Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-10 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
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-10
The AirTAC SAIJ125X190-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a substantial 6136N push force at 0.5 MPa. It features an extruded aluminum barrel with sensor grooves on both sides and a SUS420J2 stainless steel rod for enhanced durability against corrosion and side-load wear. The PT tapered ports ensure a tight pneumatic seal.
With a nominal 190mm stroke and a 10mm adjustment range, this model provides a usable travel window of 180-190mm. This built-in adjuster acts as a travel stop to fine-tune end positions at commissioning without adding external stops. Note that this adjuster and the variable air cushions only decelerate the load; they do not hold it without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-10 |
|---|---|
| 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 SAIJ125AX190-10
| 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 SAIJ125AX190-10 Is Used
End-Position Tuning
Dial in the exact 180-190mm travel during commissioning to set precise stops without installing external physical spacers.
Product Changeover
Quickly adjust the retract stop on a packaging line when switching to a slightly shorter product size.
Heavy Clamping
Leverage 6133N of pull force to securely clamp large workpieces while fine-tuning the clamping depth.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-10 the Right Cylinder?
Choose this 125mm bore when you need higher thrust than the 100mm bore (3927N push at 0.5 MPa) but less than the 160mm class (10053N). The 10mm adjustable window is ideal for dialing in exact end positions during machine setup or product changeovers, avoiding the need to physically swap out a fixed-stroke SAI cylinder. If your process requires holding a load without continuous air pressure, consider the SAIL or BSAI series instead, as the SAIJ adjuster is a stop, not a lock. For a 190mm stroke, the M27x2 rod thread handles side loads well, but always use an external guide for heavy loads. To replace an ISO 15552 cylinder, match the 125mm bore, 190mm stroke, PT port thread, and select from the SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, or 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 SAIJ125AX190-10 FAQ
At 0.5 MPa operating pressure, it provides 6136N of push force and 5734N of pull force. At 0.7 MPa, the push force increases to 8590N.
The rear adjusting screw acts as a stopper, allowing you to shorten the effective travel from 190mm down to 180mm. This creates a 180-190mm adjustable window for fine-tuning the retract end position without swapping the cylinder.
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