Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-100S 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke185 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-100S
The AirTAC SAIJ80X185-100-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers 2513N of thrust at 0.5 MPa and up to 4523N at 0.9 MPa. Equipped with a magnet for CMSE reed or DMSE electronic sensors, this unit uses a PT tapered port thread and a robust 25mm carbon steel rod.
This SKU provides a versatile usable travel window of 85-185mm, allowing you to dial back the nominal 185mm stroke by up to 100mm. The rear adjustment screw lets you fine-tune end positions during commissioning or product changeovers without adding external stops. Remember that this adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-100S |
|---|---|
| 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-100S
| 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 SAIJ80X185-100S Is Used
Variable End-Stop Tuning
Dial in the exact 85 to 185mm travel distance during machine setup to accommodate multiple product lengths on the same conveyor line.
Rapid Product Changeover
Quickly retract the rear stopper by up to 100mm when switching to a shorter package size, eliminating the need to physically swap cylinders.
High-Force Positioning
Leverage the 80mm bore's 4523N push force at 0.9 MPa to move heavy pallets or fixtures while benefiting from precise end-position adjustments.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-100S the Right Cylinder?
Choose this 80mm bore when an application requires higher force than the 63mm bore (which provides 1559N push at 0.5 MPa) but does not need the full 3927N at 0.5 MPa offered by a 100mm bore. The massive 100mm adjustment range is ideal for machines processing variable product sizes, replacing the need to swap out fixed-stroke SAI cylinders during line changeovers. For load-holding without continuous air pressure, this cylinder is not a lock; you should consider the SAIL (air-released lock) or BSAI (clamp-lock) series instead.
As a direct ISO 15552 interchangeable replacement, verify your footprint matches the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting interface (the SAIJ series omits FB, CA, CB, and CR mounts). Because the 185mm stroke is under 300mm, side-load risks are moderate, but the 25mm rod with an M20x1.5 thread handles higher bending moments well; always use an external guide for heavy lateral loads.
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 SAIJ80X185-100S FAQ
The rear adjuster screw allows you to shorten the effective travel from the nominal 185mm down to 85mm, providing a 100mm adjustable window. It functions as a mechanical stop to tune the end position and does not lock the load without live air pressure.
At 0.5 MPa operating pressure, it provides 2513N of push force and 2268N of pull force. At 0.9 MPa, the push force increases to 4523N, with a maximum rated force of 513 kgf at 1.0 MPa.
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