This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X950SLB, 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 SI200X950SLB
The AirTAC SI200 Standard Cylinder SI200X950SLB 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 SAI200X950SLB, 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 → SAI200X950SLB
- 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 SI200X950SLB
The AirTAC SI200X950SLB is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 950mm stroke. It delivers 15708N push at 0.5MPa via a G3/4 port. AirTAC replaced this legacy unit with the SAI200X950SLB, a direct replacement retaining the exact ISO 15552 mounting interface, LB foot mount, M36x2 rod thread, and output force.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The original SI includes a magnet for CS1-B/DS1-B sensors, whereas the SAI family also introduces BSAI clamp-lock and SAIL air-released lock variants absent in the SI line.
Airtac SI200 Standard Cylinder SI200X950SLB Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X950SLB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X950SLB |
| 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 SAI200X950SLB 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 SAI200X950SLB 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 SI200X950SLB
| 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 SI200X950SLB Is Used
Heavy Press Systems
Drives large forming presses requiring 15708N push force at 0.5MPa, utilizing the adjustable 50mm cushion to decelerate heavy masses.
Bulk Material Diversion
Actuates large-scale diverters on heavy-duty conveyors, where the 200mm bore provides the necessary thrust to move obstructed goods.
Replacing the Airtac SI200 Standard Cylinder SI200X950SLB with the SAI200X950SLB
To replace the SI200X950SLB, order the SAI200X950SLB. Confirm the ISO 15552 interface, 200mm bore, 950mm stroke, G3/4 port, LB foot mounting, and the -S magnet for position sensing. If sizing down, a 160mm bore yields 10053N at 0.5MPa; if sizing up, no larger standard profile bore exists, but pressure can be raised to 0.7MPa for 21991N. Because the 950mm stroke invites rod bending, use external guides to prevent side loads. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding, or specify an SAIL or BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X950SLB
- ✓ 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 SI200X950SLB FAQ
Yes, the SI200X950SLB is discontinued. The direct replacement is the SAI200X950SLB. It is dimensionally interchangeable per ISO 15552, matching the 200mm bore, 950mm stroke, output force, G3/4 port, and LB mounting interface.
The 200mm bore delivers 15708N push and 15080N pull at 0.5MPa, 21991N push at 0.7MPa, 28274N push at 0.9MPa, and a theoretical max of 3204kgf at 1.0MPa. Operating speed is 30-500mm/s, with a 50mm adjustable air cushion at both ends.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X950SLB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X950SLB replacement — usually within 7-8 hours.