Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-40S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-40S 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 SAIJ160BX550-40S
The AirTAC SAIJ160X550-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 550 mm travel by up to 40 mm. This creates a precise 510-550 mm usable window for fine-tuning end positions at commissioning without swapping out the unit. It delivers robust thrust, generating 10053 N of pull force at 0.5 MPa and 14074 N of push force at 0.7 MPa.
This variant features a SUS304 stainless steel rod for corrosion resistance and includes a magnet for CMSE and DMSE sensor integration. The extruded aluminum barrel carries sensor grooves on both sides. Operating speed spans 30-500 mm/s, and the rear adjuster functions purely as a mechanical stop for deceleration, not a load-holding lock.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-40S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-40S |
|---|---|
| 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 SAIJ160BX550-40S
| 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 SAIJ160BX550-40S Is Used
Heavy-Duty Machine Setup
Dial in the exact 510-550 mm end position during equipment commissioning to accommodate varying workpiece sizes without adding external mechanical stops.
Product Line Changeover
Quickly adjust the retract end-position by up to 40 mm when switching the production line to a new product format, minimizing downtime.
Variable End-Stop Actuation
Provide a customizable physical stop for heavy pallets or transfer carriages, using the 10053 N pull force to index materials reliably.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-40S the Right Cylinder?
Choose this 160 mm bore when an application requires higher force than the 125 mm class (which provides 5734 N pull at 0.5 MPa) but does not need the massive 15080 N pull of the 200 mm series. The 40 mm adjustable end-stop is ideal for machine setups requiring variable end positions during product changeovers, offering flexibility a fixed-stroke SAI cannot match. Because the stroke is 550 mm, the 40 mm rod diameter and M36x2 thread will carry significant side loads, but an external guide is recommended to prevent rod binding over this long travel distance.
For an exact ISO 15552 replacement match, verify the 160 mm bore, 550 mm stroke, 40 mm adjustment, PT tapered G3/4 port, and the -S magnet. Mounting options are limited to the reduced SAIJ set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). If the machine requires true load-holding without live air pressure, use an SAIL air-released lock or BSAI clamp-lock instead of relying on this cylinder's adjuster.
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 SAIJ160BX550-40S FAQ
At 0.5 MPa operating pressure, this 160 mm bore cylinder provides 10053 N of pull force and 14074 N of push force at 0.7 MPa. The maximum operating pressure is 1.0 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from the nominal 550 mm down to as little as 510 mm. It sets the travel end and deceleration point but does not lock or hold the load without continuous air pressure.
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