This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX40, 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 SI160BX40
The AirTAC Airtac SI160 Standard Cylinder SI160BX40 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 40mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX40, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke40 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX40
- 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 SI160BX40
The AirTAC SI160BX40 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 40 mm stroke. Delivering 10053 N push force at 0.5 MPa, it features a SUS304 stainless piston rod (-B) and a G3/4 air port. The direct replacement is the SAI160BX40, matching the interface, force, and port exactly.
This SKU lacks a magnet and cannot accept a sensor. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure. For load holding, note the cushion only decelerates; use an external rod lock or SAIL variant.
Airtac SI160 Standard Cylinder SI160BX40 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX40 |
| Bore size | Ø160 mm |
| Stroke | 40 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 SAI160BX40 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 SAI160BX40 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 SI160BX40
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×40 | 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 SI160BX40 Is Used
Heavy Stamping
Generates 14074 N at 0.7 MPa for high-tonnage metal forming and stamping presses requiring a short 40 mm travel.
Press Fit Assembly
Ideal for driving large bearings into heavy machinery housings, utilizing the 10053 N push force at 0.5 MPa.
Rigid Clamping
Secures thick steel plates during welding or machining, taking advantage of the 9425 N pull force and SUS304 rod.
Replacing the Airtac SI160 Standard Cylinder SI160BX40 with the SAI160BX40
To replace the SI160BX40, order the SAI160BX40 and confirm the ISO 15552 mounting interface, 40 mm stroke, G3/4 port, and SUS304 rod (-B). Because this SKU has no -S magnet, it cannot take a CS1-B/DS1-B sensor; if sensing is needed, switch to a magnet-equipped SAI. Sizing both ways: the 160 mm bore yields 10053 N push at 0.5 MPa, while the neighboring 125 mm bore offers 6136 N. For loads needing 14074 N at 0.7 MPa, the 160 mm is correct. Remember, a plain cylinder drifts without live air; for held loads use a pilot check valve or the BSAI clamp-lock variant. Viton H seals raise the temperature range to 0-150 C.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX40
- ✓ 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 SI160BX40 FAQ
Yes, the SI160BX40 is discontinued. The direct replacement is the SAI160BX40. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 40 mm stroke, 10053 N force, G3/4 port, and mounting accessories.
The G3/4 port bore delivers a push of 10053 N and pull of 9425 N at 0.5 MPa. At 0.7 MPa push is 14074 N, and 18095 N at 0.9 MPa. The theoretical max force is 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX40
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX40 replacement — usually within 7-8 hours.