Airtac SAIJ50 Adjustable Cylinder SAIJ50BX175-100
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX175-100 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 SAIJ50BX175-100
The AirTAC SAIJ50X175-100 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 175 mm stroke that can be dialed back by up to 100 mm, creating a highly flexible 75-175 mm usable travel window. Delivering 982 N of push force at 0.5 MPa, it handles mid-range actuation while allowing precise end-position tuning during commissioning.
This SKU is configured with a SUS304 (B) stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE electronic switches. Because the rear adjuster acts solely as a travel stop and does not hold the load without live air, machine builders needing fail-safe holding should evaluate the SAIL or BSAI series instead.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX175-100 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX175-100 |
|---|---|
| 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 SAIJ50BX175-100
| 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 SAIJ50BX175-100 Is Used
Variable End-Stop Tuning
Dial in the exact retract distance within the 75-175 mm window during machine setup without swapping out the entire actuator.
Product Size Changeover
Adjust the stroke on the fly to accommodate different package lengths moving down a packaging line.
Commissioning Calibration
Fine-tune the final end position at machine startup to compensate for mechanical tolerances without adding external stops.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX175-100 the Right Cylinder?
Choose this 50 mm bore when an application requires more thrust than the 40 mm version (628 N push at 0.5 MPa) but is constrained by space, avoiding the bulk of a 63 mm cylinder. The 100 mm adjustment range is ideal for product-size changeovers on a packaging line, eliminating the need to physically swap cylinders or add external mechanical stops.
For an exact ISO 15552 replacement match, specify a 50 mm bore, 175 mm stroke, 100 mm adjustment, PT port thread, and the SUS304 (B) rod material. Note that this model omits the -S magnet; position sensing requires adding that option to drive CMSE or DMSE switches. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and 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 SAIJ50BX175-100 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.
A rear adjusting screw acts as a mechanical stopper, allowing you to shorten the effective travel from the 175 mm nominal stroke down to as little as 75 mm. This stopper only sets the travel end and does not lock or hold the load without continuous air pressure.
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