This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X75H, 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 SI200X75H
The AirTAC SI200 Standard Cylinder SI200X75H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 75mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X75H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke75 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X75H
- 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 SI200X75H
The AirTAC SI200X75H is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 75 mm stroke. Delivering 15708 N push force at 0.5 MPa, it features a G3/4 port and a high-temp Viton H seal (0-150 C). The direct replacement is the SAI200X75H, sharing the exact ISO 15552 mounting interface, force, and porting.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this SKU lacks a magnet (-S), so it cannot accept CS1-B/DS1-B sensors. The SAI family also adds SAIL and BSAI lock variants absent in the SI line.
Airtac SI200 Standard Cylinder SI200X75H Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X75H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X75H |
| Bore size | Ø200 mm |
| Stroke | 75 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 SAI200X75H 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 SAI200X75H 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 SI200X75H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×75 | 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 SI200X75H Is Used
Heavy Stamping Press
Drives large heavy-duty stamping operations requiring 21991 N push force at 0.7 MPa with robust 50 mm cushions.
Aluminum Extrusion
Handles high-force actuation tasks in extrusion lines, benefiting from the Viton H high-temperature seal option.
Pallet Forming
Executes 75 mm clamping movements in automated pallet assembly fixtures using the G3/4 air supply.
Replacing the Airtac SI200 Standard Cylinder SI200X75H with the SAI200X75H
To replace the SI200X75H, order the SAI200X75H. Verify the ISO 15552 mounting accessory (LB, FA, TC, etc.), the G3/4 port, and the M36x2 rod thread. Because this SKU has no -S magnet, it cannot support position sensing; if switches are needed, specify a magnet on the SAI order. Sizing both ways: the 200 mm bore yields 15708 N push at 0.5 MPa (3204 kgf max at 1.0 MPa), while a neighboring 160 mm bore offers 10053 N. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X75H
- ✓ 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 SI200X75H FAQ
Yes, the SI200X75H is discontinued. The direct replacement is the SAI200X75H. It is dimensionally interchangeable per ISO 15552, retaining the same 200 mm bore, 75 mm stroke, G3/4 port, and mounting interface.
It features a G3/4 port and provides 15708 N push / 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, 28274 N at 0.9 MPa, and a 3204 kgf maximum at 1.0 MPa. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X75H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X75H replacement — usually within 7-8 hours.