Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-75
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-75 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 SAIJ100X500-75
The AirTAC SAIJ100X500-75 is a double-acting, single-rod ISO 15552 profile cylinder engineered for applications requiring exact end-position calibration. Equipped with a rear stroke adjuster, it provides a usable travel window of 425 to 500 mm, enabling you to trim the effective stroke by up to 75 mm during commissioning or product changeovers without swapping out the physical cylinder. Delivering a robust 3927 N of push force at 0.5 MPa, it handles heavy-duty positioning tasks with ease.
This 100 mm bore unit features a sizable 25 mm carbon steel piston rod and an M20x1.5 rod thread, offering substantial rigidity to withstand side loads, though an external guide remains highly recommended for its 500 mm stroke length. The extruded aluminum barrel incorporates sensor grooves on both sides for CMSE reed or DMSE solid-state switches, provided a magnet is specified. The mounting footprint supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 accessories, deliberately omitting the FB, CA, CB, and CR brackets.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-75 |
|---|---|
| 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 SAIJ100X500-75
| 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 SAIJ100X500-75 Is Used
Precision Press End-Stops
Dial in the exact 425 to 500 mm end-position for pressing assemblies, allowing rapid adaptation to different part heights without changing out the actuator.
Machine Changeover Setup
Quickly reconfigure the effective stroke by up to 75 mm during product line changeovers, reducing downtime and eliminating the need for external mechanical spacers.
Variable Length Diverter
Adjust the retract position on the fly to handle varying package sizes on a heavy-load conveyor system, utilizing the 3927 N push force to move substantial weight.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-75 the Right Cylinder?
Selecting this 100 mm bore cylinder makes sense when your machinery demands high thrust, as it pushes 3927 N at 0.5 MPa, stepping up significantly from an 80 mm bore that provides 2513 N. If your application requires less force, dropping to an 80 mm bore saves space and air consumption. The 75 mm rear adjustment mechanism is ideal for fine-tuning variable end stops on the fly, avoiding the need to bolt on external stops or purchase a completely different fixed-stroke SAI cylinder.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 500 mm nominal stroke, PT tapered port threads, and the 75 mm adjustment range. Because the stroke reaches 500 mm, an external guide should be incorporated to prevent rod bending under side-loading. Remember that the rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure; for true fail-safe load holding, consider the SAIL or BSAI series instead.
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 SAIJ100X500-75 FAQ
At a 0.5 MPa operating pressure, this 100 mm bore cylinder generates 3927 N of push force and 3681 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 801 kgf.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective travel from the nominal 500 mm down to 425 mm. It fine-tunes the retract end position but does not lock the load without continuous air pressure.
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