Airtac SAIJ80 Adjustable Cylinder SAIJ80AX275-30
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX275-30 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 SAIJ80AX275-30
The AirTAC SAIJ80X275-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down to a 245-275 mm window without adding external stops. The piston rod is constructed from SUS420J2 stainless steel for enhanced durability against moisture.
This model uses a PT tapered G3/8 port and includes variable air cushions at both ends to manage impact deceleration. The extruded aluminum barrel features sensor grooves on both sides, though this specific SKU is configured without a magnet. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting the FB, CA, CB, and CR styles found on some other series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX275-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX275-30 |
|---|---|
| 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 SAIJ80AX275-30
| 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 SAIJ80AX275-30 Is Used
Product Changeovers
Dial in the retract stop from 275 mm down to 245 mm instantly when switching to a shorter package size on the line.
End-Position Tuning
Fine-tune the final resting position during machine commissioning without fabricating custom external spacers.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX275-30 the Right Cylinder?
Choose this 80 mm bore when a 50 mm bore (offering 1374 N at 0.7 MPa) lacks the necessary thrust, but a 100 mm bore (5497 N) would be excessive. The 30 mm adjustment range is ideal for product-size changeovers, allowing operators to dial in the exact end position at commissioning rather than machining custom spacers or swapping to a fixed-stroke SAI cylinder. Because the stroke is 275 mm, an external guide rail is recommended to prevent excessive side loading on the unsupported rod.
When specifying a replacement, match the 80 mm bore, 275 mm stroke, 30 mm adjustment, PT G3/8 port, and the correct mounting accessory. Remember that the rear adjuster functions strictly as a travel stop, not a lock. The SAIJ does not hold loads without live air pressure; for fail-safe load holding, select the SAIL or BSAI series 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 SAIJ80AX275-30 FAQ
A rear stopper screw lets you shorten the nominal 275 mm stroke by up to 30 mm, creating an adjustable 245-275 mm travel window. The adjuster acts on the retract end to set the position, but it is a stop, not a lock, and will not hold the load without continuous air pressure.
It operates at speeds of 30-800 mm/s and uses a PT G3/8 port.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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