Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-30
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-30 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke450 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-30
The AirTAC SAIJ100X450-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 450 mm travel that can be fine-tuned down by up to 30 mm, yielding a usable 420-450 mm end-position window. Delivering a robust 7068 N push force at 0.9 MPa, it handles heavy-duty positioning tasks with precision.
This variant is equipped with a SUS304 stainless steel rod (code B) for superior corrosion resistance and ships with PT tapered port threads. The extruded aluminum barrel includes dual sensor grooves, allowing you to add CMSE reed or DMSE electronic switches if position feedback is later required. Unlike fixed-stroke SAI units, this model lets you dial in the exact retract stop during commissioning without adding external physical stops.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-30 |
|---|---|
| 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 | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-30
| 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 SAIJ100BX450-30 Is Used
Product Changeovers
Dial in the 420-450 mm retract position during format changes on packaging lines, saving the downtime of physically swapping cylinders or repositioning external stops.
Heavy Pressing Operations
Leverage the 7068 N push force at 0.9 MPa for firm pressing and seating tasks, using the rear screw to precisely tune the bottoming depth without over-stroking.
Machine Setup Calibration
Fine-tune the end-of-stroke position during initial machine commissioning to perfectly align heavy 100 mm bore actuation points within the ISO 15552 footprint.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-30 the Right Cylinder?
Selecting this 100 mm bore cylinder makes sense when your application requires substantial thrust—such as the 5497 N push force at 0.7 MPa—combined with variable end-stop tuning. If you need less force, stepping down to an 80 mm bore yields 4523 N at 0.9 MPa; stepping up to a 125 mm bore provides 11045 N. Because the nominal stroke is 450 mm, an external guide is strongly recommended to prevent excessive side-loading on the rod and M20x1.5 thread.
An adjustable stroke is ideal for product changeovers on a line, allowing you to shift the retract position by up to 30 mm without swapping the cylinder. The rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure; for true pneumatic locking without pressure, consider the SAIL or BSAI series. This unit is dimensionally interchangeable per ISO 15552 and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ100BX450-30 FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 30 mm. This creates a usable travel window of 420-450 mm, letting you fine-tune the retract end position during setup or product changeovers without altering the cylinder mount.
At an operating pressure of 0.9 MPa, the SAIJ100X450-30 provides a push force of 7068 N and a pull force of 3681 N. It operates efficiently at speeds between 30 and 800 mm/s.
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