This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX155S, 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 SI160AX155S
The AirTAC Airtac SI160 Standard Cylinder SI160AX155S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 155mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX155S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke155 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX155S
- 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 SI160AX155S
The AirTAC SI160AX155S is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore and 155 mm stroke. Built with an extruded aluminum barrel and adjustable air cushions, it delivers a robust 10053 N push force at 0.5 MPa. The direct replacement is the SAI160AX155S, matching the bore, stroke, force, G3/4 port, and ISO 15552 mounting interface for seamless fixture integration.
The SAI upgrade introduces an advanced piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. This specific unit includes the -A SUS420J2 stainless piston rod for corrosion resistance and the -S magnet for legacy CS1-B/DS1-B sensors.
Airtac SI160 Standard Cylinder SI160AX155S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX155S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX155S |
| Bore size | Ø160 mm |
| Stroke | 155 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 SAI160AX155S 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 SAI160AX155S 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 SI160AX155S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×155 | 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 SI160AX155S Is Used
Heavy Press Operations
Ideal for high-tonnage pressing and forming tasks requiring the full 14074 N push force at 0.7 MPa with stable ISO 15552 mounting.
Pallet Lift Stations
Handles vertical lifting of heavy loads up to 512 kg safely, utilizing the robust 160 mm bore and 155 mm stroke for compact elevation changes.
Large Mold Clamping
Secures substantial injection molds or heavy industrial fixtures, taking advantage of the corrosion-resistant SUS420J2 stainless rod.
Replacing the Airtac SI160 Standard Cylinder SI160AX155S with the SAI160AX155S
To replace the discontinued SI160AX155S, order the SAI160AX155S and verify your ISO 15552 mounting interface, 155 mm stroke, and G3/4 port. The -A suffix dictates a SUS420J2 stainless rod, while -S confirms the piston magnet for position sensing. When sizing, a neighboring 200 mm bore offers higher force, while dropping to 125 mm reduces it; at 0.5 MPa, this 160 mm bore yields 10053 N push and 9425 N pull. Note that a standard cylinder drifts without live air—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding, or specify the SAIL or BSAI lock variants. Since the stroke is under 300 mm, rod bending side-loads are minimal, but standard guide considerations still apply.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX155S
- ✓ 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 SI160AX155S FAQ
Yes, the SI160AX155S is discontinued. The direct replacement is the SAI160AX155S. It is dimensionally interchangeable per ISO 15552, maintaining the same bore, stroke, output force, G3/4 port, and mounting accessories.
This double-acting cylinder uses a G3/4 air port. It generates 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and 18095 N push at 0.9 MPa. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX155S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX155S replacement — usually within 7-8 hours.