This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX35, 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 SI200AX35
The AirTAC Airtac SI200 Standard Cylinder SI200AX35 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 35mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX35, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke35 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX35
- 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 SI200AX35
The AirTAC SI200AX35 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 35mm stroke. It delivers 15708 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI200AX35, retaining identical mounting and force. This SKU uses an SUS420J2 stainless rod (-A) but lacks a magnet, so it cannot accept position switches.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure. Note the cushion only decelerates; it does not hold load.
Airtac SI200 Standard Cylinder SI200AX35 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX35 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX35 |
| Bore size | Ø200 mm |
| Stroke | 35 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 SAI200AX35 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 SAI200AX35 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 SI200AX35
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×35 | 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 SI200AX35 Is Used
Heavy Pressing
Generates 21991 N at 0.7 MPa for seating large bearings and heavy structural components in fabrication lines.
Pallet Handling
Provides the robust push force needed to index loaded pallets or divert heavy goods across conveyor transfers.
Mold Clamping
Secures large injection molds with high clamping force, utilizing the corrosion-resistant SUS420J2 rod.
Replacing the Airtac SI200 Standard Cylinder SI200AX35 with the SAI200AX35
To replace the SI200AX35, order the SAI200AX35. Verify the ISO 15552 mounting interface, 200mm bore, 35mm 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 load holding on air loss, the cushion will not lock the piston; use an external pilot check valve or the SAIL/BSAI lock variants. For sizing down, a 160mm bore yields 10053 N push at 0.5 MPa. For higher force, this 200mm bore maxes at 3204 kgf at 1.0 MPa.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX35
- ✓ 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 SI200AX35 FAQ
Yes, the SI200AX35 is discontinued. The direct replacement is the SAI200AX35, which shares the same ISO 15552 mounting interface, 200mm bore, 35mm stroke, force, and G3/4 port.
This double-acting cylinder uses a G3/4 port. It 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX35
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX35 replacement — usually within 7-8 hours.