Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-30
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 270mm 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
- Stroke270 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-30
The AirTAC SAIJ200X270-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust for heavy-duty motion. It yields 15708N push and 15080N pull force at 0.5 MPa, scaling up to 21991N push at 0.7 MPa. By turning the integrated rear stopper screw, you achieve a usable travel window of 240-270 mm, allowing precise end-position tuning without swapping out the entire unit.
This 200 mm bore unit features a robust 40 mm SUS420J2 stainless steel rod and a PT G3/4 port. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible switch placement. The rear adjuster functions purely as a mechanical stop to set the retract endpoint, meaning it cannot hold a load dynamically without continuous live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-30 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 270 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 SAIJ200AX270-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×270 | 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 SAIJ200AX270-30 Is Used
Heavy Pressing Operations
Dials in the exact 240-270 mm pressing depth during machine setup, ensuring consistent force application without needing custom spacer blocks.
Product Changeover
Quickly adjusts the retract endpoint on a production line when transitioning between different sized heavy components, minimizing downtime.
Heavy-Duty Forming
Provides up to 21991N of push at 0.7 MPa for bending or forming tasks, with the adjuster acting as a hard stop to prevent overtravel.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-30 the Right Cylinder?
Select this 200 mm bore actuator when an application demands extreme force alongside variable end-stop positioning, such as pressing or heavy clamping tasks that require exact tuning during commissioning. If the full 15708N push at 0.5 MPa exceeds your requirements, stepping down to a 160 mm bore provides 10053N, whereas this model is necessary when overcoming substantial mechanical resistance. Because the 270 mm stroke surpasses 300 mm? No, at 270 mm it is under the threshold, but for any unsupported heavy loads, an external guide is still recommended to protect the 40 mm rod from side-load damage.
To match this ISO 15552 interchangeable cylinder, confirm the 270 mm nominal stroke, 30 mm adjustment range, PT G3/4 port, and the absence of a magnet (-S). The mounting hardware is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. For applications requiring the load to be held securely without live air, a plain SAIJ is insufficient; consider an AirTAC SAIL locking cylinder or an external rod lock instead.
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 SAIJ200AX270-30 FAQ
At 0.5 MPa, this 200 mm bore cylinder provides 15708N of push force and 15080N of pull force. If the operating pressure is increased to 0.7 MPa, the push force rises to 21991N.
The rear stopper screw allows you to trim the effective travel back by up to 30 mm from the nominal 270 mm stroke, creating a usable window of 240-270 mm. This stopper sets the end position but does not lock the load without live air pressure.
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