Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-10S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-10S 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 SAIJ100BX250-10S
The AirTAC SAIJ100X250-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 240-250 mm from its 250 mm nominal stroke. Delivering 3927 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel piston rod for superior corrosion resistance and features an integrated magnet (-S) for position sensing. The PT tapered port threads ensure a reliable, sealed pneumatic connection.
Because the rear adjuster acts purely as a mechanical stop to fine-tune the end position, it does not hold the load without live air pressure. For load-holding requirements without continuous air supply, consider the SAIL or BSAI series. This cylinder uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-10S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-10S |
|---|---|
| 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 SAIJ100BX250-10S
| 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 SAIJ100BX250-10S Is Used
Precision End-Stop Tuning
Dial in the exact 240-250 mm retraction point during machine commissioning without installing external physical stops.
Product Changeover Setup
Quickly adjust the end-of-stroke position on packaging lines when handling slightly different product sizes.
Corrosive Environment Actuation
Utilize the SUS304 stainless steel rod for reliable clamping and positioning in food processing or chemical environments.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-10S the Right Cylinder?
Choose this 100 mm bore when an 80 mm bore (providing 2513 N push at 0.5 MPa) is insufficient, but before stepping up to a 125 mm bore (6136 N). The 10 mm adjustable stroke is selected for precise commissioning end-position tuning and product changeover without swapping the cylinder or adding external stops. The integrated magnet works seamlessly with AirTAC CMSE reed switches and DMSE solid-state electronic sensors.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 250 mm stroke, 10 mm adjustment, PT G1/2 port, and SUS304 rod material. Since the 250 mm stroke is under the 300 mm threshold, side-load stress is minimal, but long unsupported strokes still require an external guide to prevent rod binding.
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 SAIJ100BX250-10S FAQ
It features a rear adjusting screw that allows you to shorten the effective stroke by up to 10 mm, providing a usable travel window of 240-250 mm. The adjuster acts as a mechanical stop to set the end position and does not lock the load without live air pressure.
At an operating pressure of 0.5 MPa, the SAIJ100X250-10-S generates a push force of 3927 N and a pull force of 3681 N. At 0.9 MPa, the push force increases to 7068 N.
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