This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX65S, 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 SI200AX65S
The AirTAC SI200 Standard Cylinder SI200AX65S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 65mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX65S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke65 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX65S
- 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 SI200AX65S
The AirTAC SI200AX65S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 65mm stroke. Built with an extruded aluminum barrel, it delivers 15708 N of push force at 0.5 MPa and features a SUS420J2 stainless steel piston rod. The direct replacement is the SAI200AX65S, which shares the exact ISO 15552 mounting interface, G3/4 port, and 3204 kgf maximum force.
The SAI upgrade introduces an upgraded piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. The original -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family uses current AirTAC switches.
Airtac SI200 Standard Cylinder SI200AX65S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX65S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX65S |
| Bore size | Ø200 mm |
| Stroke | 65 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 SAI200AX65S 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 SAI200AX65S 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 SI200AX65S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×65 | 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 SI200AX65S Is Used
Heavy Pressing
Generates 21991 N at 0.7 MPa to seat large bearings and form heavy gauge metal components in automated press lines.
Pallet Handling
Drives robust lifting stops and heavy-duty diverters in high-capacity distribution centers handling full pallet loads.
Mold Actuation
Provides the 15708 N push force at 0.5 MPa required to open and close large industrial injection molds safely.
Replacing the Airtac SI200 Standard Cylinder SI200AX65S with the SAI200AX65S
To replace the SI200AX65S, order the SAI200AX65S and confirm the ISO 15552 mounting interface, 200mm bore, 65mm stroke, and G3/4 port. Retain your original mounting accessory and the -S magnet requirement. Because this is a high-thrust application, sizing both ways is essential: a neighboring 160mm bore yields 10053 N at 0.5 MPa, whereas the 200mm bore provides 15708 N. Note that a plain ISO 15552 cylinder does not hold load on air loss; the 50mm adjustable air cushions only decelerate the piston near stroke end. For load holding, specify an external pilot-operated check valve, or select the SAIL or BSAI lock variants. The SAI family also offers the SAIF self-valve option, though only for bores 32-100.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX65S
- ✓ 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 SI200AX65S FAQ
Yes, the SI200AX65S is discontinued. The direct replacement is the SAI200AX65S. It is dimensionally interchangeable per the ISO 15552 mounting interface, maintaining the same 200mm bore, 65mm stroke, output force, and G3/4 port.
This double-acting cylinder operates at 0.15-1.0 MPa with a proof pressure of 1.5 MPa. Force output is 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and a theoretical maximum of 3204 kgf at 1.0 MPa. It features a G3/4 port, a 40mm SUS420J2 stainless rod, and operates at 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX65S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX65S replacement — usually within 7-8 hours.