Airtac SAIJ80 Adjustable Cylinder SAIJ80BX155-30S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX155-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 155mm 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
- Stroke155 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 SAIJ80BX155-30S
The AirTAC SAIJ80X155-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the effective travel by up to 30 mm. This creates a usable stroke window of 125 to 155 mm, allowing you to dial in the exact retract end-position at commissioning without adding external stops. It delivers a robust 2513 N pull force at 0.5 MPa, making it suitable for heavy positioning tasks.
Built with a SUS304 stainless steel rod (option B) and PT tapered ports, this model includes a magnet for position sensing. It accepts AirTAC CMSE reed and DMSE solid-state switches in its dual-side sensor grooves. The rear adjuster acts purely as a travel stop for deceleration and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX155-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX155-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 155 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 SAIJ80BX155-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×155 | 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 SAIJ80BX155-30S Is Used
Variable End-Stop Tuning
Dial in the exact retract distance between 125 and 155 mm during machine setup to accommodate different material thicknesses without changing hardware.
Product Changeover
Quickly adjust the stroke end-position on packaging or assembly lines when switching to a new product size, minimizing downtime.
Heavy Positioning
Leverage the 2513 N pull force at 0.5 MPa to move heavy jigs or fixtures into a precise retracted position before the next machine cycle.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX155-30S the Right Cylinder?
Choose this 80 mm bore when your application requires more force than the 50 mm bore (which provides 825 N pull at 0.5 MPa) but does not necessitate stepping up to the 100 mm size (3681 N pull). The adjustable 125-155 mm travel window is ideal for product changeovers where the retract distance varies slightly, saving you from swapping out a fixed-stroke SAI cylinder. For load-holding without continuous air pressure, this cylinder is insufficient; you should specify an SAIL air-released lock or a BSAI clamp-lock cylinder instead. When replacing an ISO 15552 unit, match the 80 mm bore, 155 mm stroke, 30 mm adjuster, PT port, and the -S magnet requirement.
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 SAIJ80BX155-30S FAQ
At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw lets you shorten the nominal 155 mm stroke by up to 30 mm, creating a usable travel window of 125 to 155 mm. This stopper fine-tunes the end position but does not lock the load without live air.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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