Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-50S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-50S 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 SAIJ200AX270-50S
The AirTAC SAIJ200X270-50-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 220-270 mm, allowing you to dial back the nominal 270 mm stroke by up to 50 mm during commissioning without adding external stops. In the 200 mm bore class, it delivers a robust 15708 N push force at 0.5 MPa and reaches a maximum of 3204 kgf at 1.0 MPa.
This variant includes a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and ships with a PT tapered port thread. The extruded aluminum barrel integrates sensor grooves on both sides, and the -S magnet option supports AirTAC CMSE reed and DMSE electronic switches for precise end-of-travel detection. It uses the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-50S |
|---|---|
| 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 SAIJ200AX270-50S
| 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 SAIJ200AX270-50S Is Used
Heavy Press Tuning
Dial in the exact end-stop for a high-force press during setup, trimming the 270 mm stroke back by up to 50 mm to accommodate different tooling heights.
Product Changeover
Quickly adjust the travel window from 270 mm down to 220 mm on a packaging line without swapping out the entire cylinder or adding external stopper blocks.
Large Assembly Jigs
Position heavy components using the 15708 N push force at 0.5 MPa, relying on the SUS420J2 stainless rod to resist corrosion in humid plant environments.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-50S the Right Cylinder?
Select this 200 mm bore cylinder when an application requires high thrust (15708 N push at 0.5 MPa) alongside flexible end-position tuning. The rear adjuster acts purely as a mechanical stop to fine-tune the 220-270 mm travel window; it is not a lock, so it will not hold the load without live air pressure. For applications requiring true position holding, consider the SAIL (air-released lock) or BSAI (clamp-lock) series instead. To replace an existing ISO 15552 cylinder, match the 200 mm bore, 270 mm stroke, 50 mm adjustment, PT port, and -S magnet.
Because the 270 mm stroke is substantial and the piston rod is 40 mm, long unsupported strokes can generate significant side loads. Always use an external guide to prevent rod damage and premature seal wear. The operating speed for this bore is 30-500 mm/s, supported by 50 mm air cushions at both ends to decelerate the heavy load.
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 SAIJ200AX270-50S FAQ
At 0.5 MPa, the push force is 15708 N and the pull force is 15080 N. At the maximum operating pressure of 1.0 MPa, it achieves a push force of 3204 kgf.
The rear adjuster screw lets you shorten the effective travel from the nominal 270 mm down to 220 mm, creating a 50 mm tuning window. It functions as a hard stop for end-position tuning and does not lock or hold the load without continuous air pressure.
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