Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 250mm 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
- Stroke250 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-20S
The AirTAC SAIJ160X250-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that lets you dial back the nominal 250 mm travel by up to 20 mm. This creates a precise 230-250 mm usable window, allowing you to fine-tune the retract end position at commissioning without swapping the barrel or adding external stops. It delivers a robust 10053 N pull force at 0.5 MPa, making it suitable for heavy-duty handling.
This SKU is configured with a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing with CMSE reed or DMSE electronic switches. The extruded aluminum barrel incorporates sensor grooves on both sides. It uses PT tapered ports sized G3/4, and the generous 40 mm cushion stroke at both ends ensures smooth deceleration of high kinetic energy loads.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 250 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 SAIJ160BX250-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×250 | 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 SAIJ160BX250-20S Is Used
Machine Setup & Changeover
Dial in the exact 230-250 mm retract position during product size changes without machining new hard stops or replacing the cylinder.
Heavy Material Handling
Leverage the 10053 N pull force to shift heavy pallets or chassis, relying on the 40 mm air cushions to decelerate the massive load safely.
Washdown Positioning
Utilize the SUS304 stainless steel rod for corrosion resistance in humid or washdown environments while tracking position via DMSE electronic sensors.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-20S the Right Cylinder?
Choose this 160 mm bore when you need substantial thrust—10053 N pull or 14074 N push at 0.7 MPa—and a variable end-stop for product changeovers. If your application requires less force, stepping down to the 125 mm bore yields 5734 N pull at 0.5 MPa, while moving up to the 200 mm bore provides 15080 N pull. The integrated rear adjuster acts solely as a travel stop to set the retract position; it does not hold the load dynamically. For true fail-safe load holding without live air pressure, select the SAIL pneumatic lock or BSAI clamp-lock cylinder instead.
When replacing an ISO 15552 cylinder, verify the 160 mm bore, 250 mm stroke, 20 mm adjustment range, G3/4 PT ports, and the required mounting accessory from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 250 mm stroke is relatively long for this large bore, external guide rails are recommended to prevent excessive side-loading on the piston rod.
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 SAIJ160BX250-20S FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 20 mm, providing a usable travel window of 230 to 250 mm. It functions purely as a mechanical stop to set the end position and does not lock or hold the load without continuous air pressure.
At a 0.5 MPa operating pressure, it generates 10053 N of pull force and 14074 N of push force. The maximum thrust is 2050 kgf at 1.0 MPa.
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