This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX300, 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 SI160BX300
The AirTAC SI160 Standard Cylinder SI160BX300 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 SAI160BX300, 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 → SAI160BX300
- 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 SI160BX300
The AirTAC SI160BX300 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 300 mm stroke. Delivering 10053 N push force at 0.5 MPa, it features a G3/4 air port, M36x2 rod thread, and 50 mm adjustable air cushions. This SKU has a SUS304 stainless piston rod (-B) for corrosion resistance but lacks a magnet, so it cannot accept position switches.
The direct replacement is the SAI160BX300, matching the ISO 15552 mounting interface, bore, stroke, force, and port. The SAI upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life.
Airtac SI160 Standard Cylinder SI160BX300 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX300 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX300 |
| 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 SAI160BX300 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 SAI160BX300 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 SI160BX300
| 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 SI160BX300 Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring 10053 N push force at 0.5 MPa, utilizing the 50 mm adjustable cushion to absorb high kinetic energy.
Large Mold Clamping
Secures oversized industrial molds on machining centers, using the G3/4 port for rapid high-volume actuation across the 300 mm stroke.
Replacing the Airtac SI160 Standard Cylinder SI160BX300 with the SAI160BX300
To replace the SI160BX300, order the SAI160BX300. It is a direct per the ISO 15552 mounting interface, retaining the 160 mm bore, 300 mm stroke, G3/4 port, and SUS304 rod. Because this SKU lacks a magnet (-S), it cannot use CS1-B/DS1-B sensors; if sensing is needed, specify an SAI160BX300S. Sizing both ways: the 10053 N push at 0.5 MPa handles heavy loads, while neighbouring bores (125 mm or 200 mm) offer 6136 N or 15708 N respectively. Note that a plain cylinder drifts on air loss—the cushion only decelerates; for load holding, use the SAIL or BSAI lock variants, or an external pilot check valve. For this 300 mm stroke, use external guides to prevent rod-bending side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX300
- ✓ 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 SI160BX300 FAQ
Yes, the SI160BX300 is discontinued. The direct replacement is the SAI160BX300. It matches the ISO 15552 mounting interface, 160 mm bore, 300 mm stroke, force, and G3/4 port, fitting existing fixtures perfectly while adding an upgraded piston seal.
It has a G3/4 air port. Force ratings are: 10053 N push and 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. It operates at 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX300
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX300 replacement — usually within 7-8 hours.