Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 145mm 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
- Stroke145 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-75
The AirTAC SAIJ80X145-75 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 2513N of push force at 0.5 MPa and features a wide usable travel window of 70 to 145 mm, letting you dial back the nominal 145 mm stroke by up to 75 mm during commissioning. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
A defining feature of this SKU is its capacity for rapid product changeovers without swapping the cylinder or adding external stops. The rear adjustment screw acts purely as a travel stop to set the retract end-position, meaning it does not hold the load without live air pressure. For position holding without continuous pressure, consider the related SAIL or BSAI series. This 80 mm bore uses a 25 mm carbon steel rod with an M20x1.5 thread, providing robust resistance to side loading.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 145 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 SAIJ80X145-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×145 | 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 SAIJ80X145-75 Is Used
Product Changeovers
Quickly adapt the retract position for different package lengths on a packaging line without physically replacing the actuator or adding mechanical shims.
Commissioning Fine-Tuning
Dial in the exact 70 to 145 mm end-stop during machine setup to perfect timing and kinematics without disassembling the pneumatic circuit.
Variable End Stops
Provide a mechanical stop for machining or clamping operations where the target depth varies between workpieces on the same fixture.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-75 the Right Cylinder?
Choose this 80 mm bore when an application requires 2513N of push force at 0.5 MPa, or step down to a 63 mm bore (1559N) if the load is lighter and you need a smaller footprint. The SAIJ80X145-75 is selected specifically when a 70 to 145 mm travel window is needed to accommodate varying product sizes on a single line, functioning as a built-in end-stop rather than requiring a fixed-stroke SAI cylinder. The PT tapered port threads ensure a tight, reliable air connection.
Because the rear adjuster and built-in air cushions only decelerate the load at the travel end, this cylinder cannot hold a load without live air. If your setup demands fail-safe load holding, use an external rod lock or pilot-operated check valve. Mounting options are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR mounts found on other variants.
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 SAIJ80X145-75 FAQ
At 0.5 MPa it provides 2513N of push force and 2268N of pull force. The standard operating speed range for this 80 mm bore is 30-800 mm/s, driven by a G3/8 port.
The rear adjuster screw lets you mechanically shorten the effective stroke from 145 mm down to 70 mm. It acts as a hard travel stop for end-position tuning, but it is not a lock and will not hold the load without live air pressure.
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 SAIJ80X145-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.