Airtac SAIJ80 Adjustable Cylinder SAIJ80X20-20
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X20-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 20mm 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
- Stroke20 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X20-20
The AirTAC SAIJ80X20-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 0-20 mm usable travel window, allowing you to dial back the nominal 20 mm stroke to an exact zero-position without adding external stops. The 80 mm bore delivers 2513 N of pull force at 0.5 MPa, making it robust enough for heavy clamping tasks.
This extruded aluminum profile cylinder omits the FB, CA, CB, and CR mounting styles, utilizing a reduced set (Basic, FA, LB, TC, FTC, TCM1, TCM2) for targeted machine integration. The 25 mm carbon steel rod and M20x1.5 thread offer high rigidity, while the PT tapered port ensures a tight, leak-free pneumatic connection.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X20-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X20-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 20 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 SAIJ80X20-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×20 | 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 SAIJ80X20-20 Is Used
Precision Clamping
Dial in the exact 0-20 mm clamping depth on heavy machined parts without swapping out cylinders or repositioning external physical stops.
Machine Changeovers
Quickly adjust the retract end-position during production line size changes to accommodate varying product dimensions on the fly.
Assembly Station Setup
Fine-tune the stroke during initial commissioning to perfect the seating force of heavy components, preventing over-travel damage.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X20-20 the Right Cylinder?
Select this 80 mm bore model when a process requires substantial force—stepping down to a 63 mm bore drops the 0.5 MPa pull force to 1402 N, whereas stepping up to a 100 mm bore yields 3681 N. Choose this adjustable-stroke variant over a fixed SAI cylinder when you need to fine-tune the retract end-position during commissioning or product-size changeovers.
Because the rear adjuster acts only as a travel stop and the air cushions manage deceleration, this cylinder cannot hold a load without live air pressure. For fail-safe load holding, consider an AirTAC SAIL, BSAI, or an external pilot-operated check valve. To match this ISO 15552 footprint, specify the 80 mm bore, 20 mm stroke, 20 mm adjustment, G3/8 PT port, and your required mounting bracket.
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 SAIJ80X20-20 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder generates 2513 N of pull force and 2513 N of push force. At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw lets you mechanically shorten the 20 mm nominal stroke anywhere within a 0-20 mm usable window. It functions as a hard travel stop for end-position tuning and is not a lock, meaning the cylinder requires live air to hold the load.
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 SAIJ80X20-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.