Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 900mm 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
- Stroke900 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-30S
The AirTAC SAIJ80X900-30-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 870 to 900 mm, allowing you to dial back the nominal 900 mm stroke by up to 30 mm during commissioning. The 80 mm bore generates 3518 N of push force at 0.7 MPa, paired with a 25 mm SUS420J2 stainless steel rod for robust side-load resistance.
This unit includes a magnet for CMSE reed and DMSE electronic sensors, which seat neatly into the dual-side barrel grooves. It uses PT tapered ports (G3/8) and relies on variable air cushions at both ends to decelerate the payload. The rear stopper sets the end position but does not hold the load without live air pressure; for true load-holding, select a SAIL or BSAI variant.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 900 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 SAIJ80AX900-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×900 | 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 SAIJ80AX900-30S Is Used
Long-Stroke Conveying
Dial in the 870-900 mm stroke to perfectly index pallets or push heavy goods across long distances without repositioning external hardware.
Machine Setup Tuning
Use the 30 mm rear adjuster to fine-tune the retracted end position during machine commissioning, ensuring precise product spacing on the line.
Heavy-Duty Assembly Press
Leverage the 3518 N push force at 0.7 MPa for pressing applications, relying on the 25 mm stainless rod to handle significant side loads.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-30S the Right Cylinder?
Choose this 80 mm bore if you need more thrust than a 63 mm cylinder (which provides 2182 N at 0.7 MPa) but want to avoid the bulk of a 100 mm unit. The adjustable 870-900 mm window is ideal for fine-tuning end positions on long-stroke machinery without adding external stops. Because the stroke is 900 mm, the unsupported rod is highly susceptible to deflection and side-loading; an external guide rail is strongly recommended to prevent premature seal wear.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 900 mm stroke, 30 mm adjustment, PT G3/8 port, and -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. The double-acting operation runs at 30-800 mm/s.
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 SAIJ80AX900-30S FAQ
At 0.7 MPa, the 80 mm bore delivers 3518 N of push force and 2268 N of pull force. It can reach a maximum push force of 4523 N at 0.9 MPa.
The rear adjuster acts as a travel stop, allowing you to shorten the effective stroke from 900 mm down to 870 mm. This creates an 870-900 mm usable window for fine-tuning end positions without swapping the cylinder.
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