This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX220, 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 SI160AX220
The AirTAC Airtac SI160 Standard Cylinder SI160AX220 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 220mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX220, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke220 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX220
- 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 SI160AX220
The AirTAC SI160AX220 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 220 mm stroke, delivering a 10053 N push force at 0.5 MPa via its G3/4 port. The direct replacement is the SAI160AX220, which preserves the original ISO 15552 mounting interface, bore, stroke, output force, and port size for seamless fixture integration. The SAI upgrade features a refined piston seal using two Y-shaped one-way elements for low start-up pressure and extended life.
Because this SKU lacks the -S magnet suffix, it cannot accept a position switch and must be operated without sensing. For high-temperature environments, Viton H seals raise the operating limit to 150 C.
Airtac SI160 Standard Cylinder SI160AX220 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX220 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX220 |
| Bore size | Ø160 mm |
| Stroke | 220 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 SAI160AX220 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 SAI160AX220 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 SI160AX220
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×220 | 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 SI160AX220 Is Used
Heavy Press Clamping
Generates 14074 N of push force at 0.7 MPa to secure large steel plates during heavy-duty industrial pressing and forming operations.
Injection Mould Ejection
Delivers robust ejection power for large injection moulding machines, utilizing the 50 mm adjustable air cushions to smoothly decelerate heavy mould bases.
Replacing the Airtac SI160 Standard Cylinder SI160AX220 with the SAI160AX220
To replace the discontinued SI160AX220, order the SAI160AX220, confirming the ISO 15552 mounting interface, 160 mm bore, 220 mm stroke, and G3/4 port. This non-magnetic SKU cannot support sensors; if position detection is needed, select an -S variant and use AirTAC switches. When sizing, neighbouring bores offer different forces: the 125 mm bore provides 6136 N push at 0.5 MPa, while the 200 mm bore yields 15708 N. A plain cylinder drifts on air loss because the cushion only decelerates near stroke end; for load holding, specify the SAIL or BSAI lock variant, or use an external pilot check valve. The SUS420J2 stainless rod option suits corrosive settings. Since the 220 mm stroke exceeds 300 mm, ensure guide alignment to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX220
- ✓ 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 SI160AX220 FAQ
Yes, the SI160AX220 is discontinued. The direct replacement is the SAI160AX220. It is dimensionally interchangeable per ISO 15552, maintaining the same 160 mm bore, 220 mm stroke, output force, and G3/4 port so it drops directly into existing fixtures.
This double-acting cylinder features a G3/4 port, a 40 mm rod, and an M36x2 rod thread. It delivers a push force of 10053 N and a pull force of 9425 N 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX220
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX220 replacement — usually within 7-8 hours.