Airtac SAIJ80 Adjustable Cylinder SAIJ80BX170-75S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX170-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 170mm 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
- Stroke170 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 SAIJ80BX170-75S
The AirTAC SAIJ80X170-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to trim the effective travel back by up to 75 mm. This creates a usable stroke window of 95-170 mm, enabling precise end-position tuning at commissioning without swapping out the entire cylinder. Delivering a robust 2268N pull force at 0.5 MPa, it is built with a SUS304 stainless steel rod and includes a magnet for CMSE reed and DMSE electronic sensors.
The rear adjuster functions strictly as a mechanical stop to set the retract position, not as a lock, meaning it cannot hold a load without live air pressure. For load-holding requirements without continuous air, consider the SAIL or BSAI series. This model uses a PT G3/8 port and supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX170-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX170-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 170 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 SAIJ80BX170-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×170 | 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 SAIJ80BX170-75S Is Used
Machine Setup Changeover
Fine-tune the retract end position during product line changeovers by dialing the rear stopper back by up to 75mm, avoiding the need to physically swap cylinders.
Variable End Stops
Adjust the travel window on the fly to accommodate different package sizes or pusher distances without bolting on external mechanical stops.
Commissioning Calibration
Dial in the exact 95 to 170mm travel window during initial machine commissioning to perfect timing and prevent mechanical interference.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX170-75S the Right Cylinder?
Choose this 80mm bore cylinder when your application requires substantial force, such as the 2268N pull at 0.5 MPa, combined with on-the-fly travel adjustments for product changeovers. If your setup needs less force, stepping down to a 63mm bore yields 1402N pull, whereas moving up to a 100mm bore provides 3681N pull. The adjustable rear stop is ideal for dialing in exact end positions without adding external stops, unlike a fixed-stroke SAI cylinder.
When replacing an ISO 15552 cylinder, match the 80mm bore, 170mm nominal stroke, 75mm adjustment range, PT G3/8 port, and the -S magnet requirement. At a 170mm stroke, the 25mm rod diameter handles moderate side loads well, but always verify structural support if guiding heavy offset loads.
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 SAIJ80BX170-75S FAQ
At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the nominal 170mm stroke by up to 75mm, creating a usable travel window of 95-170mm. It only sets the end position and does not lock or hold the load without live air pressure.
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