Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-40
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX70-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 70mm 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
- Stroke70 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 SAIJ100AX70-40
The AirTAC SAIJ100X70-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 70 mm stroke with an integrated stopper screw that allows you to trim the effective travel back by up to 40 mm. This creates a highly flexible 30-70 mm usable window, letting you dial in exact end positions at commissioning without adding external stops.
It features a SUS420J2 stainless steel rod for high durability, PT tapered port threads, and variable air cushions at both ends. The rear adjuster acts only as a travel stop to set deceleration; it does not hold the load without live air.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 70 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 SAIJ100AX70-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×70 | 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 SAIJ100AX70-40 Is Used
Product Changeover
Dial in the 30-70 mm travel window during format changes to accommodate varying package sizes without swapping hardware.
End-Position Tuning
Fine-tune the retract stop during commissioning to perfect machine timing and avoid mechanical hard stops.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-40 the Right Cylinder?
Choose this adjustable-stroke model over a fixed SAI cylinder when your machine setup requires frequent product-size changeovers or fine end-position tuning. For higher force needs, a 125 mm bore provides 6136 N.
When specifying a replacement, match the 100 mm bore, 70 mm stroke, 40 mm adjustment range, PT port threads, and the desired mounting set. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, explicitly omitting FB, CA, CB, and CR. Because the stroke is under 300 mm, side-load concerns are minimal, but always guide external loads. For load-holding without pneumatic pressure, use an external rod lock or pilot-operated check valve.
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 SAIJ100AX70-40 FAQ
A rear stopper screw lets you shorten the 70 mm nominal stroke by up to 40 mm, creating a 30-70 mm usable travel window. The adjuster sets the retract end position but does not lock the load without live air pressure.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
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