Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 280mm 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
- Stroke280 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-40S
The AirTAC SAIJ200X280-40-S is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty tasks. It integrates a rear stroke adjuster that permits you to trim the effective travel back by up to 40 mm, establishing a usable 240-280 mm window for precise end-position tuning. Operating at 0.5 MPa, it delivers 15708 N of push thrust and 15080 N of pull thrust, making it ideal for moving substantial masses. The extruded aluminum barrel features sensor grooves on both sides to accommodate CMSE reed and DMSE electronic switches.
This variant is configured with a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance compared to standard carbon steel. Pneumatic connections use a PT tapered G3/4 port, and the unit includes adjustable air cushions at both ends to mitigate impact shock. The rear adjuster acts solely as a travel stop to set the retract position; it does not lock the load or hold position without continuous air pressure. For load-holding requirements without live air, explore the SAIL or BSAI series.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 280 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 SAIJ200AX280-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×280 | 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 SAIJ200AX280-40S Is Used
Heavy Press Tuning
Dial in the exact 240-280 mm retract position during machine commissioning to apply precise forming forces on large metal components without adding external stops.
Pallet Changeover
Quickly adapt the end-stop distance on a heavy-duty conveyor line to accommodate different pallet sizes by adjusting the rear screw rather than replacing the cylinder.
Automated Assembly
Handle massive structural frames on an assembly line, using the adjustable end-position to compensate for material thickness variations across production batches.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-40S the Right Cylinder?
Selecting the SAIJ200X280-40-S is appropriate when your application demands up to 15708 N of push force at 0.5 MPa (or 21991 N at 0.7 MPa) and a nominal 280 mm stroke that requires fine-tuning within a 240-280 mm range. If your force requirements are lower, stepping down to a 160 mm bore yields 10053 N of push force at 0.5 MPa, which may offer a more compact and efficient solution. Conversely, if you need higher forces, you would exceed the 200 mm bore size, which is the largest in this standard ISO 15552 range.
Because the 280 mm stroke exceeds the 300 mm threshold, the M36x2 threaded rod and large piston are subject to significant side loads if the mass is unsupported; an external guide mechanism is mandatory to prevent premature seal wear. The adjustable stroke is chosen over a fixed SAI cylinder when you need variable end-stops for product changeovers without physically swapping the cylinder. When ordering a replacement, ensure you match the 200 mm bore, 280 mm stroke, 40 mm adjustment range, PT port thread, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting interface, and the -S magnet option.
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 SAIJ200AX280-40S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At 0.7 MPa, the push force increases to 21991 N.
The rear adjuster screw acts as a mechanical stop that allows you to shorten the nominal 280 mm stroke by up to 40 mm, providing a usable travel window of 240-280 mm. It sets the end position but does not lock the load without live air pressure.
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