Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-20
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-20 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 SAIJ80BX100-20
The AirTAC SAIJ80X100-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position without adding external stops. With a nominal 100 mm stroke and a 20 mm adjustment range, it provides a usable travel window of 80-100 mm, making it ideal for machine setups that require precise end-position tuning during commissioning or product changeovers.
Delivering robust performance, this 80 mm bore model generates 4523 N of push force at 0.9 MPa and 3518 N at 0.7 MPa. It features a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible CMSE or DMSE switch mounting, while the variable air cushions at both ends manage end-of-stroke deceleration.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-20 |
|---|---|
| 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 SAIJ80BX100-20
| 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 SAIJ80BX100-20 Is Used
Machine Changeover
Dial in the 80-100 mm travel window during product size transitions without bolting on external physical stops or replacing the cylinder.
Commissioning Fine-Tune
Use the rear adjusting screw to precisely set the retract end-position during initial machine setup, absorbing mechanical tolerances.
Assembly Pressing
Leverage the 4523 N push force at 0.9 MPa for pressing operations while retaining the flexibility to trim the stroke back by up to 20 mm.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-20 the Right Cylinder?
Choose this 80 mm bore adjustable-stroke unit when your application demands higher force than a 63 mm cylinder (which provides 2805 N push at 0.9 MPa) but does not require the full 7068 N output of a 100 mm bore. The SAIJ80X100-20 is selected over a fixed-stroke SAI when a machine requires a variable end-stop to accommodate minor product size changes on a line without physically swapping the cylinder.
For a true ISO 15552 replacement, match the 80 mm bore, 100 mm nominal stroke, 20 mm adjustment code, PT port threads, and SUS304 rod material. Note that the rear adjuster acts only as a mechanical travel stop and does not hold the load without live air pressure; for dead-air load holding, consider an AirTAC SAIL lock or BSAI clamp-lock cylinder. Mounting options include the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ80BX100-20 FAQ
This 80 mm bore cylinder delivers 2513 N push and 2268 N pull force at 0.5 MPa, scaling up to 4523 N push at 0.9 MPa. It operates at speeds between 30 and 800 mm/s.
The rear adjuster screw lets you shorten the effective travel from the nominal 100 mm down to 80 mm. This stopper fine-tunes the retract end position at commissioning but does not lock the load without live air pressure.
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