Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 240mm 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
- Stroke240 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-50S
The AirTAC SAIJ100X240-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 240 mm nominal stroke by up to 50 mm for a precise 190-240 mm usable travel window. Delivering 3927 N of push force at 0.5 MPa, it handles heavy actuation tasks while maintaining standard ISO 15552 mounting dimensions.
This variant features a SUS304 stainless steel rod (option B) for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet enables position detection with AirTAC CMSE reed or DMSE electronic sensors.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 240 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 SAIJ100BX240-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×240 | 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 SAIJ100BX240-50S Is Used
Machine Setup Tuning
Dial in the exact end position during commissioning using the 50 mm rear adjuster, eliminating the need to machine custom spacers for every new fixture.
Product Changeover
Quickly adapt the travel window from 190 to 240 mm to accommodate varying package sizes on a packaging line without changing the cylinder.
Heavy Forming Operations
Leverage the 3927 N push force at 0.5 MPa for pressing or forming tasks, fine-tuning the stroke to prevent over-travel on delicate workpieces.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-50S the Right Cylinder?
Select this 100 mm bore when 50 mm (982 N) or 63 mm (1559 N) cylinders lack the thrust to move your load, but you want to avoid stepping up to the larger 125 mm frame. The 50 mm adjustment range is ideal for machine setups requiring variable end stops or product-size changeovers, giving you commissioning flexibility without swapping out the physical cylinder.
For a direct ISO 15552 replacement match, specify a 100 mm bore, 240 mm stroke, 50 mm adjustment, PT ports, SUS304 rod, and -S magnet. Note that the rear adjuster acts only as a travel stop, not a lock; the cylinder cannot hold a load without live air. For load-holding without pressure, consider the SAIL or BSAI series. Since the stroke is 240 mm, ensure external guiding is used if the load imposes significant side 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 SAIJ100BX240-50S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 50 mm, providing a usable travel window of 190-240 mm. It allows fine-tuning of the end position without adding external stops, though it does not lock the load without live air pressure.
At 0.5 MPa, it provides 3927 N of push force and 3681 N of pull force. The operating speed ranges from 30 to 800 mm/s, supported by variable air cushions at both ends.
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