Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-50S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX210-50S 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 SAIJ80AX210-50S
The AirTAC SAIJ80X210-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 210 mm travel by up to 50 mm for a usable 160-210 mm window. The extruded aluminum barrel features sensor grooves on both sides, and because this unit includes the -S magnet option, it integrates directly with AirTAC CMSE reed and DMSE electronic solid-state switches.
This SKU is built with an SUS420J2 stainless steel rod (option A) for improved corrosion resistance and uses PT tapered port threads. The rear adjuster functions strictly as a mechanical stop to set the travel end, not as a lock, meaning it cannot hold a load without live air pressure. For true load-holding without continuous air, consider the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-50S |
|---|---|
| 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 SAIJ80AX210-50S
| 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 SAIJ80AX210-50S Is Used
Machine Changeover Setup
Dial in the exact 160 to 210 mm end-stop during product size transitions without physically swapping the cylinder or adding external shims.
Sensor-Integrated Positioning
Leverage the built-in magnet and dual-side sensor grooves to mount DMSE electronic switches for precise adjustable-stroke confirmation.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-50S the Right Cylinder?
Choose this 80 mm bore when a 50 mm stroke (delivering 2268 N pull at 0.5 MPa) is insufficient and you need the higher thrust of the 80 mm class. The adjustable travel is ideal for machine changeovers where the exact end-of-stroke position must be fine-tuned on-site without swapping out the entire cylinder or adding external physical stops. When matching an ISO 15552 replacement, verify the 210 mm stroke, 50 mm adjustment range, PT G3/8 port, and the -S magnet requirement.
Because the 210 mm stroke exceeds 300 mm only marginally, side loads are moderate, but the M20x1.5 rod thread and 25 mm rod diameter handle standard dynamic forces well. For longer unsupported strokes, always guide the load externally to prevent rod binding.
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 SAIJ80AX210-50S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the nominal 210 mm stroke by up to 50 mm, providing a usable travel window of 160 to 210 mm. It sets the end position but does not lock the load without live air pressure.
At 0.9 MPa, the push force increases to 4523 N.
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