Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-30
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-30 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 SAIJ160AX550-30
The AirTAC SAIJ160X550-30 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications, featuring a 160 mm bore and a 550 mm stroke. An integrated rear adjusting screw allows you to fine-tune the effective travel, providing a usable stroke window of 520 to 550 mm. This adjustability enables precise end-position calibration at commissioning without swapping out the cylinder or fabricating external stop blocks. Delivering a robust 14074 N of push force at 0.7 MPa, it handles substantial loads with ease.
This model incorporates a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Operating at speeds of 30-500 mm/s, it utilizes adjustable air cushions at both ends to decelerate the heavy 40 mm diameter rod smoothly. The rear stopper mechanism sets the travel limit but does not lock the load; for position holding without live air pressure, consider an external rod lock or the AirTAC SAIL series.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-30 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-30 |
|---|---|
| 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 SAIJ160AX550-30
| 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 SAIJ160AX550-30 Is Used
Heavy Machinery Setup
Fine-tune the 520-550 mm stroke during heavy equipment commissioning to achieve exact mechanical positioning without machining custom spacers.
Product Size Changeover
Adapt automated lines to different product lengths by quickly adjusting the rear stopper, minimizing downtime between production runs.
Large Assembly Presses
Leverage the 14074 N push force at 0.7 MPa to drive large components together while dialing in the exact end-of-stroke contact pressure.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-30 the Right Cylinder?
Selecting the SAIJ160X550-30 is ideal when a machine design requires a 520 to 550 mm travel window that can be dialed in during setup or product changeover, avoiding the rigid constraints of a fixed-stroke SAI cylinder. If the 10053 N push force at 0.5 MPa from a 160 mm bore is insufficient, stepping up to a 200 mm bore yields 15708 N at the same pressure. Conversely, if the load is lighter, dropping to a 125 mm bore provides 6136 N at 0.5 MPa.
Because the 550 mm stroke is substantial, the 40 mm rod and M36x2 thread provide necessary rigidity, but an external guide is strongly recommended to prevent excessive side-loading on the piston. This cylinder uses PT tapered ports and supports a specific mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2. It is dimensionally interchangeable per ISO 15552 standards. Note that this configuration does not include a magnet (-S); adding one would allow the use of AirTAC CMSE reed or DMSE electronic solid-state sensors.
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 SAIJ160AX550-30 FAQ
The rear adjuster acts as a mechanical stop that trims the stroke back by up to 30 mm, creating a usable travel window of 520 to 550 mm. It sets the end position and works with the air cushions to decelerate the load, but it does not lock the load without live air pressure.
At an operating pressure of 0.7 MPa, this 160 mm bore cylinder generates a push force of 14074 N and a pull force of 9425 N. The maximum push force reaches 18095 N at 0.9 MPa.
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