This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X65S, 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 SI200X65S
The AirTAC Airtac SI200 Standard Cylinder SI200X65S 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 SAI200X65S, 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 → SAI200X65S
- 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 SI200X65S
The AirTAC SI200X65S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 65mm stroke, delivering 15708N push force at 0.5MPa via a G3/4 port. The direct replacement is the SAI200X65S, which matches the original mounting interface, M36x2 thread, and 50mm cushions. This current-production SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life.
The original SI-SKU includes a piston magnet for legacy CS1-B/DS1-B sensors, whereas the SAI replacement family uses current AirTAC switches. Note that a standard cylinder drifts without live air; for load holding, consider the SAIL or BSAI lock variants the SI line lacked.
Airtac SI200 Standard Cylinder SI200X65S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X65S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X65S |
| 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 SAI200X65S 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 SAI200X65S 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 SI200X65S
| 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 SI200X65S Is Used
Heavy Press Clamping
Generates up to 28274N of push force at 0.9MPa for securing large steel plates during heavy-duty machining and welding operations.
Massive Platen Lowering
Provides controlled descent and adjustable 50mm cushioning for heavy industrial platens, safely decelerating loads near the stroke end.
Injection Mould Ejection
Delivers robust 15080N pull force at 0.5MPa to extract large moulded components from industrial presses without hesitation.
Replacing the Airtac SI200 Standard Cylinder SI200X65S with the SAI200X65S
To replace the SI200X65S, order the SAI200X65S, confirming the ISO 15552 mounting interface, 200mm bore, 65mm stroke, G3/4 port, and the -S magnet option. When sizing both ways, a neighbouring 160mm bore yields 10053N push at 0.5MPa, while a 200mm bore hits 21991N at 0.7MPa. Remember that a plain cylinder does not hold load on air loss—the cushions only decelerate. For secure holding, specify the SAIL air-released lock or BSAI clamp-lock variant, or use an external pilot check valve. The 65mm stroke is short, so side-load rod-bending stress is minimal, but always verify guide alignment.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X65S
- ✓ 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 SI200X65S FAQ
Yes, the SI200X65S is discontinued. The direct replacement is the SAI200X65S. It is a true ISO 15552 profile cylinder that matches the original 200mm bore, 65mm stroke, output force, G3/4 port, and mounting dimensions, dropping directly into existing fixtures.
The 200mm bore delivers 15708N push and 15080N pull at 0.5MPa, 21991N push at 0.7MPa, 28274N push at 0.9MPa, and a theoretical max of 3204kgf at 1.0MPa. Operating speed is 30-500mm/s. It uses a G3/4 port and a 40mm rod with an M36x2 thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X65S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X65S replacement — usually within 7-8 hours.