Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-75S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-75S 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 SAIJ160BX400-75S
The AirTAC SAIJ160X400-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. By dialing the stopper screw, you achieve a precise 325-400 mm usable travel window from the 400 mm nominal stroke without swapping hardware. Equipped with a SUS304 stainless steel rod and PT tapered ports, it delivers 14074 N of push force at 0.7 MPa, making it suitable for heavy-duty positioning.
This model includes a magnet for CMSE reed and DMSE electronic sensors, which seat cleanly into the extruded aluminum barrel's dual sensor grooves. The rear adjuster acts strictly as a travel stop for end-position tuning during commissioning; it does not lock the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-75S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-75S |
|---|---|
| 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 SAIJ160BX400-75S
| 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 SAIJ160BX400-75S Is Used
Heavy Press Tuning
Dial in the exact 325-400 mm travel window during heavy press commissioning to accommodate varying material thicknesses without external spacers.
Product Changeover Stops
Adjust the retract stopper on the fly during packaging line changeovers to handle different package lengths quickly and safely.
Variable End Positioning
Set precise end-of-stroke limits for heavy-load actuators where fixed cylinders would require disassembly to alter the travel distance.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-75S the Right Cylinder?
Choose this 160 mm bore when a 125 mm bore (8590 N push at 0.5 MPa) is insufficient, but a 200 mm bore (15708 N push at 0.5 MPa) is oversized. The 75 mm adjustment range is ideal for product changeovers on a line, letting operators fine-tune the retract end-position on the fly rather than machining external stops or reverting to a fixed-stroke SAI cylinder.
When matching ISO 15552 interchangeability, specify the 160 mm bore, 400 mm stroke, 75 mm adjustment, PT port threads, and the -S magnet. Because the 400 mm stroke is substantial, the 40 mm rod and M36x2 thread provide rigidity, but an external guide rail is still recommended to manage side loads and prevent rod deflection.
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 SAIJ160BX400-75S FAQ
At 0.7 MPa operating pressure, this 160 mm bore cylinder provides 14074 N of push force and 13274 N of pull force. It can deliver a maximum of 2050 kgf at 1.0 MPa.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from 400 mm down to 325 mm. This stopper only sets the travel end and does not hold the load without live air pressure.
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