Airtac SAIJ125 Adjustable Cylinder SAIJ125AX600-100
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX600-100 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 SAIJ125AX600-100
The AirTAC SAIJ125X600-100 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 8590 N of push force at 0.7 MPa. Its 600 mm nominal stroke incorporates a 100 mm adjustment range, yielding a precise 500-600 mm usable travel window. This allows operators to dial in the exact retract end-position during commissioning without swapping hardware.
Built with a SUS420J2 stainless steel rod (option A) for superior corrosion resistance, this 125 mm bore unit operates at speeds of 30-500 mm/s. It features PT tapered port threads (G1/2) and utilizes a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2. The extruded aluminum barrel includes dual sensor grooves, ready to accept CMSE reed or DMSE electronic switches if a magnet is added later.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX600-100 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX600-100 |
|---|---|
| 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 SAIJ125AX600-100
| 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 SAIJ125AX600-100 Is Used
Product Size Changeovers
Quickly modify the retract distance by up to 100 mm when switching machinery between different product lengths, eliminating the need to physically swap cylinders.
Heavy Press Positioning
Fine-tune the end-stop for heavy pressing or forming applications requiring 8590 N of thrust at 0.7 MPa, ensuring precise contact without over-travel.
Long-Stroke Material Handling
Manage extended 500-600 mm travel windows on automated lines, using the rear adjuster to perfectly set the retracted position for varying pallet sizes.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX600-100 the Right Cylinder?
Select this 125 mm bore cylinder when an application requires substantial thrust—such as 8590 N at 0.7 MPa—combined with variable end-stop positioning. If your setup demands less force, stepping down to a 100 mm bore provides 5497 N at 0.7 MPa. Conversely, heavier loads might require the 160 mm bore at 14074 N. The adjustable stroke is ideal for product changeovers, but remember the rear screw acts only as a travel stop; it will not hold the load without live air. For true load-holding without pressure, consider an external rod lock or the AirTAC SAIL series.
Because this model features a 600 mm stroke, the 32 mm rod diameter and M27x2 rod thread must carry significant side loads. Always use an external guide to prevent rod binding over this long travel distance. To match this ISO 15552 dimensionally interchangeable cylinder, specify: 125 mm bore, 600 mm stroke, 100 mm adjustment, PT port thread, SUS420J2 rod, no magnet, and the required mounting bracket.
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 SAIJ125AX600-100 FAQ
It features a rear external stopper screw that allows you to shorten the effective stroke by up to 100 mm. This creates a 500-600 mm adjustable travel window, enabling fine-tuning of the end position at commissioning without adding external stops.
At an operating pressure of 0.5 MPa, it provides 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N.
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