This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X450S, 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 SID80X450S
The AirTAC Airtac SID Series Double-Rod Cylinder SID80X450S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 450mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID80X450S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke450 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID80X450S
- 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 SID80X450S
The AirTAC SID80X450S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, making push and pull force equal at 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. The bore is 80 mm, the port is G3/8, and the rod thread is M20x1.5. This SID model is discontinued and the direct replacement is the SAID80X450S, which reuses the same ISO 15552 mounting interface and adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life.
Because both faces use the rod-side area, the second rod provides anti-rotation stability and can carry a sensor cam or drive a second tool. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches. Note that air cushions only decelerate near stroke end; an external rod lock or SAIL/BSAI variant is required to hold loads on air loss.
Airtac SID Series Double-Rod Cylinder SID80X450S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID80X450S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X450S |
| Bore size | Ø80 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID80X450S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAID80X450S 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 SID80X450S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | 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 SID80X450S Is Used
Gripper Synchronization
Drives opposing grippers or dual-tool stations where the second rod outputs an identical 3175 N @0.7 MPa force while preventing rotational twist.
Transfer Pusher
Moves workpieces along a line using equal both ways thrust, with the rear rod end carrying a cam to trigger legacy CS1-B/DS1-B sensors.
Replacing the Airtac SID Series Double-Rod Cylinder SID80X450S with the SAID80X450S
To replace the discontinued SID80X450S, specify the SAID80X450S, which matches the 80 mm bore, 450 mm stroke, G3/8 port, and 36 mm adjustable cushion. Both ways force is equal, so if you need more thrust consider the neighbouring 100 mm bore, or drop to 63 mm for lower force. Choose a double-rod configuration when you need anti-rotation or a back rod to mount a sensor cam. Mounting uses FA, LB, or TC brackets on the ISO 15552 interface. The -S magnet enables position sensing. At 450 mm stroke, use external guides to prevent rod bending under side loads. A plain cylinder drifts on air loss, so use an external rod lock for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID80X450S
- ✓ 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 SID80X450S FAQ
Yes, the SID80X450S is discontinued. The direct replacement is the SAID80X450S. It shares the same ISO 15552 mounting interface, 80 mm bore, 450 mm stroke, G3/8 port, and equal both ways force, but adds an upgraded piston seal.
The G3/8 port feeds a 25 mm rod. Because it is double-rod, force is equal both ways: 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAID80X450S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X450S replacement — usually within 7-8 hours.