Airtac SAIJ160 Adjustable Cylinder SAIJ160BX25-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX25-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 25mm 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
- Stroke25 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX25-20S
The AirTAC SAIJ160X25-20-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a robust 14074N push force at 0.7 MPa, making it suitable for heavy-duty operations. The integrated rear stopper allows you to trim the effective travel down by up to 20 mm, creating a precise 5-25 mm usable travel window for exact end-position tuning without adding external stops.
This variant includes a SUS304 stainless steel rod for corrosion resistance and a magnet for CMSE and DMSE sensors. It uses PT tapered ports and reaches speeds of 30-500 mm/s. The rear adjuster acts solely as a travel stop and does not hold the load without live air pressure; for load-holding, consider the SAIL or BSAI series.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX25-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX25-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 25 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 SAIJ160BX25-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×25 | 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 SAIJ160BX25-20S Is Used
Heavy Press Tuning
Dial in the exact 5-25 mm travel during product changeover to ensure heavy pressing operations hit the correct depth without external mechanical stops.
Machine Setup
Fine-tune the retract end-stop at commissioning to perfectly seat large components, leveraging the 14074N push force at 0.7 MPa.
Variable End-Stop Positioning
Adjust the rear stopper on the fly for different product sizes on the line, using the built-in 20 mm adjustment window instead of modifying the machine frame.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX25-20S the Right Cylinder?
Choose this 160 mm bore when the 100 mm bore (offering 5497N push at 0.7 MPa) is insufficient for your heavy loads. An adjustable stroke is ideal for machine setup and changeover, letting you fine-tune the retract end-position at commissioning rather than swapping a fixed-stroke SAI cylinder. To replace an ISO 15552 cylinder, match the 160 mm bore, 25 mm stroke, 20 mm adjustment, PT G3/4 port, and SUS304 rod. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ160BX25-20S FAQ
At 0.7 MPa operating pressure, this 160 mm bore cylinder delivers a push force of 14074N and a pull force of 9425N. It can reach a maximum push force of 18095N at 0.9 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the 25 mm nominal stroke by up to 20 mm. This provides a usable travel window of 5-25 mm, allowing precise end-position tuning at commissioning. The adjuster is a stop, not a lock, so it will not hold the load without live air.
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