This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X150TC, 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 SI200X150TC
The AirTAC SI200 Standard Cylinder SI200X150TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 150mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X150TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke150 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X150TC
- 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 SI200X150TC
The AirTAC SI200X150TC is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 150 mm stroke. Built with an extruded aluminum barrel and adjustable air cushions, it delivers 15708 N push force at 0.5 MPa through a G3/4 port. AirTAC replaced this legacy unit with the SAI200X150TC, a direct replacement sharing the exact ISO 15552 mounting interface, TC trunnion mount, M36x2 rod thread, and output force.
The SAI upgrade features a modernized piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. Note that this specific SKU lacks a magnet (-S) and cannot accept position sensors; the legacy SI family used CS1-B/DS1-B switches, while the SAI family supports current AirTAC sensors on magnetized variants.
Airtac SI200 Standard Cylinder SI200X150TC Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X150TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X150TC |
| Bore size | Ø200 mm |
| Stroke | 150 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 SAI200X150TC 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 SAI200X150TC 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 SI200X150TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×150 | 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 SI200X150TC Is Used
Heavy Stamp Pressing
Drives large stamping dies requiring high force, using the 15708 N push at 0.5 MPa to form heavy-gauge metal components.
Large Clamp Fixturing
Secures oversized workpieces in machining cells via the TC trunnion mount, absorbing side loads during heavy milling operations.
Replacing the Airtac SI200 Standard Cylinder SI200X150TC with the SAI200X150TC
To replace the discontinued SI200X150TC, order the SAI200X150TC. Confirm the ISO 15552 TC trunnion mounting interface, 200 mm bore, 150 mm stroke, G3/4 port, and M36x2 rod thread. Because this SKU has no magnet, it cannot support sensors; if position detection is needed, specify a magnetized SAI variant. When sizing, note the 15708 N push at 0.5 MPa; if downsizing to a 160 mm bore (10053 N push) is considered, verify the load capacity, or step up pressure to 0.7 MPa for 21991 N. A plain double-acting cylinder does not hold load on air loss—the cushion only decelerates—so for vertical or suspended loads, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. Operating speed is 30-500 mm/s.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X150TC
- ✓ 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 SI200X150TC FAQ
Yes, the SI200X150TC is discontinued. The direct replacement is the SAI200X150TC. It shares the same ISO 15552 mounting interface, 200 mm bore, 150 mm stroke, G3/4 port, and force ratings, fitting directly into existing TC trunnion fixtures.
It features a G3/4 air port and delivers 15708 N push and 15080 N pull at 0.5 MPa. At 0.7 MPa it pushes 21991 N, and at 0.9 MPa it pushes 28274 N. The theoretical maximum force is 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X150TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X150TC replacement — usually within 7-8 hours.