Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 75mm 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
- Stroke75 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-75
The AirTAC SAIJ80X75-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel down to a 0-75 mm window. Delivering 2513 N of push force at 0.5 MPa, it handles demanding positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides for straightforward detection integration.
This specific SKU utilizes a SUS304 stainless steel rod (code B) for superior corrosion resistance and features PT tapered port threads. The rear adjuster acts purely as a mechanical stop to fine-tune the end position without swapping cylinders, but it does not lock the load without live air pressure. Mounting options include the reduced SAIJ set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 75 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 SAIJ80BX75-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×75 | 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 SAIJ80BX75-75 Is Used
Machine Changeover
Dial in the exact end-stop distance instantly when switching product sizes on a packaging line, using the full 0-75 mm adjustment range.
End-Position Tuning
Fine-tune the retract position at commissioning without adding external stopper blocks or changing the cylinder mounting.
Corrosive Assembly Lines
Leverage the SUS304 stainless steel rod for reliable actuation in environments requiring high corrosion resistance.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-75 the Right Cylinder?
Choose this 80 mm bore when you need higher thrust than a 63 mm cylinder (1402 N pull at 0.5 MPa) but want to avoid the bulk of a 100 mm body. The maximum 75 mm adjustment range on this 75 mm stroke lets you dial the end-of-travel position completely back to zero, making it ideal for product changeovers where the exact end-stop distance varies. For load-holding without continuous air pressure, select a SAIL or BSAI cylinder instead, as the SAIJ adjuster is only a stop.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 75 mm stroke, PT port threads, and the desired mounting accessory. Since the rod diameter is 25 mm with an M20x1.5 thread, it handles moderate side loads well, but any application approaching the 30-800 mm/s speed limit should still use an external guide to prevent binding.
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 SAIJ80BX75-75 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 513 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the nominal 75 mm stroke by up to 75 mm, creating a usable travel window of 0-75 mm. It sets the end position but does not hold the load without live air pressure.
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