Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-50
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-50 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 SAIJ200AX950-50
The AirTAC SAIJ200X950-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits a usable travel window of 900 to 950 mm. It delivers massive thrust, pushing 15708 N and pulling 15080 N at 0.5 MPa, scaling up to 21991 N push at 0.7 MPa. This bore size carries a robust 40 mm rod and M36x2 thread, providing excellent structural rigidity.
This unit uses a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance over standard carbon steel. It features PT tapered port threads and omits the magnet option. The extruded aluminum barrel includes sensor grooves on both sides, and the unit supports mounting options Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-50 |
|---|---|
| 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 SAIJ200AX950-50
| 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 SAIJ200AX950-50 Is Used
Heavy Press Setup
Dial in the exact 900 to 950 mm end-position during heavy press commissioning without adding external mechanical stops.
Product Line Changeover
Quickly adapt a high-force automated line to different product lengths by adjusting the rear stopper screw.
Large Material Handling
Index heavy pallets or structural materials, using the variable travel window to fine-tune the stopping distance.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-50 the Right Cylinder?
Select this 200 mm bore when an application requires extreme force combined with a variable end-stop, avoiding the need to physically swap cylinders during product changeover. If the 15708 N push at 0.5 MPa is excessive, stepping down to a 160 mm bore yields 10053 N. The rear adjuster acts purely as a travel stop and does not hold the load without live air; for true load-holding without pressure, consider an external rod lock or the SAIL and BSAI series.
Because the 950 mm stroke is long and unsupported, an external guide is strongly recommended to manage side loads and prevent rod binding. To match this exact ISO 15552 replacement, specify a 200 mm bore, 950 mm stroke, 50 mm adjustment range, PT ports, and the desired mounting from the reduced SAIJ set.
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 SAIJ200AX950-50 FAQ
At 0.5 MPa it provides 15708 N of push force and 15080 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 21991 N.
The rear adjuster screw acts as a mechanical stop, allowing you to trim the effective travel back from the 950 mm nominal stroke to any point within a 900 to 950 mm window. It is a stop, not a lock, and does not hold the load without live air.
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