Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 250mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke250 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-100S
The AirTAC SAIJ100X250-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 250 mm stroke that can be dialed back by up to 100 mm, yielding a highly versatile 150-250 mm usable travel window. Delivering 7068 N of push force at 0.9 MPa, this 100 mm bore actuator handles heavy positioning tasks. The barrel features an extruded aluminum profile with sensor grooves on both sides, and the piston rod is SUS304 stainless steel for superior corrosion resistance.
The rear adjusting screw acts purely as a mechanical stop to fine-tune the retract end position during commissioning without adding external stops. It does not hold the load without live air pressure; for dead-pilot load holding, consider SAIL or BSAI cylinders. This SAIJ model includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors, and uses PT tapered ports.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 250 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | 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 SAIJ100 Adjustable Cylinder SAIJ100BX250-100S Is Used
Product Changeovers
Dial in the 150-250 mm travel window during format changes to accommodate different package sizes without replacing the cylinder.
Diversion & Sorting
Fine-tune the retract stop position precisely to the conveyor lane requirement at commissioning, ensuring accurate product routing.
Heavy Assembly Presses
Leverage the 7068 N push force at 0.9 MPa to seat heavy components, using the rear stop to set the exact pressing depth.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-100S the Right Cylinder?
Choose this 100 mm bore cylinder when an application requires substantial thrust (3927 N push at 0.5 MPa) alongside flexible end-position tuning. If your process needs less force, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa, whereas moving up to a 125 mm bore provides 6136 N. The 100 mm adjustment range is ideal for product changeovers on a line, allowing operators to reposition the retract stop without swapping the actuator. Unlike a fixed-stroke SAI cylinder, this SAIJ model simplifies machine setup.
Because the 250 mm stroke is significant, an external guide is recommended to prevent excessive side-loading on the SUS304 rod, despite its robust 25 mm diameter and M20x1.5 thread. To match this ISO 15552 footprint, specify the 100 mm bore, 250 mm stroke, 100 mm adjustment, PT port thread, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ100 Adjustable Cylinder SAIJ100BX250-100S FAQ
The rear adjuster screw lets you mechanically shorten the retract stroke by up to 100 mm, creating a 150-250 mm usable travel window. It functions as an end-position stop for fine-tuning at commissioning, not as a lock, and the load will move if air pressure is lost.
At 0.5 MPa it provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-100S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.