Airtac SAIJ125 Adjustable Cylinder SAIJ125AX60-20
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX60-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 60mm 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
- Stroke60 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX60-20
The AirTAC SAIJ125X60-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the retract end-position. With a nominal 60 mm stroke and a 20 mm adjustment range, it provides a usable travel window of 40 to 60 mm for precise machine setup without needing external stops. It delivers 6133 N of push force and 5734 N of pull force at 0.5 MPa, making it suited for heavy-duty positioning.
This model is configured with a SUS420J2 stainless steel rod for enhanced corrosion resistance and uses a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets. It operates at speeds between 30 and 500 mm/s.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX60-20 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX60-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 60 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 SAIJ125AX60-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×60 | 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 SAIJ125AX60-20 Is Used
Product Changeover
Dial in the exact retract position within the 40-60 mm window during packaging line format changes without swapping hardware.
Heavy Clamping
Apply up to 6136 N of clamping force at 0.5 MPa while fine-tuning the exact contact point at machine setup.
Variable End Stops
Set precise retract limits for heavy-duty material ejection, adjusting the stopper on the fly to accommodate different material thicknesses.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX60-20 the Right Cylinder?
Choose this 125 mm bore when you need higher force than a 100 mm bore (3927 N push at 0.5 MPa) but want to avoid the massive footprint of a 160 mm cylinder (10053 N). The adjustable stroke is ideal for product changeovers where the exact end-of-stroke position varies slightly within a 40 to 60 mm window, eliminating the need to physically swap out a fixed SAI cylinder. When matching an ISO 15552 replacement, verify the 60 mm stroke, 20 mm adjustment, PT G1/2 port, and mounting type.
Because the stroke is under 300 mm, side-load stress is manageable, though long unsupported loads still need an external guide. Remember that the rear adjuster acts only as a travel stop; it does not hold the load without live air. For true load-holding, select an SAIL pneumatic lock or BSAI clamp-lock cylinder instead.
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 SAIJ125AX60-20 FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 1251 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke by up to 20 mm. This creates a usable travel window of 40 to 60 mm, allowing precise end-position tuning without replacing the cylinder.
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 SAIJ125AX60-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.