Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 275mm 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
- Stroke275 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-20S
The AirTAC SAIJ200X275-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust up to 15708N at 0.5 MPa. It features a 275mm nominal stroke that can be fine-tuned down by up to 20mm, creating a precise 255-275mm usable travel window during commissioning. This adjustability eliminates the need to swap cylinders or add external stoppers when dialing in final end positions.
Built for durability, this variant utilizes a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and includes a magnet (-S) for seamless integration with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel retains standard ISO 15552 mounting interface dimensions, while the G3/4 port and M36x2 rod thread handle the high pneumatic flow and structural loads required by 200mm bore applications.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 275 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 SAIJ200AX275-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×275 | 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 SAIJ200AX275-20S Is Used
Heavy Press Tuning
Fine-tune the 255-275mm travel window during heavy press commissioning to achieve exact bottom-dead-center positioning without swapping out the massive 200mm cylinder.
Product Changeovers
Adjust the rear stopper on the fly to accommodate different pallet sizes on a conveyor line, using the 20mm adjustment range to modify the stroke end-point quickly.
Large Assembly Jigs
Leverage the 15708N push force and SUS420J2 stainless rod to drive large assembly tooling, relying on the -S magnet to confirm end-of-stroke positions with DMSE sensors.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-20S the Right Cylinder?
Selecting this 200mm bore cylinder makes sense when your application requires extreme push force—up to 15708N at 0.5 MPa or 21991N at 0.7 MPa. If your load demands less force, stepping down to a 160mm bore provides 10053N at 0.5 MPa, which might avoid excessive air consumption. The adjustable stroke is ideal for product changeovers, allowing operators to vary the end-stop without machining new hard stops. Because the stroke is 275mm, an external guide is recommended to prevent excessive side-loading on the rod.
For an exact ISO 15552 replacement match, ensure you specify the 200mm bore, 275mm stroke, 20mm adjustment, PT tapered port threads, and the -S magnet. Remember that the rear adjuster acts only as a travel stop and the air cushions handle deceleration; neither will hold the load without live air pressure. For true load-holding without continuous air, consider an AirTAC SAIL or BSAI cylinder instead. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options.
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 SAIJ200AX275-20S FAQ
At 0.5 MPa, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. At 0.7 MPa, the push force increases to 21991N.
The rear adjuster screw allows you to shorten the 275mm nominal stroke by up to 20mm, providing a usable travel window of 255-275mm. It acts as a mechanical stop to fine-tune the retract position and does not lock the load without live air pressure.
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