Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 50mm 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
- Stroke50 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-50
The AirTAC SAIJ100X50-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 50 mm nominal travel to anywhere in a 0-50 mm usable window. Delivering a robust 3927 N push force at 0.5 MPa, it handles heavy positioning tasks while maintaining a dimensionally interchangeable ISO 15552 mounting interface.
This configuration features a SUS304 stainless steel rod for superior corrosion resistance and utilizes PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, ready to accept CMSE reed or DMSE electronic switches if a magnet is added later.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 50 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 SAIJ100BX50-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×50 | 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 SAIJ100BX50-50 Is Used
Product Changeovers
Dial in the exact end-of-stroke position for varying part sizes on a packaging line using the 0-50 mm rear adjustment screw.
Heavy Clamping Setup
Leverage the 3927 N push force to secure heavy workpieces while fine-tuning the clamp contact point during machine commissioning.
Variable End Stops
Replace fixed mechanical stops with this adjustable cylinder to quickly reconfigure actuation depth without adding external hardware.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-50 the Right Cylinder?
Choose this 100 mm bore when a smaller 80 mm unit (providing 2513 N push at 0.5 MPa) lacks the thrust for your tooling, but a 125 mm bore is oversized. The 50 mm adjustment range is ideal for product-size changeovers, letting you fine-tune the end position without swapping hardware. The rear screw acts purely as a travel stop for deceleration; it does not hold the load without live air, so use a SAIL or BSAI lock cylinder for pneumatic load-holding.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 50 mm stroke, PT ports, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the nominal stroke is short, side-loading is minimal, but always ensure the M20x1.5 rod thread is aligned to avoid 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 SAIJ100BX50-50 FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster allows you to shorten the effective travel by up to 50 mm. Since the nominal stroke is 50 mm, you can set the usable travel anywhere in a 0-50 mm window to perfectly tune the end position.
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