Airtac SAIJ100 Adjustable Cylinder SAIJ100AX85-20S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX85-20S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke85 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX85-20S
The AirTAC SAIJ100X85-20-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster.
This variant includes a SUS420J2 stainless steel rod (code A) for improved corrosion resistance and a magnet (-S) for position sensing. It operates at speeds of 30-800mm/s and uses a PT G1/2 port. The rear screw acts purely as a travel stop to decelerate the load, meaning it does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX85-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX85-20S |
|---|---|
| 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX85-20S
| 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 SAIJ100AX85-20S Is Used
Machine Changeover
Dial in the 65-85mm travel window during product size changes without physically replacing the cylinder or adding external stopper blocks.
End-Position Tuning
Fine-tune the retract end position at commissioning to perfect the mechanical timing of high-force 3927N assembly operations.
Variable End Stops
Accommodate multiple part lengths on a single conveyor line by adjusting the rear stopper screw within the 20mm range.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX85-20S the Right Cylinder?
If your setup requires less force, stepping down to an 80mm bore provides 2513N; if more force is needed, a 125mm bore yields 6136N.
For exact ISO 15552 replacement matching, verify the 85mm nominal stroke, 20mm adjustment code, PT G1/2 port, and the -S magnet requirement. This model supports mounting options Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the rear adjuster is a stop and not a lock, use a SAIL or BSAI cylinder if load-holding without live air 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 SAIJ100AX85-20S FAQ
At 0.7 MPa, the push force increases to 5497N.
The rear adjuster screw allows you to shorten the 85mm nominal stroke by up to 20mm, providing a usable travel window of 65-85mm. The adjuster acts as a mechanical stop for end-position tuning and does not lock the load without continuous air pressure.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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