Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-100S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX185-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 185mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke185 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-100S
The AirTAC SAIJ80X185-100-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. Built with a SUS304 stainless steel rod and an integrated magnet (-S), it pairs directly with AirTAC CMSE reed and DMSE electronic sensors via the dual-side barrel grooves.
This adjustable-stroke design allows you to dial in the retract position during commissioning or product changeovers without swapping the cylinder or adding external stops. The rear screw acts purely as a travel stop for deceleration alongside the standard air cushions; it does not hold the load without live air. For position holding without pneumatic pressure, an external rod lock or a related SAIL lock cylinder is required.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 185 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | 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 SAIJ80 Adjustable Cylinder SAIJ80BX185-100S Is Used
Variable Product Changeover
Quickly redefine the retract end-stop from 185mm down to 85mm when adapting a packaging line to different carton sizes, eliminating the need for physical spacer changes.
Machine Setup Fine-Tuning
Precisely dial in the tooling position during initial commissioning, using the 100mm adjustment screw to find the perfect operational window without machining new mounts.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-100S the Right Cylinder?
The 100mm adjustment window is ideal for machines processing varying product sizes, letting operators redefine the retract end-stop on the fly instead of installing a fixed-stroke SAI cylinder. To match this exact ISO 15552 replacement, specify: 80mm bore, 185mm stroke, PT tapered port threads, SUS304 (B) rod material, the -S magnet option, and a mounting set limited to Basic, FA, LB, TC, FTC, TCM1, or TCM2.
Because the nominal stroke is 185mm, side-load stress is moderate, but the 25mm rod diameter provides excellent rigidity. Always ensure external guiding for the load if it generates significant moments, as the cylinder rod is designed for axial force transmission.
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 SAIJ80 Adjustable Cylinder SAIJ80BX185-100S FAQ
At 0.7MPa, the push force increases to 3518N.
The rear adjuster screw allows you to trim the effective stroke back by up to 100mm. This creates a usable travel window of 85-185mm, enabling fine-tuning of the end position at commissioning without replacing the cylinder.
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Standard models are processed and dispatched in 3-5 business days.
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