Airtac SAIJ160 Adjustable Cylinder SAIJ160BX40-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX40-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 40mm 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
- Stroke40 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX40-20S
The AirTAC SAIJ160X40-20-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 20 to 40 mm, allowing you to dial back the 40 mm nominal stroke by up to 20 mm during machine commissioning. In this bore size, it generates a substantial push force of 10053 N and a pull force of 9425 N at 0.5 MPa, making it suitable for heavy-duty positioning tasks.
This SKU is built with a SUS304 stainless steel rod for superior corrosion resistance and includes a piston magnet for position sensing. The integrated magnet is fully compatible with AirTAC CMSE reed and DMSE electronic sensors mounted in the extruded aluminum barrel grooves. It utilizes PT tapered ports and operates at speeds between 30 and 500 mm/s.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX40-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX40-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 40 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 SAIJ160BX40-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×40 | 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 SAIJ160BX40-20S Is Used
Heavy Press Tuning
Fine-tune the exact bottoming position of a heavy press during setup. The 20-40 mm travel window lets you adjust the stroke without swapping cylinders or machining external stopper blocks.
Product Changeover
Adapt automated machinery quickly when product sizes change. The rear stopper allows operators to shorten the cylinder stroke by up to 20 mm on the fly, reducing changeover time.
Corrosive Assembly Lines
Drive heavy actuators in washdown or corrosive environments. The SUS304 stainless steel rod and high 10053 N push force handle demanding industrial assembly tasks reliably.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX40-20S the Right Cylinder?
Choose this 160 mm bore when you need high thrust in a compact footprint but require fine-tuning of the end position without adding external stops. If you need less force, stepping down to the 125 mm bore yields 6136 N of push force at 0.5 MPa, which may suffice for lighter loads. Remember that the rear adjuster acts only as a travel stop to decelerate the piston; it does not lock the load. For applications requiring true position holding without live air pressure, consider the SAIL or BSAI series instead.
As a dimensionally interchangeable ISO 15552 cylinder, this model matches standard mounting footprints but uses a reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. To replace a unit, verify the 160 mm bore, 40 mm stroke, 20 mm adjustment range, PT G3/4 port, and the -S magnet requirement.
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 SAIJ160BX40-20S FAQ
At 0.5 MPa operating pressure, this 160 mm bore cylinder provides a push force of 10053 N and a pull force of 9425 N. At the maximum operating pressure of 1.0 MPa, it can deliver up to 2050 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 40 mm nominal stroke by up to 20 mm, providing an effective travel window of 20 to 40 mm. The adjuster and air cushions only decelerate the piston at the end of travel; they do not lock the load without live air.
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