Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-10 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 SAIJ125X200-10
The AirTAC SAIJ125X200-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel within a 190-200 mm window. Equipped with a 32 mm carbon steel rod and PT G1/2 ports, it delivers 6136 N of push thrust at 0.5 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
Because the rear stopper acts solely as a travel end-limit and not a lock, the cylinder requires live air pressure to maintain its position under load. For applications needing true load-holding without continuous air, consider the related SAIL or BSAI series. This model operates at speeds of 30-500 mm/s and uses variable air cushions at both ends to manage deceleration.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-10 |
|---|---|
| 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 SAIJ125X200-10
| 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 SAIJ125X200-10 Is Used
Machine Changeover
Quickly modify the retract end-position by up to 10 mm during product size transitions without disassembling the cylinder or repositioning external stopper blocks.
End-Stop Calibration
Dial in the exact 190-200 mm travel window during initial setup to compensate for mechanical wear or minor fixture misalignment on the production line.
Assembly Pressing
Utilize the 6136 N push force at 0.5 MPa for heavy pressing operations, relying on the rear adjuster to limit maximum travel and prevent overstroke damage.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-10 the Right Cylinder?
Choose this 125 mm bore when the 80 mm class is insufficient, as the 80 mm bore provides only 2513 N of push force at 0.5 MPa compared to this model's 6136 N. The 10 mm adjustable range is ideal for dialing in exact end-stops during machine commissioning without adding external physical stops. If you need a fixed travel length without the adjustment screw, the standard SAI series is the direct alternative.
To match this ISO 15552 footprint, verify your bore, 200 mm stroke, 10 mm adjustment, PT G1/2 ports, and mounting choice from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Since the 32 mm rod and M27x2 thread handle significant side loads, ensure your mounting configuration properly supports the rod to prevent binding.
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 SAIJ125X200-10 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 delivers 1251 kgf.
The rear adjusting screw acts as a mechanical stopper that shortens the nominal 200 mm stroke by up to 10 mm, giving an effective travel window of 190-200 mm. It sets the end-position but does not lock the load without live air pressure.
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