Airtac SAIJ100 Adjustable Cylinder SAIJ100BX40-30
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX40-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 40mm 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
- Stroke40 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 SAIJ100BX40-30
It features a SUS304 stainless steel rod for superior corrosion resistance and PT tapered port threads. The integrated rear stopper allows you to fine-tune the retract position on the fly without adding external physical stops.
With a nominal 40mm stroke and a 30mm adjustment code, this SKU provides a usable travel window of 10-40mm. The extruded aluminum barrel includes sensor grooves on both sides, though this specific configuration omits the magnet, meaning CMSE or DMSE electronic switches cannot be used without modification. The rear adjuster acts purely as a travel stop to set the end position and does not lock the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX40-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX40-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 40 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 SAIJ100BX40-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×40 | 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 SAIJ100BX40-30 Is Used
Product Changeovers
Dial in the 10-40mm travel window during format changes on packaging lines, using the rear stopper to set new end positions without changing hardware.
Machine Setup
Eliminate the need for external stopper blocks during equipment commissioning by relying on the built-in 30mm adjustment range to find the optimal retract point.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX40-30 the Right Cylinder?
Choose this 100mm bore when you need heavy thrust (3927N at 0.5 MPa) across a very short, finely tunable distance. If your application requires less force, stepping down to the 80mm bore yields 2513N, whereas moving up to 125mm provides 6136N. The adjustable 10-40mm window is ideal for product-size changeovers on a line, allowing operators to dial in the exact end-stop during commissioning rather than swapping out a fixed-stroke SAI cylinder.
For dimensionally interchangeable ISO 15552 replacements, match the 100mm bore, 40mm nominal stroke, 30mm adjustment range, PT port threads, and SUS304 rod material. Because the stroke is under 300mm, side-loading is less of a concern, but the 25mm rod diameter still handles robust loads. Remember that the rear adjuster is a stop, not a clamp; for load-holding without live air, consider the SAIL or BSAI series instead.
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 SAIJ100BX40-30 FAQ
The maximum thrust is 801 kgf at 1.0 MPa.
The rear adjuster screw lets you trim the effective travel back by up to 30mm from the 40mm nominal stroke, creating a 10-40mm usable window. It functions as a physical stop to fine-tune the end position and is not a locking device.
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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.
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