Airtac SAIJ160 Adjustable Cylinder SAIJ160AX55-50
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX55-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 55mm 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
- Stroke55 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX55-50
The AirTAC SAIJ160X55-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 5 to 55 mm, allowing you to dial back the nominal 55 mm stroke by up to 50 mm during commissioning without adding external stops. This 160 mm bore size generates a substantial 14074 N of push force at 0.7 MPa, making it well-suited for heavy-duty positioning tasks.
This variant is configured with a SUS420J2 stainless steel rod (material code A) for improved corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU omits the magnet for position detection. The rear adjustment screw functions purely as a travel stop to fine-tune the end position and relies on the integrated air cushions for deceleration; it does not lock or hold the load without continuous air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX55-50 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX55-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 55 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 SAIJ160AX55-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×55 | 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 SAIJ160AX55-50 Is Used
Variable End-Stop Positioning
Ideal for heavy presses or lifts where the exact bottom position must be tuned on the fly, using the 50 mm adjuster to dial in the perfect 5 to 55 mm travel window during setup.
Product Line Changeovers
Quickly adapt a heavy-duty machine to new part dimensions by adjusting the cylinder's effective stroke rear stop, eliminating the need to physically swap out the entire cylinder.
Heavy Clamping Force Tuning
Leverages the 160 mm bore to deliver up to 18095 N of push force at 0.9 MPa, with the adjustable end-stop ensuring parts are clamped precisely without over-traveling.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX55-50 the Right Cylinder?
Selecting this 160 mm bore model makes sense when your application requires the 10053 N push force available at 0.5 MPa, or up to 18095 N at 0.9 MPa, combined with highly variable end-position tuning. If your setup only needs the 6136 N push force at 0.5 MPa provided by a 125 mm bore, stepping down saves space and air consumption. Conversely, if you require maximum thrust, the 200 mm bore offers 21991 N at 0.7 MPa. The adjustable stroke is ideal for product changeovers, letting you shift the end-stop dynamically rather than swapping a fixed-stroke SAI cylinder.
Because the usable stroke is quite short (5 to 55 mm) and the adjustment range is large, side-load risks are lower than with long strokes, but you should still guide heavy loads to protect the 40 mm rod and M36x2 thread. Remember that the rear adjuster is a stop, not a lock; if you need to hold a load mechanically without live air pressure, look to the SAIL (air-released lock) or BSAI (clamp-lock) series. This SAIJ model uses PT ports, a G3/4 thread size, and supports the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) for ISO 15552 interchangeability.
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 SAIJ160AX55-50 FAQ
The rear adjuster acts as an external stopper that mechanically limits the piston's return, allowing you to shorten the effective stroke from its 55 mm nominal length down to as little as 5 mm. It sets the travel end and works with the air cushions for deceleration, but it does not lock the load without live air pressure.
At a 0.5 MPa operating pressure, it provides 10053 N of push force and 9425 N of pull force. At 0.7 MPa, the push force increases to 14074 N, and it can reach a maximum push force of 2050 kgf (approximately 20104 N) at 1.0 MPa.
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