Airtac SAIJ125 Adjustable Cylinder SAIJ125X105-100S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X105-100S 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 SAIJ125X105-100S
The AirTAC SAIJ125X105-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 6136N of push force at 0.5 MPa and features a 32mm carbon steel rod with an M27x2 thread. Because this specific SKU carries a 100mm adjustment code on a 105mm nominal stroke, it provides a highly flexible usable travel window of 5 to 105mm.
This wide adjustment band allows operators to dial in the exact retract end-position during commissioning or product changeovers without swapping the cylinder or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet supports AirTAC CMSE reed and DMSE electronic solid-state switches for precise position detection.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X105-100S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X105-100S |
|---|---|
| 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 SAIJ125X105-100S
| 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 SAIJ125X105-100S Is Used
Variable End-Stop Tuning
Ideal for machinery requiring frequent changes to the retract distance, using the 100mm adjustment range to modify the 5-105mm travel window without mechanical rebuilds.
Product Size Changeovers
Enables rapid line changeovers for different product dimensions, relying on the 6136N thrust to push heavy fixtures into newly tuned positions.
Commissioning Calibration
Allows engineers to fine-tune the final end-position during initial setup, absorbing kinetic energy with the 40mm cushioning while the rear stopper sets the exact rest point.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X105-100S the Right Cylinder?
Choose this 125mm bore when an application demands high thrust that a 100mm bore cannot provide, or step down to an 80mm bore if 2513N at 0.5 MPa is sufficient. The SAIJ125X105-100-S is selected specifically when the retract end-position varies significantly, utilizing the 100mm adjuster screw to fine-tune the travel window. Remember that the rear adjuster acts purely as a mechanical stop for deceleration alongside the air cushions; it does not lock the load. For load-holding without live air pressure, consider an AirTAC SAIL or BSAI cylinder. To match this ISO 15552 interchangeable cylinder exactly, specify: 125mm bore, 105mm stroke, 100mm adjustment, PT tapered ports, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and the -S magnet.
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 SAIJ125X105-100S FAQ
At 0.5 MPa operating pressure, this 125mm bore cylinder provides 6136N of push force and 5734N of pull force. At a maximum 1.0 MPa pressure, it can deliver up to 1251 kgf.
The rear adjuster screw allows you to shorten the 105mm nominal stroke by up to 100mm, creating a usable travel window of 5 to 105mm. This stopper sets the retract end-position but does not hold the load without continuous air pressure.
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