Airtac SAIJ125 Adjustable Cylinder SAIJ125AX600-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX600-10 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 SAIJ125AX600-10
The AirTAC SAIJ125X600-10 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 6136N of push force at 0.5 MPa, utilizing a 32mm SUS420J2 stainless steel rod with an M27x2 thread. The built-in rear stopper allows you to trim the effective travel, providing a 590-600mm usable window to perfectly dial in the retract end position during commissioning.
This model uses PT tapered port threads (G1/2) and operates at speeds of 30-500mm/s. The extruded aluminum barrel includes dual sensor grooves, though this specific SKU lacks the -S magnet, meaning CMSE or DMSE switches cannot be used without a magnetized variant. The rear adjuster acts purely as a travel stop to set deceleration endpoints and does not lock or hold the load without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX600-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX600-10 |
|---|---|
| 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 SAIJ125AX600-10
| 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 SAIJ125AX600-10 Is Used
Machine Changeover
Dial in the 590-600mm retract position during product size changes without swapping the cylinder or bolting on external mechanical stops.
End-Stop Tuning
Fine-tune the exact end-of-stroke deceleration point at commissioning to absorb mechanical variance and achieve precise positioning.
Heavy Forming Press
Leverage the 6136N push force at 0.5 MPa for heavy-duty pressing operations while trimming the stroke to accommodate different die heights.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX600-10 the Right Cylinder?
Select this 125mm bore cylinder when a 100mm bore (offering 3927N push at 0.5 MPa) lacks the necessary thrust, but you need to fine-tune the retract position without adding external stops. The 10mm adjustment range is ideal for product changeovers where exact end-of-stroke positioning varies slightly. Because the nominal stroke is 600mm, the long unsupported piston rod is susceptible to side-loading; an external guide rail should be used to prevent premature seal wear. For any replacement, verify the 600mm stroke, 10mm adjustment, PT port, and ISO 15552 mounting interface. If the machine requires the load to be held in place without continuous air pressure, this standard SAIJ adjuster will not function as a brake—consider an AirTAC SAIL or BSAI clamping 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 SAIJ125AX600-10 FAQ
At an operating pressure of 0.5 MPa, this 125mm bore cylinder provides 6136N of push force and 5734N of pull force. At 0.9 MPa, the push force increases to 11045N.
The SAIJ125X600-10 features a rear adjusting screw that acts as a mechanical stop, allowing you to shorten the 600mm nominal stroke by up to 10mm. This creates a 590-600mm usable travel window for fine-tuning the end position without moving the cylinder.
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