Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-50S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 400mm 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
- Stroke400 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-50S
The AirTAC SAIJ160X400-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down from the 400mm nominal stroke to a 350-400mm usable window. It delivers substantial thrust, pushing with 10053N and pulling with 9425N at 0.5 MPa. This bore uses a PT tapered G3/4 port and a robust 40mm piston rod.
Equipped with a SUS304 stainless steel rod (option B) and a -S magnet, this model supports AirTAC CMSE reed and DMSE electronic sensors via the dual-side sensor grooves on its extruded aluminum barrel. The rear adjuster acts purely as a mechanical stop for end-position tuning and does not hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-50S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 400 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 SAIJ160BX400-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×400 | 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 SAIJ160BX400-50S Is Used
Variable End-Stop Tuning
Dial the travel back by up to 50mm during commissioning to perfectly strike a workpiece without repositioning the entire cylinder mount.
Product Size Changeover
Quickly adapt a packaging line for different carton lengths by adjusting the rear stopper from 350 to 400mm of travel.
Heavy-Duty Pressing
Leverage 10053N of push force at 0.5 MPa for assembly operations, using the rear screw to set precise bottoming depth.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-50S the Right Cylinder?
Choose this 160mm bore when an 80mm bore (providing 2513N push at 0.5 MPa) is insufficient, but a massive 200mm bore is unnecessary. The adjustable 350-400mm travel window is ideal for machine setup and product changeover, allowing you to dial in the exact end-stop without swapping cylinders or adding external stops.
When replacing an ISO 15552 cylinder, match the 160mm bore, 400mm stroke, 50mm adjustment, PT G3/4 port, and -S magnet. Because the stroke is 400mm, the 40mm rod and M36x2 thread provide rigidity, but an external guide is recommended for long unsupported loads to prevent side-load damage. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ160BX400-50S FAQ
At 0.5 MPa operating pressure, this 160mm bore cylinder provides 10053N of push force and 9425N of pull force. It can reach up to 18095N push at 0.9 MPa.
The rear adjuster acts as a mechanical stop, allowing you to shorten the nominal 400mm stroke anywhere within a 350-400mm usable window. It is a travel stop, not a lock, and requires live air to hold the load.
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