Airtac SAIJ200 Adjustable Cylinder SAIJ200X80-40S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X80-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 80mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke80 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200X80-40S
The AirTAC SAIJ200X80-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical stroke adjuster. The built-in rear stopper provides a usable travel window between 40mm and 80mm, allowing operators to dial in the exact end-of-stroke position without installing external physical stops.
This extruded aluminum profile cylinder includes a magnet for CMSE reed and DMSE electronic sensors, which mount directly into the sensor grooves on both sides of the barrel. It uses a robust 40mm carbon steel rod with an M36x2 thread, providing high structural rigidity. The unit is designed for 30-500 mm/s operating speeds and includes variable air cushions at both ends to decelerate the heavy 3204 kgf maximum load.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X80-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X80-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 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 (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200X80-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×80 | 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 SAIJ200 Adjustable Cylinder SAIJ200X80-40S Is Used
Heavy Press Fine-Tuning
Dial in the exact 40-80mm contact travel on heavy stamping or forming presses during setup, allowing precise end-position tuning without swapping out the entire cylinder.
Product Changeover Stops
Quickly adjust the end-stop distance on automated packaging lines when switching between different large-format product sizes, using the 40mm rear adjuster to adapt the stroke window.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X80-40S the Right Cylinder?
The adjustable 40mm window is ideal for product changeovers on large equipment, letting you fine-tune the end position at commissioning rather than machining custom spacer blocks. For applications needing to hold a load in place without continuous live air pressure, this cylinder is not suitable; the rear adjuster is a travel stop, not a locking device, so you should specify an AirTAC SAIL or BSAI series instead.
To match this exact configuration for an ISO 15552 footprint replacement, specify a 200mm bore, 80mm stroke, 40mm adjustment range, PT tapered port threads, and a -S magnet. Even though the 80mm stroke is short, the massive 40mm rod diameter and extreme output forces mean you must ensure the external mounting structure and guided load carriage can handle the high kinetic energy without side-loading the rod seals.
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 SAIJ200 Adjustable Cylinder SAIJ200X80-40S FAQ
At the maximum 1.0 MPa operating pressure, it can deliver up to 3204 kgf.
The rear external stopper screw allows you to mechanically shorten the 80mm nominal stroke by up to 40mm, providing an adjustable travel window between 40mm and 80mm. This stopper only sets the travel end and does not lock the load without live air pressure.
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