Airtac SAIJ100 Adjustable Cylinder SAIJ100BX185-10S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX185-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 185mm 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
- Stroke185 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX185-10S
The AirTAC SAIJ100X185-10-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. With a nominal stroke of 185 mm and a 10 mm adjustment range, it provides a usable travel window of 175-185 mm. This allows you to dial in the exact end position during commissioning without adding external stops. It delivers robust thrust, generating 7068 N of push force at 0.9 MPa. The piston rod is SUS304 stainless steel (code B), and the body incorporates sensor grooves on both sides to accept CMSE reed and DMSE electronic switches.
This model uses a PT tapered G1/2 port and includes variable air cushions at both ends to manage deceleration. The extruded aluminum barrel design is dimensionally interchangeable per ISO 15552 with cylinders such as SMC or Festo equivalents. The rear adjuster acts purely as a travel stop to fine-tune the retract position; it does not lock or hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX185-10S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX185-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 185 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 SAIJ100BX185-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×185 | 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 SAIJ100BX185-10S Is Used
Machine Setup Tuning
Dial in the exact 175-185 mm retract position during machine commissioning to perfect end-stops without swapping cylinders.
Product Changeover
Quickly adapt the stroke length by up to 10 mm on packaging lines when processing different product sizes.
Assembly Pressing
Apply up to 7068 N of push force at 0.9 MPa for pressing operations while fine-tuning the final approach distance.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX185-10S the Right Cylinder?
Choose this 100 mm bore when an 80 mm bore (providing 4523 N push at 0.9 MPa) is insufficient for your workload, but a 125 mm bore is oversized. The adjustable 175-185 mm travel window is ideal for machinery that requires variable end-stops or frequent product changeovers, offering setup flexibility that a fixed-stroke SAI cylinder cannot match. For holding loads without live air, select a SAIL or BSAI cylinder instead. When replacing an ISO 15552 cylinder, match the 100 mm bore, 185 mm stroke, 10 mm adjust, PT port, and -S magnet. Because the stroke is under 300 mm, side-load risks are moderate, but always guide long unsupported rods externally.
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 SAIJ100BX185-10S FAQ
The rear adjuster acts as an external stopper that lets you shorten the effective stroke by up to 10 mm. This creates a 175-185 mm usable travel window, allowing precise end-position tuning at commissioning without changing the cylinder.
It generates 5497 N of push force at 0.7 MPa and 7068 N at 0.9 MPa. The pull force is 3681 N at 0.5 MPa. Note that the adjuster and air cushions only decelerate the travel end; they do not hold the load without live air.
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