Airtac SAIJ200 Adjustable Cylinder SAIJ200AX850-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX850-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 850mm 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
- Stroke850 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX850-40S
The AirTAC SAIJ200X850-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits an 810-850mm usable travel window. Delivering a massive 15708N push force at 0.5 MPa, it handles heavy-duty automation with a 40mm stroke reduction capacity. The extruded aluminum barrel includes dual sensor grooves for position detection.
Equipped with a SUS420J2 stainless steel rod (option A) and PT tapered ports, this model resists corrosion while providing secure pneumatic connections. The adjustable stopper allows fine end-position tuning during commissioning without adding external stops. It supports AirTAC CMSE reed and DMSE electronic sensors via the integrated magnet.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX850-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX850-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 850 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 SAIJ200AX850-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×850 | 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 SAIJ200AX850-40S Is Used
Heavy Press Tuning
Dial in the exact 810-850mm travel distance during heavy press commissioning to accommodate material thickness variations without swapping cylinders.
Product Changeover Stops
Adjust the retract end-position on packaging conveyors to handle different product sizes quickly, using the rear stopper instead of repositioning physical fixtures.
Large Assembly Jigs
Set precise end-of-stroke limits for large-scale assembly jigs where a 40mm travel correction prevents overtravel damage during machine setup.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX850-40S the Right Cylinder?
Select this 200mm bore cylinder when an application requires up to 15708N of push force alongside variable end-stop positioning. If the 850mm nominal stroke is excessive, stepping down to a 160mm bore yields 10053N push force at 0.5 MPa. Because the 850mm stroke is long, an external guide is recommended to manage side loads on the 40mm rod. The rear adjuster acts only as a travel stop, not a lock; for load-holding without live air pressure, consider the SAIL or BSAI series. ISO 15552 replacement requires matching the 200mm bore, 850mm stroke, 40mm adjustment, PT port, and Basic, FA, LB, TC, FTC, TCM1, or TCM2 mountings.
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 SAIJ200AX850-40S FAQ
The rear adjuster screw shortens the effective travel from the nominal 850mm down to a minimum of 810mm, providing a 40mm tuning window. This stopper sets the end position but does not lock the load without live air pressure.
At 0.5 MPa, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. At the maximum operating pressure of 1.0 MPa, it achieves up to 3204 kgf.
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