Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-20S 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 SAIJ160BX400-20S
The AirTAC SAIJ160X400-20-S is a double-acting ISO 15552 profile cylinder engineered for high-force applications, delivering a pull force of 9425N at 0.5MPa and 18095N at 0.9MPa. It features a robust 40mm carbon steel core integrated with a SUS304 stainless steel rod (option B) for superior corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet supports precise position detection using AirTAC CMSE reed or DMSE electronic solid-state switches.
This model provides a nominal 400mm stroke with a rear mechanical adjuster that allows you to fine-tune the retract end-position, creating a usable travel window of 380-400mm. This built-in adjustability eliminates the need to swap cylinders or add external stops during commissioning or product changeovers. The rear screw acts strictly as a travel stop to set the end position and does not lock the load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-20S |
|---|---|
| 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 SAIJ160BX400-20S
| 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 SAIJ160BX400-20S Is Used
Heavy Press Fine-Tuning
Dial in the exact 380-400mm retract position during heavy press commissioning without machining new external stopper blocks.
Product Size Changeover
Quickly adapt the cylinder's end-stop on automated packaging lines when switching between different large-format product dimensions.
High-Force Assembly Jigs
Leverage the 18095N pull force at 0.9MPa and SUS304 rod for robust, corrosion-resistant clamping in heavy industrial assembly jigs.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-20S the Right Cylinder?
Selecting this 160mm bore cylinder is appropriate when your application requires substantial thrust, such as the 10053N push force available at 0.5MPa. If your force requirements are lower, stepping down to a 125mm bore yields 6136N at 0.5MPa, while moving up to a 200mm bore provides 15708N. Because this SKU features a 400mm stroke, which exceeds the 300mm threshold, the 40mm rod diameter and M36x2 thread provide rigidity, but an external guide rail is strongly recommended to prevent excessive side-loading and premature seal wear.
The adjustable stroke is ideal for machinery that requires variable end-stops during setup or product size changes, offering a distinct advantage over fixed-stroke SAI cylinders. For holding loads securely without continuous air pressure, note that the SAIJ rear adjuster and air cushions function only as deceleration stops; you must integrate an external pilot-operated check valve or select an AirTAC SAIL (air-released lock) or BSAI (clamp-lock) cylinder. This model uses a PT tapered G3/4 port and supports the SAIJ mounting subset: 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 SAIJ160BX400-20S FAQ
At 0.9MPa operating pressure, this 160mm bore double-acting cylinder generates a push force of 18095N and a pull force of 9425N. The maximum thrust at 1.0MPa is 2050 kgf.
The rear adjuster screw allows you to shorten the effective stroke by up to 20mm, providing a usable travel window of 380-400mm. It acts as a mechanical stop to fine-tune the end position and does not function as a load-holding lock without live air pressure.
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