Airtac SAIJ100 Adjustable Cylinder SAIJ100BX55-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX55-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 55mm 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
- Stroke55 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX55-50S
The AirTAC SAIJ100X55-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 3927N of push force at 0.5 MPa. It features a SUS304 stainless steel rod and a PT tapered port. Because of the 50mm adjustment code on a 55mm nominal stroke, you can dial the effective travel back to a precise 5-55mm window during commissioning. This prevents the need to physically swap cylinders when adapting machinery to new product dimensions.
The integrated magnet supports AirTAC CMSE reed and DMSE electronic sensors for exact position feedback. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Remember that the rear screw acts purely as a travel stop to set deceleration alongside the air cushions; it does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX55-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX55-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 55 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 SAIJ100BX55-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×55 | 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 SAIJ100BX55-50S Is Used
Product Size Changeover
Dial in the 5-55mm travel window on the fly to accommodate different material lengths without changing the cylinder.
Machine Setup Tuning
Fine-tune the end-position during initial commissioning to achieve perfect mechanical alignment without adding external stops.
Variable End Stops
Use the rear adjuster to set precise deceleration points for pressing or positioning tasks within a compact footprint.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX55-50S the Right Cylinder?
Selecting this 100mm bore adjustable cylinder makes sense when you need the 3927N push force at 0.5 MPa (or 5497N at 0.7 MPa) combined with highly variable end positions. If your application requires less force, stepping down to an 80mm bore yields 2513N at 0.5 MPa. Conversely, stepping up to 125mm provides 6136N. Choose this SAIJ model over a fixed-stroke SAI when machine setups demand frequent product-size changeovers.
To replace this cylinder per ISO 15552 dimensions, match the 100mm bore, 55mm stroke, 50mm adjustment, PT port thread, and the -S magnet. The 25mm rod and M20x1.5 thread handle substantial side loads, but even with shorter strokes, always ensure external guiding for heavy payloads. For applications requiring true load holding without continuous air pressure, consider the SAIL or BSAI series 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 SAIJ100 Adjustable Cylinder SAIJ100BX55-50S FAQ
At 0.5 MPa it provides 3927N of push force and 3681N of pull force. At 0.7 MPa, the push force increases to 5497N. The operational speed range is 30-800 mm/s.
The rear adjuster screw allows you to trim the effective travel, creating a usable stroke window of 5 to 55 mm. This stopper sets the end position but does not lock the load without live air pressure.
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 SAIJ100BX55-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.