Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 650mm 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
- Stroke650 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-100S
The AirTAC SAIJ100X650-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 3927 N push force at 0.5 MPa, scaling up to 7068 N at 0.9 MPa, making it suitable for heavy-duty positioning tasks. This specific SKU features a SUS304 stainless steel rod (code B) and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors.
The integrated rear stopper provides a usable travel window of 550 to 650 mm, allowing you to trim the effective stroke by up to 100 mm. This eliminates the need to swap cylinders or bolt on external stops during commissioning or product changeovers. Note that the adjuster acts purely as a travel stop for the air cushion to decelerate against; it does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 650 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 SAIJ100BX650-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×650 | 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 SAIJ100BX650-100S Is Used
Variable End-Stop Positioning
Dial in the exact retraction point between 550 and 650 mm for heavy fixtures without machining custom spacers or changing the cylinder.
Product Line Changeover
Quickly adjust the stroke length on automated assembly lines when switching between different sized products, minimizing machine downtime.
Heavy-Duty Clamping Setup
Fine-tune the clamping depth on large components at commissioning, using the 7068 N push force available at 0.9 MPa to secure the workpiece.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-100S the Right Cylinder?
Choose this adjustable-stroke model over a fixed SAI cylinder when your machine setup requires fine end-position tuning or accommodates varying product sizes. If your application demands less thrust, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa. Because this cylinder features a 650 mm stroke, the 25 mm rod and M20x1.5 thread provide rigidity, but an external guide is strongly recommended to prevent excessive side loading on the piston over long unsupported travels.
To match this exact ISO 15552 replacement, ensure your specifications call for a 100 mm bore, 650 mm nominal stroke, PT tapered port threads, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). For applications requiring true load holding without continuous air pressure, consider the SAIL or BSAI series instead of relying on the rear adjuster.
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 SAIJ100BX650-100S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster allows you to shorten the 650 mm nominal stroke by up to 100 mm, creating a usable travel window of 550 to 650 mm. The adjuster serves as a mechanical stop for the end of the stroke and is not a locking mechanism.
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