Airtac SAIJ200 Adjustable Cylinder SAIJ200X80-50
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X80-50 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 SAIJ200X80-50
It features a robust 40mm carbon steel rod and a G3/4 PT tapered port to handle high airflow demands. By integrating a rear mechanical stopper, this model provides an adjustable usable travel window of 30 to 80mm, allowing you to dial in the exact end position without swapping out the entire unit.
This fine-tuning capability is invaluable during product changeovers or commissioning, eliminating the need to bolt on external stops. The adjuster acts purely as a travel stop and works in tandem with the 50mm variable air cushions at both ends to decelerate massive loads smoothly. It is dimensionally interchangeable per ISO 15552 and utilizes a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X80-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X80-50 |
|---|---|
| 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 SAIJ200X80-50
| 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 SAIJ200X80-50 Is Used
Heavy Press Tuning
Dial in the exact 30 to 80mm retraction depth on heavy stamping or pressing equipment to accommodate varying material thicknesses without changing tooling.
Product Changeovers
Rapidly adjust the end-stop position on automated lines during format size changes, minimizing downtime and avoiding the need to physically swap out cylinders.
Assembly Calibration
Fine-tune the final seating position of heavy components during automated assembly commissioning, ensuring perfect alignment without external mechanical stops.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X80-50 the Right Cylinder?
Selecting this 200mm bore cylinder is appropriate when your application requires extreme thrust, such as 21991N at 0.7 MPa, alongside precise positioning flexibility. If your force requirements are lower, stepping down to a 160mm bore yields 10053N at 0.5 MPa, which may reduce air consumption. The SAIJ200X80-50 is chosen over a fixed-stroke SAI when the final retracted position needs on-the-fly calibration. Because the stroke is relatively short at 80mm, side-load risks are minimized, though the heavy 40mm rod thread still demands proper alignment.
For an exact ISO 15552 replacement match, verify the 200mm bore, 80mm nominal stroke, 50mm adjustment range, G3/4 PT port, and your required mounting bracket. Note that this standard configuration lacks a magnet; adding a -S suffix enables CMSE reed and DMSE electronic sensors via the dual-side sensor grooves. Remember that the rear adjuster is a stop, not a lock; if the machine requires load-holding without live air pressure, specify an AirTAC SAIL or BSAI cylinder instead.
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 SAIJ200X80-50 FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to trim the effective stroke back by up to 50mm. This creates a usable travel window of 30 to 80mm from the 80mm nominal stroke, enabling precise end-position tuning at commissioning without replacing the cylinder.
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