Airtac SAIJ100 Adjustable Cylinder SAIJ100BX175-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX175-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 175mm 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
- Stroke175 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX175-50S
The AirTAC SAIJ100X175-50-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that trims the effective travel back by up to 50 mm, yielding a precise 125-175 mm usable window. It delivers 5497 N of push force at 0.7 MPa and incorporates a SUS304 stainless steel rod for superior corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet operates directly with AirTAC CMSE reed and DMSE electronic solid-state switches.
Equipped with PT tapered port threads (G1/2) and a robust 25 mm rod with an M20x1.5 thread, this model handles substantial side loads while offering variable air cushions at both ends to decelerate the moving mass. The rear adjuster acts purely as a mechanical stop to fine-tune the end position during commissioning; it does not lock or hold the load without continuous live air pressure. Mounting options cover the standard SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX175-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX175-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 175 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 SAIJ100BX175-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×175 | 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 SAIJ100BX175-50S Is Used
Product Changeover Dials
Adjust the 125-175 mm travel window during production line changeovers to accommodate different package lengths without replacing the cylinder.
High-Force Positioning
Leverage the 5497 N push force at 0.7 MPa to shift heavy pallets or fixtures, tuning the exact end-stop to prevent mechanical crashes during setup.
Corrosive Environment Actuators
Deploy the SUS304 stainless steel rod in washdown or chemical processing areas where carbon steel rods would fail, maintaining precise stroke adjustments.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX175-50S the Right Cylinder?
Choose this 100 mm bore when an application demands high thrust—up to 5497 N at 0.7 MPa—alongside on-the-fly end-position tuning. If your setup requires less force, stepping down to an 80 mm bore yields 3518 N at 0.7 MPa, whereas moving up to 125 mm provides 8590 N. The adjustable stroke is ideal for machine changeovers where product sizes vary, eliminating the need to physically swap cylinders or bolt on external stops.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 175 mm nominal stroke, 50 mm adjustment range, PT G1/2 ports, and the -S magnet requirement. Because the nominal stroke is 175 mm, standard external guiding is still recommended for optimal side-load management. For load-holding applications without live air, note that this rear adjuster is only a travel stop; you should instead specify an AirTAC SAIL (pneumatic lock) or BSAI (clamp-lock) cylinder.
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 SAIJ100BX175-50S FAQ
At a 0.7 MPa operating pressure, this 100 mm bore cylinder provides 5497 N of push force and 3681 N of pull force. At its maximum 1.0 MPa pressure, the push force reaches 7068 N.
The rear adjusting screw acts as an external mechanical stop, allowing you to shorten the 175 mm nominal stroke by up to 50 mm, creating a 125-175 mm usable travel window. It sets the end position but does not lock the load without live air pressure.
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