Airtac SAIJ125 Adjustable Cylinder SAIJ125X105-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X105-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 105mm 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
- Stroke105 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X105-10
The AirTAC SAIJ125X105-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 6136N of push force at 0.5 MPa. By turning the external stopper screw, you can trim the effective travel by up to 10mm, creating a precise 95-105mm usable stroke window without needing external stops. This feature is ideal for fine-tuning end positions during machine commissioning.
This model features a carbon steel piston rod with an M27x2 thread and PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to easily add CMSE reed or DMSE electronic sensors later if positioning feedback is required. It utilizes a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X105-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X105-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 105 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 SAIJ125X105-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×105 | 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 SAIJ125X105-10 Is Used
Machine Commissioning
Dial in the exact 95-105mm end position during initial setup to compensate for mechanical tolerances without machining custom spacers.
Product Changeover
Quickly adjust the retract stop on the line when switching to a slightly different product size that requires less total travel.
High-Force Clamping
Leverage the 6136N push force at 0.5 MPa to secure heavy workpieces while fine-tuning the clamping depth via the rear screw.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X105-10 the Right Cylinder?
Select this 125mm bore cylinder when your application requires substantial thrust, stepping up from a 100mm bore that provides 3927N push force at 0.5 MPa. The adjustable stroke is chosen over a fixed SAI model when you need variable end-stops for product changeovers or exact setup tuning. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for dead-end load holding, consider an external rod lock or a SAIL pneumatic lock cylinder.
For an exact ISO 15552 replacement match, verify the 125mm bore, 105mm nominal stroke, 10mm adjustment range, PT port threads, and standard carbon steel rod without a magnet. Operating speed for this size is 30-500 mm/s.
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 SAIJ125X105-10 FAQ
It features a rear stopper screw that allows you to shorten the nominal 105mm stroke by up to 10mm. This provides a usable travel window of 95-105mm, which can be fine-tuned at commissioning without swapping the cylinder.
At a 0.5 MPa operating pressure, this double-acting cylinder provides 6136N of push force and 5734N of pull force. It can reach a maximum push force of 11045N at 0.9 MPa.
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