This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X340, 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 SI200X340
The AirTAC Airtac SI200 Standard Cylinder SI200X340 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 340mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X340, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke340 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X340
- 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 SI200X340
The AirTAC SI200X340 is a discontinued double-acting ISO 15552 profile cylinder, delivering a robust 15708 N push force at 0.5 MPa through its 200 mm bore and 340 mm stroke. It features a 40 mm carbon steel rod, M36x2 thread, and a G3/4 port. Because this legacy unit is end-of-life, you should order the SAI200X340 direct replacement, which matches the exact ISO 15552 mounting interface, output force, and dimensions.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and longevity. Note this non-magnet SKU cannot accept a sensor. If you need load holding on air loss, the cushion only decelerates; you must use an external rod lock or the SAIL/BSAI lock variants.
Airtac SI200 Standard Cylinder SI200X340 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X340 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X340 |
| Bore size | Ø200 mm |
| Stroke | 340 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 SAI200X340 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 SAI200X340 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 SI200X340
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×340 | 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 SI200X340 Is Used
Heavy Pallet Lifting
Drives large-format pallet elevators and heavy goods lifts where the 801 kg vertical lift capacity and 340 mm stroke handle substantial material handling tasks.
Press Ejection Systems
Provides high-force ejection of formed parts from industrial presses, utilizing the 15708 N push force at 0.5 MPa to reliably clear heavy stampings.
Stamping Clamp Presses
Applies 28274 N of force at 0.9 MPa for securing and stamping thick metal components, relying on the rigid ISO 15552 profile barrel for stability.
Replacing the Airtac SI200 Standard Cylinder SI200X340 with the SAI200X340
To replace the SI200X340, order the SAI200X340 and verify your ISO 15552 mounting interface, 340 mm stroke, and G3/4 port. Confirm your mounting accessory (LB, FA, CA, TC) and thread choice (PT/G/NPT). Since this SKU lacks the -S magnet, it cannot take a CS1-B/DS1-B sensor; if position detection is required, switch to a magnet-equipped SAI. Sizing both ways: this 200 mm bore yields 15708 N push at 0.5 MPa (28274 N at 0.9 MPa); if oversizing, a 160 mm bore offers 10053 N. For the 340 mm stroke, use external guides to prevent rod bending and side-load damage. For suspended loads that must not drift on air loss, add a pilot check valve or specify the SAIL or BSAI lock variant, as cushions only decelerate.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X340
- ✓ 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 SI200X340 FAQ
Yes, the SI200X340 is discontinued. The direct replacement is the SAI200X340. It is dimensionally interchangeable per ISO 15552, matching the 200 mm bore, 340 mm stroke, G3/4 port, and mounting fixtures, but features an upgraded piston seal.
The G3/4 port feeds a 40 mm rod. Force outputs are: 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. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X340
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X340 replacement — usually within 7-8 hours.