Airtac SAIJ160 Adjustable Cylinder SAIJ160X155-50S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X155-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 155mm 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
- Stroke155 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160X155-50S
The AirTAC SAIJ160X155-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical stopper that allows you to shorten the effective travel. With a nominal 155 mm stroke and a 50 mm adjustment range, you gain a usable travel window of 105 to 155 mm to perfectly dial in end positions during machine commissioning. This 160 mm bore size provides massive thrust, generating 14074 N of push force at 0.7 MPa.
Because this configuration includes the -S magnet option, it directly supports AirTAC CMSE reed and DMSE solid-state electronic sensors housed within the dual-side sensor grooves of the extruded aluminum barrel. The standard carbon steel rod features an M36x2 thread and a robust 50 mm cushion length to absorb heavy kinetic energy. Remember that the rear adjuster is a physical travel stop, not a locking device; it will not hold a load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160X155-50S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X155-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 155 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 SAIJ160X155-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×155 | 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 SAIJ160X155-50S Is Used
Product Changeover
Dial in the 105-155 mm travel window during product size transitions without disassembling the actuator or bolting on external stops.
Press Fit Tuning
Fine-tune the end position on heavy press operations, using the 50 mm cushion and mechanical stopper to set precise bottoming depth.
Heavy Material Handling
Leverage the 14074 N push force at 0.7 MPa to move heavy pallets or components while adjusting the stroke to match varying load profiles.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160X155-50S the Right Cylinder?
Choose this 160 mm bore when a 125 mm bore (providing 8590 N push at 0.7 MPa) is insufficient, but a 200 mm bore (21991 N push) would be excessive overkill. The 50 mm adjustment range is ideal for production lines running multiple product sizes, allowing you to reposition the end stop on the fly without swapping out the entire cylinder or adding external stops. If your application requires true load-holding in the event of air loss, step up to the SAIL air-released lock or BSAI clamp-lock cylinder instead of relying on the SAIJ adjuster.
For a direct ISO 15552 replacement, match the 160 mm bore, 155 mm stroke, 50 mm adjustment, PT tapered port thread, carbon steel rod, and the -S magnet option. The SAIJ mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets. Although the stroke is under 300 mm, the heavy 40 mm rod diameter handles substantial side loads, though long unsupported travels will still require an external guide.
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 SAIJ160X155-50S FAQ
The rear adjuster acts as a mechanical stop that lets you trim the effective travel back by up to 50 mm. For this 155 mm stroke model, it creates an adjustable travel window of 105 to 155 mm, allowing precise end-position tuning at commissioning without swapping the cylinder.
At a 0.7 MPa operating pressure, this double-acting cylinder generates 14074 N of push force and 9425 N of pull force. At its maximum 1.0 MPa pressure rating, the push force increases to 18095 N.
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