Airtac SAIJ80 Adjustable Cylinder SAIJ80BX170-20
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX170-20 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 SAIJ80BX170-20
The AirTAC SAIJ80X170-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 150 to 170 mm, allowing you to dial back the 170 mm nominal stroke by up to 20 mm during commissioning. Delivering a robust 2513 N pull force at 0.5 MPa, it is built with a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered port threads.
This extruded aluminum barrel design includes sensor grooves on both sides for flexible switch mounting. The 25 mm piston rod and M20x1.5 thread provide excellent rigidity, though the rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure. It supports a speed range of 30-800 mm/s and uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) compared to standard fixed-stroke models.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX170-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX170-20 |
|---|---|
| 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 SAIJ80BX170-20
| 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 SAIJ80BX170-20 Is Used
Product Changeover
Quickly fine-tune the retract distance from 150 to 170 mm when switching between product sizes on a packaging line.
End-Position Tuning
Dial in the exact end-of-stroke stop during machine commissioning without adding external physical stops or shims.
Clamp Actuation
Provides 2513 N of pulling force at 0.5 MPa for securely clamping workpieces, with a stainless SUS304 rod for harsh environments.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX170-20 the Right Cylinder?
Choose this 80 mm bore when you need higher thrust than a 63 mm cylinder (which provides 1402 N pull at 0.5 MPa) but want to avoid the larger footprint of a 100 mm option. The adjustable stroke is ideal for applications requiring variable end-stops or product-size changeovers without swapping the physical cylinder. To replace an ISO 15552 cylinder, match the 80 mm bore, 170 mm stroke, 20 mm adjustment, PT port thread, and desired mounting interface. Note that this model lacks a magnet (-S), so position sensing requires adding a magnet or external sensors.
Because the stroke is under 300 mm, side-load stress is moderate, but always ensure proper alignment to avoid rod binding. For load-holding without continuous air pressure, this cylinder is insufficient; consider an AirTAC SAIL (air-released lock) or BSAI (clamp-lock) cylinder instead.
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 SAIJ80BX170-20 FAQ
At 0.7 MPa, the push force increases to 3518 N.
A rear adjusting screw acts as a stopper to shorten the effective stroke. For this 170 mm model, you can trim the travel back by up to 20 mm, giving an adjustable window of 150 to 170 mm without replacing the cylinder.
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