Airtac SAIJ125 Adjustable Cylinder SAIJ125AX80-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX80-10S 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
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX80-10S
The AirTAC SAIJ125X80-10-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster, enabling you to fine-tune the retract end-position by up to 10 mm. This yields a usable travel window of 70-80 mm, letting you dial in the exact stop distance during commissioning without adding external stops. It delivers 6136 N of push force at 0.5 MPa, stepping up to 11045 N at 0.9 MPa.
This specific SKU is built with a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance and includes a magnet for position sensing. The integrated sensor grooves on both sides of the extruded aluminum barrel accept CMSE reed and DMSE electronic switches. The rear adjuster acts purely as a travel stop to set deceleration and end limits; it is not a lock and will not hold a load without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX80-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX80-10S |
|---|---|
| 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 SAIJ125AX80-10S
| 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 SAIJ125AX80-10S Is Used
Heavy Press Tonnage
Provides up to 11045 N of clamping force at 0.9 MPa for heavy-duty pressing, forming, and holding operations.
Product Changeover
The 10 mm rear adjuster allows operators to quickly tune the 70-80 mm travel window for varying product lengths on automated lines.
Corrosive Assembly Lines
The SUS420J2 stainless steel rod resists moisture and washdowns, making it suitable for food processing or packaging machinery.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX80-10S the Right Cylinder?
Select this 125 mm bore when an application requires heavy thrust that a 100 mm bore (providing 3927 N at 0.5 MPa) cannot supply, but a 160 mm bore (10053 N at 0.5 MPa) would be excessive. The adjustable stroke is ideal for machine setups requiring variable end stops or product-size changeovers, offering flexibility that a fixed-stroke SAI cylinder cannot match. Fluid must be air filtered to 40 um.
For a complete ISO 15552 interchangeable replacement match, verify the 125 mm bore, 80 mm stroke, 10 mm adjustment, PT tapered port threads, and the -S magnet option. The mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 configurations, omitting FB, CA, CB, and CR. If your process requires true load-holding without live air, use an SAIL air-released lock or BSAI clamp-lock cylinder instead of relying on the rear stopper.
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 SAIJ125AX80-10S FAQ
At 0.5 MPa it provides 6136 N of push force and 5734 N of pull force. At 0.9 MPa, the push force increases to 11045 N.
The rear stopper screw allows you to shorten the nominal 80 mm stroke by up to 10 mm, creating a usable travel window of 70-80 mm. This stopper only sets the end position; it does not lock the load.
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Covers non-human-caused product damage.
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