Airtac SAIJ125 Adjustable Cylinder SAIJ125AX105-100S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX105-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 105mm 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.
- BoreØ125 mm
- Stroke105 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX105-100S
The AirTAC SAIJ125X105-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 6136N of push force at 0.5MPa. Its 100mm adjustment screw creates a highly flexible usable travel window from 5 to 105mm, allowing operators to dial in the exact retract end-position during commissioning without swapping hardware. This model includes a -S magnet for position sensing and uses a SUS420J2 stainless steel rod for improved corrosion resistance.
The extruded aluminum barrel features sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic switches for precise feedback. PT tapered ports (G1/2) handle the pneumatic supply, while the integrated air cushions decelerate the heavy 32mm rod at travel ends. Remember that the rear adjuster acts purely as a mechanical stop; it does not lock the load without continuous live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX105-100S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX105-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 105 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 40 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ125 Adjustable Cylinder SAIJ125AX105-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×105 | 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 SAIJ125 Adjustable Cylinder SAIJ125AX105-100S Is Used
Product Changeover
Quickly reconfigure the retract distance from 5 to 105mm to accommodate varying package sizes on a packaging line without changing the cylinder.
Machine Setup
Fine-tune the exact end-stop position during initial commissioning to achieve precise mechanical alignment without adding external spacers.
Variable End Stops
Use the 100mm adjustment range to modify the working stroke dynamically for different clamping depths in heavy-duty assembly fixtures.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX105-100S the Right Cylinder?
Choose this 125mm bore when an application requires substantial force (6136N push at 0.5MPa) but demands variable retract distances, such as accommodating multiple product sizes on a single line. If your setup needs less thrust, stepping down to a 100mm bore yields 3927N; stepping up to a 160mm bore provides 10053N. The adjustable stroke prevents the need to inventory multiple fixed-stroke SAI cylinders for each changeover. For true load-holding without air pressure, select a SAIL or BSAI cylinder instead of relying on this adjuster.
When replacing an ISO 15552 cylinder, match the 125mm bore, 105mm nominal stroke, 100mm adjustment range, PT port thread, and -S magnet. Mounting options for this profile cylinder include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the stroke exceeds 300mm on larger variants, external guides are recommended, but even at 105mm, the 32mm rod and M27x2 thread handle side loads robustly.
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 SAIJ125 Adjustable Cylinder SAIJ125AX105-100S FAQ
At 0.5MPa operating pressure, this 125mm bore cylinder provides 6136N of push force and 5734N of pull force. At 0.7MPa, the push force increases to 8590N.
The rear adjuster allows you to trim the nominal 105mm stroke by up to 100mm, providing a usable travel window between 5 and 105mm. It acts as a mechanical stop to set the end position and does not lock the load without live air.
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 SAIJ125 Adjustable Cylinder SAIJ125AX105-100S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.