This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX115S, 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 SI160BX115S
The AirTAC SI160 Standard Cylinder SI160BX115S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 115mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX115S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke115 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX115S
- 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 SI160BX115S
The AirTAC SI160BX115S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 115 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI160BX115S, matching the interface, stroke, force and mounting. This unit features a SUS304 stainless piston rod (-B) and a piston magnet (-S) for legacy CS1-B/DS1-B sensors.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Note that plain cylinders drift without live air; for load holding, explore the SAIL or BSAI lock variants.
Airtac SI160 Standard Cylinder SI160BX115S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX115S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX115S |
| Bore size | Ø160 mm |
| Stroke | 115 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 SAI160BX115S 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 SAI160BX115S 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 SI160BX115S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×115 | 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 SI160BX115S Is Used
Heavy Press Operations
Drives substantial forming and stamping presses, utilizing the 10053 N push force at 0.5 MPa to deform heavy materials reliably.
Pallet Lift Actuation
Actuates robust lifting arms in automated palletizers, moving loads safely within the computed 512 kg vertical lift margin.
Large Clamp Fixtures
Secures oversized industrial components during machining, leveraging the SUS304 stainless rod for corrosion resistance in harsh environments.
Replacing the Airtac SI160 Standard Cylinder SI160BX115S with the SAI160BX115S
To replace the SI160BX115S, order the SAI160BX115S. Confirm the ISO 15552 mounting interface, 115 mm stroke, G3/4 port, and mounting accessories. The -B rod is SUS304 stainless steel, and the -S magnet works with legacy CS1-B/DS1-B switches (the SAI uses current AirTAC switches). To size both ways, the 125 mm bore neighbor offers 6136 N push at 0.5 MPa, while the 160 mm bore hits 14074 N at 0.7 MPa. Because this is a plain cylinder, it will not hold a load without air; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. For any stroke over 300 mm, add external guides to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX115S
- ✓ 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 SI160BX115S FAQ
Yes, the SI160BX115S is discontinued. The direct replacement is the SAI160BX115S. It is dimensionally interchangeable per ISO 15552, offering the same 160 mm bore, 115 mm stroke, force, G3/4 port, and mounting interface.
This double-acting cylinder features a G3/4 port and delivers a push force of 10053 N and pull of 9425 N at 0.5 MPa. At 0.7 MPa it pushes 14074 N, and the theoretical maximum is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX115S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX115S replacement — usually within 7-8 hours.