Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-30S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX70-30S 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 SAIJ100AX70-30S
The AirTAC SAIJ100X70-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 40-70 mm usable travel window by trimming the 70 mm nominal stroke up to 30 mm, allowing precise end-position tuning at commissioning without external stops.
Built with a SUS420J2 stainless steel rod (option A) for corrosion resistance, it includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel integrates sensor grooves on both sides, and the PT tapered ports ensure a tight pneumatic seal.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-30S |
|---|---|
| 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 SAIJ100AX70-30S
| 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 SAIJ100AX70-30S Is Used
Product Changeover Tuning
Dial in the 40-70 mm travel window on the fly when switching between product sizes on a packaging line, eliminating the need to physically swap cylinders.
Precision End-Positioning
Use the rear stopper to fine-tune the exact retracted position during machine commissioning, ensuring perfect alignment without adding external mechanical stops.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-30S the Right Cylinder?
Choose this adjustable-stroke SAIJ over a fixed SAI when a machine requires variable end-stops for product changeovers or fine-tuning during setup. If your application needs less force, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa; if higher force is required, a 125 mm bore provides 6136 N.
For exact ISO 15552 replacement matching, ensure the 100 mm bore, 70 mm stroke, 30 mm adjustment, PT port thread, and -S magnet are specified. The rear adjuster acts as a travel stop, not a lock—this plain SAIJ will not hold a load without live air, so for dead-pilot holding consider an AirTAC SAIL or BSAI series. The robust 25 mm rod thread handles high side loads well, but any stroke over 300 mm still requires an external guide.
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 SAIJ100AX70-30S FAQ
The cylinder has a 70 mm nominal stroke with a 30 mm rear adjustment screw, allowing you to set the effective travel anywhere within a 40-70 mm window without replacing the cylinder.
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1-Year Warranty
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.
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