This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID160X450, 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 SID Series Double-Rod Cylinder SID160X450
The AirTAC Airtac SID Series Double-Rod Cylinder SID160X450 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 450mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID160X450, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke450 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAID160X450
- 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 SID Series Double-Rod Cylinder SID160X450
The AirTAC SID160X450 is a double-acting, double-rod ISO 15552 cylinder featuring a 160mm bore and 450mm stroke. A rod exits both ends on one piston, meaning both faces use the rod-side area, so push and pull force are equal both ways at 9425 N @0.5 MPa, 13194 N @0.7 MPa, and 16964 N @0.9 MPa. This SID model is discontinued and end-of-life; the direct replacement is the SAID160X450, matching the ISO 15552 interface, bore, stroke, G3/4 port, and mounting. The SAI replacement uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
With a 40mm rod, M36x2 thread, and 50mm adjustable air cushions at each end, this unit runs at 30-500 mm/s. This SKU has no -S magnet and cannot take a magnetic switch. A plain cylinder does not hold its load on air loss; the cushion only decelerates near stroke end. For held loads use an external rod lock or pilot-operated check valve (or the SAIL/BSAI lock variant).
Airtac SID Series Double-Rod Cylinder SID160X450 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID160X450 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID160X450 |
| Bore size | Ø160 mm |
| Stroke | 450 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 SAID160X450 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 SAID160X450 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SID Series Double-Rod Cylinder SID160X450
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×450 | 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 SID Series Double-Rod Cylinder SID160X450 Is Used
Twin-Tool Drive Station
Uses both extending rods to drive two opposing tools simultaneously with equal 9425 N force at 0.5 MPa, ensuring perfectly balanced machining or forming pressure.
Anti-Rotation Transfer Gate
The dual-rod architecture prevents piston rotation during long 450mm strokes, maintaining precise alignment for heavy conveyor diverting gates without external guides.
Symmetrical Pallet Stopper
Applies equal push and pull clamping force to halt and release pallets, leveraging the 160mm bore's 13194 N @0.7 MPa output for heavy-load logistics handling.
Replacing the Airtac SID Series Double-Rod Cylinder SID160X450 with the SAID160X450
To replace the discontinued SID160X450, use the SAID160X450 direct: same ISO 15552 mounting interface, 450mm stroke, and G3/4 port. Size both ways by checking equal force at neighbouring bores (e.g. 125mm yields 5734 N @0.5 MPa, 200mm yields 15080 N @0.5 MPa) to ensure the 9425 N @0.5 MPa requirement is met. A double rod is right when you need anti-rotation, or when the back rod carries a sensor cam or drives two tools. Reuse FA, LB, or TC mounts. As this is a non-magnet SKU, it cannot take a sensor. For the 450mm stroke, add external guides to prevent rod-bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID160X450
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SID Series Double-Rod Cylinder SID160X450 FAQ
Yes, the SID160X450 is discontinued. The direct replacement is the SAID160X450, which matches the ISO 15552 interface, bore, stroke, G3/4 port, and mounting. The SAI family also adds SAIL and BSAI lock variants the SI line lacked.
Force is equal both ways: 9425 N @0.5 MPa, 13194 N @0.7 MPa, and 16964 N @0.9 MPa. The air port is G3/4. It operates at 0.15-1.0 MPa, runs at 30-500 mm/s, and has 50mm adjustable cushions.
Related AirTAC SAI Cylinders
Request a Quote for the SAID160X450
Send us the quantity and destination. We confirm price, stock and lead time on the SAID160X450 replacement — usually within 7-8 hours.