This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX145S, 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 SI160AX145S
The AirTAC Airtac SI160 Standard Cylinder SI160AX145S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 145mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX145S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke145 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX145S
- 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 SI160AX145S
The AirTAC SI160AX145S is a discontinued double-acting ISO 15552 profile cylinder featuring a 160mm bore and 145mm stroke. Built with an extruded aluminum barrel, it delivers 10053 N push force at 0.5 MPa and includes a -A SUS420J2 stainless piston rod for corrosion resistance. The direct replacement is the SAI160AX145S, which shares the same G3/4 port, M36x2 thread, and 50mm cushions.
The SAI160AX145S upgrades the piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. The original -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family adds SAIL and BSAI lock variants the SI lacked.
Airtac SI160 Standard Cylinder SI160AX145S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX145S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX145S |
| Bore size | Ø160 mm |
| Stroke | 145 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 SAI160AX145S 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 SAI160AX145S 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 SI160AX145S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×145 | 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 SI160AX145S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring 10053 N push force at 0.5 MPa with robust 40mm SUS420J2 stainless rod endurance.
Automated Clamp Fixture
Secures large fabricated components during machining, relying on 9425 N pull force and adjustable 50mm air cushions for smooth stops.
Replacing the Airtac SI160 Standard Cylinder SI160AX145S with the SAI160AX145S
To replace the SI160AX145S, order the SAI160AX145S. Verify the ISO 15552 mounting interface, 145mm stroke, G3/4 port, and mounting accessory. The -A rod is SUS420J2 stainless and the -S magnet works with CS1-B/DS1-B switches. For sizing, the neighboring 125mm bore yields 6136 N push at 0.5 MPa, while the 200mm bore yields 15708 N. This cylinder does not hold load without air; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for holding. Since the stroke is under 300mm, rod bending is minimal, but always guide external loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX145S
- ✓ 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 SI160AX145S FAQ
Yes, the SI160AX145S is discontinued. The direct replacement is the SAI160AX145S. It shares the same ISO 15552 mounting interface, 160mm bore, 145mm stroke, force, G3/4 port, and accessories, fitting existing fixtures perfectly.
This 160mm bore cylinder features a G3/4 port and delivers 10053 N push / 9425 N pull 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 SAI160AX145S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX145S replacement — usually within 7-8 hours.