Airtac SAIJ80 Adjustable Cylinder SAIJ80AX70-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX70-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 70mm 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
- Stroke70 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX70-50S
The AirTAC SAIJ80X70-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 50 mm. This creates a usable 20-70 mm stroke window, letting you fine-tune the retract end position at commissioning without swapping hardware. Driven by a G3/8 port, it delivers a robust 2268N pull force at 0.5 MPa.
This variant includes a -S magnet for position sensing with AirTAC CMSE reed or DMSE electronic switches, fitting into the dual-side sensor grooves. It uses a SUS420J2 stainless steel rod (material A) for corrosion resistance and features PT tapered port threads. The SAIJ mounting set omits FB, CA, CB, and CR brackets, utilizing Basic, FA, LB, TC, FTC, TCM1, and TCM2 interfaces.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX70-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX70-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 70 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 SAIJ80AX70-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×70 | 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 SAIJ80AX70-50S Is Used
Variable End-Stop Tuning
Dial in the exact 20 to 70 mm retract distance during machine commissioning to accommodate multiple product sizes on the same line without adding external stopper blocks.
Clamp Position Setup
Adjust the clamping depth precisely on the fly for different material thicknesses, leveraging the 2513N push force at 0.5 MPa for secure holding.
Sensor-Driven Changeover
Utilize the integrated magnet with DMSE electronic sensors to confirm the adjusted end position automatically during automated product format changes.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX70-50S the Right Cylinder?
Choose this 80 mm bore when an application requires substantial thrust—such as the 2268N pull at 0.5 MPa—but demands a highly variable end-stop. Stepping down to a 63 mm bore drops the pull force to 1402N, while moving up to a 100 mm bore yields 3681N. The 50 mm adjustment range on this 70 mm nominal stroke provides maximum flexibility for product changeovers. Because the rear adjuster and air cushions only decelerate the travel, they cannot hold a load without live air; for fail-safe load holding, select a SAIL or BSAI cylinder instead.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 70 mm stroke, 50 mm adjustment, G3/8 PT ports, and the desired mounting bracket. Although the 25 mm rod and M20x1.5 thread handle excellent side loads, any stroke over 300 mm would require an external guide; at 70 mm, the rod is inherently rigid enough for standard loads.
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 SAIJ80AX70-50S FAQ
It features a rear mechanical stopper screw that lets you shorten the nominal 70 mm stroke by up to 50 mm, providing a usable travel window of 20 to 70 mm. The adjuster acts as a physical stop and does not lock the load without continuous air pressure.
At 0.5 MPa operating pressure, the SAIJ80X70-50-S provides 2513N of push force and 2268N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
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 SAIJ80AX70-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.