Airtac SAIJ100 Adjustable Cylinder SAIJ100BX220-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX220-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 220mm 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
- Stroke220 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX220-20S
The AirTAC SAIJ100X220-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a usable travel window of 200 to 220 mm. Delivering 3927 N of push force at 0.5 MPa, it integrates a SUS304 stainless steel rod for superior corrosion resistance and a PT tapered port thread for a robust pneumatic seal. The extruded aluminum barrel includes sensor grooves on both sides to accommodate CMSE reed and DMSE solid-state switches.
Because the external stopper acts solely as a travel end deceleration device, it will not hold a load without live air pressure. For true fail-safe load holding, consider the SAIL or BSAI series. This adjustable variant utilizes a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options found on fixed-stroke models.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX220-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX220-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 220 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 SAIJ100BX220-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×220 | 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 SAIJ100BX220-20S Is Used
Product Changeover Stops
Dial in the exact end-position during format size changes on a packaging line without replacing the actuator or adding external mechanical stops.
Commissioning Fine-Tuning
Trim the effective travel back by up to 20 mm during initial machine setup to perfectly time the stroke sequence and prevent mechanical interference.
Variable End-Position Clamping
Adjust the clamping reach on a 100 mm bore actuator delivering up to 7068 N of push force at 0.9 MPa to securely hold different workpiece widths.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX220-20S the Right Cylinder?
Select this 100 mm bore when an 80 mm bore falls short of the required thrust, as stepping down yields 2513 N of push force at 0.5 MPa. The 20 mm rear adjustment mechanism is chosen over a fixed SAI cylinder when a machine requires variable end-stops to accommodate product changeovers without physically swapping the actuator. To match this exact configuration, specify the 100 mm bore, 220 mm stroke, 20 mm adjustment, PT port, SUS304 rod material, and the -S magnet for sensor compatibility.
With a 220 mm stroke, the 25 mm rod diameter and M20x1.5 rod thread provide substantial rigidity, but any application exceeding 300 mm of unsupported travel should incorporate an external guide to prevent excessive side-loading on the barrel.
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 SAIJ100BX220-20S FAQ
The rear adjusting screw acts as an external stopper, allowing you to shorten the effective stroke within a 200 to 220 mm travel window. It sets the travel end and deceleration point but does not lock the load without live air pressure.
At 0.5 MPa operating pressure, it provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
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