Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-20
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-20 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 SAIJ160X125-20
The AirTAC SAIJ160X125-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window between 105 and 125 mm. Equipped with a robust 40 mm carbon steel rod and a PT G3/4 port, it delivers 10053 N of push force and 9425 N of pull force at 0.5 MPa. This makes it highly suitable for heavy-duty operations requiring substantial thrust and precise end-position calibration.
The external adjustment screw acts purely as a mechanical stop to shorten the stroke without swapping the cylinder or adding external stops. Unlike a locking cylinder, this adjuster does not hold the load without live air pressure. The extruded aluminum barrel includes sensor grooves on both sides, and since no magnet is specified, position sensing would require a separate external solution rather than embedded CMSE or DMSE switches.
Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-20 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-20 |
|---|---|
| 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 SAIJ160X125-20
| 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 SAIJ160X125-20 Is Used
Heavy Machinery Setup
Dial in the exact 105 to 125 mm end-stop during heavy equipment commissioning without physically remounting the cylinder.
Product Line Changeover
Quickly adapt the stroke length by up to 20 mm on a packaging line when transitioning between different sized heavy pallets.
Pressing Operations
Fine-tune the pressing depth of heavy components, utilizing the 10053 N thrust while relying on the stopper for final positioning.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-20 the Right Cylinder?
Choose this 160 mm bore model when your application demands heavy thrust up to 10053 N at 0.5 MPa, but you need the flexibility to dial back the stroke by up to 20 mm during machine setup or product changeover. If your force requirements are lower, stepping down to a 100 mm bore yields 3927 N of push force, significantly reducing footprint and air consumption.
Because the 125 mm stroke falls below the 300 mm threshold, a side-load guide is less critical than with longer strokes, though the substantial 40 mm rod thread still handles high compressive loads effectively. This adjustable design is preferred over a fixed-stroke SAI cylinder when commissioning requires variable end-stops. Remember that the rear adjuster and air cushions only decelerate the travel end; for true load-holding without live air, consider an AirTAC SAIL or BSAI series. This cylinder is dimensionally interchangeable per ISO 15552, using a PT G3/4 port and supporting Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ160X125-20 FAQ
At an operating pressure of 0.5 MPa, this 160 mm bore cylinder generates a push force of 10053 N and a pull force of 9425 N. It can deliver a maximum push force of 18095 N at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the nominal 125 mm stroke by up to 20 mm, creating a usable travel window of 105 to 125 mm. It sets the end position but does not lock or hold the load without continuous air pressure.
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