Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-30
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 110mm 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
- Stroke110 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-30
The AirTAC SAIJ125X110-30 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 110 mm nominal stroke that can be dialed back by up to 30 mm, yielding a usable travel window of 80 to 110 mm for precise end-position tuning during commissioning. Delivering 6136 N of push force at 0.5 MPa, it handles heavy actuation tasks with ease.
This variant features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, though position sensing requires adding a magnet (-S) to work with CMSE reed or DMSE electronic sensors. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-30 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 110 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 SAIJ125AX110-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×110 | 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 SAIJ125AX110-30 Is Used
Product Changeovers
Dial in the 80 to 110 mm stroke window on the fly to accommodate different product sizes on the same production line without changing cylinders.
Heavy Forming End-Stop
Leverage the 6136 N push force at 0.5 MPa for pressing or forming operations, using the rear adjuster to set the exact travel limit.
Commissioning Calibration
Fine-tune the retract end position during initial machine setup to dial out mechanical tolerances and achieve precise positioning.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-30 the Right Cylinder?
Choose this 125 mm bore cylinder when a 63 mm bore (providing 1559 N at 0.5 MPa) is insufficient for your load, but you want to avoid the larger 160 mm frame. The adjustable stroke is ideal for machine setups requiring variable end stops or product-size changeovers, allowing you to fine-tune the 80 to 110 mm travel window without swapping out the cylinder or adding external stops. Remember that the rear adjuster is a stop, not a lock; if you need to hold a load without continuous air pressure, consider the SAIL or BSAI series instead.
For an exact ISO 15552 replacement, match the 125 mm bore, 110 mm stroke, 30 mm adjustment range, PT port threads, and the required mounting set. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR options. Because the stroke is 110 mm, standard side-load guidance is less critical, but always ensure the load is properly supported to prevent rod binding.
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 SAIJ125AX110-30 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.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from 110 mm down to as little as 80 mm. It only sets the end position and deceleration; it does not lock or hold the load without live air pressure.
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