Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 175mm 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
- Stroke175 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-20
The AirTAC SAIJ200X175-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 175 mm stroke back by up to 20 mm. This yields a usable travel window of 155 to 175 mm, letting you dial in the exact end position at commissioning without adding external stops. As an extruded aluminum profile cylinder, it avoids tie-rod construction while maintaining standard ISO 15552 mounting interchangeability.
Delivering massive thrust, this 200 mm bore unit pushes with 15708 N and pulls with 15080 N at 0.5 MPa. It features a robust 40 mm carbon steel rod with an M36x2 thread, but because the rod diameter is relatively small compared to the massive bore, long unsupported strokes require an external guide to prevent side-load damage. The standard PT tapered ports (G3/4) and SUS420J2 stainless steel rod (code A) enhance durability, while the rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 175 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 SAIJ200AX175-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×175 | 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 SAIJ200AX175-20 Is Used
Heavy Press Changeover
Dial in the 155-175 mm travel window during product size transitions to set precise pressing depths without physically swapping the cylinder.
Large Assembly End-Stops
Leverage the 15708 N push force at 0.5 MPa to seat heavy components, using the rear screw to fine-tune the final resting position.
Actuator Calibration
Trim up to 20 mm of stroke during machine commissioning to perfectly align large-scale tooling, preventing impact shock on the 40 mm rod.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-20 the Right Cylinder?
Select this 200 mm bore model when your application requires extreme force, as stepping down to a 160 mm bore drops the 0.5 MPa push thrust to 10053 N. Choose the SAIJ adjustable-stroke variant over a fixed SAI cylinder when your machine setup involves frequent product changeovers that need variable end-stops. To match this ISO 15552 replacement exactly, verify the 200 mm bore, 175 mm stroke, 20 mm adjustment range, G3/4 PT ports, and the required mounting style from the reduced SAIJ set: Basic, FA, LB, TC, FTC, TCM1, or TCM2 (FB, CA, CB, and CR are omitted). Because this unit lacks a magnet, it cannot host CMSE or DMSE sensors without modification.
If your process requires holding a load in place without continuous compressed air, note that this plain SAIJ cylinder cannot do so; the rear adjuster is a stop, not a lock. For fail-safe load holding, consider an AirTAC SAIL (pneumatic lock) or BSAI (clamp-lock) cylinder instead.
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 SAIJ200AX175-20 FAQ
The rear adjuster screw lets you shorten the 175 mm nominal stroke by up to 20 mm, creating a 155 to 175 mm usable travel window. It acts as a mechanical stop to fine-tune the retract end position and does not lock the load without live air.
At 0.5 MPa operating pressure, it provides 15708 N of push force and 15080 N of pull force. The maximum thrust is 3204 kgf at 1.0 MPa.
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