Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 45mm 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
- Stroke45 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-30S
The AirTAC SAIJ80X45-30-S 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 45 mm nominal stroke to a precise 15-45 mm window. It delivers a robust 2513 N push force at 0.5 MPa, scaling up to 4523 N at 0.9 MPa, making it well-suited for high-force positioning tasks.
This specific configuration includes a SUS420J2 stainless steel rod for enhanced corrosion resistance and uses PT tapered port threading. Equipped with a standard magnet (-S), it is fully compatible with AirTAC CMSE reed and DMSE solid-state sensors mounted into the dual-side extruded aluminum barrel grooves. The rear adjuster acts purely as a mechanical travel stop for end-position tuning during commissioning, not as a load-holding lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 45 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 SAIJ80AX45-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×45 | 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 SAIJ80AX45-30S Is Used
Machine Commissioning
Dial in the exact end-of-stroke position during initial setup using the 15-45 mm rear adjustment window, avoiding the need to add external physical stops.
Product Changeover
Quickly adapt the cylinder's extended reach on automated lines when switching between different product sizes or packaging formats.
High-Force Positioning
Leverage the 2513 N push force at 0.5 MPa to securely move and locate heavy jigs or fixtures into their exact working positions.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-30S the Right Cylinder?
Select this 80 mm bore adjustable cylinder when your machine setup requires variable end-stops or frequent product-size changeovers without physically swapping the actuator. Stepping down to a 63 mm bore drops the 0.5 MPa push force to 1559 N, whereas this 80 mm unit provides 2513 N for heavier moving masses. If your application requires true load-holding without live air pressure, a standard SAIJ is insufficient; you should instead specify an AirTAC SAIL or BSAI locking cylinder.
To replace an ISO 15552 cylinder of the same dimensions, match the 80 mm bore, 45 mm stroke, 30 mm adjustment range, PT G3/8 port, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR brackets. With a 25 mm rod and M20x1.5 thread, it handles side loads well, though any long unsupported stroke still necessitates an external guide.
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 SAIJ80AX45-30S FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At 0.9 MPa, the push force increases to 4523 N.
The rear adjuster is a mechanical stop that lets you trim the effective travel back by up to 30 mm from the 45 mm nominal stroke, creating a usable 15-45 mm window for fine-tuning end positions without replacing the cylinder.
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