Airtac SAIJ80 Adjustable Cylinder SAIJ80BX120-30S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX120-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 120mm 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
- Stroke120 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 SAIJ80BX120-30S
The AirTAC SAIJ80X120-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. This built-in stopper allows fine end-position tuning at commissioning without swapping the barrel or adding external stops.
This SKU is built with a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. It uses PT tapered ports and shares the standard SAI extruded aluminum barrel with sensor grooves on both sides. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX120-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX120-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 120 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 SAIJ80BX120-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×120 | 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 SAIJ80BX120-30S Is Used
Machine Setup Fine-Tuning
Dial in the exact 90 to 120mm end-position during commissioning without machining external spacers or changing the cylinder.
Product Size Changeovers
Quickly adjust the retract stop on a packaging line when switching to a different product thickness, saving setup time.
Variable End-Stop Forming
Provides a repeatable mechanical stop for pressing or forming tasks that need slight travel adjustments between batches.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX120-30S the Right Cylinder?
Choose this 80mm bore when a 50mm bore (982N at 0.5 MPa) is too weak but a 100mm bore (3927N at 0.5 MPa) is physically oversized. The adjustable stroke is ideal for product-size changeovers on a line, whereas a fixed-stroke SAI cylinder requires manual shimming for end-stop changes. Because the stroke is under 300mm, side-load risks are lower, though the robust 25mm rod and M20x1.5 thread handle moderate side loads well.
To match this ISO 15552 cylinder for a replacement, verify the 80mm bore, 120mm stroke, 30mm adjustment range, PT port thread, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. If your application requires true load-holding without live air, use an external rod lock or pilot-operated check valve instead of relying on the rear stopper.
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 SAIJ80BX120-30S FAQ
At 0.7 MPa the push force increases to 3518N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 120mm nominal stroke by up to 30mm, creating a 90-120mm usable travel window. It is a stop only and does not lock the load without air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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