Airtac SAIJ80 Adjustable Cylinder SAIJ80BX210-40
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX210-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 210mm 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
- Stroke210 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 SAIJ80BX210-40
The AirTAC SAIJ80X210-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down from the 210mm nominal stroke to a 170mm minimum. This creates a 170-210mm usable window for dialing in the exact retract end-position during commissioning without swapping out the unit.
This bore features a 25mm piston rod with an M20x1.5 thread, paired with a PT (tapered) port and a SUS304 stainless steel rod material for enhanced corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting options cover Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX210-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX210-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 210 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 SAIJ80BX210-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×210 | 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 SAIJ80BX210-40 Is Used
Machine Setup
Dial in the exact 170-210mm retract position during equipment commissioning to align tooling without machining external stop blocks.
Product Changeovers
Quickly adjust the end-stop by up to 40mm when running a new product size on the line, minimizing downtime between batches.
Variable End Stops
Set precise retract limits for multi-stage assembly processes where the cylinder must pull back to slightly different positions per cycle.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX210-40 the Right Cylinder?
The adjustable stroke is chosen over a fixed SAI cylinder when you need variable end-stops for product changeovers or precise machine setup. The rear adjuster acts purely as a mechanical stop to set the travel end; it does not hold the load without live air. For true load-holding without continuous pressure, consider the SAIL or BSAI series. To replace an ISO 15552 cylinder, match the 80mm bore, 210mm stroke, 40mm adjustment, PT port, and mounting hardware.
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 SAIJ80BX210-40 FAQ
At 0.9 MPa, the push force increases to 4523N.
The rear adjuster screw lets you shorten the 210mm nominal stroke by up to 40mm, providing a usable travel window of 170-210mm to fine-tune the end position.
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1-Year Warranty
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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Most inquiries answered within 7-8 hours.
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