This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX375, 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 SI160BX375
The AirTAC SI160 Standard Cylinder SI160BX375 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 375mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX375, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke375 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX375
- 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 SI160BX375
The AirTAC SI160BX375 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 375 mm stroke, delivering 10053 N push force at 0.5 MPa. The direct replacement is the SAI160BX375, retaining the exact G3/4 port, M36x2 rod thread, and ISO 15552 mounting interface for existing fixtures.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU has a SUS304 stainless rod (-B) but lacks a magnet, so it cannot take a CS1-B/DS1-B sensor. For load holding, the air cushion only decelerates; use a SAIL lock variant or external pilot check valve.
Airtac SI160 Standard Cylinder SI160BX375 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX375 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX375 |
| Bore size | Ø160 mm |
| Stroke | 375 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 SAI160BX375 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 SAI160BX375 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 SI160BX375
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×375 | 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 SI160BX375 Is Used
Heavy Stamp Press Feed
Drives heavy metal blanks into a hydraulic stamp press, utilizing the 10053 N push force to overcome material resistance and feed jigs reliably.
Palletized Load Ejection
Ejects fully loaded pallets from a wrapping station, where the 375 mm stroke provides the reach needed to clear the machinery footprint.
Industrial Lift Gate Actuation
Lowers heavy mechanical lift gates weighing up to 512 kg, relying on the SUS304 stainless rod for corrosion resistance in demanding environments.
Replacing the Airtac SI160 Standard Cylinder SI160BX375 with the SAI160BX375
To replace the SI160BX375, order the SAI160BX375 and verify the ISO 15552 mounting interface, 375 mm stroke, and G3/4 port. Because this is a -B rod variant, confirm the SUS304 stainless steel piston rod material. This SKU lacks an -S magnet, meaning it cannot accept legacy CS1-B/DS1-B sensors; if position detection is needed, select a magnet-equipped SAI model. For the 375 mm stroke, use external guides to prevent rod bending and side-load wear. A plain cylinder does not hold load without live air; for secure holding, specify the SAIL (air-released lock) or BSAI (clamp-lock) variant, or add an external rod lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX375
- ✓ 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 SI160BX375 FAQ
Yes, the SI160BX375 is discontinued. The direct replacement is the SAI160BX375. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 375 mm stroke, output force, G3/4 port, and mounting accessories.
This double-acting cylinder features a G3/4 air port. The thrust 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 maximum of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX375
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX375 replacement — usually within 7-8 hours.