw acts purely as a mechanical stop to tune the end position during commissioning; it does not lock the load without live air pressure.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX175-75 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX175-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 175 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 SAIJ50BX175-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×175 | 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 SAIJ50BX175-75 Is Used
Machine Changeover
Dial in the 100-175 mm travel window during product size changes without removing the cylinder or adding external mechanical stops.
Variable End-Stop Diverter
Fine-tune the retract position on the fly to route different package sizes accurately on a sorting line.
Clamping Force Setup
Set the exact clamping reach during commissioning, using the 982 N push force to secure varying part geometries.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX175-75 the Right Cylinder?
Choose this 50 mm bore when an application requires roughly 982 N of push force at 0.5 MPa, stepping up from the 628 N offered by a 40 mm bore, without needing the larger 1559 N capacity of a 63 mm version. The 75 mm adjustment range is ideal for product changeovers on a packaging line, allowing you to shift the end stop dynamically rather than physically swapping a fixed-stroke SAI cylinder.
For dimensionally interchangeable ISO 15552 replacement, match the 50 mm bore, 175 mm stroke, PT port thread, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting options. Because the nominal stroke is under 300 mm, side-load stress is moderate, but the 20 mm rod diameter still requires external guidance for heavy lateral loads. Note that for any load-holding requirements without live air, you must specify a SAIL or BSAI series cylinder instead of relying on this adjuster.
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 SAIJ50BX175-75 FAQ
At a 0.5 MPa operating pressure, this 50 mm bore cylinder provides a push force of 982 N and a pull force of 825 N. At 0.7 MPa, the push force increases to 1374 N.
The rear adjuster screw lets you shorten the effective stroke by up to 75 mm, creating a usable travel window of 100-175 mm. It functions as a mechanical stop for end-position tuning and does not hold the load without live air pressure.
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