Airtac SAIJ125 Adjustable Cylinder SAIJ125AX100-75S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX100-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 100mm 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
- Stroke100 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX100-75S
The AirTAC SAIJ125X100-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a highly flexible usable travel window of 25 to 100 mm. Delivering 6136 N of push force at 0.5 MPa, it handles heavy actuation tasks with ease. The extruded aluminum barrel features sensor grooves on both sides, and because this variant includes a magnet (-S), it is fully compatible with AirTAC CMSE reed and DMSE electronic solid-state switches for precise position detection.
This model utilizes a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and pairs with a PT tapered port thread. The rear adjuster acts purely as a mechanical stop to fine-tune the end position during commissioning; it does not lock or hold the load without live air pressure. For applications requiring true load-holding, the SAIL or BSAI series should be considered instead.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX100-75S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX100-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 100 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 SAIJ125AX100-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×100 | 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 SAIJ125AX100-75S Is Used
Variable End-Position Tuning
Dial in the exact retract distance within the 25-100 mm window during machine setup to accommodate varying material thicknesses without adding external stops.
Product-Size Changeover
Rapidly adjust the effective stroke on automated lines when switching between different product dimensions, minimizing downtime between production runs.
Heavy-Duty Positioning
Leverage the 6136 N push force to move substantial loads while relying on CMSE or DMSE sensors to confirm the adjusted end-of-travel position.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX100-75S the Right Cylinder?
Choose this 125 mm bore when a 100 mm bore (providing 3927 N push at 0.5 MPa) is insufficient, but a larger 160 mm bore (10053 N) would be overkill. The 75 mm adjustment range is ideal for machines requiring variable end-stops or frequent product-size changeovers without physically swapping the cylinder. The mounting footprint is dimensionally interchangeable per ISO 15552, utilizing a reduced set of brackets (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omitting FB, CA, CB, and CR mounts. To replicate this exact configuration, specify the 125 mm bore, 100 mm stroke, 75 mm adjustment, PT port, SUS420J2 rod, and -S magnet.
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 SAIJ125AX100-75S FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 1251 kgf.
The rear mechanical adjuster allows you to shorten the 100 mm nominal stroke by up to 75 mm, creating a usable travel window of 25 to 100 mm. This adjuster functions as a travel stop to fine-tune 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 SAIJ125AX100-75S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.