Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-10 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 SAIJ125AX130-10
The AirTAC SAIJ125X130-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel by up to 10 mm. This creates a precise 120-130 mm usable window, enabling fine end-position tuning at commissioning without adding external stops or swapping the cylinder. It delivers a robust 6136 N push force at 0.5 MPa, making it well-suited for heavy-duty positioning tasks.
This specific configuration features a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for position holding, consider the SAIL or BSAI series.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-10 |
|---|---|
| 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 SAIJ125AX130-10
| 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 SAIJ125AX130-10 Is Used
Heavy-Duty End-Stop Tuning
Dial in the exact 120-130 mm travel window during machine commissioning to perfect heavy pressing or clamping positions without physical spacers.
Product Size Changeover
Quickly adjust the retract stop on automated lines when switching between product variants, saving changeover time versus fixed-stroke actuators.
Rigid Positioning
Leverage the 32 mm rod and SUS420J2 stainless steel construction for robust, corrosion-resistant positioning in demanding industrial environments.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-10 the Right Cylinder?
Choose this 125 mm bore when a 100 mm cylinder (providing 3927 N at 0.5 MPa) lacks the necessary thrust, but a 160 mm bore (10053 N at 0.5 MPa) would be excessive overkill. The adjustable stroke is ideal for applications requiring variable end-stops or product-size changeovers, offering more setup flexibility than a fixed-stroke SAI cylinder. When matching an ISO 15552 replacement, verify the 130 mm stroke, 10 mm adjustment range, PT G1/2 port, and your required mounting bracket.
Although the 32 mm rod diameter provides excellent rigidity, any stroke of 130 mm on a heavy-duty 125 mm bore should still be evaluated for side-load. Ensure external guides are used if the load is not perfectly axial. Because this SKU lacks the -S magnet option, it cannot host CMSE or DMSE sensors without modification.
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 SAIJ125AX130-10 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 0.7 MPa, the push force increases to 8590 N.
A rear external stopper screw lets you shorten the nominal 130 mm stroke by up to 10 mm, creating a 120-130 mm travel window. This allows fine-tuning of the retract end-position without replacing the cylinder.
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