Airtac SAIJ100 Adjustable Cylinder SAIJ100BX155-30
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX155-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 155mm 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
- Stroke155 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX155-30
The AirTAC SAIJ100X155-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 125-155 mm usable travel window, allowing you to dial back the nominal 155 mm stroke by up to 30 mm during commissioning. Delivering a robust 5497 N push force at 0.7 MPa, it handles heavy loads with precision.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and is built without a magnet. It uses a PT G1/2 port and includes variable air cushions at both ends. The extruded aluminum barrel maintains standard ISO 15552 mounting dimensions, utilizing a reduced set of brackets: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX155-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX155-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 155 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 SAIJ100BX155-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×155 | 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 SAIJ100BX155-30 Is Used
End-Position Tuning
Dial in the exact retract distance within the 125-155 mm window during machine setup to accommodate varying material thicknesses without hardware changes.
Heavy Clamping Force
Leverage the 5497 N push force at 0.7 MPa to secure heavy workpieces firmly during machining or welding operations.
Product Changeover
Quickly adjust the stroke by up to 30 mm on automated lines when switching between different product sizes, minimizing downtime.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX155-30 the Right Cylinder?
Choose this 100 mm bore when a smaller 80 mm cylinder lacks thrust, as the 80 mm yields 3518 N at 0.7 MPa compared to this model's 5497 N. The adjustable stroke is ideal for product changeovers, letting you fine-tune the retract position without swapping cylinders or adding external stops. Remember that the rear adjuster acts only as a travel stop; it does not hold the load without live air, so consider a SAIL or BSAI cylinder if true locking is required.
For this 155 mm stroke, the 25 mm rod and M20x1.5 thread provide excellent rigidity, though external guides should still support the load. To replace an ISO 15552 cylinder, match the 100 mm bore, 155 mm stroke, PT G1/2 port, and the appropriate mounting bracket. Since no magnet is specified, position sensing via CMSE or DMSE switches is not supported without modifying the configuration.
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 SAIJ100BX155-30 FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from 155 mm down to 125 mm. It only sets the travel end and does not lock the load without continuous air pressure.
At an operating pressure of 0.7 MPa, the SAIJ100X155-30 provides a push force of 5497 N and a pull force of 3681 N. It can reach a maximum push force of 7068 N at 0.9 MPa.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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