Airtac SAIJ100 Adjustable Cylinder SAIJ100BX225-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX225-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 225mm 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
- Stroke225 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX225-100S
The AirTAC SAIJ100X225-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 225 mm nominal stroke by up to 100 mm. This yields a usable travel window of 125 to 225 mm, providing immense flexibility during machine commissioning or product changeovers without swapping out the physical actuator. Delivering 5497 N of push force at 0.7 MPa, it handles heavy-duty positioning tasks with ease.
This specific configuration features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing. It is fully compatible with AirTAC CMSE reed switches and DMSE solid-state electronic sensors that mount directly into the extruded aluminum barrel's dual sensor grooves. The rear adjuster acts purely as a travel stop for end-position tuning and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX225-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX225-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 225 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 SAIJ100BX225-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×225 | 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 SAIJ100BX225-100S Is Used
Variable End-Stop Positioning
Ideal for machining fixtures where the rear 100 mm adjuster allows operators to fine-tune the extended end-position within a 125-225 mm window, adapting to varying part dimensions without external stops.
Product Changeover Diverter
Perfect for packaging lines that switch between box sizes, using the adjustable stroke to quickly reconfigure the push-off distance for different conveyor product widths.
Machine Setup & Commissioning
Allows engineers to precisely set the travel limit during initial machine build, absorbing mechanical tolerances by trimming the stroke back from the nominal 225 mm.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX225-100S the Right Cylinder?
Select this 100 mm bore actuator when your application demands high thrust—stepping up from a 80 mm bore gives you a significant jump from 3518 N to 5497 N at 0.7 MPa, while dropping to a 63 mm bore reduces thrust to 2182 N. The adjustable stroke is chosen over a fixed SAI model when you need variable end-stops to accommodate multiple product sizes on the same line. Because the 225 mm stroke exceeds 300 mm? No, but for any long unsupported loads, external guides are recommended to prevent rod side-loading.
To replace an ISO 15552 cylinder, match the 100 mm bore, 225 mm stroke, 100 mm adjustment range, PT tapered port threads, and the -S magnet option. Note that SAIJ uses a reduced mounting accessory set: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR brackets. For applications requiring the load to be held without live air pressure, this cylinder's adjuster will not act as a lock; you should look at the SAIL (air-released lock) or BSAI (clamp-lock) variants 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 SAIJ100BX225-100S FAQ
At a standard operating pressure of 0.7 MPa, this 100 mm bore cylinder provides 5497 N of push force and 3681 N of pull force. At a maximum pressure of 1.0 MPa, it can deliver up to 801 kgf.
The rear adjuster screw allows you to shorten the effective travel from the nominal 225 mm down to as little as 125 mm, creating a 125-225 mm adjustable window. This stopper only sets the end position; it does not lock the load without continuous air pressure.
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