Airtac SAIJ80 Adjustable Cylinder SAIJ80BX175-50
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX175-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 175mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke175 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX175-50
The AirTAC SAIJ80X175-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 175 mm travel that can be dialed back by up to 50 mm, yielding a usable 125-175 mm end-position window for fine-tuning during commissioning.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops when product sizes change. The rear screw acts purely as a travel stop to set the retract end, not as a load-holding lock. For applications requiring position holding without live air pressure, consider the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX175-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX175-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 175 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX175-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×175 | 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 SAIJ80 Adjustable Cylinder SAIJ80BX175-50 Is Used
Variable End-Stop Positioning
Dial in the exact 125 to 175 mm retract distance during machine setup without physically replacing the cylinder or adding spacer shims.
Product Size Changeovers
Quickly adapt a packaging line to different box lengths by turning the rear adjuster screw to shift the end-of-stroke position.
Stroke Tuning
Compensate for mechanical wear or slight misalignments in fixturing by fine-tuning the effective travel distance at commissioning.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX175-50 the Right Cylinder?
Choose this 80 mm bore when 50 mm bore thrust (982 N at 0.5 MPa) is insufficient, but a 100 mm bore (3927 N) would be excessive overkill. The 50 mm adjustment range is ideal for machinery processing varying product lengths, allowing operators to reposition the retract end-stop on the fly. Since the 175 mm stroke is under the 300 mm side-load threshold, external guiding is less critical, though the robust 25 mm rod and M20x1.5 thread handle moderate side loads well.
When matching this for an ISO 15552 replacement, verify the 80 mm bore, 175 mm stroke, 50 mm adjustment, PT port thread, and SUS304 (B) rod material. Note that SAIJ supports a specific mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. As no magnet is specified, it will not support CMSE or DMSE sensors without modification.
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 SAIJ80 Adjustable Cylinder SAIJ80BX175-50 FAQ
At its maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw lets you shorten the 175 mm nominal stroke by up to 50 mm, creating a 125-175 mm usable travel window. It functions as a physical stop for end-position tuning and does not lock or hold the load without continuous air pressure.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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