This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX145, 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 SI160BX145
The AirTAC Airtac SI160 Standard Cylinder SI160BX145 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 SAI160BX145, 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 → SAI160BX145
- 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 SI160BX145
The AirTAC SI160BX145 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 145 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI160BX145, matching the interface, M36x2 rod thread, and 50 mm cushions.
This SKU features a SUS304 stainless steel rod (-B) and no magnet, meaning it cannot accept CS1-B/DS1-B sensors. The SAI upgrade uses two Y-shaped piston seals for low start-up pressure. For safe sizing, target 6032 N working load (60% of 0.5 MPa push) or 512 kg vertical lift.
Airtac SI160 Standard Cylinder SI160BX145 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX145 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX145 |
| 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 SAI160BX145 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 SAI160BX145 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 SI160BX145
| 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 SI160BX145 Is Used
Heavy Press Forming
Applies the 14074 N @0.7 MPa thrust for stamping or forming robust sheet metal components in automated lines.
Industrial Clamp
Secures large workpieces during machining, relying on the 50 mm adjustable cushions to decelerate the 160 mm bore.
Replacing the Airtac SI160 Standard Cylinder SI160BX145 with the SAI160BX145
To replace the SI160BX145, order the SAI160BX145 to retain the exact ISO 15552 mounting dimensions, 145 mm stroke, G3/4 port, and SUS304 rod. Size both ways: drop to bore 125 (6136 N @0.5 MPa) to save space, or jump to bore 200 (15708 N) for more power. Note that plain cylinders drift without air; use an external pilot check valve or SAIL lock for holding. Since stroke is under 300 mm, rod bending is low, but guide side-loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX145
- ✓ 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 SI160BX145 FAQ
Yes, the AirTAC SI160BX145 is discontinued. The direct replacement is the SAI160BX145, which shares the identical ISO 15552 mounting interface, 160 mm bore, 145 mm stroke, force, and G3/4 port.
It uses 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 max of 2050 kgf at 1.0 MPa. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX145
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX145 replacement — usually within 7-8 hours.