This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X800S, 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 SI160X800S
The AirTAC SI160 Standard Cylinder SI160X800S 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 SAI160X800S, 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 → SAI160X800S
- 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 SI160X800S
The AirTAC SI160X800S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 800 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI160X800S, matching the exact interface, stroke, and force.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also adds SAIL, SAIF, and BSAI variants the SI lacked. The -S magnet works with CS1-B/DS1-B switches.
Airtac SI160 Standard Cylinder SI160X800S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X800S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X800S |
| 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 SAI160X800S 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 SAI160X800S 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 SI160X800S
| 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 SI160X800S Is Used
Heavy Stamp Press
Drives large stamping dies requiring 10053 N push force at 0.5 MPa over an 800 mm travel distance.
Bulk Material Gate
Actuates heavy bulkhead gates on production lines, utilizing the 50 mm adjustable cushion.
Replacing the Airtac SI160 Standard Cylinder SI160X800S with the SAI160X800S
To replace the SI160X800S, order the SAI160X800S. It drops into existing ISO 15552 fixtures with the same 160 mm bore, 800 mm stroke, M36x2 thread, and G3/4 port. Confirm your mounting accessory (LB, FA, TC) and the -S magnet for CS1-B/DS1-B sensors. Sizing both ways: a 200 mm bore offers more force, while a 125 mm bore provides 6136 N push at 0.5 MPa. Because stroke is 800 mm, use an external guide to prevent rod-bending side loads. The air cushion only decelerates; for load holding on air loss, use the SAIL lock variant or an external pilot check valve. Rod options include carbon, SUS420J2, or SUS304.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X800S
- ✓ 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 SI160X800S FAQ
Yes, the SI160X800S is discontinued. The direct replacement is the SAI160X800S. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 800 mm stroke, output force, G3/4 port, and mounting interface.
This double-acting cylinder uses a G3/4 port. It generates 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 max of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X800S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X800S replacement — usually within 7-8 hours.