This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX220S, 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 SI200AX220S
The AirTAC SI200 Standard Cylinder SI200AX220S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 220mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX220S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke220 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX220S
- 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 SI200AX220S
The AirTAC SI200AX220S is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 220 mm stroke. Delivering 15708 N push force at 0.5 MPa, it features an SUS420J2 stainless piston rod and a built-in magnet for CS1-B/DS1-B switches. The direct replacement is the SAI200AX220S, retaining the same G3/4 port and ISO 15552 mounting interface.
This SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF and BSAI lock variants the SI line lacked.
Airtac SI200 Standard Cylinder SI200AX220S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX220S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX220S |
| Bore size | Ø200 mm |
| Stroke | 220 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 SAI200AX220S 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 SAI200AX220S 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 SI200AX220S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×220 | 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 SI200AX220S Is Used
Heavy Stamping
Drives large presses and stamping dies requiring 15708 N push force at 0.5 MPa with stable 220 mm travel.
Mold Clamping
Secures heavy injection molds using the SUS420J2 stainless rod, resisting corrosion in humid production environments.
Replacing the Airtac SI200 Standard Cylinder SI200AX220S with the SAI200AX220S
To replace the SI200AX220S, order the SAI200AX220S ensuring the ISO 15552 mounting interface, 200 mm bore, 220 mm stroke, G3/4 port and magnet (-S) match. The SAI uses current AirTAC switches instead of the legacy CS1-B/DS1-B. If downsizing, neighbouring bores offer less force; if upsizing, note the 3204 kgf max at 1.0 MPa. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding. For stroke lengths over 300 mm, guide the load to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX220S
- ✓ 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 SI200AX220S FAQ
Yes, the SI200AX220S is discontinued. The direct replacement is the SAI200AX220S, which shares the same ISO 15552 mounting interface, 200 mm bore, 220 mm stroke, force, G3/4 port and accessories.
It has a G3/4 port. Force output is 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and a theoretical max of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX220S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX220S replacement — usually within 7-8 hours.