Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-50S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-50S 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 SAIJ160AX550-50S
The AirTAC SAIJ160X550-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling you to fine-tune the retract end-position during commissioning. It provides a usable travel window of 500 to 550 mm, letting you trim up to 50 mm off the nominal stroke without adding external stops. As a large-bore actuator, it delivers a robust 14074 N push force at 0.7 MPa, making it suitable for heavy-duty pressing and handling.
This variant features an SUS420J2 stainless steel rod for enhanced durability against surface wear and includes a magnet (-S) for position sensing with AirTAC CMSE reed or DMSE electronic switches. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible switch mounting. It uses a PT tapered G3/4 port and offers variable air cushions at both ends to decelerate heavy 160 mm loads over a 50 mm cushioning length.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-50S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-50S |
|---|---|
| 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 SAIJ160AX550-50S
| 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 SAIJ160AX550-50S Is Used
Heavy Pressing Operations
Delivers 14074 N of thrust at 0.7 MPa for assembly presses, with the 50 mm rear adjuster allowing precise tuning of the final pressing depth.
Machine Changeover
Quickly adapt the 500-550 mm travel window during product size transitions on a manufacturing line without replacing the actuator.
Automated Material Handling
Shifts heavy payloads reliably using the 40 mm rod and SUS420J2 stainless steel construction, with DMSE electronic sensors tracking position.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-50S the Right Cylinder?
Select this 160 mm bore actuator when an application requires substantial thrust, such as 14074 N at 0.7 MPa, alongside precise end-stop tuning. If your process needs less force, stepping down to a 100 mm bore yields 5497 N at 0.7 MPa, whereas moving up to a 200 mm bore provides 21991 N. The adjustable stroke is ideal for product changeovers on a line, allowing you to dial in the exact 500-550 mm travel without physically swapping the cylinder.
Because the 550 mm stroke is substantial, the 40 mm rod diameter requires an external guide to prevent side-loading damage on the piston. Remember that the rear adjuster and air cushions function only as travel stops and deceleration devices; they do not hold the load without live air pressure. For fail-safe load holding, consider the AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder. This SAIJ model uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable per ISO 15552.
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 SAIJ160AX550-50S FAQ
At 0.7 MPa operating pressure, this 160 mm bore cylinder provides a push force of 14074 N and a pull force of 9425 N. It can reach a maximum push force of 18095 N at 0.9 MPa.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective stroke from the nominal 550 mm down to 500 mm. This adjuster is a travel stop, not a lock, so it cannot hold the load without live air pressure.
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