Airtac SAIJ80 Adjustable Cylinder SAIJ80AX250-100S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX250-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 250mm 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
- Stroke250 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 SAIJ80AX250-100S
The AirTAC SAIJ80X250-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the nominal 250 mm travel by up to 100 mm. This creates a wide 150-250 mm usable travel window, perfect for dialing in exact end positions during commissioning without swapping hardware.
Built with a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance, this unit includes a magnet for position sensing. The extruded aluminum barrel houses sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic solid-state switches. It operates at speeds between 30-800 mm/s and uses PT tapered port threads sized at G3/8.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX250-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX250-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 250 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 SAIJ80AX250-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×250 | 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 SAIJ80AX250-100S Is Used
Variable End-Stop Positioning
Ideal for packaging lines where the rear 100 mm adjuster allows operators to quickly reconfigure the 150-250 mm stroke window for different carton depths without changing the cylinder.
Machine Setup & Changeover
Provides fine end-position tuning during commissioning, letting maintenance teams dial in the exact stroke limit on automated assembly equipment without adding external mechanical stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX250-100S the Right Cylinder?
The generous 100 mm adjustment range is ideal for product-size changeovers on a line, letting operators set variable end-stops on the fly instead of installing external stops or reverting to a fixed-stroke SAI cylinder. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Because the 250 mm stroke is substantial, the 25 mm rod diameter should still be paired with an external guide to prevent excessive side-loading on the piston. Remember that the rear adjuster acts purely as a travel stop and does not hold the load without live air; for true load-holding without pneumatic pressure, consider the SAIL or BSAI series. This cylinder is dimensionally interchangeable per ISO 15552.
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 SAIJ80AX250-100S FAQ
If stepped up to 0.7 MPa, the push force increases to 3518 N.
The rear adjusting screw acts as a mechanical stopper that allows you to shorten the effective travel from the nominal 250 mm down to as little as 150 mm. This provides a 150-250 mm adjustable window, but note it is a stop, not a lock, and requires live air to hold 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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