Airtac SAIJ160 Adjustable Cylinder SAIJ160BX20-20
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX20-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 20mm 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
- Stroke20 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX20-20
The AirTAC SAIJ160X20-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 0-20 mm usable travel window for precise end-position tuning. Built with a 160 mm bore, it provides 10053 N of pull force at 0.5 MPa and 18095 N of push force at 0.9 MPa, making it suitable for heavy-duty positioning tasks. This configuration includes a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threading.
The rear adjustment screw acts as a mechanical stop to fine-tune the retract end without adding external stops or swapping the cylinder. It is vital to note that this adjuster and the variable air cushions only decelerate the travel end; they do not hold the load without live air pressure. For applications requiring position holding without continuous pneumatic pressure, an external pilot-operated check valve or an AirTAC SAIL locking cylinder is required.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX20-20 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX20-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 20 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 SAIJ160BX20-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×20 | 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 SAIJ160BX20-20 Is Used
Heavy-Duty Press Fitting
Dial in the exact 0-20 mm travel window during press-fitting operations to accommodate material thickness variations without reprogramming the machine.
Product Changeover Setup
Quickly adjust the retract end-stop on packaging lines when switching between different product sizes, using the rear screw to fine-tune the stroke on the fly.
Corrosive Environment Actuation
Leverage the SUS304 stainless steel rod for heavy clamping or positioning tasks in washdown or corrosive manufacturing environments requiring high force.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX20-20 the Right Cylinder?
Select this 160 mm bore cylinder when a compact 20 mm stroke requires exact end-position calibration, stepping up from a 125 mm bore that offers 5734 N of pull force at 0.5 MPa. The adjustable 0-20 mm travel window is ideal for machine setups where product changeovers demand variable end-stops without replacing the actuator. Because the stroke is under 300 mm, side-load risks are minimal, though the 40 mm rod diameter and M36x2 thread provide excellent structural rigidity.
When matching ISO 15552 dimensions, verify the 160 mm bore, 20 mm stroke, PT G3/4 port, and the absence of a magnet (no -S suffix). The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR configurations. If load-holding is required, select a SAIL or BSAI series cylinder instead of relying on the rear stopper.
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 SAIJ160BX20-20 FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to trim the nominal 20 mm stroke back by up to 20 mm, creating a 0-20 mm usable travel window. It sets the end position but does not lock or hold the load without live air pressure.
At an operating pressure of 0.5 MPa, this 160 mm bore cylinder provides 10053 N of push force and 9425 N of pull force. At 0.9 MPa, the push force increases to 18095 N.
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