This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X75, 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 SID80X75
The AirTAC Airtac SID Series Double-Rod Cylinder SID80X75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 75mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID80X75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke75 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID80X75
- 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 SID80X75
The AirTAC SID80X75 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston. Both faces use the rod-side area, meaning push and pull force are equal at 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. The bore dictates a fixed G3/8 air port, M20x1.5 rod-end thread, and 36 mm adjustable air cushions at each end. This SKU has no -S magnet and cannot take a magnetic switch. The SID line is discontinued; the direct replacement is the SAID80X75, matching the 80 mm bore, 75 mm stroke, and ISO 15552 mounting interface.
The SAI replacement family uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. A double-rod design prevents rotation and lets the back rod drive a second tool. Note that air cushions only decelerate near stroke end; for load holding on air loss, use an external rod lock or the SAIL/BSAI lock variants.
Airtac SID Series Double-Rod Cylinder SID80X75 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID80X75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X75 |
| Bore size | Ø80 mm |
| Stroke | 75 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 SAID80X75 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 SAID80X75 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 SID80X75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×75 | 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 SID80X75 Is Used
Twin-Tool Machining Station
Drives two opposing machining heads from one piston, utilizing the equal both ways force to deliver 2268 N @0.5 MPa cutting pressure on both the advance and retract strokes.
Anti-Rotation Transfer Gate
Uses the dual-rod architecture to prevent mechanical rotation during rapid 75 mm transfers across a packaging line, maintaining precise alignment without external guides.
Replacing the Airtac SID Series Double-Rod Cylinder SID80X75 with the SAID80X75
To replace the discontinued SID80X75, install the direct replacement SAID80X75, which preserves the ISO 15552 mounting interface, G3/8 port, and equal both ways force. When sizing both ways, verify the 2268 N @0.5 MPa output fits your system, or step to neighbouring bores like the 100 mm or down to the 63 mm for lower force. Choose a double-rod cylinder when you need anti-rotation stability or must drive two tools from one piston. Mounting options include Basic, FA, LB, and TC. For strokes >=300 mm, verify your side-load limits to prevent guide wear. This non-magnetic SKU cannot support sensors; if sensing is needed, select an -S model and use legacy CS1-B/DS1-B switches.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID80X75
- ✓ 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 SID80X75 FAQ
Yes, the AirTAC SID80X75 is discontinued. The direct replacement is the SAID80X75, which matches the 80 mm bore, 75 mm stroke, G3/8 port, and ISO 15552 mounting interface. The SAI family also adds upgraded piston seals and SAIL or BSAI lock variants.
Because it is a double-rod cylinder, force is equal both ways: 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. It operates at 30-800 mm/s, uses a 25 mm rod with an M20x1.5 thread, and has 36 mm adjustable cushions.
Request a Quote for the SAID80X75
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X75 replacement — usually within 7-8 hours.