Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 375mm 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
- Stroke375 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-30
The AirTAC SAIJ80X375-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the nominal 375 mm stroke by up to 30 mm, creating a precise 345-375 mm usable travel window. It delivers 2513 N of push force and 2268 N of pull force at 0.5 MPa, making it suitable for heavier positioning tasks. The barrel is extruded aluminum with sensor grooves on both sides.
This specific configuration features a SUS420J2 stainless steel rod for enhanced corrosion resistance and uses PT tapered port threads (G3/8). The rear adjuster acts purely as a mechanical stop to fine-tune the end position during commissioning; it is not a lock and cannot hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 375 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 SAIJ80AX375-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×375 | 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 SAIJ80AX375-30 Is Used
Variable End Stops
Dial in the exact 345-375 mm retract position during machine setup to accommodate varying material lengths without external stopper hardware.
Product Changeover
Quickly adjust the travel end on packaging lines when switching to different package sizes, using the rear screw to set the new resting point.
Heavy Positioning
Leverage the 2513 N push force at 0.5 MPa to move heavier pallets or fixtures into a precise working zone before final clamping.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-30 the Right Cylinder?
Choose this 80 mm bore when 50 mm (982 N push at 0.5 MPa) is too weak but 100 mm (3927 N) is oversized. The adjustable 345-375 mm window is ideal for product changeovers, letting you set variable end stops without physically swapping the cylinder or adding external stopper blocks. For load-holding without continuous air pressure, you would need a separate SAIL or BSAI series cylinder, as the SAIJ adjuster only restricts travel.
Because the 375 mm stroke is relatively long, the 25 mm rod should be guided externally to prevent excessive side-loading and premature seal wear. When matching ISO 15552 interchangeability, specify the 80 mm bore, 375 mm stroke, 30 mm adjustment, PT G3/8 port, and your required mounting style. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR options.
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 SAIJ80AX375-30 FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke by up to 30 mm from the nominal 375 mm. This creates a 345-375 mm travel window for fine-tuning end positions at commissioning, but it does not lock or hold the load without live air pressure.
At 0.5 MPa, it provides 2513 N of push force and 2268 N of pull force. The operating speed range for this 80 mm bore is 30-800 mm/s, utilizing variable air cushions at both ends for deceleration.
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