Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-30
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-30 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 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 SAIJ125AX190-30
The AirTAC SAIJ125X190-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel anywhere within a 160-190 mm window. It delivers robust thrust, pushing with 6136 N and pulling with 5734 N at 0.5 MPa, making it suitable for heavy-duty positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
This specific configuration incorporates an SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and uses PT tapered port threads. The rear adjustment mechanism acts purely as a travel stop to set the retract end position; it does not lock or hold the load without continuous live air pressure. For load-holding requirements without air, consider an external pilot-operated check valve or the SAIL series.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-30 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-30 |
|---|---|
| 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 | 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 SAIJ125AX190-30
| 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 SAIJ125AX190-30 Is Used
Variable End-Stop Forming
Dial in the exact retract position for metal forming or stamping presses within the 160-190 mm window without changing the cylinder.
Product Size Changeover
Quickly adjust the stroke length by up to 30 mm on packaging lines when switching between different product dimensions.
Heavy-Duty Machine Setup
Leverage the 6136 N push force at 0.5 MPa to move heavy fixtures while fine-tuning the final resting position at commissioning.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-30 the Right Cylinder?
Choose this 125 mm bore cylinder when a 63 mm bore (providing 1559 N push force at 0.5 MPa) is insufficient, but an 80 mm bore (2513 N) cannot quite meet your maximum thrust demands. The adjustable stroke is ideal for applications requiring variable end-stops during machine setup or product changeovers, eliminating the need to physically swap out a fixed-stroke SAI cylinder. When matching ISO 15552 replacements, verify the 190 mm stroke, 30 mm adjuster range, PT G1/2 port, and your required mounting style.
Because the 190 mm stroke is relatively short for this large bore, side-loading is less of a concern than with longer strokes, but you should still ensure the load is properly guided. The SAIJ series supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR configurations. 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 SAIJ125AX190-30 FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder provides a push force of 6136 N and a pull force of 5734 N. At the maximum pressure of 0.9 MPa, the push force increases to 11045 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 190 mm nominal stroke by up to 30 mm, providing an effective travel range of 160-190 mm. It only sets the end position and does not lock the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-30
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.