Airtac SAIJ125 Adjustable Cylinder SAIJ125BX190-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125BX190-10 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- 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 SAIJ125BX190-10
The AirTAC SAIJ125X190-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 180 to 190 mm. It delivers a substantial 6136 N push force at 0.5 MPa, stepping up to 11045 N at 0.9 MPa, making it suitable for heavy-duty positioning tasks. The barrel is extruded aluminum with sensor grooves on both sides, and this specific configuration features a SUS304 stainless steel rod and PT tapered ports.
The 10 mm rear adjusting screw acts as a mechanical stopper to fine-tune the retract end position during commissioning without swapping the cylinder or adding external stops. It is not a locking device; the cylinder relies on live air and adjustable air cushions at both ends for motion control. For applications requiring position holding without pneumatic pressure, a related SAIL or BSAI series would be required.
Airtac SAIJ125 Adjustable Cylinder SAIJ125BX190-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125BX190-10 |
|---|---|
| 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 | 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 SAIJ125BX190-10
| 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 SAIJ125BX190-10 Is Used
Product Size Changeover
Dial in the exact 180 to 190 mm retract position on a packaging line when switching to a slightly shorter product format, avoiding mechanical rebuilds.
End-Stop Commissioning
Fine-tune the final end position during machine setup to hit a hard stop precisely, absorbing minor fixture tolerances with the 10 mm adjustment window.
Heavy Press Positioning
Leverage the 6136 N push force at 0.5 MPa to move heavy jigs into place, using the rear adjuster to set the exact resting distance for the assembly operation.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125BX190-10 the Right Cylinder?
Select this 125 mm bore when a machine changeover demands precise end-stop tuning within a 180-190 mm travel window, rather than casting a fixed 190 mm stroke in concrete. If your application requires less thrust, stepping down to the 80 mm bore yields 2513 N at 0.5 MPa, whereas the 125 mm bore provides 6136 N at the same pressure. This SKU uses a SUS304 stainless steel rod for corrosion resistance and PT tapered ports. When replacing an ISO 15552 cylinder, verify the 190 mm stroke, the 10 mm adjustment range, and the mounting interface (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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 SAIJ125BX190-10 FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke by up to 10 mm. This creates a usable travel window of 180 to 190 mm, giving you precise control over the retract end position during setup without needing external stops.
At a 0.5 MPa operating pressure, this 125 mm bore cylinder generates 6136 N of push force and 5734 N of pull force. At 0.9 MPa, the push force increases to 11045 N.
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