Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-75S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX210-75S 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 SAIJ80AX210-75S
The AirTAC SAIJ80X210-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 2513N of pull force at 0.5 MPa and provides a usable travel window of 135-210 mm, allowing you to dial back the 210 mm nominal stroke by up to 75 mm during commissioning. The barrel is extruded aluminum with sensor grooves on both sides.
This unit includes a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and carries the -S magnet option for direct compatibility with AirTAC CMSE reed and DMSE electronic sensors. The rear stopper functions strictly as a travel end-deceleration point, not a lock, meaning live air is required to maintain the load.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-75S |
|---|---|
| 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 SAIJ80AX210-75S
| 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 SAIJ80AX210-75S Is Used
Product Changeovers
Quickly fine-tune the retract end-position by up to 75 mm when switching a packaging line to a different carton size, eliminating the need for physical spacer modifications.
Machine Setup
Dial in the exact 135-210 mm travel window during initial commissioning to perfect the pressing force without disassembling the pneumatic circuit.
Variable End-Stops
Adapt the cylinder's effective stroke on the fly for testing different material lengths in a clamping fixture before finalizing the fixed stop parameters.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-75S the Right Cylinder?
Choose this 80 mm bore when an application requires substantial thrust, such as the 2513N pull force at 0.5 MPa, but step down to a 63 mm bore (1402N pull) if the load is lighter to save space and air consumption. The adjustable stroke is selected over a fixed SAI model when you need variable end-stops for product changeovers without swapping the cylinder or adding external stops. For strokes of 300 mm or more, an external guide is recommended to manage side-load, though this 210 mm stroke is well within standard limits.
To match this ISO 15552 replacement exactly, specify: 80 mm bore, 210 mm stroke, 75 mm adjustment, PT tapered port threads, SUS420J2 rod material, and the -S magnet. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. If the machine requires true load-holding without live air pressure, select the SAIL or BSAI series 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 SAIJ80AX210-75S FAQ
At the maximum operating pressure of 1.0 MPa, it can deliver up to 513 kgf.
The rear adjuster screw allows you to shorten the effective travel from the 210 mm nominal stroke down to 135 mm. This creates a 75 mm adjustable window for fine-tuning the end position at commissioning, but it acts as a stop and does not lock the load without live air.
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