Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 950mm 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
- Stroke950 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-20S
The AirTAC SAIJ200X950-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 930-950 mm, allowing you to dial back the 950 mm nominal stroke by up to 20 mm during commissioning without adding external stops. Built with a SUS420J2 stainless steel rod and a PT tapered port, it handles heavy-duty forces up to 28274 N at 0.9 MPa. The extruded aluminum barrel includes sensor grooves on both sides for CMSE and DMSE switches.
This adjustable-stroke model uses a rear screw mechanism that acts as a travel stop to fine-tune the end position, but it is not a lock and will not hold the load without live air pressure. It supports a speed range of 30-500 mm/s and features adjustable air cushions at both ends to manage kinetic energy. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 950 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 SAIJ200AX950-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×950 | 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 SAIJ200AX950-20S Is Used
Heavy Press Fine-Tuning
Dial in the exact 930-950 mm end-stop during press setup to accommodate varying material thicknesses without swapping cylinders.
Product Changeover Systems
Adjust the rear stopper quickly when switching product sizes on a high-thrust conveyor line, saving setup time.
Large Assembly Jigs
Use the 28274 N push force to seat large components, relying on the 20 mm adjustment window for precise jig alignment.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-20S the Right Cylinder?
Choose this 200 mm bore cylinder when your application demands massive thrust, such as 28274 N push force at 0.9 MPa, and requires precise end-position tuning. The 20 mm adjustment window is perfect for product changeovers on a line where exact positioning is critical. If you need less force, stepping down to a 160 mm bore yields 18095 N push at 0.5 MPa, while moving up is not possible as this is the largest standard frame.
Because the 950 mm stroke is long, the 40 mm rod diameter and M36x2 thread provide rigidity, but an external guide is still recommended to prevent excessive side-loading. For holding loads without live air, this cylinder is insufficient; consider the SAIL or BSAI series instead. This SAIJ variant is dimensionally interchangeable per ISO 15552 and includes a magnet for CMSE reed and DMSE electronic sensors.
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 SAIJ200AX950-20S FAQ
The rear adjuster screw lets you shorten the effective travel from the 950 mm nominal stroke down to 930 mm, providing a 20 mm fine-tuning window. It acts as a physical stop for the retract end and does not lock the load without air pressure.
At 0.9 MPa, this 200 mm bore cylinder generates a push force of 28274 N and a pull force of 15080 N. It operates at speeds between 30 and 500 mm/s.
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