This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X125TC, 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 SI160X125TC
The AirTAC SI160 Standard Cylinder SI160X125TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 125mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X125TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke125 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X125TC
- 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 SI160X125TC
The AirTAC SI160X125TC is a discontinued double-acting ISO 15552 profile cylinder. Built with an extruded aluminum barrel, it delivers 10053 N push force at 0.5 MPa. Because this legacy unit is end-of-life, AirTAC supplies the SAI160X125TC as the direct replacement. It preserves the 160 mm bore, 125 mm stroke, G3/4 port, and TC trunnion mounting interface, so it drops directly into existing fixtures.
The SAI upgrade introduces a refined piston seal utilizing two Y-shaped one-way elements for low start-up pressure and extended life. Note that this specific SKU lacks a magnet (-S), meaning it cannot accept CS1-B or DS1-B sensors.
Airtac SI160 Standard Cylinder SI160X125TC Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X125TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X125TC |
| Bore size | Ø160 mm |
| Stroke | 125 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 SAI160X125TC 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 SAI160X125TC 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 SI160X125TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×125 | 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 SI160X125TC Is Used
Heavy Press Operations
Drives substantial forming and stamping presses where 10053 N of push force at 0.5 MPa is required to shape thick materials.
Pallet Handling
Shifts loaded pallets on conveyors using the TC trunnion mount to accommodate pivoting lift mechanisms.
Industrial Clamp Systems
Secures large fabricated components during machining, utilizing the 125 mm stroke to clear workpieces easily.
Replacing the Airtac SI160 Standard Cylinder SI160X125TC with the SAI160X125TC
To replace the discontinued SI160X125TC, order the SAI160X125TC. Verify your TC trunnion mounting hardware, 125 mm stroke, and G3/4 air connections. The ISO 15552 mounting dimensions remain identical. If you need position sensing, select an SAI variant with the magnet (-S) since this base model cannot hold a switch. For sizing, neighboring bores offer alternatives: a 200 mm bore yields 15708 N push at 0.5 MPa, while a 125 mm bore provides 6136 N. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding, specify the SAIL lock, BSAI clamp-lock, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X125TC
- ✓ 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 SI160X125TC FAQ
Yes, the SI160X125TC is discontinued. The direct replacement is the SAI160X125TC. It is dimensionally interchangeable per ISO 15552, maintaining the same 160 mm bore, 125 mm stroke, G3/4 port, and TC mounting interface.
This double-acting cylinder features a G3/4 port. It delivers a push force of 10053 N and a pull force of 9425 N at 0.5 MPa. At 0.7 MPa, the push force is 14074 N, and the theoretical maximum is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X125TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X125TC replacement — usually within 7-8 hours.