Airtac SAIJ100 Adjustable Cylinder SAIJ100BX300-100
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX300-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 300mm 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
- Stroke300 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX300-100
The AirTAC SAIJ100X300-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers 5497N of push force at 0.7 MPa and provides a usable travel window of 200 to 300mm, allowing you to dial back the nominal 300mm stroke by up to 100mm without swapping hardware.
This unit uses a SUS304 stainless steel rod for corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU omits the magnet, meaning electronic DMSE or reed CMSE switches cannot be used without modification.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX300-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX300-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 300 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 SAIJ100BX300-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×300 | 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 SAIJ100BX300-100 Is Used
Variable End-Stop Positioning
Dial in the exact retract distance within the 200-300mm window during machine setup, avoiding physical cylinder swaps when product dimensions change.
Product Changeover Systems
Quickly adjust the stroke length by up to 100mm to accommodate different carton sizes or package widths on a high-speed handling line.
Heavy-Duty Pressing
Leverage the 5497N push force at 0.7 MPa to firmly seat components or actuate heavy assemblies, with the adjuster fine-tuning the final contact position.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX300-100 the Right Cylinder?
Choose this 100mm bore actuator when a 50mm bore falls short on thrust (offering only 1374N at 0.7 MPa) and you need precise end-position tuning during commissioning. The 100mm adjustment window is ideal for product-size changeovers on a packaging line, replacing the need to bolt on external stops or use a fixed-stroke SAI cylinder.
Because the nominal stroke is 300mm, the 25mm rod diameter requires an external guide to prevent excessive side-loading on long unsupported travels. Remember that the rear adjuster acts only as a travel stop; it does not hold the load without live air, so for true load-holding without pressure, consider the SAIL or BSAI series. This cylinder is dimensionally interchangeable per ISO 15552 and supports a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ100BX300-100 FAQ
At an operating pressure of 0.7 MPa, this 100mm bore cylinder provides a push force of 5497N and a pull force of 3681N. It can reach a maximum push force of 801 kgf at 1.0 MPa.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the 300mm nominal stroke down to 200mm. This stop only sets the end position; it does not lock or hold the load without continuous air pressure.
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