Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-75
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 500mm 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
- Stroke500 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-75
The AirTAC SAIJ100X500-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 425 to 500 mm. Delivering 3927 N of push force at 0.5 MPa and 7068 N at 0.9 MPa, it provides robust actuation for heavy-duty machinery. The extruded aluminum barrel features sensor grooves on both sides, ready for CMSE reed or DMSE electronic sensors if a magnet is added later.
This variant features a SUS304 stainless steel rod (option B) for superior corrosion resistance and includes PT tapered port threads. The rear adjustment screw allows precise end-position tuning during commissioning without adding external stops. Remember, the adjuster acts as a travel stop, not a lock; for load-holding without live air, consider SAIL or BSAI cylinders.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 500 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 SAIJ100BX500-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×500 | 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 SAIJ100BX500-75 Is Used
Machine Changeover
Dial in the 425-500 mm stroke window on the fly to accommodate different product lengths without physically swapping cylinders on the line.
Heavy Positioning
Leverage 7068 N of push force at 0.9 MPa to move heavy pallets or tooling carriages into exact final positions before clamping.
Long-Stroke Alignment
Use the 500 mm travel to push parts through multi-stage machining centers, fine-tuning the retract stop to align materials perfectly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-75 the Right Cylinder?
Choose this 100 mm bore when 80 mm (2513 N push at 0.5 MPa) is insufficient, but you want to avoid the larger 125 mm footprint. The 75 mm adjustment range is ideal for machines requiring product changeover flexibility, letting you dial in the exact end-stop across a 425-500 mm window rather than swapping fixed-stroke SAI cylinders.
With a 500 mm stroke, the 25 mm rod diameter and M20x1.5 rod thread provide rigidity, but an external guide is highly recommended to prevent side-load damage over this long unsupported travel. The mounting interface uses the reduced SAIJ set: Basic, FA, LB, TC, FTC, TCM1, TCM2 (omitting FB, CA, CB, CR).
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 SAIJ100BX500-75 FAQ
It provides 3927 N of push force and 3681 N of pull force at 0.5 MPa. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw lets you shorten the effective stroke by up to 75 mm. For a 500 mm nominal stroke, this creates a usable travel window of 425 to 500 mm for fine-tuning end positions.
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