This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX300, 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 SI160AX300
The AirTAC SI160 Standard Cylinder SI160AX300 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 300mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX300, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke300 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX300
- 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 SI160AX300
The AirTAC SI160AX300 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 300 mm stroke. It delivers 10053 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI160AX300, matching the interface, stroke and force.
This SKU features a SUS420J2 stainless piston rod but lacks a magnet, so it cannot accept position switches. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure. For load holding, note the air cushion only decelerates; use an external rod lock.
Airtac SI160 Standard Cylinder SI160AX300 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX300 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX300 |
| Bore size | Ø160 mm |
| Stroke | 300 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 SAI160AX300 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 SAI160AX300 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 SI160AX300
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×300 | 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 SI160AX300 Is Used
Heavy Press Clamping
Generates 14074 N at 0.7 MPa to secure large steel fabrications during heavy machining or welding operations.
Injection Mould Ejection
Delivers robust push force to eject dense plastic or aluminium components from industrial moulding tools.
Replacing the Airtac SI160 Standard Cylinder SI160AX300 with the SAI160AX300
To replace the SI160AX300, order the SAI160AX300. Confirm the ISO 15552 mounting interface, the 300 mm stroke, and the G3/4 port. Because this is a non-magnet SKU, it cannot take CS1-B/DS1-B sensors; if sensing is needed, specify an SAI with the magnet option. Neighbouring bores are 125 mm (6136 N push @0.5 MPa) and 200 mm (15708 N push @0.5 MPa). For load holding on air loss, use the SAIL or BSAI lock variant, or a pilot check valve. As the 300 mm stroke invites rod bending, use external guides to prevent side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX300
- ✓ 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 SI160AX300 FAQ
Yes, the AirTAC SI160AX300 is discontinued. The direct replacement is the SAI160AX300. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 300 mm stroke, G3/4 port and mounting accessories.
The bore is 160 mm with a G3/4 port. Force output is 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and a theoretical maximum of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX300
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX300 replacement — usually within 7-8 hours.