This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX15, 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 SI200AX15
The AirTAC Airtac SI200 Standard Cylinder SI200AX15 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 15mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX15, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke15 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX15
- 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 SI200AX15
The AirTAC SI200AX15 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 15 mm stroke. It delivers 15708 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI200AX15, matching the exact bore, stroke, force, port and ISO 15552 mounting interface.
This SKU features a SUS420J2 stainless steel rod (option A) but lacks a magnet, so it cannot accept position sensors. The SAI upgrade uses two Y-shaped one-way piston seals for low start-up pressure.
Airtac SI200 Standard Cylinder SI200AX15 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX15 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX15 |
| Bore size | Ø200 mm |
| Stroke | 15 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 SAI200AX15 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 SAI200AX15 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 SI200AX15
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×15 | 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 SI200AX15 Is Used
Heavy Pressing
Applies the 15708 N @0.5 MPa thrust for short-stroke pressing, clinching or staking operations in heavy fabrication.
Mold Clamping
Secures large injection molds or industrial fixtures using the SUS420J2 stainless rod in humid environments.
Short Ejection
Ejects heavy parts or platens over a 15 mm distance where high initial breakout force is required.
Replacing the Airtac SI200 Standard Cylinder SI200AX15 with the SAI200AX15
To replace the SI200AX15, order the SAI200AX15. Verify the ISO 15552 mounting interface, 200 mm bore, 15 mm stroke, G3/4 port, and SUS420J2 rod. Because this SKU lacks a magnet (-S), it cannot support CS1-B/DS1-B sensors. If you need to downsize, a 160 mm bore yields 10053 N push at 0.5 MPa; if you need more force, 1.0 MPa provides 3204 kgf. For load holding on air loss, use an external rod lock or pilot check valve, as cushions only decelerate. The SAIL or BSAI lock variants also provide this.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX15
- ✓ 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 SI200AX15 FAQ
Yes, the SI200AX15 is discontinued. The direct replacement is the SAI200AX15. It shares the same ISO 15552 mounting interface, 200 mm bore, 15 mm stroke, force, G3/4 port and accessories, fitting directly into existing fixtures.
It features a G3/4 port and delivers a push of 15708 N and pull of 15080 N at 0.5 MPa. At 0.7 MPa push is 21991 N, and the theoretical maximum force is 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX15
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX15 replacement — usually within 7-8 hours.