Airtac SAIJ80 Adjustable Cylinder SAIJ80X250-10
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X250-10 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke250 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X250-10
The AirTAC SAIJ80X250-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 2513N of push force at 0.5 MPa. It features a 25mm carbon steel piston rod and a PT tapered G3/8 port. By turning the rear screw, you achieve a 240-250mm usable travel window, perfect for dialing in exact end positions without external stops.
This extruded aluminum profile cylinder includes sensor grooves on both sides for flexible switch mounting. It supports a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. The rear adjuster functions strictly as a travel stop to set deceleration, not as a lock to hold loads without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X250-10 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X250-10 |
|---|---|
| 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80X250-10
| 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 SAIJ80X250-10 Is Used
Machine Commissioning
Fine-tune the 240-250mm travel window during initial setup to perfectly dial in retract positions without machining new hard stops.
Product Changeover
Quickly adjust the end-of-stroke position by up to 10mm on packaging lines when switching to a slightly different product size.
Assembly Stations
Leverage 2513N of thrust at 0.5 MPa for pressing operations while retaining the flexibility to tweak the stroke for part variations.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X250-10 the Right Cylinder?
Choose this 80mm bore when you need 2513N push force at 0.5 MPa, bridging the gap between the 63mm bore (1559N) and the 100mm bore (3927N). The 10mm adjustment range is ideal for fine-tuning retract end positions during machine commissioning or product changeovers, avoiding the need to swap out a fixed-stroke SAI cylinder. For load-holding without continuous air pressure, consider an AirTAC SAIL or BSAI cylinder instead. Because the 250mm stroke is substantial, ensure adequate external guiding to prevent excessive side-loading on the rod.
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 SAIJ80X250-10 FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 513 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 10mm, creating a 240-250mm travel window. It sets the end position but does not lock the load without live air pressure.
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