Airtac SAIJ200 Adjustable Cylinder SAIJ200AX200-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX200-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 200mm 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
- Stroke200 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX200-20S
The AirTAC SAIJ200X200-20-S is a double-acting ISO 15552 profile cylinder engineered for high-force tasks, delivering a 21991N push force at 0.7 MPa. It features a robust 40mm piston rod machined from SUS420J2 stainless steel (code A) and PT tapered port threads. The defining characteristic of this SAIJ variant is the rear mechanical stopper, which permits you to fine-tune the effective travel down from the 200mm nominal stroke, creating a precise 180-200mm usable adjustment window.
This on-the-fly stroke tuning is ideal for product changeovers, eliminating the need to physically swap the cylinder or bolt on external stops. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet (-S) is fully compatible with AirTAC CMSE reed and DMSE electronic sensors. Remember that the rear adjuster acts purely as a travel stop and does not lock the load without live air pressure; for true load-holding, explore the SAIL or BSAI series.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX200-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX200-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 200 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 SAIJ200AX200-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×200 | 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 SAIJ200AX200-20S Is Used
Heavy Press Tuning
Dial in the exact 180-200mm travel window during heavy press commissioning to accommodate varying material thicknesses without replacing the cylinder.
Product Changeovers
Rapidly adjust the retract end-position on packaging lines during product size transitions, using the rear stopper instead of external mechanical stops.
Automated Assembly End-Stops
Set precise end-of-stroke limits for high-force assembly presses, leveraging the 21991N push force at 0.7 MPa for secure component seating.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX200-20S the Right Cylinder?
Select this 200mm bore when your application demands extreme thrust, stepping up significantly from the 125mm bore which provides 8590N push force at 0.5 MPa. Choose the SAIJ adjustable-stroke design over a fixed SAI model when your machine setup requires variable end-stops or commissioning fine-tuning to dial in the exact 180-200mm travel window. To replace an ISO 15552 cylinder, match the 200mm bore, 200mm stroke, 20mm adjustment, PT ports, and the -S magnet requirement.
Mounting options for this series are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets. Because this SKU features a 200mm stroke, the 40mm rod diameter provides substantial rigidity, yet you must still use an external guide to prevent excessive side-loading on the unsupported rod.
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 SAIJ200AX200-20S FAQ
At a 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 acts as a mechanical stop that lets you shorten the 200mm nominal stroke by up to 20mm, providing a usable travel window of 180-200mm. This stopper only sets the end position and decelerates the load; it does not hold the load without live air pressure.
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