Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-75
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-75 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 SAIJ200AX280-75
The AirTAC SAIJ200X280-75 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications requiring precise end-position tuning. Its rear mechanical adjuster allows you to trim the effective travel back by up to 75 mm, creating a usable stroke window of 205-280 mm. This eliminates the need to swap cylinders or bolt on external stops during product changeovers. Delivering immense thrust, it provides 21991 N of push force and 15080 N of pull force at 0.7 MPa.
This model features an SUS420J2 stainless steel rod for superior corrosion resistance and a robust M36x2 rod thread. As an extruded aluminum profile cylinder, it includes sensor grooves on both sides. However, since no magnet is specified, position sensing via CMSE reed or DMSE electronic switches is not enabled out of the box. The rear adjuster acts strictly as a travel stop to set deceleration, not as a lock to hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-75 |
|---|---|
| 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 SAIJ200AX280-75
| 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 SAIJ200AX280-75 Is Used
Heavy Press Tuning
Dial in the exact 205-280 mm end-stop position for high-tonnage pressing operations without changing the cylinder or adding external mechanical stops.
Large Product Changeover
Quickly adjust the stroke length on packaging or material handling lines to accommodate varying large product sizes during line changeovers.
Automated Assembly Setup
Fine-tune the retract position during machine commissioning to perfectly align heavy tooling, preventing impact damage and ensuring precise cycles.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-75 the Right Cylinder?
Selecting this 200 mm bore cylinder is appropriate when your application demands maximum thrust, such as 21991 N push force at 0.7 MPa, and requires on-the-fly stroke adjustments within a 205-280 mm window. If your force requirements are lower, stepping down to a 160 mm bore yields 14074 N push force at 0.7 MPa, which may reduce air consumption. Conversely, if you need to hold a load securely without continuous live air pressure, a standard SAIJ is insufficient; you should evaluate the SAIL pneumatic lock or BSAI clamp-lock series instead.
For an exact ISO 15552 dimensional replacement, match the 200 mm bore, 280 mm stroke, 75 mm adjustment range, PT tapered port thread, and your required mounting style. SAIJ supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets. Because the 280 mm stroke is substantial, ensure external guiding is used to prevent excessive side-loading on the M36x2 rod thread, and note the operational speed range is 30-500 mm/s.
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 SAIJ200AX280-75 FAQ
At an operating pressure of 0.7 MPa, this 200 mm bore cylinder generates a push force of 21991 N and a pull force of 15080 N. At the maximum rated pressure of 1.0 MPa, it achieves a maximum push force of 15708 N.
The rear adjusting screw allows you to shorten the nominal 280 mm stroke by up to 75 mm, providing an adjustable travel window of 205 to 280 mm. This stopper sets the travel end and deceleration point but does not lock or hold the load without live air pressure.
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