Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-40S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 100mm 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
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-40S
The AirTAC SAIJ80X100-40-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 60 to 100 mm, allowing you to dial back the nominal 100 mm stroke by up to 40 mm during machine commissioning without adding external stops. Delivering a push force of 2513 N at 0.5 MPa, it bridges the gap between the 63 mm and 100 mm bore classes.
This variant uses a SUS304 stainless steel rod for superior corrosion resistance and is equipped with a magnet for position sensing. The rear adjuster acts purely as a mechanical stop to set the retract end position; it does not lock or hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 100 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 SAIJ80BX100-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×100 | 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 SAIJ80BX100-40S Is Used
Variable End-Stop Setup
Dial in the exact retract position within the 60-100 mm window during machine commissioning to accommodate varying material thicknesses without external stopper blocks.
Product Size Changeover
Quickly adjust the effective stroke by up to 40 mm when switching the production line to a different package or part dimension, minimizing downtime.
Corrosive Positioning
Leverage the SUS304 stainless steel rod and 2513 N push force to reliably move and position loads in environments requiring high corrosion resistance.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-40S the Right Cylinder?
Choose this 80 mm bore when the 1559 N thrust of a 63 mm cylinder is insufficient, but the 3927 N output of a 100 mm bore is excessive. The 40 mm adjustment range is ideal for applications needing precise variable end-stops or frequent product-size changeovers, replacing the need to swap out fixed-stroke SAI cylinders. It features a PT tapered port thread and operates at speeds between 30 and 800 mm/s.
To match this ISO 15552 dimensionally interchangeable cylinder, confirm the 80 mm bore, 100 mm nominal stroke, 40 mm adjustment code, PT port thread, and the -S magnet option. Available mountings include Basic, FA, LB, TC, FTC, TCM1, and TCM2. The 25 mm rod and M20x1.5 thread provide robust side-load capacity, though long unsupported strokes still require an external guide.
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 SAIJ80BX100-40S FAQ
At a 0.5 MPa operating pressure, this 80 mm bore cylinder generates a push force of 2513 N and a pull force of 2268 N. It can deliver up to 4523 N push force at 0.9 MPa.
The rear adjuster screw lets you mechanically shorten the 100 mm nominal stroke by up to 40 mm, providing a usable travel window of 60 to 100 mm. This stopper only sets the end position; it does not function as a lock to hold the load without air pressure.
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