Airtac SAIJ200 Adjustable Cylinder SAIJ200X85-75S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X85-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 85mm 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
- Stroke85 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 SAIJ200X85-75S
The AirTAC SAIJ200X85-75-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers massive thrust, pushing with 15708N and pulling with 15080N at 0.5 MPa. The built-in adjustment mechanism allows you to trim the nominal 85mm stroke back by up to 75mm, creating a highly versatile usable travel window of 10 to 85mm without changing the physical unit.
Equipped with a carbon steel rod and PT tapered port threads, this 200mm bore profile cylinder integrates seamlessly into existing setups. The extruded aluminum barrel features sensor grooves on both sides, and the included magnet (-S) works directly with AirTAC CMSE reed and DMSE electronic solid-state switches for precise end-of-stroke detection.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X85-75S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X85-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 85 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 SAIJ200X85-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×85 | 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 SAIJ200X85-75S Is Used
Heavy Press Tuning
Dial in the exact end position during heavy press commissioning by adjusting the stroke from 85mm down to 10mm without swapping cylinders or adding external stopper blocks.
Product Changeover
Adapt quickly to new product sizes on a high-force assembly line by adjusting the retract stroke stop, saving time during machinery reconfiguration.
Variable End Stops
Set precise retract positions for heavy-duty clamping or forming operations, using the rear stopper to define the working window anywhere between 10 and 85mm.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X85-75S the Right Cylinder?
Select this 200mm bore cylinder when an application demands extreme force alongside variable end-stop positioning, such as heavy press setups requiring fine-tuning at commissioning. The rear adjuster screw acts purely as a travel stop to set the retract position, not a lock, so it will not hold the load without live air pressure. For secure load-holding without continuous air supply, consider an AirTAC SAIL or BSAI cylinder.
When replacing an ISO 15552 cylinder, match the 200mm bore, 85mm nominal stroke, 75mm adjustment range, PT G3/4 port, and the -S magnet requirement. The SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the stroke is relatively short at 85mm, side-load stress on the 40mm rod is minimal compared to longer strokes, but external guides are still recommended for heavy off-center loads.
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 SAIJ200X85-75S FAQ
It can reach a maximum push force of 3204 kgf at 1.0 MPa.
The rear adjuster screw lets you mechanically shorten the 85mm nominal stroke by up to 75mm, providing a usable travel window of 10 to 85mm. This allows fine-tuning of the retract end position at commissioning without replacing the cylinder.
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