Airtac SAIJ80 Adjustable Cylinder SAIJ80BX275-75S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX275-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 275mm 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
- Stroke275 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 SAIJ80BX275-75S
The AirTAC SAIJ80X275-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a 2513N pull force at 0.5MPa and provides a usable travel window of 200-275mm, letting you dial back the nominal 275mm stroke by up to 75mm during commissioning. This eliminates the need to swap out the cylinder or bolt on external stops when fine-tuning end positions.
Built with a SUS304 stainless steel rod for corrosion resistance, this unit integrates dual-sided sensor grooves compatible with CMSE reed and DMSE electronic switches. The rear adjuster functions strictly as a mechanical stop to set the travel end and relies on the built-in air cushion for deceleration; it does not lock or hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX275-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX275-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 275 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 SAIJ80BX275-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×275 | 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 SAIJ80BX275-75S Is Used
Variable End-Stop Tuning
Dial in the exact 200 to 275mm travel distance during machine setup without replacing the entire cylinder or adding external mechanical stops.
Product Size Changeover
Quickly reposition the rear stopper on a packaging line to accommodate varying package lengths, reducing downtime between production runs.
Corrosive Environment Actuation
Leverage the SUS304 stainless steel rod and 2513N pull force for reliable clamping and positioning in washdown or mildly corrosive industrial settings.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX275-75S the Right Cylinder?
Choose this 80mm bore when you need substantial thrust (2513N pull at 0.5MPa) alongside a wide 200-275mm adjustable travel window for frequent product-size changeovers. If your application requires less force, the 63mm bore offers 1402N pull, while stepping up to the 100mm bore yields 3681N pull. Because the 275mm stroke is moderately long, ensure you use an external guide to prevent side-loading damage to the M20x1.5 rod thread.
For an exact ISO 15552 replacement, match the 80mm bore, 275mm stroke, 75mm adjustment range, PT tapered ports, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, intentionally omitting FB, CA, CB, and CR. If you need true load-holding without continuous air pressure, select the SAIL or BSAI series instead, as this adjuster is only a stop.
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 SAIJ80BX275-75S FAQ
The operating speed range is 30-800mm/s.
The rear adjuster acts as a mechanical stop, allowing you to shorten the effective travel from 275mm down to 200mm. It sets the end position but does not lock the load without live air pressure.
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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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