This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX270, 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 SI200AX270
The AirTAC SI200 Standard Cylinder SI200AX270 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 270mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX270, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke270 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX270
- 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 SI200AX270
The AirTAC SI200AX270 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 270 mm stroke. It delivers a robust 15708 N push force at 0.5 MPa and features a G3/4 air port. The direct replacement is the SAI200AX270, which matches the exact bore, stroke, force, port, and ISO 15552 mounting interface for seamless fixture integration.
This SKU uses a SUS420J2 stainless steel piston rod (-A) and lacks a magnet, meaning it cannot accept a position switch. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life.
Airtac SI200 Standard Cylinder SI200AX270 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX270 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX270 |
| Bore size | Ø200 mm |
| Stroke | 270 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 SAI200AX270 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 SAI200AX270 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 SI200AX270
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×270 | 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 SI200AX270 Is Used
Heavy Stamp Pressing
Generates 21991 N of thrust at 0.7 MPa, ideal for actuating large metal stamping and forming presses requiring immense peak force.
Mold Clamping Stations
Provides the 3204 kgf maximum theoretical holding force needed to secure heavy injection molds and large industrial fixtures.
Replacing the Airtac SI200 Standard Cylinder SI200AX270 with the SAI200AX270
To replace the discontinued SI200AX270, order the SAI200AX270. Verify your existing ISO 15552 mounting accessories (LB, FA, CA, TC, etc.), the 270 mm stroke, and the G3/4 port. Because this specific SKU lacks the -S magnet, it cannot support legacy CS1-B/DS1-B sensors; if sensing is required, switch to a magnet-equipped SAI model. When sizing, the 200 mm bore yields 15708 N push at 0.5 MPa; if you need less force, step down to a 160 mm bore (10053 N push). For load holding on air loss, note that a standard cylinder drifts—the cushion only decelerates. Use an external pilot check valve, or explore the SAIL or BSAI lock variants. Since the 270 mm stroke exceeds 300 mm, ensure adequate guiding to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX270
- ✓ 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 SI200AX270 FAQ
Yes, the AirTAC SI200AX270 is discontinued. The direct replacement is the SAI200AX270. It is dimensionally interchangeable per ISO 15552, retaining the same 200 mm bore, 270 mm stroke, G3/4 port, and mounting interface. The SAI simply upgrades the piston seal for longer life.
This double-acting cylinder uses a G3/4 air port. 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; and a maximum theoretical force of 3204 kgf at 1.0 MPa. It operates at speeds of 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX270
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX270 replacement — usually within 7-8 hours.