Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-75S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-75S 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 SAIJ160X125-75S
The AirTAC SAIJ160X125-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 125 mm stroke that can be dialed back by up to 75 mm, giving you a precise 50-125 mm usable travel window for exact end-position tuning. Belonging to the 160 mm bore class, it delivers heavy thrust up to 18095 N on the pull side at 0.9 MPa, making it suitable for high-force press operations.
This model includes a standard carbon steel piston rod and a built-in magnet (-S) for position sensing. The extruded aluminum barrel features sensor grooves on both sides, accepting AirTAC CMSE reed and DMSE electronic solid-state switches. Unlike fixed-stroke SAI units, this version allows you to fine-tune the retract end stop at commissioning without adding external physical stops.
Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-75S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-75S |
|---|---|
| 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 SAIJ160X125-75S
| 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 SAIJ160X125-75S Is Used
Press and Forming
Dial in the exact 50-125 mm travel window during machine commissioning to accommodate varying material thicknesses without swapping cylinders.
Product Changeover
Quickly fine-tune the retract end-stop on automated lines when switching between different product sizes and formats.
Heavy Assembly
Leverage the 18095 N pull force at 0.9 MPa for heavy-duty joining operations, using the rear screw to set precise clamping depth.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-75S the Right Cylinder?
Choose this 160 mm bore if your application requires substantial force, generating 14074 N of push thrust at 0.7 MPa. If your setup needs less force, stepping down to a 125 mm bore yields 11045 N at 0.9 MPa, while moving up to a 200 mm bore provides 28274 N at 0.9 MPa. The adjustable 50-125 mm travel window is ideal for product changeovers where the exact end position varies slightly.
Because the stroke is 125 mm, side-loading is less of a concern, but always ensure the load is guided to prevent rod binding. The rear adjuster acts strictly as a travel stop for deceleration, not a lock; it will not hold the load without live air pressure. For fail-safe load holding, consider the SAIL or BSAI series. This unit uses a PT tapered G3/4 port and supports 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 SAIJ160X125-75S FAQ
At 0.9 MPa, this 160 mm bore cylinder provides 18095 N of pull force and 14074 N of push force. It operates efficiently within a 30-500 mm/s speed range.
The rear adjuster screw lets you shorten the nominal 125 mm stroke by up to 75 mm, creating a 50-125 mm usable travel window. It functions as a physical stop to tune the end position, not a lock, meaning it will not hold the load without continuous air pressure.
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