Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 800mm 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
- Stroke800 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-20
The AirTAC SAIJ100X800-20 is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, delivering 7068N of push force at 0.9 MPa. Its integrated stopper allows you to trim the effective travel down from the 800 mm nominal stroke, providing a 780-800 mm usable window for precise end-position tuning at commissioning.
This unit features a SUS304 stainless steel rod for corrosion resistance and uses a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Remember, the rear adjuster acts only as a travel stop to set deceleration; it does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 800 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 SAIJ100BX800-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×800 | 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 SAIJ100BX800-20 Is Used
Machine Changeover
Quickly dial in the 780-800 mm travel window during product size changes on a production line without replacing the cylinder or bolting on external physical stops.
Heavy Material Handling
Leverage the 7068N push force at 0.9 MPa to move heavy pallets or chassis components, using the rear adjuster to fine-tune the final resting position safely.
Long-Stroke Pressing
Execute long-range pressing or forming tasks where the exact 800 mm end-position needs minor 20 mm field adjustments to accommodate material thickness variations.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-20 the Right Cylinder?
Choose this 100 mm bore when your application requires significant thrust, such as the 5497N push force at 0.7 MPa, stepping up from a 80 mm bore that provides 3518N. The 20 mm adjustment range is ideal for product changeovers, allowing you to dial in the exact end-stop without swapping cylinders or adding external stops. For load-holding without continuous air pressure, consider the SAIL or BSAI series instead, as the SAIJ adjuster is not a lock.
Because this model features an 800 mm stroke, the 25 mm diameter piston rod and M20x1.5 rod thread will experience leverage forces during extension. An external guide is strongly recommended to prevent excessive side-loading and premature seal wear. This cylinder uses the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. It is dimensionally interchangeable per ISO 15552.
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 SAIJ100BX800-20 FAQ
At 0.5 MPa it provides 3927N push and 3681N pull force. At 0.9 MPa the push force is 7068N and pull is 6616N. The maximum allowable operating pressure is 1.0 MPa.
The rear adjuster screw lets you shorten the effective travel from the 800 mm nominal stroke down to 780 mm. This creates a 20 mm tuning window for exact end-position setting during commissioning, but it functions only as a travel stop and does not lock the load.
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