Airtac SAIJ100 Adjustable Cylinder SAIJ100BX425-75
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX425-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 425mm 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
- Stroke425 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 SAIJ100BX425-75
The AirTAC SAIJ100X425-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window down from a 425 mm nominal stroke to a 350 mm minimum. This yields a 75 mm setup flexibility range, letting you dial in the retract end-position at commissioning without adding external stops or swapping the barrel. The extruded aluminum profile includes sensor grooves on both sides, and this specific SKU is built with a SUS304 stainless steel rod (material code B) for superior corrosion resistance.
The rear adjuster acts purely as a mechanical stop to set deceleration and travel limits; it is not a locking device and will not hold a load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX425-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX425-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 425 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 SAIJ100BX425-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×425 | 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 SAIJ100BX425-75 Is Used
Variable End-Stop Setup
Perfect for packaging lines that process multiple carton sizes, allowing operators to dial in the retract position within the 350-425 mm window during format changeovers.
Machine Commissioning
Enables fine end-position tuning during initial machine build, letting engineers trim the 425 mm stroke back by up to 75 mm to perfectly align tooling without machining spacers.
Corrosive Environment Actuation
The SUS304 stainless steel rod makes this double-acting cylinder suitable for food or washdown environments where standard carbon steel rods would fail prematurely.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX425-75 the Right Cylinder?
The adjustable stroke is ideal for product changeovers on a line where the end-stop position frequently shifts by up to 75 mm, replacing the need to physically swap out a fixed-stroke SAI cylinder.
When integrating this model, note the PT tapered port threads (G1/2) and the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the 425 mm stroke is substantial, always support the load with an external guide to prevent excessive rod deflection and premature seal wear.
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 SAIJ100BX425-75 FAQ
The rear adjuster screw lets you shorten the effective travel from the 425 mm nominal stroke down to 350 mm. It acts as a mechanical stop to set the travel end, but it is not a lock and cannot hold a load without continuous air pressure.
Authorized Export Seller
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
Request a Quote for Airtac SAIJ100 Adjustable Cylinder SAIJ100BX425-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.