Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-50
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 550mm 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
- Stroke550 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-50
The AirTAC SAIJ160X550-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a usable travel window of 500 to 550 mm, allowing you to dial back the nominal 550 mm stroke by up to 50 mm during machine setup. This 160 mm bore generates a robust 9425 N pull force at 0.5 MPa, making it ideal for heavy-duty positioning tasks.
Unlike fixed-stroke actuators, this model lets you fine-tune the retract end position at commissioning without adding bulky external stops. The extruded aluminum barrel features sensor grooves on both sides, and the piston rod uses a SUS304 stainless steel material for superior corrosion resistance. The rear adjuster acts purely as a mechanical stop to set the travel end and does not lock the load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-50 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 550 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 SAIJ160BX550-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×550 | 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 SAIJ160BX550-50 Is Used
Heavy Machinery Changeover
Dial in the 500-550 mm travel window precisely when switching between heavy product sizes on automated assembly lines.
Precision End-Stop Tuning
Use the rear adjuster to fine-tune the retract position during commissioning without swapping out the entire actuator.
Long-Stroke Guiding
Leverage the 14074 N push force at 0.7 MPa for heavy pressing while relying on external guides to manage the 550 mm stroke.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-50 the Right Cylinder?
Select this 160 mm bore actuator when your application requires high thrust forces, delivering 14074 N push at 0.7 MPa. If you need less force, stepping down to a 125 mm bore yields 5734 N of pull at 0.5 MPa. The adjustable stroke is highly beneficial for product changeovers, letting you shift the end-stop quickly. Because the 550 mm stroke is substantial, always use an external guide to prevent side-load damage to the M36x2 rod thread.
To match this ISO 15552 cylinder for a replacement, verify the 160 mm bore, 550 mm stroke, 50 mm adjustment range, PT tapered G3/4 port thread, and standard mounting options. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. Note that this actuator does not hold position unpowered; for load-holding without live air, consider the SAIL or BSAI series.
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 SAIJ160BX550-50 FAQ
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 0.7 MPa, the push force increases to 14074 N.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective stroke from 550 mm down to 500 mm. This creates a 500-550 mm usable travel window for fine-tuning the end position without moving the cylinder.
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