This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X800STC, 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 SI160X800STC
The AirTAC SI160 Standard Cylinder SI160X800STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 800mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X800STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke800 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X800STC
- 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 SI160X800STC
The AirTAC SI160X800STC is a discontinued double-acting ISO 15552 profile cylinder with an 800 mm stroke, delivering 10053 N of push force at 0.5 MPa through its G3/4 port. AirTAC replaced this legacy unit with the SAI160X800STC, a direct upgrade sharing the exact ISO 15552 mounting interface, bore, and TC trunnion hardware. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. For load holding, note that a standard cylinder drifts on air loss—the cushion only decelerates—so consider the SAIL lock or BSAI clamp-lock variants.
The -S suffix denotes a piston magnet for legacy CS1-B/DS1-B sensors, while Viton H seal options elevate operating temperatures up to 150 C. Because the 800 mm stroke is substantial, external guides are recommended to prevent rod bending under side loads.
Airtac SI160 Standard Cylinder SI160X800STC Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X800STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X800STC |
| Bore size | Ø160 mm |
| Stroke | 800 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 SAI160X800STC 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 SAI160X800STC 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 SI160X800STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×800 | 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 SI160X800STC Is Used
Heavy Stamp Press Feed
Drives large material stock into heavy stamping presses, utilizing the 10053 N push force at 0.5 MPa to move substantial weights reliably.
Large Mold Handling
Positions heavy injection molds along the 800 mm travel distance, requiring external guides to prevent rod bending during transit.
Replacing the Airtac SI160 Standard Cylinder SI160X800STC with the SAI160X800STC
To replace the discontinued SI160X800STC, order the SAI160X800STC direct equivalent, verifying the ISO 15552 TC trunnion mount, G3/4 port, and the -S magnet for current AirTAC switches. When sizing both ways, a 125 mm bore offers 6136 N push at 0.5 MPa, while a 200 mm bore provides 15708 N; alternatively, pushing this 160 mm bore to 0.7 MPa yields 14074 N. For load holding on air loss, a plain cylinder drifts because the cushion only decelerates—use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. Finally, at 800 mm of stroke, employ external guides to mitigate rod-bending and side-load risks.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X800STC
- ✓ 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 SI160X800STC FAQ
Yes, the SI160X800STC is discontinued. The direct replacement is the SAI160X800STC, which matches the ISO 15552 mounting interface, bore, stroke, G3/4 port, and TC trunnion. The SAI adds an upgraded two Y-shaped element piston seal for longer life.
The 160 mm bore features a G3/4 port and delivers 10053 N push / 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N push at 0.9 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 SAI160X800STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X800STC replacement — usually within 7-8 hours.