Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-75S 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 SAIJ100BX500-75S
The AirTAC SAIJ100X500-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the retract travel, creating a precise 425-500 mm usable window. It delivers 3927 N of push force at 0.5 MPa and features a SUS304 stainless steel rod for superior corrosion resistance. The integrated magnet supports CMSE reed and DMSE electronic sensors for exact position feedback.
Because the adjuster acts as a fixed stop at the rear cap, it decelerates the piston without holding the load pneumatically. For true load-holding without live air pressure, an external rod lock or related AirTAC types like SAIL or BSAI are required. The extruded aluminum barrel includes dual sensor grooves, and the mounting set omits FB, CA, CB, and CR options, utilizing Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-75S |
|---|---|
| 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 SAIJ100BX500-75S
| 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 SAIJ100BX500-75S Is Used
Product Changeover
Dial in the exact retract distance from 425 to 500 mm during line format changes, setting new end positions without swapping hardware.
Fixture Positioning
Fine-tune the clamping depth on large fixtures where a fixed 500 mm stroke would over-travel, using the rear stopper to hit the exact mark.
Diversion Arm Control
Adjust the stroke length on sorting pushers to handle varying package sizes on a single conveyor line without adding external stops.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-75S the Right Cylinder?
Select this 100 mm bore cylinder when your application requires substantial thrust—3927 N at 0.5 MPa or up to 7068 N at 0.9 MPa. If your force requirements are lower, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa. The 75 mm adjustment range is perfect for machine setups needing variable end-stops during product changeovers, eliminating the need to physically swap out a fixed-stroke SAI cylinder.
When configuring your replacement, verify the 500 mm stroke, 75 mm adjustment, PT tapered port threads, and the -S magnet option. Since this cylinder features a 500 mm stroke, the 25 mm rod diameter and M20x1.5 thread will carry significant side loads; always use an external guide to prevent rod binding. Operating speed is 30-800 mm/s, and the cylinder is dimensionally interchangeable per ISO 15552.
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 SAIJ100BX500-75S FAQ
At a standard 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 7068 N of push force.
The nominal stroke is 500 mm, but the rear adjuster allows you to shorten the effective retract travel by up to 75 mm. This creates a usable travel window of 425 to 500 mm, enabling fine-tuning at commissioning without external stops.
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