Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-30
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 120mm 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
- Stroke120 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-30
The AirTAC SAIJ200X120-30 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications requiring precise end-position tuning. Equipped with a rear adjusting stopper, it allows you to dial back the nominal 120 mm stroke by up to 30 mm, creating a flexible 90-120 mm usable travel window. This means you can fine-tune the retract position during commissioning or product changeovers without swapping out the entire cylinder or adding external stops. Delivering a robust 21991 N of push force at 0.7 MPa, it is built for substantial loads.
This unit features a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and uses PT tapered port threads for a reliable pneumatic connection. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic sensors, though this specific SKU is not configured with a magnet. The rear adjuster functions strictly as a travel stop to set the end position and relies on the integrated variable air cushions to decelerate the load; it is not a lock and will not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-30 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 120 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 SAIJ200AX120-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×120 | 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 SAIJ200AX120-30 Is Used
Press Tonnage Calibration
Dial in the exact 90-120 mm retract distance during press setup to accommodate different material thicknesses without changing tooling.
Product Line Changeover
Quickly adjust the end-stop position on a packaging line when switching to a new product size, saving hours of mechanical reconfiguration.
Heavy Assembly Positioning
Fine-tune the retract point of a 21991 N push assembly to ensure components mate perfectly without over-traveling.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-30 the Right Cylinder?
Selecting the SAIJ200X120-30 is ideal when your machine setup requires exact end-position calibration across a 90 to 120 mm window, replacing the need for a fixed-stroke SAI cylinder and external mechanical stops. It provides massive thrust, pushing 21991 N at 0.7 MPa and pulling 15080 N at the same pressure. If your application requires slightly less force, stepping down to a 160 mm bore yields 14074 N of push force at 0.7 MPa. Because this cylinder features a 120 mm stroke, which is below the 300 mm threshold, side-load stress is moderate, but an external guide is still recommended for heavy off-center loads.
When matching this ISO 15552 interchangeable cylinder for a replacement, verify the 200 mm bore, 120 mm nominal stroke, 30 mm adjustment range, PT port thread, and the specific mounting accessory set. SAIJ supports a reduced mounting subset including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. Remember that neither the rear adjuster nor the air cushions act as a brake; for true load-holding without live air, consider the SAIL air-released lock, BSAI clamp-lock, or an external rod lock.
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 SAIJ200AX120-30 FAQ
At a 0.7 MPa operating pressure, this 200 mm bore cylinder generates 21991 N of push force and 15080 N of pull force. At the maximum 1.0 MPa pressure, the push force reaches 28274 N.
The rear adjusting screw acts as a mechanical stopper that lets you shorten the effective stroke from the nominal 120 mm down to as little as 90 mm. This creates a 90-120 mm travel window for fine-tuning the retract end position at commissioning without swapping the cylinder.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-30
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.