Airtac SAIJ125 Adjustable Cylinder SAIJ125X190-30
The AirTAC SAIJ125 Adjustable Cylinder SAIJ125X190-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 190mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ125 mm
- Stroke190 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X190-30
The AirTAC SAIJ125X190-30 is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 190 mm stroke that can be fine-tuned down by up to 30 mm, giving you a precise 160-190 mm usable travel window during commissioning.
This model features a carbon steel piston rod with an M27x2 thread, paired with a PT tapered G1/2 port. It includes variable air cushions at both ends to manage kinetic energy, but remember the rear adjuster acts only as a travel stop, not a lock. For position holding without live air pressure, consider the SAIL or BSAI series instead.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X190-30 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X190-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 190 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 | 5734 N | 5734 N |
| 0.7 MPa | 8027 N | — |
| Max (@1.0 MPa) | 1169 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ125 Adjustable Cylinder SAIJ125X190-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×190 | 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 SAIJ125X190-30 Is Used
Machine Setup Changeover
Dial in the 160-190 mm travel window during product line changeovers to accommodate different package sizes without swapping cylinders.
Variable End-Stop Tuning
Adjust the retract end-position precisely at commissioning to perfect alignment and avoid mechanical binding.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X190-30 the Right Cylinder?
The adjustable 160-190 mm window is perfect for applications requiring variable end-stops or product-size changeovers, eliminating the need to bolt on external stops. To match this exact ISO 15552 replacement, specify the 125 mm bore, 190 mm stroke, 30 mm adjustment, PT G1/2 port, and standard carbon steel rod.
Because the stroke is under 300 mm, side-load stress is manageable, but always ensure adequate external guiding for heavy loads. The SAIJ supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. Operating speed for this bore size ranges from 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 SAIJ125X190-30 FAQ
At the maximum 1.0 MPa pressure, it achieves a maximum thrust of 1251 kgf.
The rear adjuster screw allows you to shorten the effective stroke by up to 30 mm, creating a usable travel window of 160 to 190 mm. This stopper fine-tunes the end position but does not lock the load without live air pressure.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Related AirTAC SAI Cylinders
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