Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-50S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 195mm 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
- Stroke195 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-50S
The AirTAC SAIJ125X195-50-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers robust force, providing 8590N of thrust at 0.7 MPa. By turning the rear stopper screw, you can precisely shorten the effective travel, creating a 145-195 mm usable stroke window to perfectly dial in end positions during commissioning.
This variant features a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and includes a built-in magnet (-S) for position detection. It operates at speeds of 30-500 mm/s and uses PT G1/2 ports. The extruded aluminum barrel includes sensor grooves on both sides, seamlessly accepting AirTAC CMSE reed and DMSE electronic solid-state switches.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-50S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 195 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 SAIJ125AX195-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×195 | 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 SAIJ125AX195-50S Is Used
Machine Setup & Changeover
Fine-tune the 145-195 mm retract position during product line changeovers without physically swapping the cylinder or adding external shims.
Variable End-Stop Positioning
Dial in the exact end-of-stroke location within the 50 mm window to accommodate varying material thicknesses or package sizes on the fly.
Heavy-Duty Clamping
Leverage the 8590N push force at 0.7 MPa to securely clamp large workpieces while using the rear adjuster to set the precise clamping depth.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-50S the Right Cylinder?
Choose this 125 mm bore when you need heavy force (8590N at 0.7 MPa) alongside variable end-stops. If your application requires less push, stepping down to a 100 mm bore yields 5497N at 0.7 MPa. The 50 mm adjustment range is ideal for product changeovers on automated lines, allowing you to reposition the retract end without swapping hardware. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
When replacing an ISO 15552 cylinder, match the 125 mm bore, 195 mm stroke, 50 mm adjustment, PT G1/2 port, and -S magnet. Remember that the rear adjuster acts purely as a travel stop, not a lock; the SAIJ does not hold loads without live air. For true load-holding without pressure, consider the SAIL or BSAI series.
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 SAIJ125AX195-50S FAQ
At an operating pressure of 0.7 MPa, this 125 mm bore cylinder generates 8590N of push force and 5734N of pull force. It can reach up to 11045N push force at 0.9 MPa.
The rear stopper screw allows you to trim the effective travel by up to 50 mm. This creates a usable stroke window of 145 to 195 mm, letting you fine-tune the end position at commissioning without altering the cylinder's physical mounting.
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 SAIJ125AX195-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.