Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-30
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 125mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ160 mm
- Stroke125 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-30
The AirTAC SAIJ160X125-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 95 to 125 mm, allowing you to dial back the nominal 125 mm stroke by up to 30 mm during commissioning. The extruded aluminum barrel includes sensor grooves on both sides, and the robust 40 mm carbon steel rod with an M36x2 thread handles high side loads effectively.
Delivering 10053 N of push force at 0.5 MPa, this bore size is built for heavy-duty positioning. The rear adjuster acts purely as a mechanical stop to fine-tune the end position without adding external stops, while the integrated air cushions handle deceleration. It is important to note that neither the adjuster nor the cushions will hold a load without live air pressure; for fail-safe load holding, consider the SAIL or BSAI series.
Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-30 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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, 50 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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×125 | 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 SAIJ160 Adjustable Cylinder SAIJ160X125-30 Is Used
Stroke Tuning for Heavy Jigs
Dial in the exact end-of-stroke position for heavy machining jigs, trimming up to 30 mm to accommodate varying workpiece sizes without changing the cylinder.
Product Changeover Stops
Adjust the retract position on the fly during packaging line product transitions, using the rear stopper to set new end points rapidly.
Assembly Press Positioning
Set precise lower-end stops for assembly presses, leveraging the 10053 N push force at 0.5 MPa to seat components accurately.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-30 the Right Cylinder?
Choose this 160 mm bore when a 125 mm standard stroke is marginally too long and requires field adjustment, stepping up from the 125 mm bore which offers 6136 N push force at 0.5 MPa. The adjustable window is perfect for product-size changeovers on a packaging line, negating the need to physically swap cylinders or bolt on external stopper blocks. To match this ISO 15552 replacement exactly, specify the 160 mm bore, 125 mm stroke, 30 mm adjustment, PT tapered port threads, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting set. Because the stroke is 125 mm, an external guide is not strictly required, but the 40 mm rod diameter provides excellent resistance to bending when subjected to offset loads.
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 SAIJ160 Adjustable Cylinder SAIJ160X125-30 FAQ
At 0.5 MPa operating pressure, this 160 mm bore cylinder generates 10053 N of push force and 9425 N of pull force. It can reach up to 18095 N push at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop, letting you shorten the effective travel from the 125 mm nominal stroke down to 95 mm. It sets the end position but does not lock the load without continuous air pressure.
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