This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX220, 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 SI200AX220
The AirTAC Airtac SI200 Standard Cylinder SI200AX220 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 SAI200AX220, 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 → SAI200AX220
- 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 SI200AX220
The AirTAC SI200AX220 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 220 mm stroke. Built with an extruded aluminum barrel, it delivers 15708 N of push force at 0.5 MPa through a G3/4 port. AirTAC replaced this legacy unit with the SAI200AX220, a direct upgrade retaining the exact ISO 15552 mounting interface, M36x2 rod thread, and 50 mm adjustable air cushions.
The SAI replacement features an upgraded piston seal utilizing two Y-shaped one-way elements for low start-up pressure and extended life. This specific SKU uses a SUS420J2 stainless steel rod (the -A option) for corrosion resistance. As a non-magnet model, it cannot accept position sensors.
Airtac SI200 Standard Cylinder SI200AX220 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX220 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX220 |
| 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 SAI200AX220 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 SAI200AX220 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 SI200AX220
| 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 SI200AX220 Is Used
Heavy Press Clamping
Applies up to 21991 N of clamping thrust at 0.7 MPa to secure large metal castings or heavy machinery frames during machining and assembly operations.
Stamping Press Feed
Indexes thick sheet metal or heavy billets into large-scale hydraulic presses, utilizing the 50 mm adjustable air cushions to decelerate the 40 mm rod smoothly.
Replacing the Airtac SI200 Standard Cylinder SI200AX220 with the SAI200AX220
To replace the discontinued SI200AX220, order the SAI200AX220. Confirm the ISO 15552 mounting fixture matches your existing foot, flange, or trunnion accessories, and verify the G3/4 port and M36x2 rod thread. Because this SKU lacks the -S magnet suffix, it cannot support legacy CS1-B/DS1-B sensors; if position detection is required, switch to a magnet-equipped SAI variant. When sizing, note the 200 mm bore yields 15708 N push at 0.5 MPa (21991 N at 0.7 MPa). If downward sizing is possible, a 160 mm bore offers 10053 N; if more force is needed, pressure can be raised toward the 1.0 MPa maximum (3204 kgf theoretical max). Remember that a standard cylinder drifts without live air—the cushion only decelerates end-of-stroke. For load holding on air loss, specify an external pilot check valve or explore the SAIL or BSAI lock variants. Since the 220 mm stroke exceeds 300 mm? No, but always ensure guide alignment to prevent rod bending under heavy 200 mm loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX220
- ✓ 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 SI200AX220 FAQ
Yes, the AirTAC SI200AX220 is discontinued. The direct replacement is the SAI200AX220. It shares the exact same ISO 15552 mounting interface, 200 mm bore, 220 mm stroke, output force, G3/4 port, and accessories, fitting directly into your existing fixtures.
It features a G3/4 air port and a 40 mm piston rod. The thrust ratings are: 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; with a theoretical maximum force of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX220
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX220 replacement — usually within 7-8 hours.