Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 325mm 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
- Stroke325 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-40
The AirTAC SAIJ200X325-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 285-325 mm usable travel window, allowing you to dial back the 325 mm nominal stroke by up to 40 mm during commissioning. In the 200 mm bore class, it generates 15708 N of thrust at 0.5 MPa and safely operates at speeds of 30-500 mm/s.
This heavy-duty actuator features a PT tapered port and a SUS420J2 stainless steel rod for superior side-load resistance. The extruded aluminum barrel includes dual sensor grooves, though this non-magnetic variant does not support CMSE or DMSE switches. The rear adjuster acts purely as a mechanical stop for end-position tuning, not a load-holding lock.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 325 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 SAIJ200AX325-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×325 | 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 SAIJ200AX325-40 Is Used
Heavy Press Changeover
Dial in the 285-325 mm travel window on the fly to accommodate different material thicknesses during production line changeovers.
Large Fixture Positioning
Fine-tune the end stop during machine setup to precisely set the clamping position without machining custom spacer blocks.
Heavy-Duty Forming Stop
Use the rear mechanical stop to establish a repeatable retraction point for large-scale metal forming or bending equipment.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-40 the Right Cylinder?
Select this 200 mm bore actuator when your equipment requires substantial thrust, stepping up from a 160 mm bore that yields 10053 N at 0.5 MPa. The 40 mm adjustment range is ideal for product changeovers, letting you set variable end stops without adding external shims or replacing the cylinder. For load-holding without live air pressure, choose the SAIL or BSAI series instead, as the SAIJ rear stop cannot hold a load.
With a 325 mm stroke, the 40 mm diameter rod and M36x2 thread provide rigidity, but an external guide rail is still recommended to prevent rod binding under heavy side loads. This SAIJ model is dimensionally interchangeable with ISO 15552 cylinders and supports a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ200AX325-40 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 0.9 MPa, the push force increases to 28274 N.
The rear adjusting screw acts as a mechanical stop that lets you shorten the 325 mm nominal stroke by up to 40 mm, providing a usable travel window of 285 to 325 mm. It only sets the end position and does not lock the load without live air.
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