Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-75
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 85mm 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
- Stroke85 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-75
The AirTAC SAIJ100X85-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 3927N of push force at 0.5MPa and provides a usable travel window of 10-85mm, letting you shorten the nominal 85mm stroke by up to 75mm. This built-in adjustability allows precise end-position tuning during commissioning without swapping out the cylinder.
Equipped with a 25mm carbon steel rod and M20x1.5 thread, it handles substantial side loads, while the PT tapered G1/2 ports ensure reliable pneumatic connections. The extruded aluminum barrel includes sensor grooves on both sides for future CMSE or DMSE sensor additions. Remember, the rear adjuster acts only as a travel stop for deceleration, not a load-holding lock.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 85 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 SAIJ100X85-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×85 | 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 SAIJ100X85-75 Is Used
Machine Setup Tuning
Dial in the exact 10-85mm travel window during initial commissioning to perfectly align tooling without adding external mechanical stops.
Product Changeover
Quickly adapt the stroke end-position on a packaging line when handling different carton sizes, using the rear screw to trim the travel.
Assembly Pressing
Apply up to 7068N of push force at 0.9MPa for pressing tasks while retaining the flexibility to shorten the stroke for varied part heights.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-75 the Right Cylinder?
Choose this 100mm bore when your application requires significant thrust, such as 3927N at 0.5MPa, but still needs fine-tuning of the end-stop. If you need less force, stepping down to an 80mm bore yields 2513N at 0.5MPa. Since the stroke is under 300mm, external side-load guides are less critical, though the robust 25mm rod helps manage deflection. If your machine requires the load to stay in place without live air pressure, select a SAIL or BSAI cylinder instead, as the SAIJ adjuster is strictly a stop, not a brake. This model is dimensionally interchangeable per ISO 15552, featuring PT ports and a mounting set that includes 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 SAIJ100X85-75 FAQ
The rear adjusting screw acts as a mechanical stop, allowing you to trim the effective stroke back by up to 75mm. This creates a usable travel window of 10-85mm, meaning you can set the retract end-position anywhere within that range without modifying the cylinder mounting.
At 0.5MPa operating pressure, it provides 3927N of push force and 3681N of pull force. If you operate at 0.9MPa, the push force increases to 7068N.
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Standard models usually ship in 3-4 days.
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