This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX220S, 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 SI160BX220S
The AirTAC SI160 Standard Cylinder SI160BX220S 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 SAI160BX220S, 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 → SAI160BX220S
- 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 SI160BX220S
The AirTAC SI160BX220S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore, 220 mm stroke, and a SUS304 stainless piston rod. Delivering 10053 N thrust at 0.5 MPa, it is replaced by the direct replacement SAI160BX220S, which shares the exact G3/4 port, M36x2 thread, and ISO 15552 mounting interface.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure. The SAI family also adds SAIL and BSAI lock variants lacking in the SI line.
Airtac SI160 Standard Cylinder SI160BX220S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX220S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX220S |
| 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 SAI160BX220S 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 SAI160BX220S 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 SI160BX220S
| 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 SI160BX220S Is Used
Heavy Stamping
Drives large presses and metal-forming actuators requiring 10053 N thrust at 0.5 MPa with robust SUS304 rod resistance.
Pallet Handling
Indexes heavy loaded pallets on conveyors where the 220 mm stroke and 512 kg vertical lift capacity provide reliable positioning.
Automated Clamping
Secures oversized workpieces in machining centers, using the 50 mm adjustable air cushions to decelerate heavy masses smoothly.
Replacing the Airtac SI160 Standard Cylinder SI160BX220S with the SAI160BX220S
To replace this SI160BX220S, order the SAI160BX220S keeping the 160 mm bore, 220 mm stroke, SUS304 rod, and -S magnet. Confirm the ISO 15552 mounting accessory and G3/4 port. Sizing both ways: the 200 mm bore yields 15708 N push at 0.5 MPa, while the 125 mm yields 6136 N. For strokes >=300 mm, use a guide to prevent rod bending. A plain cylinder drifts on air loss; for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. The -S magnet supports legacy CS1-B/DS1-B sensors.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX220S
- ✓ 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 SI160BX220S FAQ
Yes, the SI160BX220S is discontinued. The direct replacement is the SAI160BX220S. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 220 mm stroke, 10053 N force, G3/4 port, and mounting interface.
The 160 mm bore has a 40 mm rod, M36x2 thread, G3/4 port, 50 mm cushion, and 30-500 mm/s speed. Forces are: push 10053 N and pull 9425 N at 0.5 MPa, push 14074 N at 0.7 MPa, push 18095 N at 0.9 MPa, and a max force of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX220S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX220S replacement — usually within 7-8 hours.