This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX400SH, 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 SI200BX400SH
The AirTAC SI200 Standard Cylinder SI200BX400SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 400mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX400SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke400 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX400SH
- 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 SI200BX400SH
The AirTAC SI200BX400SH is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 400mm stroke. Delivering 15708 N push force at 0.5 MPa through a G3/4 port, it features a SUS304 stainless piston rod (-B) and Viton H seals (-H) for 0-150 C high-temperature environments. The direct replacement is the SAI200BX400SH, sharing identical ISO 15552 mounting, force, and porting.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and longevity. Note that standard cylinders drift without live air; use an external rod lock or the SAIL/BSAI lock variants for load holding. This -S model accepts CS1-B/DS1-B sensors.
Airtac SI200 Standard Cylinder SI200BX400SH Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX400SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX400SH |
| Bore size | Ø200 mm |
| Stroke | 400 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 SAI200BX400SH 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 SAI200BX400SH 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 SI200BX400SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×400 | 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 SI200BX400SH Is Used
Heavy Stamping
Drives large presses and stamping fixtures requiring 21991 N push force at 0.7 MPa with robust 0-150 C Viton H seals.
High-Temp Clamping
Secures heavy fabricated components in elevated temperature zones using the SUS304 stainless rod and high-temp seals.
Large Mold Handling
Actuates 801 kg vertical lifts in mold transfer systems, necessitating external guide rails to manage the 400mm stroke side loads.
Replacing the Airtac SI200 Standard Cylinder SI200BX400SH with the SAI200BX400SH
To replace the SI200BX400SH, order the SAI200BX400SH. Verify the ISO 15552 interface, 400mm stroke, G3/4 port, and mounting accessory. The -B rod is SUS304, -H is Viton (0-150 C), and -S provides the magnet for CS1-B/DS1-B switches. Sizing down, a 160mm bore yields 10053 N [email protected]; sizing up is not possible as 200mm is the maximum. The 400mm stroke requires external guides to prevent rod bending under side loads. For load holding on air loss, select the SAIL or BSAI lock variant, or add a pilot check valve, as cushions only decelerate.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX400SH
- ✓ 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 SI200BX400SH FAQ
Yes, the AirTAC SI200BX400SH is discontinued. The direct replacement is the SAI200BX400SH. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 400mm stroke, 15708 N force, G3/4 port, and mounting interface.
It features a G3/4 air port and M36x2 rod thread. Force output is 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, with a theoretical max of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX400SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX400SH replacement — usually within 7-8 hours.