Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 350mm 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
- Stroke350 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-50S
The AirTAC SAIJ100X350-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 300 to 350 mm. It delivers substantial thrust, generating 5497 N of push force at 0.7 MPa, making it well-suited for heavy-duty positioning tasks. The barrel features an extruded aluminum profile with sensor grooves on both sides, and the included magnet (-S) supports position detection via CMSE reed or DMSE electronic sensors.
This variant utilizes a SUS304 stainless steel rod (code B) for superior corrosion resistance, alongside PT tapered port threads. The rear adjuster acts purely as a mechanical stop to decelerate the travel end, meaning it does not hold the load without live air pressure. For load-holding requirements without continuous air, consider the SAIL or BSAI series.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 350 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 SAIJ100BX350-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×350 | 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 SAIJ100BX350-50S Is Used
Machine Setup Tuning
Dial in the exact end-of-stroke position during initial commissioning using the 50 mm adjustment window, avoiding the need to machine custom external spacers.
Product Size Changeover
Quickly adapt a packaging line to different carton lengths by shifting the retract stop position within the 300-350 mm travel range.
Variable End-Stop Positioning
Set precise retract limits for multi-model assembly fixtures without replacing the entire cylinder or altering the ISO 15552 mounting layout.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-50S the Right Cylinder?
Selecting this 100 mm bore over a smaller 80 mm bore increases your 0.5 MPa push force from 2513 N to 3927 N, providing a robust margin for higher inertia loads. The adjustable stroke is chosen over a fixed SAI cylinder when you need to fine-tune end positions during commissioning or product changeovers without swapping hardware. To match this ISO 15552 footprint, specify a 100 mm bore, 350 mm nominal stroke, 50 mm adjustment, PT port thread, and the -S magnet.
Because the 350 mm stroke is substantial, the 25 mm rod diameter and M20x1.5 thread provide rigidity, but an external guide is still recommended to prevent excessive side loading on the unsupported piston rod. The mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR configurations.
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 SAIJ100BX350-50S FAQ
At a standard operating pressure of 0.7 MPa, this 100 mm bore cylinder provides a push force of 5497 N and a pull force of 3681 N. It can deliver up to 7068 N of push force at 0.9 MPa.
The rear mechanical stopper allows you to shorten the effective travel from the 350 mm nominal stroke down to a minimum of 300 mm. This adjuster sets the travel end and deceleration point, but it is not a lock and will not hold the load without live air pressure.
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