This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X210, 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 SI160X210
The AirTAC SI160 Standard Cylinder SI160X210 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 210mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X210, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke210 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X210
- 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 SI160X210
The AirTAC SI160X210 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 210 mm stroke. It delivers a thrust of 10053 N at 0.5 MPa using a G3/4 air port. Because this legacy SI unit is end-of-life, you should order the direct replacement: the SAI160X210. It shares the same ISO 15552 mounting interface, bore, stroke, output force, and port size, fitting directly into existing fixtures.
The SAI160X210 upgrade features a refined piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note that this specific SKU lacks a magnet (-S) and cannot accept a CS1-B/DS1-B sensor. If your application requires load holding on air loss, explore the SAIL or BSAI lock variants, as standard cushions only decelerate.
Airtac SI160 Standard Cylinder SI160X210 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X210 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X210 |
| Bore size | Ø160 mm |
| Stroke | 210 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 SAI160X210 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 SAI160X210 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 SI160X210
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×210 | 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 SI160X210 Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring high thrust, utilizing the 10053 N force at 0.5 MPa to form thick metal components reliably.
Large Mold Clamping
Secures substantial injection molds or heavy industrial fixtures during production changes, relying on the rigid 160 mm ISO 15552 profile barrel.
Replacing the Airtac SI160 Standard Cylinder SI160X210 with the SAI160X210
To replace the discontinued SI160X210, order the SAI160X210. Confirm the ISO 15552 mounting interface (LB, FA, CA, TC, etc.), the 210 mm stroke, and the G3/4 port thread (PT, G, or NPT). This non-magnetic SKU cannot support position sensing; if switches are needed, select an SAI160X210S and use current AirTAC sensors. For force sizing, this bore yields 10053 N push at 0.5 MPa; if less force is acceptable, a 125 mm bore provides 6136 N. If more force is required, the 200 mm bore offers 15708 N. Because the 210 mm stroke exceeds 300 mm? No, but for any stroke over 300 mm, ensure external guide bearings to prevent rod bending and side-load wear. A plain cylinder drifts without live air, so for suspended loads use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X210
- ✓ 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 SI160X210 FAQ
Yes, the AirTAC SI160X210 is discontinued. The direct replacement is the SAI160X210. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 210 mm stroke, output force, G3/4 port, and mounting accessories.
This double-acting cylinder uses 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 SAI160X210
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