This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X450CB, 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 SI160X450CB
The AirTAC SI160 Standard Cylinder SI160X450CB 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 SAI160X450CB, 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 → SAI160X450CB
- 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 SI160X450CB
The AirTAC SI160X450CB is a discontinued double-acting ISO 15552 profile cylinder, delivering a push force of 10053 N at 0.5 MPa through its 160 mm bore and 450 mm stroke. It features a G3/4 port, an M36x2 rod thread, and adjustable 50 mm air cushions at both ends. The direct replacement is the SAI160X450CB, sharing the identical interface, force, and CB clevis mount.
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 hold position without live air—the cushion only decelerates—so consider the SAIL lock variant or external pilot check valve for load holding.
Airtac SI160 Standard Cylinder SI160X450CB Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X450CB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X450CB |
| 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 SAI160X450CB 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 SAI160X450CB 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 SI160X450CB
| 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 SI160X450CB Is Used
Heavy Press Systems
Drives large format hydraulic or pneumatic presses requiring 10053 N output at 0.5 MPa with robust 160 mm bore stability.
Large Mold Handling
Shifts heavy injection molds along a 450 mm stroke, relying on 50 mm cushions to decelerate the 160 mm piston smoothly.
Replacing the Airtac SI160 Standard Cylinder SI160X450CB with the SAI160X450CB
To replace the discontinued SI160X450CB, order the SAI160X450CB. Verify the ISO 15552 CB clevis mount, 450 mm stroke, G3/4 port, and M36x2 thread. Since this SKU lacks a magnet (-S), it cannot accept CS1-B/DS1-B sensors. If sensing is needed, specify an SAI with S. For sizing, the 125 mm bore offers 6136 N push @0.5 MPa, while the 200 mm bore provides 15708 N. At 450 mm stroke, use external guides to prevent rod bending and side-load wear. A plain cylinder drifts on air loss; for load holding, use the SAIL or BSAI lock variant, or an external rod lock. Viton H seals raise the temperature range to 0-150 C.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X450CB
- ✓ 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 SI160X450CB FAQ
Yes, the SI160X450CB is discontinued. The direct replacement is the SAI160X450CB. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 450 mm stroke, G3/4 port, and CB mounting interface.
The 160 mm bore 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. The G3/4 port and 50 mm cushion ensure stable performance.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X450CB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X450CB replacement — usually within 7-8 hours.