Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-20S 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 SAIJ200AX270-20S
The AirTAC SAIJ200X270-20-S is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty tasks requiring exact end-position tuning. Equipped with a rear adjusting screw, it allows you to trim the effective stroke by up to 20 mm, creating a precise 250-270 mm usable travel window without swapping out the unit. It delivers immense thrust, generating 15708 N of push force at 0.5 MPa, making it ideal for high-impact operations.
This variant features a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and includes a magnet (-S) for seamless integration with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides, and the G3/4 PT ports ensure high airflow for its 30-500 mm/s operating speed range.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-20S |
|---|---|
| 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 SAIJ200AX270-20S
| 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 SAIJ200AX270-20S Is Used
Heavy Press Tuning
Dial in the exact 250-270 mm end-stop during machine commissioning to accommodate varying material thicknesses in high-force pressing operations.
Product Changeover
Quickly adjust the retract position by up to 20 mm on automated lines handling different product sizes without adding external mechanical stops.
Large Assembly Jigs
Leverage the 15708 N push force and SUS420J2 rod to reliably position heavy structural components within harsh manufacturing environments.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-20S the Right Cylinder?
Selecting this 200 mm bore cylinder is appropriate when your application demands up to 15708 N push force at 0.5 MPa; stepping down to a 160 mm bore would reduce that output to 10053 N. The adjustable stroke is chosen over a fixed SAI model when you need to fine-tune the retract end-position during commissioning or product changeovers. To match this ISO 15552 footprint for a direct replacement, specify the 200 mm bore, 270 mm stroke, -20 adjustment, PT G3/4 port, and the -S magnet.
Because the 270 mm stroke is substantial, the 40 mm rod diameter and M36x2 thread provide robust support, but an external guide is still recommended to prevent excessive side-loading on long unsupported travels. Remember that the rear adjuster functions strictly as a travel stop, not a lock; the cylinder cannot hold a load without live air, so consider an AirTAC SAIL or BSAI model if true load-holding is required.
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 SAIJ200AX270-20S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. It can achieve a maximum push force of 28274 N at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that allows you to shorten the nominal 270 mm stroke by up to 20 mm, providing a usable travel window of 250-270 mm for fine-tuning the end position.
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