Airtac SAIJ50 Adjustable Cylinder SAIJ50AX210-40S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX210-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 210mm 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
- Stroke210 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 SAIJ50AX210-40S
The AirTAC SAIJ50X210-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 982N of push force at 0.5 MPa and features a 210mm nominal stroke that can be dialed back by up to 40mm, yielding a precise 170-210mm usable travel window for exact end-position tuning.
This variant includes a piston magnet for CMSE reed and DMSE electronic sensors, alongside a SUS420J2 stainless steel rod for enhanced corrosion resistance. The extruded aluminum barrel maintains standard ISO 15552 mounting dimensions while omitting FB, CA, CB, and CR brackets in favor of the Basic, FA, LB, TC, FTC, TCM1, and TCM2 set.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX210-40S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX210-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 210 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 SAIJ50AX210-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×210 | 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 SAIJ50AX210-40S Is Used
Product Changeover
Dial in the 170-210mm travel window quickly during format size changes on packaging lines without swapping out the entire actuator.
End-Stop Calibration
Fine-tune the retract position during machine setup to achieve exact positioning, using the rear screw to compensate for mechanical tolerances.
Variable End Positioning
Adjust the effective stroke on automated equipment to accommodate multiple part lengths within the 40mm adjustment range.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX210-40S the Right Cylinder?
Select this 50mm bore when an application requires 982N push thrust at 0.5 MPa but demands on-the-fly stroke trimming during commissioning; if you need less force, step down to a 40mm bore offering 628N, or move up to a 63mm bore providing 1559N. The 40mm adjustment range is perfect for product changeovers, acting as a hard stop rather than a lock, meaning it cannot hold a load without live air. For load-holding without pressure, consider an external rod lock or the SAIL series.
Because the 210mm stroke exceeds 300mm? No, at 210mm it avoids the severe side-load risks of longer strokes, but the 20mm rod thread still requires external guiding if subjected to lateral forces. When replacing an ISO 15552 cylinder, match the 50mm bore, 210mm stroke, PT tapered port, and the -S magnet requirement.
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 SAIJ50AX210-40S FAQ
At 0.5 MPa operating pressure, this 50mm bore cylinder provides 982N of push force and 825N of pull force. At 0.7 MPa, the push force increases to 1374N.
The rear adjuster acts as a mechanical stop that shortens the effective travel. For the SAIJ50X210-40-S, you can trim the 210mm nominal stroke back by up to 40mm, creating a 170-210mm usable travel window without needing external stops.
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