Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 80mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke80 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-20
The AirTAC SAIJ100X80-20 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 80 mm stroke that can be dialed back by up to 20 mm, creating a precise 60-80 mm usable travel window for fine-tuning end positions at commissioning without swapping hardware.
Delivering 3927 N of push force at 0.5 MPa, this bore size utilizes a G1/2 port and a 25 mm rod. The standard extruded aluminum barrel includes sensor grooves on both sides, while the rod is constructed from SUS304 stainless steel for superior corrosion resistance.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SAIJ100 Adjustable Cylinder SAIJ100BX80-20 Is Used
Machine Changeover
Dial in the exact 60-80 mm travel window during product size changes without replacing the cylinder or bolting on external stops.
Variable End-Stop Setup
Use the rear adjuster screw to fine-tune the retract end position during commissioning for precise machine timing.
Heavy Payload Positioning
Leverage the 3927 N push force to move heavy workpieces while trimming the final approach distance by up to 20 mm.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-20 the Right Cylinder?
Choose this 100 mm bore when 50 mm bore falls short, delivering 982 N push at 0.5 MPa compared to this model's 3927 N. The adjustable stroke is ideal for product changeovers where exact end-position tuning is required, functioning as a travel stop rather than a load-holding lock. For position holding without live air pressure, select the SAIL or BSAI series instead.
As a dimensionally interchangeable ISO 15552 cylinder, replacement requires matching the 100 mm bore, 80 mm stroke, 20 mm adjustment range, PT tapered port thread, and Basic mounting set. The SAIJ series supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, explicitly omitting FB, CA, CB, and CR brackets.
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 SAIJ100 Adjustable Cylinder SAIJ100BX80-20 FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. The maximum operating pressure is 1.0 MPa.
The rear adjuster acts as a mechanical stop that shortens the effective travel by up to 20 mm, creating a 60-80 mm usable stroke window. It only sets the travel end and does not hold the load without live air pressure.
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