This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X115, 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 SI200X115
The AirTAC Airtac SI200 Standard Cylinder SI200X115 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 115mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X115, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke115 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X115
- 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 SI200X115
The AirTAC SI200X115 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 115mm stroke, delivering 15708 N push force at 0.5 MPa. It features a G3/4 air port, M36x2 rod thread, and 50mm adjustable air cushions. As this legacy unit is end-of-life, the direct replacement is the SAI200X115, which maintains the identical ISO 15552 mounting interface, output force, and port size.
The SAI upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Because this specific SI SKU lacks the -S magnet suffix, it cannot accept a magnetic switch.
Airtac SI200 Standard Cylinder SI200X115 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X115 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X115 |
| Bore size | Ø200 mm |
| Stroke | 115 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 SAI200X115 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 SAI200X115 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 SI200X115
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×115 | 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 SI200X115 Is Used
Heavy Stamping Press
Generates up to 28274 N at 0.9 MPa for forming thick metal plates in automated fabrication lines.
Pallet Lifting Station
Provides a safe vertical lift of approximately 801 kg, ideal for raising heavy loaded pallets in logistics hubs.
Large Injection Mold
Actuates oversized molding tools with a 50mm adjustable air cushion to smoothly decelerate massive moving platens.
Replacing the Airtac SI200 Standard Cylinder SI200X115 with the SAI200X115
To replace the SI200X115, order the SAI200X115. Verify your existing fixture's ISO 15552 mounting interface (LB, FA, TC, etc.), the 115mm stroke, and the G3/4 port. Since this SI unit has no -S suffix, it cannot support legacy CS1-B/DS1-B sensors; if position detection is required, order the SAI equivalent with an S suffix. For sizing, the 200mm bore yields 15708 N push at 0.5 MPa; if you need less force, a 160mm bore provides 10053 N, while higher pressures push output to 28274 N at 0.9 MPa. Remember that a standard cylinder drifts on air loss—the cushion only decelerates—so for load holding, specify the SAIL or BSAI lock variant, or use an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X115
- ✓ 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 SI200X115 FAQ
Yes, the SI200X115 is discontinued. The direct replacement is the SAI200X115. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 200mm bore, 115mm stroke, force, G3/4 port, and mounting accessories.
The 200mm bore delivers 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, 28274 N push at 0.9 MPa, and a theoretical max of 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X115
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X115 replacement — usually within 7-8 hours.