Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-30 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 SAIJ80BX900-30
The AirTAC SAIJ80X900-30 is a double-acting ISO 15552 profile cylinder engineered with a rear stroke adjuster, providing a usable travel window of 870 to 900 mm. Delivering 4523N of push force at 0.9 MPa, it is built to handle demanding positioning tasks. The extruded aluminum barrel features sensor grooves on both sides for straightforward detection integration.
This specific configuration incorporates a SUS304 stainless steel piston rod for superior corrosion resistance and utilizes PT tapered port threads. The rear adjustment screw functions purely as a mechanical stop to fine-tune the end position during commissioning without requiring external shims. It does not lock or hold the load pneumatically; for dead-air load holding, consider SAIL or BSAI variants.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-30 |
|---|---|
| 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 SAIJ80BX900-30
| 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 SAIJ80BX900-30 Is Used
Machine Changeover
Dial in the 870-900mm retract stop during format size changes on packaging lines without dismounting the actuator.
Extended Transfer
Pushes heavy pallets over a 900mm stroke, utilizing the 4523N push force at 0.9 MPa to move loads efficiently.
Commissioning Calibration
Fine-tune the exact end-of-stroke position during initial machine setup to perfect timing and prevent mechanical crashes.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-30 the Right Cylinder?
Select this 80mm bore actuator when an application requires substantial thrust, such as the 2513N pull force at 0.5 MPa, combined with precise retract-end positioning over a long 900mm travel. The 30mm adjustment window is ideal for product changeovers, allowing operators to dial in the exact end-stop without swapping hardware. If less force is needed, stepping down to a 63mm bore yields 1402N pull at 0.5 MPa.
Because the 900mm stroke exceeds typical compact lengths, the 25mm diameter rod and M20x1.5 thread provide rigidity, but an external guide is strongly recommended to prevent side-load binding on extended travels. This model uses the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable per ISO 15552. Note that it lacks a magnet; position sensing requires a different configuration.
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 SAIJ80BX900-30 FAQ
At an operating pressure of 0.9 MPa, this 80mm bore cylinder generates a push force of 4523N and a pull force of 3681N. The maximum operating pressure is 1.0 MPa.
The rear adjuster acts as a mechanical stop, allowing you to shorten the effective stroke from 900mm down to 870mm. It only sets the travel end and does not hold the load without live air pressure.
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