Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-10S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 250mm 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
- Stroke250 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-10S
The AirTAC SAIJ200X250-10-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications, delivering a substantial push force of 15708 N at 0.5 MPa. It features a 250 mm nominal stroke paired with a rear adjusting screw that allows you to trim the effective travel back by up to 10 mm. This creates a precise 240-250 mm usable window, enabling fine end-position tuning at commissioning without swapping out the cylinder or adding bulky external stops.
Equipped with a SUS420J2 stainless steel rod (code A) and a -S magnet, this model is ready for CMSE reed and DMSE electronic solid-state sensors housed in the dual-side extruded aluminum barrel grooves. The PT tapered porting is G3/4, and the robust M36x2 rod thread handles high side loads, though long unsupported strokes still require an external guide. The rear adjuster acts strictly as a travel stop for deceleration, not a lock, meaning it will not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-10S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 250 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 SAIJ200AX250-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×250 | 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 SAIJ200AX250-10S Is Used
Heavy Press Tuning
Fine-tune the exact bottoming position of a large forming press within the 240-250 mm window during initial commissioning without machining new spacers.
Product Changeover
Quickly adjust the retract end-stop by up to 10 mm on an automated assembly line when switching between slightly different heavy product dimensions.
Heavy Load Positioning
Move substantial payloads using the 15708 N push force at 0.5 MPa while relying on the rear stopper to set the precise resting coordinates.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-10S the Right Cylinder?
Selecting this 200 mm bore cylinder makes sense when your application requires the immense thrust of a large piston—up to 21991 N push at 0.7 MPa—and the flexibility to dial in the exact end-of-stroke position during machine setup or product changeover. If your process demands less force, stepping down to a 160 mm bore drops the 0.5 MPa push force to 10053 N, which might be insufficient for moving heavy molds or press platens. Conversely, if you do not need variable end-stops, a fixed-stroke SAI cylinder offers the same footprint without the adjustment hardware.
When matching this as an ISO 15552 replacement, verify the 250 mm stroke, 10 mm adjustment range, G3/4 PT ports, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR options. Because the stroke is 250 mm, ensure adequate external guiding to prevent excessive side-loading on the large M36x2 rod thread. For applications requiring true load-holding without live air, consider an AirTAC SAIL or BSAI 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 SAIJ200AX250-10S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides a push force of 15708 N and a pull force of 15080 N. At 0.7 MPa, the push force increases to 21991 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 250 mm nominal stroke by up to 10 mm, providing a usable travel window of 240-250 mm. It only sets the travel end and does not lock or hold the load without continuous air pressure.
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