Airtac SAIJ100 Adjustable Cylinder SAIJ100AX85-40
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX85-40 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 SAIJ100AX85-40
The AirTAC SAIJ100X85-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a usable travel window of 45 to 85 mm. This model uses a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and features PT tapered ports.
The external adjusting screw acts purely as a mechanical stop to fine-tune the end position without adding external stops or swapping the cylinder. It is not a locking device, so the load will not hold position without live air pressure. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX85-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX85-40 |
|---|---|
| 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 SAIJ100AX85-40
| 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 SAIJ100AX85-40 Is Used
Variable End-Stop Positioning
Fine-tune the retract distance within the 45-85 mm window to precisely set the end position for heavy machining or clamping tasks.
Product Changeover Setup
Quickly adjust the stroke length up to 40 mm during line changeovers to accommodate different product sizes without replacing the cylinder.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX85-40 the Right Cylinder?
The 40 mm adjustment range is ideal for product changeovers where the retract end-stop varies by up to 40 mm, avoiding the need to physically swap out a fixed-stroke SAI cylinder. Because the stroke is 85 mm, side-load stress is minimal, but always guide the load for smooth operation.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 85 mm nominal stroke, 40 mm adjustment, PT port threads, and the SUS420J2 rod material. Note that this configuration omits a magnet, so position sensing via CMSE or DMSE switches is not possible without a different rod setup. For load-holding requirements without live air, consider the SAIL or BSAI series instead of relying on the rear stopper.
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 SAIJ100AX85-40 FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 40 mm, creating a usable travel window of 45 to 85 mm. It functions as a mechanical stop to set the end position and does not lock the load without live 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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Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
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