Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-75
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 180mm 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
- Stroke180 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-75
The AirTAC SAIJ200X180-75 is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical adjuster, allowing you to dial back the nominal 180 mm stroke by up to 75 mm. This yields a highly flexible 105-180 mm usable travel window, perfect for fine-tuning retract end positions during commissioning without swapping out the barrel or adding external stops. Built to deliver immense thrust, this 200 mm bore generates 21991 N of push force at 0.7 MPa while pulling with 15080 N. The piston rod utilizes SUS420J2 stainless steel (code A) for excellent corrosion resistance, and the fluid supply routes through PT tapered ports.
This adjustable unit operates at speeds of 30-500 mm/s and features variable air cushions at both ends to manage deceleration. The rear adjuster functions purely as a travel stop to set the end position; it does not lock or hold the load without continuous live air pressure. For load-holding requirements, consider the SAIL or BSAI variants. The extruded aluminum barrel includes sensor grooves on both sides, ready to host CMSE reed or DMSE electronic sensors if a magnet is specified, and supports a dedicated mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 180 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 SAIJ200AX180-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×180 | 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 SAIJ200AX180-75 Is Used
Variable End-Stop Calibration
Dial in the exact 105-180 mm retract distance during machine commissioning to accommodate varying material thicknesses without disassembling the pneumatic circuit.
Product Changeover Systems
Rapidly adjust the stroke stop on a production line when switching to a new product size, using the 75 mm trim range to handle multiple part families on one fixture.
Heavy-Duty Positioning
Leverage the 21991 N push force at 0.7 MPa to move heavy tooling into a precisely tuned end position, relying on the rear screw for repeatable mechanical stops.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-75 the Right Cylinder?
Choose this 200 mm bore when your application demands maximum output, stepping up from a 160 mm bore that provides 14074 N of push force at 0.5 MPa. The SAIJ200X180-75 is selected specifically when the exact retract distance is unknown at the design stage or varies between product runs, allowing up to 75 mm of mechanical trim without replacing the cylinder. Because the adjuster acts only as a stop, any load holding without live air requires an external rod lock or a switch to the BSAI clamp-lock series.
When integrating this ISO 15552 dimensionally interchangeable cylinder, verify your setup matches the following configuration: a 200 mm bore, 180 mm stroke with a 75 mm adjustment range, PT tapered ports, SUS420J2 stainless steel rod material, and no integrated magnet. Ensure your mounting choice falls within the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2), 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 SAIJ200AX180-75 FAQ
At an operating pressure of 0.7 MPa, this 200 mm bore double-acting cylinder generates 21991 N of push force and 15080 N of pull force. It reaches a maximum push force of 28274 N at 0.9 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the 180 mm nominal stroke by up to 75 mm, providing a usable travel window of 105 to 180 mm. It only sets the end position and does not hold the load without live air pressure.
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