Airtac SAIJ160 Adjustable Cylinder SAIJ160BX650-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX650-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 650mm 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
- Stroke650 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX650-20S
The AirTAC SAIJ160X650-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel within a 630 to 650 mm window. It delivers a robust 10053 N of push force at 0.5 MPa, scaling up to 18095 N at 0.9 MPa, making it ideal for heavy-duty positioning tasks.
This specific SKU includes a SUS304 stainless steel rod for superior corrosion resistance and a PT tapered port thread. The extruded aluminum barrel integrates sensor grooves on both sides, and because this is a magnet-equipped -S model, it directly supports AirTAC CMSE reed and DMSE electronic solid-state switches for precise end-of-stroke detection.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX650-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX650-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 650 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 SAIJ160BX650-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×650 | 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 SAIJ160BX650-20S Is Used
Heavy Press Positioning
Dial in the exact 630-650 mm end-stop during initial commissioning of a large press to accommodate varying material thicknesses without external shims.
Product Size Changeover
Quickly adjust the retract distance on an automated assembly line when switching between different product sizes, minimizing machine downtime.
Long-Stroke Diverting
Actuate a heavy diverter arm on a conveyor system, using the stainless rod and adjustable stop to handle varying pallet widths in washdown environments.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX650-20S the Right Cylinder?
Selecting this 160 mm bore over a smaller 125 mm unit jumps the thrust from 6136 N to 10053 N at 0.5 MPa, giving you the extra power needed for high-inertia loads. The 20 mm rear adjuster is chosen when you need to dial in the exact retract position during machine setup or product changeover without adding external stopper blocks. For load-holding without live air pressure, note that the rear adjuster is a travel stop, not a lock; you would need an SAIL or BSAI cylinder instead.
As a true ISO 15552 cylinder, it is dimensionally interchangeable with ISO 15552 cylinders from other manufacturers. To match this exact configuration, specify: 160 mm bore, 650 mm stroke, 20 mm adjustment, PT ports, and a -S magnet. Because the 650 mm stroke is long, the 40 mm rod and M36x2 thread will still experience deflection under high side loads, so an external guide rail is strongly recommended to prevent premature seal wear.
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 SAIJ160BX650-20S FAQ
At 0.5 MPa operating pressure, it provides 10053 N of push force and 9425 N of pull force. At 0.9 MPa, the push force increases to 18095 N.
The rear adjuster screw lets you shorten the nominal 650 mm stroke by up to 20 mm, creating a usable travel window of 630 to 650 mm. It acts as a physical stop to fine-tune the end position and does not lock the load without live air.
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