Airtac SAIJ200 Adjustable Cylinder SAIJ200AX260-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX260-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 260mm 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
- Stroke260 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX260-20S
The AirTAC SAIJ200X260-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 240-260 mm, allowing you to dial back the nominal 260 mm stroke by up to 20 mm during commissioning. Equipped with a SUS420J2 stainless steel rod and a magnetic piston for CMSE or DMSE sensors, it handles heavy loads with a push force of 15708 N at 0.5 MPa.
The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. You can fine-tune the retract end-position without swapping the cylinder or adding external stops. The rear adjuster acts strictly as a travel stop and deceleration point, not a load-holding lock; for position retention without live air, consider the SAIL or BSAI series.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX260-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX260-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 260 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 SAIJ200AX260-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×260 | 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 SAIJ200AX260-20S Is Used
Heavy Press Tonnage Tuning
Dial in the exact 240-260 mm travel window during initial commissioning to set precise pressing forces on large industrial assemblies without external shims.
Product Line Changeover
Quickly adjust the retract end-stop by up to 20 mm when switching between product variants on a heavy-duty conveyor or forming line.
Variable End-Stop Forming
Use the rear stopper screw to fine-tune the stroke end for different material thicknesses in heavy-gauge metal bending and fabrication equipment.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX260-20S the Right Cylinder?
Choose this 200 mm bore when your application requires substantial thrust, delivering 15708 N of push force at 0.5 MPa. If your force requirements are lower, stepping down to a 160 mm bore yields 10053 N of push force at the same pressure, which might better suit medium-duty tasks. The adjustable stroke is ideal for machine setups requiring variable end-stops or product changeovers, providing flexibility that a fixed-stroke SAI cylinder cannot offer.
Because the 260 mm stroke exceeds 300 mm? No, but at 260 mm with a heavy 40 mm rod, you should still ensure proper external guidance to prevent excessive side-loading on the rod. This SAIJ200X260-20-S configuration includes a PT tapered port thread, a magnet for electronic DMSE or reed CMSE sensors, and supports a mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2. It is dimensionally interchangeable per ISO 15552.
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 SAIJ200AX260-20S FAQ
At an operating pressure of 0.5 MPa, this 200 mm bore cylinder provides a push (extend) force of 15708 N and a pull (retract) force of 15080 N. At 0.9 MPa, the push force reaches 28274 N.
The rear adjuster screw allows you to shorten the effective travel from the nominal 260 mm down to 240 mm, creating a 240-260 mm adjustable window. This stopper only sets the travel end and deceleration; it does not hold the load without live air pressure.
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