Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-100
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-100 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 SAIJ200AX185-100
The AirTAC SAIJ200X185-100 is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty tasks, delivering 15708N of push force at 0.5 MPa. It features a 40mm piston rod and a PT G3/4 port. An external rear adjuster allows you to trim the 185mm nominal stroke back by up to 100mm, creating an exact 85-185mm usable travel window for highly flexible machinery setup.
This unit incorporates a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides. You can mount CMSE reed or DMSE electronic sensors if position detection is added later, though this specific SKU ships without a magnet.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-100 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-100 |
|---|---|
| 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 SAIJ200AX185-100
| 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 SAIJ200AX185-100 Is Used
Heavy Machinery Positioning
Dial in the exact 85-185mm end-stop during heavy press or stamping machine commissioning without swapping out the entire actuator.
Product Size Changeovers
Quickly adapt a production line for different product heights by rotating the rear adjuster to trim the stroke up to 100mm on the fly.
Variable End-Stop Assembly
Achieve precise deceleration and final positioning for large-scale assembly stations using the integrated rear stopper combined with standard air cushions.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-100 the Right Cylinder?
Choose this 200mm bore actuator when your application requires substantial thrust, such as 21991N at 0.7 MPa, alongside variable end-position tuning. If your setup does not need the maximum 100mm adjustment range, stepping down to a 160mm bore yields 10053N at 0.5 MPa and might better suit mid-range loads. Because the 185mm stroke is under the 300mm threshold, side-load stress is moderate, but the heavy 40mm rod still requires proper external guiding to prevent binding.
The rear adjustment screw acts purely as a travel stop to fine-tune deceleration and end positions during commissioning; it does not lock or hold the load without continuous air pressure. For load-holding requirements, consider an AirTAC SAIL pneumatic lock or a BSAI clamp-lock cylinder. This SAIJ model supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR options.
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 SAIJ200AX185-100 FAQ
The rear external adjuster acts as a mechanical stopper that lets you shorten the effective travel from the 185mm nominal stroke down to as little as 85mm. This provides a 100mm tuning window to fine-tune the retract end position without adding external stops.
At a 0.5 MPa operating pressure, it provides 15708N of push force and 15080N of pull force. If you increase the pressure to 0.7 MPa, the push force rises to 21991N.
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