This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X450SCB, 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 SI160X450SCB
The AirTAC SI160 Standard Cylinder SI160X450SCB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 450mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X450SCB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke450 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X450SCB
- 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 SI160X450SCB
The AirTAC SI160X450SCB is a discontinued double-acting ISO 15552 profile cylinder with a 160mm bore and 450mm stroke. It delivers 10053N push force at 0.5MPa through a G3/4 port. AirTAC replaced this legacy unit with the SAI160X450SCB, a direct upgrade sharing the exact ISO 15552 mounting interface, M36x2 thread, and 50mm cushions.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SAI family also introduces SAIL and BSAI lock variants absent from the SI line, and Viton H seals expand the temperature range to 150C.
Airtac SI160 Standard Cylinder SI160X450SCB Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X450SCB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X450SCB |
| Bore size | Ø160 mm |
| Stroke | 450 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 SAI160X450SCB 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 SAI160X450SCB 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 SI160X450SCB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×450 | 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 SI160X450SCB Is Used
Heavy Press Systems
Drives large format presses requiring 10053N push force at 0.5MPa, utilizing the 50mm adjustable cushions to absorb heavy kinetic energy at stroke ends.
Large Mold Handling
Shifts heavy industrial molds and tooling over a 450mm travel range, relying on external guide rails to prevent rod bending during extended reach operations.
Replacing the Airtac SI160 Standard Cylinder SI160X450SCB with the SAI160X450SCB
To replace the SI160X450SCB, order the SAI160X450SCB. Verify your ISO 15552 CB clevis mount, 450mm stroke, G3/4 port, and the -S magnet for CS1-B/DS1-B sensors (the SAI uses current AirTAC switches). For sizing, a 125mm bore yields 6136N push at 0.5MPa, while a 200mm bore yields 15708N. Note that a plain cylinder drifts on air loss; cushions only decelerate. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. At 450mm stroke, use external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X450SCB
- ✓ 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 SI160X450SCB FAQ
Yes, the SI160X450SCB is discontinued. The direct replacement is the SAI160X450SCB. It shares the identical ISO 15552 mounting interface, 160mm bore, 450mm stroke, output force, and G3/4 port, fitting directly into existing CB clevis fixtures.
This double-acting cylinder features a G3/4 air port and provides 10053N push and 9425N pull at 0.5MPa. At 0.7MPa push is 14074N, and at 0.9MPa it is 18095N. The theoretical maximum force is 2050kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X450SCB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X450SCB replacement — usually within 7-8 hours.