Airtac SAIJ100 Adjustable Cylinder SAIJ100BX900-50S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX900-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 900mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke900 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX900-50S
The AirTAC SAIJ100X900-50-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 900 mm stroke that can be fine-tuned backward by up to 50 mm, yielding an exact usable travel window of 850 to 900 mm.
This variant features a SUS304 stainless steel rod (code B) for superior corrosion resistance and includes a built-in magnet (-S) for position sensing with AirTAC CMSE reed and DMSE electronic switches. The extruded aluminum barrel includes sensor grooves on both sides. It supports a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR configurations.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX900-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX900-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 900 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX900-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×900 | 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 SAIJ100BX900-50S Is Used
Variable End-Stop Tuning
Dial in the 850 to 900 mm travel window during machine commissioning to perfectly strike a press or forming tool without adding external physical stops.
Product Size Changeovers
Quickly adapt a long-stroke conveyor diverter or pusher to accommodate different product lengths on the fly by adjusting the rear screw up to 50 mm.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX900-50S the Right Cylinder?
An adjustable stroke is selected over a fixed SAI cylinder when you need to dial in the exact end-of-travel position during commissioning or product changeovers without swapping the hardware or adding external stops. At 900 mm, the unsupported stroke is highly susceptible to side-loading; an external guide rail is mandatory to prevent rod binding.
For direct interchangeability, match the ISO 15552 dimensions, 100 mm bore, 900 mm stroke, 50 mm adjustment range, PT tapered port threads, and the -S magnet. Remember that the rear adjuster acts purely as a mechanical stop to set deceleration, not as a locking device. A plain SAIJ cannot hold a load without live air pressure; for true fail-safe load holding, use an SAIL pneumatic lock, a BSAI clamp-lock, or an external rod lock.
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 SAIJ100BX900-50S FAQ
The rear adjuster screw lets you shorten the effective travel from the 900 mm nominal stroke down to 850 mm. It acts as a mechanical stop to fine-tune the retract end position and relies on the air cushion for deceleration; it does not lock the load without live air.
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