Airtac SAIJ100 Adjustable Cylinder SAIJ100BX220-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX220-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 220mm 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
- Stroke220 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX220-50S
The AirTAC SAIJ100X220-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position without swapping out the unit. It delivers 5497N of push force at 0.7MPa and provides a usable travel window of 170-220mm, letting you dial back the nominal 220mm stroke by up to 50mm during commissioning.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing. The extruded aluminum barrel includes sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic solid-state switches. The rear screw acts purely as a travel stop to set the retraction end, meaning it will not hold a load without continuous live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX220-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX220-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 220 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 SAIJ100BX220-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×220 | 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 SAIJ100BX220-50S Is Used
Product Changeovers
Dial in the 170-220mm travel window on the fly to accommodate different package sizes on a packaging line without changing the cylinder.
End-Position Tuning
Fine-tune the retraction end-stop during machine commissioning to achieve precise mechanical alignment without machining external spacers.
Heavy Assembly Pressing
Leverage the 5497N push force at 0.7MPa to seat heavy components, using the rear stopper to prevent over-travel.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX220-50S the Right Cylinder?
Selecting this 100mm bore cylinder makes sense when your application requires the 5497N push force at 0.7MPa and variable end-stops for product size changeovers. If your setup only needs 2805N of push force, stepping down to a 63mm bore saves space, while moving up to a 125mm bore provides 8590N for heavier loads. The adjustable stroke is ideal for fine-tuning at commissioning without adding external stops, unlike a fixed-stroke SAI cylinder.
For an exact ISO 15552 dimensionally interchangeable replacement, match the 100mm bore, 220mm stroke, 50mm adjustment code, PT tapered port threads, and the -S magnet option. Mounting choices are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the total stroke is 220mm, ensure adequate external guiding to prevent excessive side-loading on the 25mm rod. For load-holding without live pressure, consider an AirTAC SAIL or BSAI lock cylinder instead of relying on the adjuster.
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 SAIJ100BX220-50S FAQ
The rear adjuster screw allows you to shorten the effective travel by up to 50mm, creating a usable stroke window of 170-220mm. It functions as a mechanical stop to set the retraction end position and does not lock the load without live air pressure.
At 0.7MPa operating pressure, it provides 5497N of push force and 3681N of pull force. At a maximum 1.0MPa pressure, the push force reaches 7068N.
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