Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 950mm 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
- Stroke950 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-30
The AirTAC SAIJ80X950-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a robust 2513N push force at 0.5 MPa. It features a SUS304 stainless steel rod and PT tapered port threads. The integrated -30 adjustment code allows you to fine-tune the effective travel within a 920-950 mm window, perfect for dialing in exact end positions without adding external stops.
Because this 950 mm stroke is substantial, the 25mm rod diameter and M20x1.5 rod thread provide crucial rigidity, though an external guide is still recommended to manage side loads. The rear adjuster acts purely as a travel stop and works alongside variable air cushions at both ends to decelerate the payload smoothly.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 950 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 SAIJ80BX950-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×950 | 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 SAIJ80BX950-30 Is Used
Long-Stroke Changeover
Dial in the 920-950 mm travel window during product size changes on a packaging line, using the rear screw to set exact endpoints without swapping cylinders.
Machine Setup Tuning
Fine-tune the final retract position at commissioning to achieve precise alignment, leveraging the 2513N force to push heavy assemblies into place.
Material Handling
Actuate large gates or diverters over a 950 mm span, relying on the SUS304 stainless rod to withstand harsh industrial environments.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-30 the Right Cylinder?
Choose this 80mm bore when a 50mm bore (982N push at 0.5 MPa) lacks the thrust for your long-stroke application, but a 100mm bore (3927N) would be excessive overkill. The adjustable 920-950 mm window is ideal for product changeovers or fine-tuning machine setup at commissioning, replacing the need to swap out a fixed-stroke SAI cylinder. When matching your ISO 15552 replacement, verify the 950mm stroke, 30mm adjustment, PT port, and mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
For a 950mm stroke, always support the load with an external guide rail to prevent excessive side-loading on the rod. Remember that the rear adjuster is a stop, not a lock; this SAIJ cylinder cannot hold a load without live air, so consider an external rod lock or SAIL cylinder if position holding is required.
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 SAIJ80BX950-30 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 -30 code means the nominal 950mm stroke can be mechanically shortened by up to 30mm via a rear stopper screw, giving an adjustable travel window of 920-950mm. This stopper only sets the end position; it does not lock the load.
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