Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-75 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 SAIJ80BX950-75
The AirTAC SAIJ80X950-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 2513N of push force at 0.5 MPa. Its 950mm nominal stroke features a 75mm adjustment range, creating an exact 875-950mm usable travel window for fine-tuning retract end positions during commissioning. This model utilizes a SUS304 stainless steel rod and PT tapered ports.
Because the 950mm stroke is lengthy, the 25mm rod diameter and M20x1.5 rod thread provide robust support, though an external guide is still recommended to manage side loads. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting hardware covers Basic, FA, LB, TC, FTC, TCM1, and TCM2 configurations.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-75 |
|---|---|
| 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 SAIJ80BX950-75
| 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 SAIJ80BX950-75 Is Used
Long-Stroke Machining
Dials in the exact 875-950mm retract distance on large fixtures without swapping cylinders or adding external stopper blocks.
Product Changeover
Adjusts the end-stop on the fly to accommodate varying pallet sizes on a 80mm bore automated handling line.
Commissioning Tuning
Trims the final 75mm of travel during machine setup to perfectly time the stroke without reprogramming the pneumatic valves.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-75 the Right Cylinder?
Select this 80mm bore when an application requires high thrust (up to 513kgf at 1.0 MPa) across a long 875-950mm variable travel window. If the setup demands less force, stepping down to a 63mm bore yields 1559N at 0.5 MPa; stepping up to a 100mm bore provides 3927N. The adjustable screw is strictly a travel stop for end-position tuning, not a lock, so it cannot hold loads without live air. For load-holding without pressure, consider an external rod lock or the SAIL series.
To replace this cylinder per ISO 15552 mounting dimensions, match the 80mm bore, 950mm stroke, 75mm adjustment, PT port thread, and SUS304 rod material. Note that SAIJ omits the FB, CA, CB, and CR mounting styles found on some standard cylinders. Operating speed for this bore is 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 SAIJ80BX950-75 FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At its maximum 1.0 MPa pressure, it delivers up to 513kgf.
The rear adjuster screw acts as a mechanical stop that shortens the effective stroke from its 950mm nominal length, providing a usable travel window between 875mm and 950mm. It only sets the end position and does not lock the load.
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