This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID63X225, 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 SID63X225
The AirTAC Airtac SID Series Double-Rod Cylinder SID63X225 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 225mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID63X225, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke225 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAID63X225
- 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 SID63X225
The AirTAC SID63X225 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, ensuring push and pull force remain equal at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. This SKU is discontinued and drops directly into the exact same mounting interface as the SAID63X225 replacement, retaining the 63mm bore, 225mm stroke, and G3/8 air port. Because this specific configuration lacks the -S suffix, it cannot accept a magnetic piston switch. The SAI upgrade also introduces an improved two-piece Y-shaped piston seal for lower start-up pressure and longer life.
The twin rods resist rotation and can drive two tools simultaneously, while the carbon/SUS420J2 A and SUS304 B rod material options adapt to different environmental needs. Note that a plain cylinder drifts on air loss; the adjustable 30mm cushions only decelerate near stroke end, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SID Series Double-Rod Cylinder SID63X225 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID63X225 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID63X225 |
| Bore size | Ø63 mm |
| Stroke | 225 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 SAID63X225 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 SAID63X225 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 SID63X225
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×225 | 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 SID63X225 Is Used
Twin-Tool Synchronous Drive
Drives two independent workstations simultaneously from one piston, utilizing the dual extending rods to maintain perfectly synchronized machining or clamping operations.
Equal-Force Transfer Pusher
Pushes and retracts heavy pallets on a conveyor line, taking advantage of the identical 1402 N push and pull force at 0.5 MPa for consistent cycling.
Replacing the Airtac SID Series Double-Rod Cylinder SID63X225 with the SAID63X225
To replace the discontinued SID63X225, install the direct replacement SAID63X225, which matches the ISO 15552 mounting footprint, 225mm stroke, and G3/8 port without modifications. Size both directions by leveraging the equal 1962 N force at 0.7 MPa; if you need less force, step down to the 50mm bore, or step up to the 80mm bore for more power. A double-rod design is the right choice when you need anti-rotation stability or must drive two mechanisms from one piston. Mounting options include Basic, FA, LB, and TC brackets. This non-magnetic SKU cannot use sensors, so add the -S suffix if you need legacy CS1-B/DS1-B detection. For this 225mm stroke, side-load alignment is acceptable, but for any stroke over 300mm, ensure guide rails to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID63X225
- ✓ 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 SID63X225 FAQ
Yes, the SID63X225 is discontinued. The direct replacement is the SAID63X225, which shares the identical ISO 15552 mounting interface, 63mm bore, 225mm stroke, and G3/8 port. The SAI family also adds upgraded piston seals and SAIL/BSAI lock variants.
Because it is a double-rod cylinder, force is equal both ways: 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. It uses a G3/8 air port, features a 20mm piston rod, and operates at speeds of 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAID63X225
Send us the quantity and destination. We confirm price, stock and lead time on the SAID63X225 replacement — usually within 7-8 hours.