Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-40S 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 SAIJ100BX650-40S
The AirTAC SAIJ100X650-40-S is a double-acting ISO 15552 profile cylinder featuring a rear mechanical adjuster that trims the retract end-position. This specific SKU provides a 650 mm nominal stroke that can be dialed back by up to 40 mm, creating a precise 610 to 650 mm usable travel window for fine-tuning during commissioning. It delivers 3927 N of push force and 3681 N of pull force at a 0.5 MPa operating pressure.
Equipped with a SUS304 stainless steel rod (option B), it handles corrosive environments better than standard carbon steel. The integrated magnet (-S) directly supports AirTAC CMSE reed and DMSE electronic sensors housed in the dual-side extruded aluminum barrel grooves. The rear adjuster acts strictly as a travel stop to set deceleration, meaning it will not hold a load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-40S |
|---|---|
| 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 SAIJ100BX650-40S
| 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 SAIJ100BX650-40S Is Used
Machine Changeover
Dial in the 610-650 mm end-stop during product size transitions without swapping the physical cylinder.
Variable End-Position Tuning
Fine-tune the retract stroke up to 40 mm at commissioning to perfect the seating distance of critical tooling.
Corrosive Assembly Lines
Leverage the SUS304 stainless steel rod for reliable actuation in washdown or mildly corrosive manufacturing environments.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-40S the Right Cylinder?
Choose this adjustable model over a fixed SAI cylinder when your machine setup requires variable end-stops or frequent product changeovers without physically swapping the actuator. If you need slightly less push force, stepping down to a 63 mm bore yields 1559 N at 0.5 MPa; stepping up to a 125 mm bore provides 6136 N. To match this ISO 15552 replacement exactly, specify the 100 mm bore, 650 mm stroke, 40 mm adjustment, PT tapered ports, and the -S magnet.
Because this unit features a 650 mm stroke, the 25 mm rod and M20x1.5 thread provide structural integrity, but an external guide rail is strongly recommended to prevent excessive side-loading on the unsupported piston. For true load-holding without continuous air pressure, select a SAIL pilot-lock or BSAI clamp-lock cylinder instead of relying on the rear stopper.
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 SAIJ100BX650-40S FAQ
At a 0.5 MPa operating pressure, this 100 mm bore cylinder generates 3927 N of push force and 3681 N of pull force. At the maximum 1.0 MPa pressure, it can output up to 801 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 650 mm nominal stroke by up to 40 mm. This creates a 610-650 mm usable travel window for fine-tuning end positions without adding external stops.
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