Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 115mm 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
- Stroke115 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-50
The AirTAC SAIJ100X115-50 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers 3927N of push force at 0.5 MPa and provides a usable travel window of 65-115mm, letting you dial back the 115mm nominal stroke by up to 50mm. This built-in adjustability allows fine end-position tuning at commissioning without swapping the cylinder or adding external stops.
This model features a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and uses PT tapered port threads. It includes variable air cushions at both ends to decelerate the load smoothly. Remember that the rear adjuster acts only as a travel stop; it does not hold the load without live air pressure. For position-holding needs, consider the SAIL or BSAI series.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 115 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 SAIJ100AX115-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×115 | 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 SAIJ100AX115-50 Is Used
Precision End-Stop Tuning
Dial in the exact clamping position within the 65-115mm window during machine commissioning without needing external stopper blocks.
Product Changeover
Quickly adjust the effective stroke on packaging lines when switching to a different product size, saving setup time and tooling costs.
Assembly Press Finesse
Control the extension distance precisely on automated assembly presses, using the 3927N of thrust to seat components perfectly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-50 the Right Cylinder?
Choose this 100mm bore when 50mm bore thrust (982N at 0.5 MPa) is insufficient, or step down if you need less force. The adjustable stroke is ideal for machine setups requiring variable end-stops or frequent product-size changeovers, unlike a fixed-stroke SAI cylinder. To match this ISO 15552 footprint, specify the 100mm bore, 115mm stroke, 50mm adjustment, PT ports, and the SUS420J2 rod. Since the nominal stroke is 115mm, external guiding is not strictly required, but ensure the rod thread (M20x1.5) is properly aligned to handle side loads. Standard mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ100AX115-50 FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At 0.7 MPa, the push force increases to 5497N.
A rear adjusting screw lets you trim the 115mm nominal stroke back by up to 50mm, creating a usable travel window of 65-115mm. This stopper only sets the end position and does not lock the load without live air.
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