This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX135, 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 SI200AX135
The AirTAC Airtac SI200 Standard Cylinder SI200AX135 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 135mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX135, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke135 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX135
- 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 SI200AX135
The AirTAC SI200AX135 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 135mm stroke. It delivers 15708 N push and 15080 N pull at 0.5 MPa, operating at speeds of 30-500 mm/s with a G3/4 port. The direct replacement is the SAI200AX135, sharing the same interface, force, and mounting.
The SAI upgrade features an improved piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This SKU uses a SUS420J2 stainless rod (-A) and lacks a magnet, meaning it cannot take legacy CS1-B/DS1-B sensors.
Airtac SI200 Standard Cylinder SI200AX135 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX135 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX135 |
| Bore size | Ø200 mm |
| Stroke | 135 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 SAI200AX135 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 SAI200AX135 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 SI200AX135
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×135 | 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 SI200AX135 Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring 15708 N of push force at 0.5 MPa, utilizing the 135mm stroke for high-impact metal forming.
Industrial Clamp Rig
Secures massive structural steel components during fabrication, relying on the 15080 N pull force and SUS420J2 stainless rod to resist workshop moisture.
Replacing the Airtac SI200 Standard Cylinder SI200AX135 with the SAI200AX135
To replace the SI200AX135, order the SAI200AX135, confirming the ISO 15552 mounting interface, 200mm bore, 135mm stroke, and G3/4 port. Retain your original mounting accessory and note the M36x2 rod thread. Because this SKU lacks a magnet (-S), it cannot accept position sensors; if sensing is needed, switch to a magnet-equipped SAI model. For sizing, stepping down to a 160mm bore yields 10053 N push at 0.5 MPa, while the 200mm bore provides 21991 N at 0.7 MPa. Remember that a plain cylinder does not hold load without live air; the 50mm adjustable cushion only decelerates. For load holding on air loss, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX135
- ✓ 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 SI200AX135 FAQ
Yes, the AirTAC SI200AX135 is discontinued. The direct replacement is the SAI200AX135. It is dimensionally interchangeable per ISO 15552, matching the 200mm bore, 135mm stroke, G3/4 port, and mounting interface for a seamless fixture swap.
This double-acting cylinder features a G3/4 air port and an M36x2 rod thread. 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 maximum of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX135
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX135 replacement — usually within 7-8 hours.