Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-20
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 75mm 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
- Stroke75 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-20
The AirTAC SAIJ80X75-20 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 25 mm usable travel window, allowing you to dial the effective stroke back from 75 mm down to 55 mm. This fine-tuning capability is perfect for commissioning and product changeovers without swapping the cylinder or adding external stops. It delivers 2513 N of push force and 2268 N of pull force at 0.5 MPa.
This SKU features a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting. The 25 mm rod diameter and M20x1.5 thread handle side loads well, though external guides are still recommended for unsupported loads. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 75 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 SAIJ80AX75-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×75 | 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 SAIJ80AX75-20 Is Used
Machine Setup & Changeover
Dial in the exact 55-75 mm travel window during product size changes on a packaging line without physically swapping the cylinder or bolting on external stops.
Variable End-Stop Positioning
Fine-tune the retract end-position during commissioning to accommodate varying material thicknesses or tooling offsets on the fly.
Heavy-Duty Clamping
Leverage the 2513 N push force at 0.5 MPa to securely hold heavy workpieces, using the rear screw to set the precise clamping depth.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-20 the Right Cylinder?
Selecting this 80 mm bore cylinder makes sense when your application requires the 2513 N push force at 0.5 MPa (or 3518 N at 0.7 MPa) and a variable end-stop. If you need less force, the 63 mm bore offers 1559 N at 0.5 MPa. The adjustable 55-75 mm travel window is ideal for setups requiring precise end-position tuning at commissioning, unlike a fixed-stroke SAI cylinder. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
Because this is a double-acting cylinder, the rear adjuster and air cushions only set and decelerate the travel end. They do not function as a lock or brake. If your machine requires load-holding without live air pressure, consider the SAIL (air-released lock) or BSAI (clamp-lock) series instead. This model uses a PT port and has no magnet (-S not specified).
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 SAIJ80AX75-20 FAQ
It features a rear adjusting screw that acts as a mechanical stop, allowing you to shorten the effective stroke by up to 20 mm. This creates a usable travel window of 55 to 75 mm, enabling fine end-position tuning without replacing the cylinder.
At 0.5 MPa, it provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.