Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-20
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX450-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 450mm 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
- Stroke450 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 SAIJ100BX450-20
The AirTAC SAIJ100X450-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster, providing a usable travel window of 430 to 450 mm. The extruded aluminum barrel includes sensor grooves on both sides, and the rod is constructed from SUS304 stainless steel for superior corrosion resistance.
This model uses a PT G1/2 port and reaches speeds of 30-800 mm/s. The external rear screw allows you to fine-tune the retract end-position at commissioning without swapping the cylinder or adding external stops. The adjuster acts purely as a travel stop for the air cushion, not a lock, meaning it will not hold a load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 450 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 SAIJ100BX450-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×450 | 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 SAIJ100BX450-20 Is Used
Machine Changeovers
Dial in the 430-450 mm retract position during product size transitions without disassembling tooling or adding external shims.
Variable End Stops
Use the rear adjuster to set precise deceleration points for the integrated air cushion, tuning the end-of-travel impact on the fly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-20 the Right Cylinder?
The adjustable 20 mm window is ideal for product-size changeovers on a line, allowing precise variable end-stops without machining new fixed stops. For load-holding without live pressure, you must integrate an external rod lock or use an AirTAC SAIL or BSAI cylinder, as the SAIJ adjuster is not a brake.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 450 mm stroke, 20 mm adjustment, PT G1/2 port, and your required mounting style. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, explicitly omitting FB, CA, CB, and CR. Because the 450 mm stroke is long, the 25 mm rod and M20x1.5 thread carry significant side-load capacity, but an external guide is still recommended for unsupported loads.
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 SAIJ100BX450-20 FAQ
It can reach a maximum of 801 kgf at 1.0 MPa.
The rear adjuster screw lets you trim the effective travel back by up to 20 mm, creating a 430 to 450 mm usable window. It acts as a mechanical stop for the cushion and does not lock the load without continuous 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.
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Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
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