Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-100S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-100S 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 SAIJ200AX250-100S
The AirTAC SAIJ200X250-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers massive thrust, pushing 15708N and pulling 15080N at 0.5 MPa, making it suitable for heavy-duty operations. By turning the rear stopper screw, you can trim the effective travel back by up to 100 mm, creating a precise 150-250 mm usable stroke window without swapping out the hardware.
This unit features a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and includes a magnet (-S) for direct compatibility with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides, and fluid is supplied via a PT G3/4 tapered port. It supports a variable air cushion at both ends to decelerate large loads smoothly.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-100S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-100S |
|---|---|
| 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 SAIJ200AX250-100S
| 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 SAIJ200AX250-100S Is Used
Heavy Press Tuning
Fine-tune the pressing depth of heavy components during initial commissioning by adjusting the rear stopper within the 150-250 mm travel window.
Product Changeovers
Adapt a high-force conveyor diverter on the fly for different pallet sizes without physically replacing the 200 mm bore actuator.
Variable End Stops
Establish precise retract end positions for heavy machinery indexing, relying on the 100 mm adjustment range to perfect the motion profile.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-100S the Right Cylinder?
Selecting this 200 mm bore cylinder is appropriate when your application requires maximum pneumatic force, such as pressing or heavy lifting, where a 160 mm bore (providing 10053N push at 0.5 MPa) would be insufficient. The adjustable stroke is highly beneficial during machine setup or product changeovers, allowing operators to dial in the exact end-of-travel position from 150 to 250 mm on the fly, rather than machining external stops or ordering a fixed-stroke SAI cylinder.
Because the nominal stroke is 250 mm, an external guide should be used to prevent excessive side-loading on the piston rod. For load-holding requirements, note that the rear adjuster acts only as a travel stop and the air cushion only decelerates the load; neither will hold position without live air pressure. For secure load holding without continuous air, consider an AirTAC SAIL pneumatic lock, a BSAI clamp-lock cylinder, or an external rod lock. This model is dimensionally interchangeable per ISO 15552 and utilizes the SAIJ mounting subset: 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 SAIJ200AX250-100S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides a push force of 15708N and a pull force of 15080N. At the maximum 1.0 MPa pressure, it achieves a maximum push force of 3204 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke by up to 100 mm. This creates a usable travel window of 150 to 250 mm from the 250 mm nominal stroke, allowing precise end-position tuning without changing the cylinder.
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