Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-75
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 130mm 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
- Stroke130 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-75
The AirTAC SAIJ125X130-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 55 to 130 mm, allowing you to dial back the nominal 130 mm stroke by up to 75 mm during commissioning. This bore size delivers 6136 N of pull force at 0.5 MPa, making it suited for heavy-duty positioning tasks.
This model features a SUS420J2 stainless steel rod for enhanced corrosion resistance compared to standard carbon steel. It uses PT tapered ports and operates at speeds of 30-500 mm/s. The extruded aluminum barrel includes sensor grooves on both sides, though this unit is not equipped with a magnet for switches.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-75 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 130 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 SAIJ125AX130-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×130 | 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 SAIJ125AX130-75 Is Used
Product Changeover
Rapidly adjust the 55-130 mm travel window to accommodate different package sizes on a packaging line without changing out the actuator hardware.
Heavy Positioning
Leverage the 6136 N pull force to move substantial jigs or platens into exact final positions by fine-tuning the rear stopper during machine setup.
Assembly Pressing
Apply precise end-of-stroke force for pressing bearings or pins, using the 75 mm adjuster to set the exact depth without reprogramming machine logic.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-75 the Right Cylinder?
Choose this 125 mm bore when an 80 mm bore (providing 2268 N pull at 0.5 MPa) lacks the necessary force, but a 160 mm bore (9425 N pull) would be excessive overkill. The 75 mm adjustment range is particularly useful for machines that undergo frequent product-size changeovers, allowing operators to reposition the end stop without swapping the cylinder or adding external mechanical stops.
Because this is a standard double-acting cylinder, the rear adjuster acts only as a travel stop and cannot hold the load without live air pressure. For fail-safe load holding, consider the SAIL or BSAI series instead. When replacing an ISO 15552 cylinder, match the 125 mm bore, 130 mm stroke, 75 mm adjustment, PT G1/2 port, and mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
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 SAIJ125AX130-75 FAQ
The rear adjuster screw lets you shorten the effective travel from 130 mm down to as little as 55 mm. This creates a 75 mm adjustable window, allowing you to fine-tune the end position at commissioning or during product changeovers without swapping the cylinder.
At 0.5 MPa, it provides 6136 N of pull force and 8590 N of push force. At the maximum operating pressure of 1.0 MPa, it can deliver up to 1251 kgf of push force.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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