Airtac SAIJ125 Adjustable Cylinder SAIJ125AX600-75
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX600-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 600mm 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
- Stroke600 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX600-75
The AirTAC SAIJ125X600-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 600 mm travel by up to 75 mm. This creates a precise 525-600 mm usable stroke window, enabling exact end-position tuning at commissioning without swapping the hardware or adding external stops. It delivers substantial thrust, providing 6136 N push force at 0.5 MPa and 11045 N at 0.9 MPa.
This unit features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and pairs with PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Operating speed is rated for 30-500 mm/s, and the rear adjuster functions strictly as a travel stop to set deceleration endpoints, not as a load-holding lock.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX600-75 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX600-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 600 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 SAIJ125AX600-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×600 | 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 SAIJ125AX600-75 Is Used
Variable End-Stop Machining
Dial in the exact clamping position for different part lengths by adjusting the rear stopper within the 525-600 mm window without external spacers.
Product Changeover Systems
Quickly reconfigure assembly lines for new packaging sizes by fine-tuning the 600 mm stroke endpoint at commissioning rather than replacing the cylinder.
Heavy-Duty Positioning
Leverage the 11045 N push force at 0.9 MPa to move heavy pallets or molds into exact alignment before a secondary process begins.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX600-75 the Right Cylinder?
Choose this 125 mm bore when an application requires heavy thrust—up to 11045 N at 0.9 MPa—and a variable end-stop within a 525-600 mm window. If you need less force, stepping down to the 100 mm bore yields 7068 N at 0.9 MPa, whereas moving up to the 160 mm bore provides 18095 N. Because the 600 mm stroke is substantial, you must use an external guide to support the load and prevent side-loading damage to the 32 mm diameter rod and M27x2 rod thread.
Select this adjustable model over a fixed-stroke SAI cylinder when you need fine end-position tuning during product changeovers. To replace this unit, match the 125 mm bore, 600 mm stroke, 75 mm adjustment range, PT G1/2 port, and standard mounting options (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that a plain SAIJ does not hold its position without live air; for true load-holding, consider an AirTAC SAIL or BSAI cylinder.
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 SAIJ125AX600-75 FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from 600 mm down to 525 mm. This provides a 75 mm adjustment window for fine-tuning the retract end position during setup.
At a 0.5 MPa operating pressure, it provides 6136 N of push force and 5734 N of pull force. At 0.9 MPa, the push force increases to 11045 N.
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 SAIJ125AX600-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.