Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-20S
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX125-20S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ160 mm
- Stroke125 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-20S
The AirTAC SAIJ160X125-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window down to 105 mm from the nominal 125 mm without adding external stops. It delivers substantial thrust, pushing 14074 N and pulling 9425 N at 0.7 MPa, making it suitable for heavy-duty positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides, and this -S variant includes a magnet for non-contact detection.
This model uses a robust 40 mm SUS304 stainless steel rod with an M36x2 thread, offering high corrosion resistance and excellent side-load capacity. The rear adjustment screw acts purely as a travel stop to set the retract end position during commissioning; it does not lock or hold the load without live air pressure. For applications requiring true load holding on loss of pressure, consider the SAIL or BSAI series instead.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-20S |
|---|---|
| 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 | 9425 N | 9425 N |
| 0.7 MPa | 13195 N | — |
| Max (@1.0 MPa) | 1922 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-20S
| 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 SAIJ160BX125-20S Is Used
Heavy Press Fit Tuning
Dial in the exact 105-125 mm insertion depth for heavy press-fit assemblies, allowing precise end-position tuning during machine commissioning without changing hardware.
Product Size Changeover
Adapt a heavy-duty conveyor diverter to varying package lengths by adjusting the retract stop up to 20 mm, ensuring accurate positioning across different product runs.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-20S the Right Cylinder?
The adjustable stroke is ideal for product changeovers on a line, letting you dial in the exact end-of-stroke position within a 105-125 mm window without physically swapping the cylinder. It operates efficiently at speeds between 30-500 mm/s.
When replacing an ISO 15552 cylinder, match the 160 mm bore, 125 mm nominal stroke, 20 mm adjustment range, PT tapered port threads, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Because the 40 mm stainless steel rod is substantial, it handles high side loads well, but even with variable air cushions at both ends, long unsupported strokes still require an external guide to prevent premature wear.
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 SAIJ160BX125-20S FAQ
The maximum force at 1.0 MPa is 2050 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the nominal 125 mm stroke by up to 20 mm, creating a usable travel window of 105-125 mm. It only sets the end position and does not hold the load without live air pressure.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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