Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-30S 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 SAIJ100X50-30S
The AirTAC SAIJ100X50-30-S is a double-acting ISO 15552 profile cylinder featuring a built-in rear stroke adjuster. It delivers 3927N of push force at 0.5 MPa and provides a usable travel window of 20 to 50 mm, letting you dial in the exact retract end-position during commissioning. The extruded aluminum barrel includes sensor grooves on both sides, and this -S variant comes magnetized for position feedback.
Equipped with a carbon steel piston rod and an M20x1.5 rod thread, it handles robust loads, while the PT tapered port threads ensure a tight pneumatic seal. The rear adjuster acts purely as a travel stop to fine-tune deceleration, so for any load-holding requirements without live air pressure, you should specify a SAIL or BSAI series lock cylinder instead.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-30S |
|---|---|
| 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 SAIJ100X50-30S
| 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 SAIJ100X50-30S Is Used
Machine Setup Tuning
Dial in the exact 20-50mm end-position during initial commissioning to perfect pressing depth without machining custom spacers.
Product Changeover
Quickly adjust the retract stop to accommodate varying product heights on a conveyor line, minimizing downtime between runs.
Variable End-Stop Forming
Fine-tune the stroke limit on the fly for light assembly tasks, relying on the 7068N push force at 0.9 MPa for consistent actuation.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-30S the Right Cylinder?
Choose this 100mm bore when an 80mm bore (delivering 2513N push at 0.5 MPa) is insufficient for your clamping or pressing demands. The 30mm adjustment range on this 50mm nominal stroke is ideal for product-size changeovers on a packaging line, allowing operators to reposition the end stop without swapping out the entire cylinder or adding external mechanical stops.
To match this ISO 15552 footprint for a direct replacement, verify the 50mm stroke, 30mm adjustment, PT port threads, and the -S magnet requirement. Since the nominal stroke is under 300mm, side-load stress is minimal, but the 25mm rod diameter still requires external guiding if subjected to heavy lateral forces.
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 SAIJ100X50-30S FAQ
The rear adjuster screw allows you to mechanically shorten the retract stroke by up to 30mm. This gives you a usable travel window of 20 to 50mm, enabling fine end-position tuning without changing the cylinder or adding external stops.
At 0.5 MPa operating pressure, it provides 3927N of push force and 3681N of pull force. At a maximum 1.0 MPa, the push force reaches 801 kgf.
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