Airtac SAIJ125 Adjustable Cylinder SAIJ125X105-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X105-10S 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 SAIJ125X105-10S
The AirTAC SAIJ125X105-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 95 to 105 mm. It delivers 6136 N of push force and 5734 N of pull force at 0.5 MPa, placing it in a heavy-duty force class for demanding pneumatic tasks. The integrated -S magnet enables direct mounting of CMSE reed and DMSE electronic sensors along the dual-sided extruded aluminum barrel grooves.
This model features a 32 mm carbon steel piston rod with an M27x2 thread and a PT tapered port. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position during commissioning without adding external stops. It is not a locking device and will not hold a load without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X105-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X105-10S |
|---|---|
| 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 SAIJ125X105-10S
| 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 SAIJ125X105-10S Is Used
Product Changeover Dials
Fine-tune the retract end position by up to 10 mm during line changeovers to accommodate slightly different product lengths without replacing the cylinder.
Machine Setup Calibration
Use the rear mechanical stop to precisely set the 95-105 mm travel window during initial commissioning, eliminating the need for external spacers.
Heavy-Duty Forming Stops
Leverage the 6136 N push force at 0.5 MPa for high-thrust pressing or holding operations where a robust, adjustable physical end-stop is required.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X105-10S the Right Cylinder?
Choose this 125 mm bore when an 80 mm bore falls short, offering 2513 N of push force at 0.5 MPa compared to this model's 6136 N. The 10 mm adjustment range is ideal for product changeovers, allowing you to dial in the exact end-stop without physically swapping the cylinder. For load-holding without continuous air supply, this standard adjuster setup is insufficient; consider an SAIL air-released lock or BSAI clamp-lock cylinder instead.
To match this ISO 15552 cylinder dimensionally, specify a 125 mm bore, 105 mm stroke, 10 mm adjustment, PT port thread, and the -S magnet option. The supported mounting set is restricted to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles found on some other variants.
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 SAIJ125X105-10S FAQ
At 0.5 MPa, 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.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from 105 mm down to 95 mm. It only sets the end position and provides no load-holding capability without live air.
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