This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X330S, 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 SI160 Standard Cylinder SI160X330S
The AirTAC SI160 Standard Cylinder SI160X330S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 330mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X330S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke330 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X330S
- 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 SI160 Standard Cylinder SI160X330S
The AirTAC SI160X330S is a discontinued double-acting ISO 15552 profile cylinder. Delivering 10053 N push force at 0.5 MPa through a 160 mm bore, it is replaced by the SAI160X330S. This direct successor maintains the exact interface, G3/4 port, and stroke.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. The family adds SAIL and BSAI lock variants the SI lacked. This -S SKU uses CS1-B/DS1-B sensors.
Airtac SI160 Standard Cylinder SI160X330S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X330S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X330S |
| Bore size | Ø160 mm |
| Stroke | 330 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 SAI160X330S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAI160X330S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI160 Standard Cylinder SI160X330S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×330 | 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 SI160 Standard Cylinder SI160X330S Is Used
Heavy Pressing
Drives large stamping and forming presses requiring 14074 N push force at 0.7 MPa.
Clamp Systems
Secures large fabricated components in machining fixtures using its 9425 N pull force.
Replacing the Airtac SI160 Standard Cylinder SI160X330S with the SAI160X330S
To replace the SI160X330S, order the SAI160X330S. Verify the ISO 15552 mounting interface, 330 mm stroke, M36x2 thread, G3/4 port, and -S magnet. Sizing down, the 125 mm bore yields 6136 N at 0.5 MPa; sizing up, the 200 mm bore yields 15708 N. Note that a 330 mm stroke requires external guides to prevent rod-bending side loads. The cushion only decelerates; for load holding on air loss, use the SAIL or BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X330S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI160 Standard Cylinder SI160X330S FAQ
Yes, the SI160X330S is discontinued. The direct replacement is the SAI160X330S. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 330 mm stroke, force, G3/4 port, and mounting accessories.
The G3/4 port feeds a 40 mm rod. It delivers 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and a theoretical max of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X330S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X330S replacement — usually within 7-8 hours.