Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-30
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-30 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 SAIJ100X85-30
The AirTAC SAIJ100X85-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 100mm bore generating 7068N of push force at 0.9 MPa, making it suited for heavy-duty positioning. By turning the external stopper screw, you can trim the nominal 85mm stroke back by up to 30mm, yielding a precise 55-85mm usable travel window for exact end-position tuning at commissioning.
This model incorporates a 25mm carbon steel piston rod with an M20x1.5 thread, providing robust resistance to side loads, though long unsupported strokes still require external guides. It supports PT tapered port threads and uses a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2. The extruded aluminum barrel includes sensor grooves on both sides, ready to accept CMSE reed or DMSE electronic switches if a magnet is specified later.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-30 |
|---|---|
| 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 SAIJ100X85-30
| 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 SAIJ100X85-30 Is Used
Machine Changeover
Dial in the 55-85mm travel window during product size transitions to set new end positions rapidly without changing the cylinder.
Heavy-Duty Positioning
Leverage the 7068N push force at 0.9 MPa to move and position heavy fixtures, using the rear screw to trim the final fraction of travel.
Variable End Stops
Set precise retract limits on automated assembly lines where multiple end-of-stroke positions are required from a single actuator.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-30 the Right Cylinder?
Select this 100mm bore adjustable-stroke cylinder when your application demands high thrust (up to 801 kgf at 1.0 MPa) alongside variable end-stop positioning. If you need less force, stepping down to an 80mm bore yields 4523N at 0.9 MPa; stepping up to 125mm provides 11045N. Choose the SAIJ adjustable format over a fixed SAI cylinder when you need to fine-tune the retract end during machine setup or product changeover without swapping hardware.
For an ISO 15552 replacement match, ensure your parameters align with this 100mm bore, 85mm nominal stroke, 30mm adjustment range, PT port threads, and the specified mounting style. Because the stroke is under 300mm, side-load concerns are minimal, but always guide the load if it is heavy or off-center. Remember that the rear adjuster acts only as a travel stop, not a lock; it will not hold the load without live air pressure, so consider an external pilot-operated check valve or SAIL lock cylinder if position holding is required.
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 SAIJ100X85-30 FAQ
It features a rear external stopper screw that allows you to shorten the effective stroke by up to 30mm. This creates a usable travel window of 55-85mm, letting you fine-tune the retract end position during commissioning without adding external stops.
At 0.9 MPa operating pressure, the SAIJ100X85-30 provides a push force of 7068N and a pull force of 3681N. It can deliver a maximum push force of 801 kgf at 1.0 MPa.
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