This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X50SCB, 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 SI160X50SCB
The AirTAC SI160 Standard Cylinder SI160X50SCB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 50mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X50SCB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke50 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X50SCB
- 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 SI160X50SCB
The AirTAC SI160X50SCB is a discontinued double-acting ISO 15552 profile cylinder featuring a 160mm bore, 50mm stroke, and a CB clevis mount. Delivering 10053 N push and 9425 N pull at 0.5 MPa, it uses a G3/4 air port and M36x2 rod thread. The direct replacement is the SAI160X50SCB, which shares the exact ISO 15552 mounting interface, output force, and porting to fit existing fixtures.
The SAI upgrade introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The -S code denotes a piston magnet for legacy CS1-B/DS1-B sensors, while the SAI family adds lock variants like SAIL and BSAI that the SI lacked.
Airtac SI160 Standard Cylinder SI160X50SCB Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X50SCB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X50SCB |
| Bore size | Ø160 mm |
| Stroke | 50 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 SAI160X50SCB 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 SAI160X50SCB 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 SI160X50SCB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×50 | 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 SI160X50SCB Is Used
Heavy Press Clamping
Generates 14074 N at 0.7 MPa to secure large steel fabrications during heavy machining or welding operations.
Stamping Press Ejection
Uses the 50mm stroke and 9425 N pull force to rapidly eject heavy formed metal parts from press dies.
Replacing the Airtac SI160 Standard Cylinder SI160X50SCB with the SAI160X50SCB
To replace the SI160X50SCB, order the SAI160X50SCB with the exact 160mm bore, 50mm stroke, CB clevis mount, G3/4 port, and -S magnet. Confirm your thread option (PT/G/NPT) and rod material (carbon steel, SUS420J2 A, or SUS304 B). Sizing both ways: a 125mm bore yields 6136 N push at 0.5 MPa, while a 200mm bore yields 15708 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates near stroke end—so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. Operating speed is 30-500 mm/s.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X50SCB
- ✓ 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 SI160X50SCB FAQ
Yes, the SI160X50SCB is discontinued. The direct replacement is the SAI160X50SCB. It is dimensionally interchangeable per ISO 15552, retaining the same 160mm bore, 50mm stroke, CB mount, G3/4 port, and output force.
The G3/4 port bore delivers a push of 10053 N and pull of 9425 N at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N push at 0.9 MPa, and a theoretical max of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X50SCB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X50SCB replacement — usually within 7-8 hours.