Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 50mm 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
- Stroke50 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-50S
The AirTAC SAIJ100X50-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 100mm bore and a 50mm nominal stroke that can be dialed back by up to 50mm, creating a highly versatile 0-50mm usable travel window for precise end-position tuning. This bore class delivers 3927N of push force at 0.5 MPa, making it robust enough for heavy-duty positioning tasks.
This specific SKU is configured with a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE and DMSE electronic or reed sensor integration. It uses PT tapered ports sized at G1/2 and relies on a 25mm rod with an M20x1.5 thread. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting set covers Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 50 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 SAIJ100BX50-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×50 | 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 SAIJ100BX50-50S Is Used
Variable End-Stop Clamping
Dial in the exact clamping position on heavy jigs by adjusting the rear screw up to 50mm, allowing rapid setup changes without replacing the cylinder.
Product Size Changeovers
Adapt automated lines to varying part dimensions by trimming the effective stroke window down to 0mm, ensuring precise positioning for each new product run.
Machine Commissioning
Fine-tune the retract end-position during initial machine build or maintenance, eliminating the need to add external physical stops to the fixture.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-50S the Right Cylinder?
Choose this 100mm bore adjustable cylinder when your application requires substantial force—3927N at 0.5 MPa or 5497N at 0.7 MPa—combined with variable end-stops. If you need less force, stepping down to an 80mm bore yields 2513N at 0.5 MPa. The SAIJ series is selected over a fixed-stroke SAI cylinder when you need to fine-tune the retract position at commissioning or during product changeovers without swapping the physical actuator.
When matching this ISO 15552 cylinder for a retrofit, verify the 100mm bore, 50mm stroke, 50mm adjustment range, PT G1/2 port, and the -S magnet. The rear adjuster acts purely as a mechanical travel stop to set deceleration, not as a lock; it will not hold a load without live air. For true load-holding without pneumatic pressure, consider the SAIL or BSAI series instead.
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 SAIJ100BX50-50S FAQ
At 0.5 MPa it provides 3927N of push force and 3681N of pull force. At 0.7 MPa the push force increases to 5497N.
The rear adjuster screw allows you to shorten the 50mm nominal stroke by up to 50mm, giving a usable travel window of 0-50mm. The adjuster functions as a travel stop to set the end position, not as a lock to hold the load.
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