This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X950, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI200 Standard Cylinder SI200X950
The AirTAC Airtac SI200 Standard Cylinder SI200X950 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 950mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X950, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke950 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X950
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI200 Standard Cylinder SI200X950
The AirTAC SI200X950 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 950mm stroke. It delivers 15708 N push force at 0.5 MPa and uses a G3/4 port. AirTAC replaced it with the SAI200X950, a direct replacement sharing the exact ISO 15552 mounting interface, bore, stroke, output force, and accessories.
Because this specific SKU lacks a magnet, it cannot accept a position sensor. The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. For load holding, note that the standard cushion only decelerates; you need the SAIL lock variant or an external rod lock.
Airtac SI200 Standard Cylinder SI200X950 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X950 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X950 |
| Bore size | Ø200 mm |
| Stroke | 950 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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 standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI200X950 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / 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 | |
The SAI200X950 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI200 Standard Cylinder SI200X950
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×950 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI200 Standard Cylinder SI200X950 Is Used
Heavy Stamping Press
Drives large heavy-duty stamping presses requiring massive 15708 N push force at 0.5 MPa over a 950mm travel distance.
Large Assembly Fixture
Expands and retracts large welding or assembly fixtures needing the full 950mm stroke and 3204 kgf max theoretical force.
Replacing the Airtac SI200 Standard Cylinder SI200X950 with the SAI200X950
To replace the discontinued SI200X950, order the SAI200X950. Confirm the ISO 15552 mounting interface, the 950mm stroke, and the G3/4 port. This non-magnetic SKU cannot take a switch; if sensing is needed, specify an SAI200X950S. Sizing down, a 160mm bore yields 10053 N at 0.5 MPa; sizing up is not available. For the 950mm stroke, use external guides to prevent rod bending and side-load damage. The cushion only decelerates; for held loads use the SAIL or BSAI lock variant, or a pilot check valve. The SAI family also offers the SAIF valve variant (bores 32-100) which this 200mm bore lacks.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X950
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI200 Standard Cylinder SI200X950 FAQ
Yes, the AirTAC SI200X950 is discontinued. The direct replacement is the SAI200X950. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 950mm stroke, force, G3/4 port, and mounting interface.
It features a G3/4 port and delivers 15708 N push and 15080 N pull at 0.5 MPa. At 0.7 MPa push is 21991 N, at 0.9 MPa it is 28274 N, and the theoretical max force is 3204 kgf at 1.0 MPa. The speed range is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X950
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X950 replacement — usually within 7-8 hours.