Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-40
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 200mm 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
- Stroke200 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-40
The AirTAC SAIJ80X200-40 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 2513 N push force at 0.5 MPa, making it suitable for heavy-duty handling. By turning the external stopper screw, you can trim the effective travel anywhere within a 160 to 200 mm window, providing exact end-position tuning without swapping hardware.
This 80 mm bore unit features a 25 mm carbon steel rod and a PT tapered G3/8 port. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible switch placement. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR configurations.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 200 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 SAIJ80X200-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×200 | 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 SAIJ80X200-40 Is Used
Product Changeovers
Quickly modify the 160-200 mm stroke window to accommodate different carton sizes on a packaging line without changing the cylinder.
Machine Setup
Fine-tune the retract end-position during initial commissioning to achieve precise mechanical alignment without external shims.
Variable End Stops
Dial in the exact stopping point for diverter arms or gating mechanisms handling heavy loads on a material handling conveyor.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-40 the Right Cylinder?
Select this 80 mm bore model when your application requires more thrust than a 63 mm cylinder (which provides 1559 N push at 0.5 MPa) but less than a 100 mm unit (3927 N). The adjustable 160-200 mm travel window is ideal for product changeovers on a packaging line, allowing you to dial in the retract end-stop during commissioning rather than machining external stops. For fixed travel without the adjuster, the standard SAI series is the alternative.
Because the 200 mm stroke is below the 300 mm threshold, side-load risks are moderate, though the 25 mm rod helps handle deflection. Keep in mind the rear adjuster acts only as a travel stop, not a lock; the cylinder cannot hold a load without live air. For position holding, consider the SAIL or BSAI series. This configuration uses a PT port, carbon steel rod, and no sensor magnet.
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 SAIJ80X200-40 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster screw allows you to shorten the nominal 200 mm stroke by up to 40 mm, creating a usable travel window of 160 to 200 mm. This stopper only sets the end position and does not lock the load without air pressure.
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