Airtac SAIJ200 Adjustable Cylinder SAIJ200AX240-75
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX240-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 240mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke240 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX240-75
The AirTAC SAIJ200X240-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 240 mm travel to a precise 165-240 mm window during commissioning. It delivers massive thrust, pushing with 15708 N and pulling with 15080 N at 0.5 MPa, making it suitable for heavy-duty press and lift operations. The rod is manufactured from SUS420J2 stainless steel (code A) for high corrosion resistance, and the PT tapered ports ensure a tight, leak-free pneumatic connection.
Because this is a profile cylinder with an extruded aluminum barrel, it integrates sensor grooves on both sides for straightforward position feedback. The rear adjuster functions strictly as a mechanical stop to fine-tune the end position without swapping the cylinder or adding external stops; it does not hold the load without live air pressure. For applications requiring load-holding without continuous air, consider the SAIL or BSAI series.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX240-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX240-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 240 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max stroke | Up to 1500 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 (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200AX240-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×240 | 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 SAIJ200 Adjustable Cylinder SAIJ200AX240-75 Is Used
Press Tuning
Dial in the exact 165-240 mm end position for heavy pressing tasks without machining custom spacers.
Size Changeovers
Rapidly adjust the travel window up to 75 mm during product size transitions on high-force packaging lines.
Machine Setup
Fine-tune the retract end position at commissioning to perfectly align heavy tooling without swapping cylinders.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX240-75 the Right Cylinder?
Choose this 200 mm bore when you need significantly more force than the 160 mm bore, which provides 10053 N of push at 0.5 MPa. The 75 mm adjustment range is ideal for production lines running multiple product sizes, allowing you to reconfigure the end-of-stroke position rapidly during changeovers. If your machine requires holding a load in place without live air pressure, note that the SAIJ adjuster is a travel stop, not a lock, so you would need an external rod lock or a SAIL cylinder.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 240 mm nominal stroke, PT port threads, and the 75 mm adjustment requirement. This SAIJ model uses a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. For any stroke of 300 mm or more, you must use an external guide to prevent side-load damage, but at 240 mm the robust 40 mm rod and M36x2 thread handle standard loads effectively.
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 SAIJ200 Adjustable Cylinder SAIJ200AX240-75 FAQ
At 0.5 MPa it delivers 15708 N of push force and 15080 N of pull force. At the maximum operating pressure of 1.0 MPa, it achieves a maximum push of 3204 kgf.
The rear adjuster acts as a mechanical stop that lets you trim the effective stroke back from the 240 mm nominal length down to 165 mm. This allows precise end-position tuning without replacing the cylinder.
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