Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-40
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-40 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 SAIJ125AX130-40
The AirTAC SAIJ125X130-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 6136N of thrust at 0.5 MPa. Its 40mm adjustment screw allows you to dial back the 130mm nominal stroke, creating a precise 90-130mm usable travel window. This fine-tuning happens directly at commissioning without requiring a cylinder swap or external stops.
This unit features a SUS420J2 stainless steel rod for enhanced durability against moisture and a PT tapered port thread for a high-integrity pneumatic seal. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to easily mount position switches if needed.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-40 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-40 |
|---|---|
| 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 SAIJ125AX130-40
| 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 SAIJ125AX130-40 Is Used
Product Changeovers
Dial in the exact 90 to 130mm end position during format changeovers on packaging lines without swapping hardware.
Heavy Clamping
Provides 6136N of clamping force at 0.5 MPa for securing heavy components during machining or assembly.
Commissioning Setup
Fine-tune the retract end-position during machine setup to prevent mechanical crashes and optimize cycle timing.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-40 the Right Cylinder?
Choose this 125mm bore when an 80mm bore (2513N push at 0.5 MPa) lacks the force for heavy product handling, but you want to avoid the size of a 160mm bore. The adjustable 90-130mm travel window is ideal for packaging lines that frequently change product sizes, replacing the need to stock multiple fixed-stroke SAI cylinders.
Because the 130mm stroke is below the 300mm threshold, side-load risks are moderate, but the 32mm rod still requires alignment. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for dead-air load holding, select a SAIL or BSAI model. This cylinder is dimensionally interchangeable per ISO 15552 and uses the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, 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 SAIJ125AX130-40 FAQ
At 0.5 MPa operating pressure, this 125mm bore cylinder provides 6136N of push force and 5734N of pull force. At 0.7 MPa, the push force increases to 8590N.
The rear adjuster screw lets you shorten the 130mm nominal stroke by up to 40mm, providing a usable travel window of 90 to 130mm. It acts as a physical stop to set the end position and is not a locking mechanism.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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