Airtac SAIJ80 Adjustable Cylinder SAIJ80AX300-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX300-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 300mm 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
- Stroke300 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX300-30
The AirTAC SAIJ80X300-30 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 2513N push force at 0.5 MPa and features a 300mm nominal stroke that can be fine-tuned down by up to 30mm, creating a precise 270-300mm usable travel window for exact end-position calibration.
This unit features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and uses PT tapered port threads (G3/8). Because the 300mm stroke is relatively long, the 25mm rod diameter should be paired with an external guide to prevent excessive side-loading. The rear stopper sets the travel end but does not lock the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX300-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX300-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 300 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 SAIJ80AX300-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×300 | 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 SAIJ80AX300-30 Is Used
Variable End-Stop Machining
Dial in the exact 270-300mm travel distance during CNC fixture changeovers to accommodate different part lengths without changing the cylinder.
Product Diversion Setup
Fine-tune the retract position on packaging lines to handle varying box sizes, using the rear screw to adjust the stopping point on the fly.
Assembly Press Tuning
Set precise lower end-positions for pressing applications, relying on the 2513N thrust at 0.5 MPa while trimming the stroke to prevent over-travel.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX300-30 the Right Cylinder?
Choose this 80mm bore when an application requires higher thrust than a 63mm cylinder (which provides 1559N push at 0.5 MPa) but without the bulk of a 100mm bore (3927N). The adjustable 270-300mm travel window is ideal for machine setups requiring variable end-stops or product changeovers, eliminating the need to swap out a fixed-stroke SAI cylinder. To match this ISO 15552 footprint exactly, specify an 80mm bore, 300mm stroke, 30mm adjustment, PT port thread, and no magnet.
For any 300mm stroke, always support the load with an external guide to protect the rod from side-load wear. If your machine requires true load-holding without continuous air pressure, note that this rear adjuster acts only as a travel stop; you would need an external rod lock or a related SAIL pneumatic lock cylinder 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 SAIJ80AX300-30 FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.7 MPa, the push force increases to 3518N.
The rear adjuster screw allows you to shorten the effective stroke by up to 30mm, providing a usable travel window of 270-300mm from the nominal 300mm stroke. This stopper only sets the end position and does not hold the load without live air.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80AX300-30
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.