This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX105S, 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 SI200AX105S
The AirTAC SI200 Standard Cylinder SI200AX105S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 105mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX105S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke105 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX105S
- 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 SI200AX105S
The AirTAC SI200AX105S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 105mm stroke. It delivers 15708 N push force at 0.5 MPa via a G3/4 port. AirTAC replaced this legacy unit with the SAI200AX105S, a direct replacement sharing the exact ISO 15552 mounting interface, bore, stroke, output force, and accessories. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This specific SI200AX105S variant includes the -A SUS420J2 stainless steel piston rod for corrosion resistance and the -S magnet for legacy CS1-B/DS1-B sensors.
The SAI family also introduces lock and valve variants the SI line lacked, such as the SAIL air-released lock and BSAI clamp-lock. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external rod lock or pilot check valve.
Airtac SI200 Standard Cylinder SI200AX105S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX105S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX105S |
| Bore size | Ø200 mm |
| Stroke | 105 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 SAI200AX105S 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 SAI200AX105S 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 SI200AX105S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×105 | 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 SI200AX105S Is Used
Heavy Press Clamping
Generates 21991 N at 0.7 MPa to secure large steel fabrications during heavy-duty machining and welding operations.
Pallet Lift Actuation
Provides the raw push force needed for vertical lift actuation in automated high-capacity warehouse retrieval systems.
Injection Mould Eject
Drives the massive ejection strokes required to release dense industrial plastic parts from heavy moulding tools.
Replacing the Airtac SI200 Standard Cylinder SI200AX105S with the SAI200AX105S
To replace the discontinued SI200AX105S, order the SAI200AX105S. Confirm the ISO 15552 mounting interface, 200mm bore, 105mm stroke, G3/4 port, and your mounting accessory. This unit has the -A SUS420J2 rod and -S magnet. When sizing, 0.5 MPa yields 15708 N push and 15080 N pull. If undersizing, a 160mm bore provides 10053 N push at 0.5 MPa or 14074 N at 0.7 MPa. For higher force, 1.0 MPa gives 3204 kgf max. Because stroke is 105mm, watch side-load and rod-bending; use guide rails. A plain cylinder does not hold load without live air; the cushion only decelerates. For secure holding, specify the SAIL or BSAI lock variant, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX105S
- ✓ 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 SI200AX105S FAQ
Yes, the AirTAC SI200AX105S is discontinued. The direct replacement is the SAI200AX105S. It shares the same ISO 15552 mounting interface, 200mm bore, 105mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly.
This double-acting cylinder features a G3/4 port, M36x2 rod thread, and 50mm cushions. It delivers 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, 28274 N at 0.9 MPa, and a maximum theoretical force of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX105S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX105S replacement — usually within 7-8 hours.