This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X100STC, 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 SI200X100STC
The AirTAC Airtac SI200 Standard Cylinder SI200X100STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 100mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X100STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke100 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X100STC
- 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 SI200X100STC
The AirTAC SI200X100STC is a discontinued double-acting ISO 15552 profile cylinder featuring a 200mm bore and 100mm stroke. Built with an extruded aluminum barrel, it delivers 15708 N of push force at 0.5 MPa and utilizes a G3/4 air port with a 40mm piston rod. AirTAC replaced this legacy unit with the SAI200X100STC, a direct upgrade retaining the exact ISO 15552 mounting interface, TC trunnion mount, and force class.
The SAI replacement introduces an upgraded piston seal utilizing two Y-shaped one-way elements for low start-up pressure and extended life. For demanding thermal environments, Viton H seal options raise the operating range to 0-150 C. The -S magnet on this unit supports legacy CS1-B/DS1-B sensors, while the SAI family uses current AirTAC switches.
Airtac SI200 Standard Cylinder SI200X100STC Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X100STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X100STC |
| Bore size | Ø200 mm |
| Stroke | 100 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 SAI200X100STC 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 SAI200X100STC 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 SI200X100STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×100 | 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 SI200X100STC Is Used
Heavy Press Clamping
Generates 15708 N of push force at 0.5 MPa to secure large steel plates or heavy castings during machining and pressing operations.
Automated Assembly Platen
Drives large industrial platens up and down on automated lines, utilizing the TC trunnion mount to handle minor misalignments during actuation.
Replacing the Airtac SI200 Standard Cylinder SI200X100STC with the SAI200X100STC
To replace the SI200X100STC, order the SAI200X100STC. Verify that your existing fixture accommodates the ISO 15552 TC trunnion mounting interface, 200mm bore, 100mm stroke, and G3/4 port. If you need to size up or down, neighboring bores are 160mm and 125mm; at 0.5 MPa, this 200mm bore generates 15708 N push and 15080 N pull. Remember that a standard double-acting cylinder drifts when air is lost or valves are centered, as the adjustable 50mm air cushions only decelerate the load near stroke ends. For load-holding security, consider an external pilot-operated check valve, a rod lock, or explore the SAI family's SAIL air-released lock and BSAI clamp-lock variants. The SAI family also includes the SAIF variant with a built-in 4M valve for bores 32-100.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X100STC
- ✓ 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 SI200X100STC FAQ
Yes, the AirTAC SI200X100STC is discontinued. The direct replacement is the SAI200X100STC. It features the same ISO 15552 mounting interface, 200mm bore, 100mm stroke, output force, G3/4 port, and TC trunnion mounting, fitting directly into existing fixtures.
This double-acting cylinder operates at 30-500 mm/s. At 0.5 MPa it provides 15708 N push and 15080 N pull force. At 0.7 MPa push is 21991 N, and at 0.9 MPa it is 28274 N. The theoretical maximum force is 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X100STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X100STC replacement — usually within 7-8 hours.