Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-100S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-100S 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 SAIJ125X130-100S
The AirTAC SAIJ125X130-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 6136N pull force at 0.5 MPa and features a carbon steel piston rod with an M27x2 thread. Because the nominal 130mm stroke can be dialed back by up to 100mm, operators gain a highly flexible 30-130mm usable travel window for precise end-position tuning.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops during product changeovers. The extruded aluminum barrel includes sensor grooves on both sides, and the -S magnet directly supports AirTAC CMSE reed and DMSE solid-state switches. It utilizes a PT tapered port thread and relies on 40mm variable air cushions at both ends to decelerate the load smoothly.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-100S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-100S |
|---|---|
| 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 SAIJ125X130-100S
| 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 SAIJ125X130-100S Is Used
Variable End-Stop Positioning
Dial in the exact retract distance between 30mm and 130mm on the fly for machines requiring frequent stroke modifications without changing hardware.
Product Size Changeover
Quickly adapt the cylinder travel to accommodate different product lengths on a packaging line using the rear adjusting screw.
Heavy-Duty Clamping Setup
Leverage the 6136N pull force to secure heavy workpieces while fine-tuning the clamping depth during initial machine commissioning.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-100S the Right Cylinder?
Choose this 125mm bore when a 100mm bore yields insufficient thrust (its 0.5MPa pull is 3681N) and you need variable end-stops within a 30-130mm window. The rear adjuster acts strictly as a travel stop, not a lock; a plain SAIJ cannot hold a load without live air, so for dead-stop security explore an SAIL or BSAI cylinder. For replacement matching, verify the 130mm stroke, 100mm adjustment, PT port, and the 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 SAIJ125X130-100S FAQ
At 0.5 MPa, this 125mm bore cylinder provides 6136N of pull force and 8590N of push force. It can deliver up to 1251 kgf at its maximum 1.0 MPa operating pressure.
The rear stopper allows you to shorten the 130mm nominal stroke by up to 100mm, creating a usable travel window of 30-130mm. This stopper only sets the travel end and does not lock the load without live air pressure.
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