Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 300mm 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
- Stroke300 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-50S
The AirTAC SAIJ100X300-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 7068N of push force at 0.9 MPa and features a 25mm carbon steel rod with an M20x1.5 thread. The integrated -S magnet enables position sensing via AirTAC CMSE reed and DMSE electronic sensors.
This model features a 300mm nominal stroke that can be dialed back by up to 50mm, creating a precise 250-300mm usable travel window. The rear adjuster acts purely as a mechanical stop for fine-tuning end positions during commissioning without adding external stops. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 300 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 SAIJ100X300-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×300 | 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 SAIJ100X300-50S Is Used
Machine Changeovers
Dial in the 250-300mm travel window during product size transitions to set new end positions rapidly without machining new hard stops.
Heavy Press Fitments
Leverage the 7068N push force at 0.9 MPa for heavy assembly operations while fine-tuning the final stroke to accommodate material thickness variations.
Variable End Stops
Adjust the retract position on the fly for conveyor diverters or sorting gates that require different stroke lengths for mixed product sizes.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-50S the Right Cylinder?
Choose this 100mm bore when 80mm (yielding 4523N push at 0.9 MPa) is insufficient for heavy positioning tasks. The adjustable 250-300mm travel window is ideal for product changeovers, allowing you to dial in the exact end-stop without swapping the cylinder. Ports use PT tapered threads.
Because the 300mm stroke is relatively long, an external guide is recommended to handle side loads and prevent rod binding. Remember that the rear adjuster is a travel stop, not a lock; for load-holding without live air pressure, select an AirTAC SAIL or BSAI cylinder.
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 SAIJ100X300-50S FAQ
It provides 5497N of push force at 0.7 MPa and 7068N at 0.9 MPa. The operational speed range for this 100mm bore cylinder is 30-800 mm/s.
The rear adjuster is a mechanical stop that lets you shorten the 300mm nominal stroke by up to 50mm, yielding a usable travel window of 250-300mm for precise end-position tuning at commissioning.
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