This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID63X270, 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 SID63X270
The AirTAC Airtac SID Series Double-Rod Cylinder SID63X270 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 270mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID63X270, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke270 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAID63X270
- 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 SID63X270
The AirTAC SID63X270 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston, ensuring push and pull force are equal at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. This SKU has no -S magnet and cannot take a magnetic switch. It features a 63mm bore, 270mm stroke, M16x1.5 rod thread, G3/8 port, and 30mm adjustable air cushions.
This SID model is discontinued; the direct replacement is the SAID63X270, which reuses the same ISO 15552 mounting interface, bore, and stroke. The SAI upgrade uses a two Y-shaped one-way piston seal for low start-up pressure. A plain cylinder drifts on air loss, as cushions only decelerate; use an external rod lock for held loads.
Airtac SID Series Double-Rod Cylinder SID63X270 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID63X270 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID63X270 |
| Bore size | Ø63 mm |
| Stroke | 270 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID63X270 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAID63X270 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 SID63X270
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×270 | 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 SID63X270 Is Used
Synchronized Tool Driving
Drives two separate work tools simultaneously from opposite rod ends, utilizing the equal both ways force to maintain perfectly synchronized machining or clamping operations.
Anti-Rotation Transfer
The dual-rod architecture prevents piston rotation during traverse, providing highly stable part transfer in packaging and assembly lines without external linear guides.
Equal-Force Ejection
Delivers identical 1402 N @0.5 MPa push and pull forces to eject parts cleanly from a mold on the extend stroke and reset the ejector pin on the retract stroke.
Replacing the Airtac SID Series Double-Rod Cylinder SID63X270 with the SAID63X270
To replace the discontinued SID63X270, swap directly to the SAID63X270, matching the 63mm bore, 270mm stroke, and G3/8 port. Size both ways using the equal-both-ways force: 1402 N @0.5 MPa, 1962 N @0.7 MPa, or 2523 N @0.9 MPa. If more force is needed, step up to the 80mm bore; for less, the 50mm bore provides 825 N @0.5 MPa. A double rod is right when you need anti-rotation stability or must drive two tools from one piston. Mounting options include Basic, FA, LB, and TC. This non-magnetic SKU cannot take sensors. For this 270mm stroke, ensure correct alignment to avoid side-load issues.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID63X270
- ✓ 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 SID63X270 FAQ
Yes, the AirTAC SID63X270 is discontinued. The direct replacement is the SAID63X270. It shares the same ISO 15552 mounting interface, 63mm bore, 270mm stroke, G3/8 port, and equal both ways force, while adding an upgraded two Y-shaped one-way piston seal for lower start-up pressure.
The double-acting double-rod design provides equal force both ways: 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. The bore is 63mm with a G3/8 air port, a 20mm rod, M16x1.5 rod thread, 30mm adjustable cushions, and an operating speed of 30-800 mm/s. It operates at 0.15-1.0 MPa and -20 to +70 C.
Related AirTAC SAI Cylinders
Request a Quote for the SAID63X270
Send us the quantity and destination. We confirm price, stock and lead time on the SAID63X270 replacement — usually within 7-8 hours.