Airtac SAIJ80 Adjustable Cylinder SAIJ80BX170-75
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX170-75 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 SAIJ80BX170-75
It features a rear-mounted adjustment screw that allows you to trim the nominal 170 mm stroke back by up to 75 mm, creating a usable travel window of 95 to 170 mm. This built-in adjuster lets you fine-tune the retract end position during commissioning or product changeovers without adding external stops or swapping the cylinder.
This configuration uses a SUS304 stainless steel piston rod (option B) for superior corrosion resistance, paired with PT tapered port threads (G3/8). The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. The rear adjuster acts purely as a travel stop to set deceleration and end-position, not as a lock; the cylinder cannot hold a load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX170-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX170-75 |
|---|---|
| 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 SAIJ80BX170-75
| 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 SAIJ80BX170-75 Is Used
Product Changeover Positioning
Dial in the retract stop from 95 to 170 mm on the fly when switching packaging lines to different container sizes, eliminating the need to physically swap cylinders.
Machine Setup Commissioning
Use the rear screw to precisely set the end-of-stroke datum during initial machine build, absorbing minor mechanical tolerances without machining external stop blocks.
Corrosive Environment Actuation
Leverage the SUS304 stainless steel rod option for pushing or forming tasks in washdown or mildly corrosive industrial environments where carbon steel would degrade.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX170-75 the Right Cylinder?
Choose this 80 mm bore when your application requires high force (up to 2513 N at 0.5 MPa) but the exact end-of-stroke position varies by product or needs precise mechanical tuning at setup. If you need less force, the 63 mm bore offers 1559 N at 0.5 MPa; if you need more, the 100 mm bore provides 3927 N. Because the stroke is 170 mm, side loading is minimal, but the 25 mm rod and M20x1.5 thread provide robust resistance to minor deflection. For applications requiring true load-holding without continuous air pressure, select the SAIL (pneumatic lock) or BSAI (clamp-lock) series instead of relying on this adjuster.
To match this exact unit for an ISO 15552 replacement, specify an 80 mm bore, 170 mm stroke, 75 mm adjustment range, PT G3/8 ports, SUS304 (B) rod material, and no magnet. The compatible mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). The operating speed range is 30-800 mm/s.
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 SAIJ80BX170-75 FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 75 mm. This gives you a usable travel window of 95 to 170 mm. It acts as a mechanical stop to fine-tune the end position, but it is not a lock—the cylinder still requires live air pressure to hold the load.
At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf of thrust.
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