Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-10
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 185mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke185 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-10
The AirTAC SAIJ200X185-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 15708N of thrust at 0.5 MPa. It provides a usable travel window of 175-185mm, allowing you to dial back the nominal 185mm stroke by up to 10mm during machine setup. This fine-tuning capability eliminates the need to swap out the entire actuator or bolt on external stoppers when aligning heavy end-of-stroke positions.
Built for demanding environments, this specific configuration features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and uses PT tapered port threads with a G3/4 connection. The extruded aluminum barrel includes sensor grooves on both sides for straightforward switch mounting. While the rear screw and variable air cushions effectively decelerate the load at travel end, neither component acts as a lock; maintaining position without live air requires an external rod lock or a related SAIL pneumatic locking cylinder.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-10 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 185 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 | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×185 | 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 SAIJ200AX185-10 Is Used
Heavy Press Fine-Tuning
Dial in the exact 175-185mm end position on high-tonnage pressing operations without machining custom spacers or changing the actuator.
Product Size Changeover
Quickly adjust the stroke end by up to 10mm on automated lines processing slightly different product dimensions.
Commissioning Alignment
Trim the effective travel during initial machine commissioning to perfectly align heavy tooling without external stopper hardware.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-10 the Right Cylinder?
Selecting this 200mm bore actuator is appropriate when an application demands substantial push force, generating 15708N at just 0.5 MPa and up to 28274N at 0.9 MPa. If your setup does not require this magnitude of force, stepping down to a 160mm bore yields 10053N at 0.5 MPa, whereas moving up is not possible within this standard profile series. The 10mm adjustable window is ideal for precise commissioning and minor product changeovers, offering more setup flexibility than a fixed-stroke SAI cylinder.
Because the 185mm stroke is relatively short for this large bore, side-load risks are minimal, though the robust 40mm rod and M36x2 thread handle significant mechanical stress. To achieve a true drop-in replacement, match the 200mm bore, 185mm stroke, 10mm adjustment, PT ports, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that FB, CA, CB, and CR mounts are omitted from this series. As no magnet is specified, position sensing via CMSE or DMSE switches is not supported on this unit.
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 SAIJ200AX185-10 FAQ
At 0.5 MPa it provides a push force of 15708N and a pull force of 15080N. At 0.9 MPa, the push force increases to 28274N.
A rear adjusting screw acts as a stopper, allowing you to shorten the effective travel from the nominal 185mm down to a minimum of 175mm. It sets the end position but does not lock the load without live air pressure.
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