This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X175STC, 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 SI160X175STC
The AirTAC SI160 Standard Cylinder SI160X175STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 175mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X175STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke175 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X175STC
- 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 SI160X175STC
The AirTAC SI160X175STC is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 175 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port. AirTAC replaced this legacy unit with the SAI160X175STC, a direct sharing the exact ISO 15552 mounting interface, bore, stroke, force, port and TC trunnion mount.
The SAI upgrade features a refined piston seal with two Y-shaped one-way elements for low start-up pressure and long life. It also adds SAIL and BSAI lock variants absent in the SI line. The -S magnet works with CS1-B/DS1-B sensors, while Viton H seals raise heat to 150 C.
Airtac SI160 Standard Cylinder SI160X175STC Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X175STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X175STC |
| Bore size | Ø160 mm |
| Stroke | 175 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 SAI160X175STC 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 SAI160X175STC 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 SI160X175STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×175 | 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 SI160X175STC Is Used
Heavy Pressing
Drives large stamping and forming presses requiring 14074 N output at 0.7 MPa.
Pallet Lifting
Lifts heavy pallets and materials, safely managing vertical loads up to 512 kg.
Clamp Systems
Secures oversized workpieces in machining fixtures using the TC trunnion mount.
Replacing the Airtac SI160 Standard Cylinder SI160X175STC with the SAI160X175STC
To replace the SI160X175STC, order the SAI160X175STC. Confirm the ISO 15552 TC trunnion interface, 175 mm stroke, G3/4 port, and -S magnet for CS1-B/DS1-B switches. Sizing both ways: the 125 mm bore yields 6136 N push at 0.5 MPa, while the 200 mm bore yields 15708 N. A plain cylinder drifts on air loss since cushions only decelerate; use a pilot check valve or SAIL/BSAI lock variant to hold loads. The 40 mm rod and M36x2 thread handle high side loads, but for any stroke over 300 mm, guide external rods to prevent bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X175STC
- ✓ 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 SI160X175STC FAQ
Yes, the SI160X175STC is discontinued. The direct replacement is the SAI160X175STC. It shares the same ISO 15552 mounting interface, 160 mm bore, 175 mm stroke, force, G3/4 port and TC trunnion mount, fitting existing fixtures perfectly.
This double-acting cylinder has a G3/4 port. It delivers 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and a theoretical max of 2050 kgf at 1.0 MPa. The rod is 40 mm with an M36x2 thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X175STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X175STC replacement — usually within 7-8 hours.