Airtac SAIJ125 Adjustable Cylinder SAIJ125AX80-75
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX80-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 80mm 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
- Stroke80 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 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 SAIJ125 Adjustable Cylinder SAIJ125AX80-75
The AirTAC SAIJ125X80-75 is a double-acting ISO 15552 profile cylinder featuring a rear mechanical stroke adjuster. With a nominal 80 mm stroke and a 75 mm adjustment range, it provides a highly flexible 5-80 mm usable travel window. This allows precise end-position tuning at commissioning without swapping hardware. Delivering 8590 N push force at 0.7 MPa, it handles heavy positioning tasks easily.
This model uses a SUS420J2 stainless steel rod (option A) for improved corrosion resistance. It features PT tapered port threads (G1/2) and lacks a standard magnet, meaning position sensing requires adding a magnet (-S) for CMSE reed or DMSE electronic switches. The rear adjuster acts purely as a travel stop, so an external guide is recommended for side-load stability.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX80-75 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX80-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 80 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 SAIJ125AX80-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×80 | 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 SAIJ125AX80-75 Is Used
Variable End-Stop Setup
Dial in the exact 5-80 mm travel window during machine commissioning to accommodate multiple product sizes without external physical stops.
Heavy Product Changeover
Leverage the 8590 N push force at 0.7 MPa to shift heavy pallets or fixtures, adjusting the rear stopper quickly when line formats change.
Position Tuning
Fine-tune the retract end position to achieve precise alignment without machining custom spacers or replacing the entire cylinder.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX80-75 the Right Cylinder?
Choose this 125 mm bore when 50 mm bore cylinders (1374 N at 0.7 MPa) lack the thrust for heavy product changeovers, but a 160 mm bore (14074 N at 0.7 MPa) is excessive. The 75 mm adjustment window is ideal for varying end-stops on a single line. For load-holding without live air, note the SAIJ adjuster is a stop, not a lock; consider SAIL or BSAI cylinders instead.
As a dimensionally interchangeable ISO 15552 cylinder, it matches standard mounting footprints. Configuration: 125 mm bore, 80 mm stroke, 75 mm adjust, PT G1/2 ports, SUS420J2 rod, no magnet, and mounting options limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB/CA/CB/CR).
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 SAIJ125AX80-75 FAQ
The rear adjusting screw acts as a mechanical stop, allowing you to trim the effective travel back from the 80 mm nominal stroke down to as little as 5 mm, creating a 5-80 mm usable window.
It delivers a push force of 6136 N at 0.5 MPa and 8590 N at 0.7 MPa. The maximum push force is 1251 kgf at 1.0 MPa.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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