Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-40S
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX125-40S 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 SAIJ160BX125-40S
The AirTAC SAIJ160X125-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 85 to 125 mm. The extruded aluminum barrel features sensor grooves on both sides, and this -S model includes a magnet for use with AirTAC CMSE reed and DMSE electronic solid-state switches.
This specific SKU features a SUS304 stainless steel rod (code B) and PT tapered port threads. The rear adjuster acts as a mechanical stop to fine-tune the end position during commissioning without adding external stops. Remember that the adjuster and the variable air cushions only decelerate the load; they do not function as a lock. For load-holding without live air pressure, consider an AirTAC SAIL or BSAI cylinder.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-40S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-40S |
|---|---|
| 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 SAIJ160BX125-40S
| 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 SAIJ160BX125-40S Is Used
Heavy Press Tuning
Dial in the exact 85 to 125 mm end-stop during heavy press setup to accommodate varying material thicknesses without swapping out the entire cylinder.
Line Changeover
Adjust the retract position on the fly during production line changeovers, using the rear stopper to quickly match new product dimensions.
Sensor Integration
Leverage the built-in magnet and dual sensor grooves to mount CMSE or DMSE switches for precise end-of-stroke signaling in automated assembly.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-40S the Right Cylinder?
Choose the adjustable-stroke SAIJ over a fixed-stroke SAI when you need rapid product-size changeovers or precise end-position tuning at machine setup. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
To replace an ISO 15552 cylinder, match the 160 mm bore, 125 mm nominal stroke, 40 mm adjustment range, PT G3/4 port, and the -S magnet. Because the 40 mm rod is robust, it handles higher side loads, but any stroke of 300 mm or more on a larger bore still requires an external guide 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 SAIJ160 Adjustable Cylinder SAIJ160BX125-40S FAQ
At 0.7 MPa, the push force increases to 14074 N.
The rear adjuster acts as a mechanical stop that allows you to trim the effective travel down from the 125 mm nominal stroke, providing a usable adjustment window of 85 to 125 mm. It only sets the travel end and does not lock the load without live air pressure.
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Standard models are processed and dispatched in 3-5 business days.
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