This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X50H, 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 SI160X50H
The AirTAC SI160 Standard Cylinder SI160X50H 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 SAI160X50H, 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 → SAI160X50H
- 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 SI160X50H
The AirTAC SI160X50H is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 50 mm stroke. It delivers 10053 N push and 9425 N pull at 0.5 MPa, utilizing a G3/4 port and M36x2 rod thread. The direct replacement is the SAI160X50H, which maintains the identical ISO 15552 mounting interface, force, and port size. This specific SKU lacks a magnet and therefore cannot accept a sensor. The -H designation indicates a Viton H seal, extending the operating temperature from -20 to +70 C up to 0-150 C.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. The SAI family also adds SAIL, SAIF, and BSAI variants that the legacy SI line lacked.
Airtac SI160 Standard Cylinder SI160X50H Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X50H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X50H |
| 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 SAI160X50H 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 SAI160X50H 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 SI160X50H
| 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 SI160X50H Is Used
Heavy Stamp Pressing
Generates 14074 N at 0.7 MPa to drive heavy stamping and forming dies in automotive lines.
High-Temperature Actuation
The Viton H seal permits 0-150 C operation, ideal for actuating gates near ovens and dryers.
Replacing the Airtac SI160 Standard Cylinder SI160X50H with the SAI160X50H
To replace the discontinued SI160X50H, order the SAI160X50H. Confirm the ISO 15552 mounting interface, 160 mm bore, 50 mm stroke, G3/4 port, and your specific mounting accessory (LB, FA, CA, TC, etc.). Because this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors; if sensing is required, switch to an SAI model with a magnet. A plain cylinder drifts without live air—the cushion only decelerates—so for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. The Viton H seal accommodates 0-150 C environments.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X50H
- ✓ 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 SI160X50H FAQ
Yes, the SI160X50H is discontinued. The direct replacement is the SAI160X50H. It features the same ISO 15552 mounting interface, 160 mm bore, 50 mm stroke, 10053 N force, and G3/4 port, fitting existing fixtures perfectly.
This double-acting cylinder uses a G3/4 port. It delivers a push force of 10053 N and pull of 9425 N at 0.5 MPa, 14074 N at 0.7 MPa, 18095 N at 0.9 MPa, and a theoretical max of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X50H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X50H replacement — usually within 7-8 hours.