Airtac SAIJ100 Adjustable Cylinder SAIJ100X70-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X70-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 70mm 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
- Stroke70 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X70-50
The AirTAC SAIJ100X70-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 3927N of push force at 0.5 MPa. Its defining feature is an external adjusting screw that trims the retract end-position, providing a usable travel window of 20-70mm from the 70mm nominal stroke. This allows precise fine-tuning during commissioning without swapping out the entire actuator.
Built with a carbon steel piston rod and a PT tapered port thread, this extruded aluminum body cylinder omits the FB, CA, CB, and CR mounting options, utilizing a focused set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets. The rear stopper acts purely as a travel limit and does not hold the load without live air pressure; for true load-holding, an external rod lock or related SAIL lock cylinder is required.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X70-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X70-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 70 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 SAIJ100X70-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×70 | 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 SAIJ100X70-50 Is Used
Product Changeover
Dial in the exact end-position from 20 to 70mm when switching machinery between different product sizes, eliminating the need for physical spacer modifications.
Fixture Calibration
Fine-tune the clamping reach during machine commissioning to prevent over-travel, using the rear stopper to safely set the precise 100mm bore thrust limit.
Adjustable Ejection
Control the ejection stroke length on the fly for varying part depths, relying on the 3927N push force at 0.5 MPa to clear heavy workpieces efficiently.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X70-50 the Right Cylinder?
Selecting this 100mm bore actuator makes sense when an application requires high thrust combined with variable end-stop positioning, such as accommodating multiple product sizes on a single machine. If the full 70mm stroke is consistently needed without adjustment, a standard fixed-stroke SAI cylinder is a simpler choice, whereas the SAIJ100X70-50 shines in changeover setups. If less force is required, stepping down to an 80mm bore yields 2513N push force at 0.5 MPa.
To achieve a true ISO 15552 replacement match, verify the 100mm bore, 70mm nominal stroke, 50mm adjustment range, PT port threads, and the required mounting bracket. Since this SKU does not include the -S magnet option, it cannot host CMSE reed or DMSE electronic sensors without modification. The 25mm rod and M20x1.5 thread provide robust side-load resistance, though any application approaching the maximum stroke limits should still use an external guide.
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 SAIJ100X70-50 FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 801 kgf.
The rear adjusting screw acts as a mechanical stopper that shortens the effective travel. With a 70mm nominal stroke and a -50 adjustment code, you can tune the usable stroke anywhere within a 20-70mm window without adding external stops.
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 SAIJ100X70-50
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.