Airtac SAIJ50 Adjustable Cylinder SAIJ50AX900-100S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX900-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 900mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke900 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 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 SAIJ50 Adjustable Cylinder SAIJ50AX900-100S
The AirTAC SAIJ50X900-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 982 N of push force and 825 N of pull force at 0.5 MPa, utilizing a 20 mm carbon rod with an M16x1.5 thread. This specific SKU features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and includes a magnet (-S) for position sensing.
Because of the 100 mm adjustment code, the effective travel window can be fine-tuned from 800 mm up to the full 900 mm nominal stroke without swapping hardware. The extruded aluminum barrel incorporates sensor grooves on both sides, allowing you to easily mount AirTAC CMSE reed or DMSE electronic solid-state switches along the stroke.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX900-100S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX900-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 900 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ50 Adjustable Cylinder SAIJ50AX900-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | 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 SAIJ50 Adjustable Cylinder SAIJ50AX900-100S Is Used
Variable Length Stops
Dial in the exact retraction point between 800 and 900 mm during machine commissioning to accommodate different material lengths without changing cylinders.
Product Changeover
Rapidly adjust the end-of-stroke position on packaging lines when switching between box sizes, relying on the 100 mm trim range for fast setup.
Sensor-Driven Positioning
Leverage the built-in magnet and dual sensor grooves to mount CMSE or DMSE switches, confirming the adjusted end position across the long 900 mm travel.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX900-100S the Right Cylinder?
Choose this 50 mm bore when an application requires more thrust than a 40 mm bore (628 N push at 0.5 MPa) but lacks the physical space or air volume for a 63 mm cylinder. The adjustable 800-900 mm window is ideal for machine setups requiring variable end-stops during product changeovers, eliminating the need to bolt on external stops or buy a fixed-stroke SAI cylinder. Fluid must be filtered to 40 um.
At 900 mm of travel, the unsupported piston rod is highly susceptible to side-loading; an external guide mechanism is required to prevent premature seal wear. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air—use an AirTAC SAIL or BSAI cylinder for pneumatic locking. This model uses PT tapered ports and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts (omitting FB, CA, CB, CR). It is dimensionally interchangeable per ISO 15552.
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 SAIJ50 Adjustable Cylinder SAIJ50AX900-100S FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N.
The rear adjusting screw acts as an external stopper, allowing you to shorten the effective stroke by up to 100 mm. This creates an adjustable travel window from 800 mm to 900 mm, enabling fine-tuning of the end position without replacing the cylinder.
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