Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-30
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX300-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 300mm 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
- Stroke300 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 SAIJ80BX300-30
The AirTAC SAIJ80X300-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the effective travel back by up to 30 mm. This creates a 270-300 mm usable window, letting you dial in the exact retract position during commissioning without adding external stops. It delivers a robust 2513 N pull force at 0.5 MPa, making it suitable for heavy actuation tasks.
This variant uses a SUS304 stainless steel rod for superior corrosion resistance and includes dual-sided sensor grooves on the extruded aluminum barrel. The PT tapered port threads ensure a tight, mechanical seal. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 300 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 SAIJ80BX300-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×300 | 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 SAIJ80BX300-30 Is Used
Product Changeovers
Quickly fine-tune the 270-300 mm retract stop on packaging lines when switching to a different product size, avoiding cylinder disassembly.
Machine Setup
Dial in the exact end position during initial commissioning to perfect a pressing or holding operation without machining external spacers.
Heavy Actuation
Leverage the 2513 N pull force at 0.5 MPa to move heavy pallets or fixtures while retaining the ability to trim the travel window.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-30 the Right Cylinder?
Choose this 80 mm bore when a 50 mm bore falls short of the 825 N pull force required at 0.5 MPa, but a 100 mm bore delivering 3681 N would be excessive. The adjustable 270-300 mm stroke is ideal for product changeovers where the exact end-of-stroke position varies slightly, eliminating the need to physically swap out a fixed-stroke SAI cylinder. For ISO 15552 dimensional interchangeability, verify the 80 mm bore, 300 mm stroke, 30 mm adjustment, PT G3/8 port, and Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting. Because the stroke is 300 mm, the M20x1.5 rod should be paired with an external guide to prevent excessive side-loading.
If your application requires the load to be held in place without continuous air pressure, the rear adjuster and air cushions will not function as a brake. In those cases, consider an AirTAC SAIL lock or BSAI clamp-lock cylinder instead.
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 SAIJ80BX300-30 FAQ
At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
A rear-mounted adjusting screw acts as a mechanical stop, allowing you to shorten the nominal 300 mm stroke by up to 30 mm. This creates a 270-300 mm travel window for fine-tuning the retract position at commissioning. It functions only as a stop and does not lock the load without 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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Most inquiries answered within 7-8 hours.
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