Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-75S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-75S 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 SAIJ160AX550-75S
The AirTAC SAIJ160X550-75-S is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty applications. It features a rear-mounted adjusting screw that allows you to trim the effective stroke, providing a usable travel window of 475 to 550 mm for precise end-position tuning. Equipped with a SUS420J2 stainless steel rod (code A) and a built-in magnet (-S), it delivers a robust push force of 18095 N at 0.9 MPa.
This extruded aluminum barrel design includes sensor grooves on both sides, directly supporting AirTAC CMSE reed and DMSE electronic solid-state switches. The PT tapered port threads ensure a tight, leak-free pneumatic connection, while the 50 mm variable air cushions at both ends manage deceleration. The rear stopper sets the travel end but does not hold the load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-75S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-75S |
|---|---|
| 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 SAIJ160AX550-75S
| 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 SAIJ160AX550-75S Is Used
Heavy Press Tuning
Fine-tune the 475-550 mm travel window during commissioning to perfectly seat large components without repositioning the entire press fixture.
Product Changeover
Quickly adjust the rear stopper by up to 75 mm to accommodate different pallet sizes on an automated line, minimizing downtime between runs.
Large Assembly Positioning
Leverage the 18095 N push force at 0.9 MPa to move heavy machinery sub-assemblies into place, relying on the rear screw for exact final positioning.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-75S the Right Cylinder?
Choose this 160 mm bore when an 80 mm bore (yielding 4523 N push at 0.9 MPa) cannot meet your thrust requirements, but before stepping up to a massive 200 mm bore. The 75 mm adjustment range is ideal for product changeovers, allowing you to dial in the exact end-stop without swapping the cylinder or adding external stops. For load-holding without continuous air pressure, you must integrate an external rod lock or look at the SAIL or BSAI series, as the SAIJ adjuster is strictly a travel stop.
Because this model features a 550 mm stroke, the 40 mm diameter rod and M36x2 thread provide substantial rigidity, but an external guide is highly recommended to prevent excessive side-loading on the piston. It uses the standard SAIJ mounting subset (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR mounts. To replace an ISO 15552 cylinder, match the 160 mm bore, 550 mm stroke, 75 mm adjuster, PT G3/4 port, and -S magnet.
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 SAIJ160AX550-75S FAQ
At 0.9 MPa operating pressure, this 160 mm bore cylinder provides a push force of 18095 N and a pull force of 9425 N. At 0.5 MPa, the push force is 10053 N.
The rear adjuster acts as a mechanical stop, allowing you to shorten the 550 mm nominal stroke by up to 75 mm, creating a usable travel window of 475 to 550 mm. It only sets the end position and does not lock the load without live air pressure.
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