This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX400TC, 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 SI160BX400TC
The AirTAC SI160 Standard Cylinder SI160BX400TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 400mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX400TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke400 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX400TC
- 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 SI160BX400TC
The AirTAC SI160BX400TC is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 400 mm stroke. It delivers a thrust of 10053 N at 0.5 MPa. The direct replacement is the SAI160BX400TC, retaining the same TC trunnion mount, G3/4 port, and M36x2 rod thread. The SAI upgrade features an improved piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life.
This specific SKU lacks a magnet (-S), meaning it cannot accept legacy CS1-B/DS1-B sensors. It uses the SUS304 stainless steel piston rod (-B) for corrosion resistance. Note that a plain cylinder drifts without live air; use an external rod lock or the SAIL/BSAI lock variants for load holding.
Airtac SI160 Standard Cylinder SI160BX400TC Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX400TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX400TC |
| Bore size | Ø160 mm |
| Stroke | 400 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 SAI160BX400TC 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 SAI160BX400TC 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 SI160BX400TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×400 | 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 SI160BX400TC Is Used
Heavy Machinery Forming
Drives large press dies and forming platens requiring high thrust, utilizing the 10053 N push force at 0.5 MPa.
Automated Material Routing
Actuates heavy-duty routing gates on assembly lines via the ISO 15552 TC trunnion mount over the 400 mm travel.
Replacing the Airtac SI160 Standard Cylinder SI160BX400TC with the SAI160BX400TC
To replace the discontinued SI160BX400TC, order the SAI160BX400TC. Confirm the ISO 15552 TC trunnion mounting interface, 400 mm stroke, G3/4 port, and the SUS304 rod option (-B). Because this SKU has no magnet, it cannot support position sensing. Sizing both ways: a 160 mm bore yields 10053 N push at 0.5 MPa, while the neighboring 125 mm bore offers 6136 N. For load holding on air loss, the cushion only decelerates; add an external pilot check valve or use the SAIL/BSAI lock variants. With a 400 mm stroke, use external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX400TC
- ✓ 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 SI160BX400TC FAQ
Yes, the SI160BX400TC is discontinued. The direct replacement is the SAI160BX400TC. It is dimensionally interchangeable per ISO 15552, maintaining the same bore, stroke, force, G3/4 port, and TC mounting interface.
The G3/4 port bore delivers a push force of 10053 N and a pull force of 9425 N at 0.5 MPa. At 0.7 MPa push is 14074 N, at 0.9 MPa it is 18095 N, and the theoretical max is 2050 kgf at 1.0 MPa. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX400TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX400TC replacement — usually within 7-8 hours.