Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 200mm 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
- Stroke200 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-40S
The AirTAC SAIJ100X200-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, letting you dial back the 200 mm nominal stroke by up to 40 mm for a precise 160-200 mm usable travel window. It delivers robust thrust, pushing with 3927 N at 0.5 MPa and pulling with 3681 N, making it well-suited for heavy actuators. The integrated -S magnet enables position feedback via CMSE reed and DMSE electronic sensors.
This model features a SUS304 stainless steel rod for superior corrosion resistance and a PT tapered port thread. Unlike fixed-stroke actuators, the external rear stopper lets you fine-tune the end position at commissioning without swapping the cylinder or adding external stops. Note that this adjuster acts as a travel stop, not a lock; it cannot hold loads without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 200 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 SAIJ100BX200-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×200 | 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 SAIJ100BX200-40S Is Used
Variable End-Stop Tuning
Dial in the exact 160-200 mm travel distance during machine commissioning to accommodate varying product dimensions without mechanical modifications.
Product Changeover
Rapidly adjust the retract end position on packaging lines when switching between different product sizes, minimizing downtime.
Heavy Positioning
Leverage the 3927 N push force to move heavy jigs into place, using the rear stopper to fine-tune the final resting position precisely.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-40S the Right Cylinder?
Choose this 100 mm bore when your application requires more force than a neighboring 80 mm cylinder (2513 N push at 0.5 MPa) but less than a massive 125 mm unit (6136 N). The adjustable stroke is ideal for machine setups requiring variable end stops or product-size changeovers. For load-holding without continuous air pressure, consider an AirTAC SAIL or BSAI cylinder instead, as the SAIJ adjuster only sets the travel end.
To replace an ISO 15552 cylinder, match the 100 mm bore, 200 mm stroke, 40 mm adjustment, PT G1/2 port, and -S magnet. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Since the 200 mm stroke is below the 300 mm threshold, side-load concerns are minimal, but the 25 mm rod and M20x1.5 thread handle moderate side loads well.
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 SAIJ100BX200-40S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides a push force of 3927 N and a pull force of 3681 N. At the maximum 1.0 MPa pressure, it delivers up to 801 kgf.
The rear adjusting screw acts as an external stopper, allowing you to shorten the effective stroke by up to 40 mm from the nominal 200 mm. This creates a usable travel window of 160-200 mm, enabling fine-tuning of the end position without changing the cylinder.
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