Airtac SAIJ125 Adjustable Cylinder SAIJ125AX200-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX200-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 200mm 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
- Stroke200 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX200-10S
The AirTAC SAIJ125X200-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 6136N push force at 0.5MPa, making it suited for heavy-duty positioning tasks. The integrated -S magnet enables precise end-of-stroke detection using AirTAC CMSE reed or DMSE electronic solid-state sensors housed in the dual-side barrel grooves.
Featuring a SUS420J2 stainless steel rod (code A) and PT tapered ports, this model provides a 190-200mm usable travel window by dialing back the nominal 200mm stroke up to 10mm. The rear adjuster acts purely as a mechanical stop to fine-tune the retract position and is not a load-holding lock.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX200-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX200-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 200 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 SAIJ125AX200-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×200 | 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 SAIJ125AX200-10S Is Used
Machine Changeover
Dial in the exact 190-200mm retract position during product size changes without replacing the entire cylinder assembly.
Heavy Material Handling
Leverage the 6136N push force at 0.5MPa to move heavy pallets or fixtures, using the rear stop to fine-tune the drop-off point.
Assembly Line Tuning
Use the CMSE and DMSE compatible sensors alongside the 10mm stroke adjuster to perfectly time part insertion depths at commissioning.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX200-10S the Right Cylinder?
Select this 125mm bore when 100mm (3927N at 0.5MPa) lacks the force for high-inertia loads, but 160mm (10053N) would be excessive overkill. The 10mm adjustment window is ideal for product changeovers, letting you tune the retract end-position without swapping cylinders or adding external stops. For applications requiring position holding without live air pressure, consider the SAIL or BSAI series, as the SAIJ adjuster only stops travel.
When replacing an ISO 15552 cylinder, match the 125mm bore, 200mm stroke, PT port type, and the -S magnet requirement. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Since the stroke is under 300mm, side-load concerns are minimal, but long unsupported loads should still use an external guide.
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 SAIJ125AX200-10S FAQ
At 0.5MPa it provides 6136N push and 5734N pull force. The operating speed range for this 125mm bore cylinder is 30-500mm/s.
The rear adjuster acts as a mechanical stop, allowing you to shorten the 200mm nominal stroke within a 190-200mm window. It only sets the travel end and does not lock or hold the load without live air pressure.
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