Airtac SAIJ200 Adjustable Cylinder SAIJ200AX900-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX900-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 900mm 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
- Stroke900 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX900-40
The AirTAC SAIJ200X900-40 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty tasks, delivering a robust 21991N push force at 0.7 MPa. It features a rear-mounted stroke adjuster that creates an 860-900mm usable travel window, allowing you to fine-tune the retract position without swapping hardware. The extruded aluminum barrel integrates sensor grooves on both sides, ready for CMSE reed and DMSE electronic switches if a magnet is specified later.
This specific SKU is configured with a SUS420J2 stainless steel rod (option A) for superior corrosion resistance and a PT tapered port thread. Because the 900mm stroke is substantial, the 40mm diameter rod and M36x2 thread provide high structural rigidity, yet an external guide remains essential to prevent side-loading damage over such a long unsupported distance.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX900-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX900-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 900 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 SAIJ200AX900-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×900 | 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 SAIJ200AX900-40 Is Used
Heavy Press Tuning
Dial in the exact 860-900mm end-stop for large metal forming or heavy press operations without adding external physical stops.
Line Changeover
Adjust the retract position on the fly during automated conveyor line product-size changeovers to minimize downtime.
Long-Stroke Clamping
Secure oversized workpieces with up to 21991N of force while using the rear screw to set the precise clamping depth.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX900-40 the Right Cylinder?
Selecting the SAIJ200X900-40 is ideal when an application demands extreme thrust—up to 15708N at 0.5 MPa—and precise end-position tuning during commissioning or product changeover. If you need less force, stepping down to a 160mm bore yields 10053N at 0.5 MPa, but this 200mm bore is required for the heaviest loads. The 40mm rear adjustment screw acts purely as a travel stop; it does not lock the load. For position holding without live air pressure, consider the SAIL or BSAI series instead.
To replace an ISO 15552 cylinder, match the 200mm bore, 900mm stroke, 40mm adjustment, PT G3/4 port, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2—omitting FB, CA, CB, CR). Note that this model lacks a standard magnet, so it is not sensor-ready out of the box.
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 SAIJ200AX900-40 FAQ
At 0.7 MPa operating pressure, this 200mm bore cylinder provides a push force of 21991N and a pull force of 15080N. It can deliver a maximum push force of 28274N at 0.9 MPa.
The rear adjuster screw allows you to shorten the effective 900mm stroke by up to 40mm, creating a usable travel window of 860-900mm. This stopper fine-tunes the end position but does not hold the load without live air pressure.
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