Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 210mm 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
- Stroke210 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-50S
The AirTAC SAIJ80X210-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 160 to 210 mm, allowing you to dial back the nominal stroke by up to 50 mm during commissioning. Equipped with a carbon steel rod and a -S magnet, it supports CMSE reed and DMSE electronic sensors via the dual-side barrel grooves.
In the 80 mm bore class, this cylinder generates 2513 N of push force and 2268 N of pull force at 0.5 MPa. The rear adjuster acts strictly as a travel stop to set the end position; it does not lock or hold the load without live air pressure. For load-holding requirements, an external rod lock or SAIL series cylinder is required.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 210 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 SAIJ80X210-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×210 | 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 SAIJ80X210-50S Is Used
Variable End-Stop Positioning
Dial in the exact retract distance within the 160-210 mm window for precision assembly presses without changing hardware.
Machine Changeover
Quickly reconfigure the stroke end-point on a packaging line when switching to a different product size.
Sensor-Ready Automation
Leverage the -S magnet with DMSE solid-state sensors for reliable end-of-stroke detection in high-speed environments.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-50S the Right Cylinder?
Choose this 80 mm bore when your application requires around 2500 N of thrust at 0.5 MPa, stepping up from a 63 mm bore that provides 1559 N. The 50 mm adjustment range is ideal for product changeovers where the exact end-of-stroke position varies, eliminating the need to physically swap cylinders or bolt on external stops. The PT-tapered G3/8 port matches the bore's flow requirements.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 210 mm stroke, 50 mm adjuster, and -S magnet. Mounting options include the reduced SAIJ set: Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 210 mm stroke approaches the mid-range for this bore, ensure proper guidance to prevent excessive side-loading on the M20x1.5 rod thread.
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 SAIJ80X210-50S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. It can deliver up to 4523 N of push force at 0.9 MPa.
The external rear adjusting screw allows you to shorten the effective stroke by up to 50 mm, creating a usable travel window between 160 and 210 mm. The adjuster acts as a mechanical stop to fine-tune the end position and does not function as a lock to hold the load without air pressure.
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