This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID63X75, 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 SID63X75
The AirTAC Airtac SID Series Double-Rod Cylinder SID63X75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 75mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID63X75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke75 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAID63X75
- 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 SID63X75
The AirTAC SID63X75 is a discontinued ISO 15552 double-acting double-rod cylinder. A rod exits both ends on one piston, meaning both faces use the rod-side area to deliver equal push and pull force of 1402 N at 0.5 MPa, 1962 N at 0.7 MPa, and 2523 N at 0.9 MPa. It features a 63 mm bore, a 75 mm stroke, a 20 mm piston rod, M16x1.5 rod-end threads, and a fixed G3/8 air port. The direct replacement is the SAID63X75, which shares the same ISO 15552 mounting interface, bore, stroke, force, and port dimensions.
The SAID upgrade introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This SKU lacks a magnet (-S), so it cannot take a magnetic switch. A plain cylinder does not hold its load on air loss; the air cushion only decelerates near stroke end. For a held load, use an external rod lock or the SAIL/BSAI lock variants.
Airtac SID Series Double-Rod Cylinder SID63X75 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID63X75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID63X75 |
| Bore size | Ø63 mm |
| Stroke | 75 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 SAID63X75 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 SAID63X75 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 SID63X75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | 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 SID63X75 Is Used
Synchronized Tool Driving
Drives two separate workstations simultaneously from a single piston, utilizing the equal push and pull force on both rod ends to maintain synchronized machining operations.
Anti-Rotation Transfer
Transfers parts along a conveyor using the dual-rod architecture to prevent mechanical rotation and ensure precise, twist-free placement of components.
External Cam Positioning
Uses the rear exiting rod to carry an external sensor cam, allowing external position tracking without internal magnet switches, which this SKU lacks.
Replacing the Airtac SID Series Double-Rod Cylinder SID63X75 with the SAID63X75
To replace the discontinued SID63X75, order the SAID63X75, which is a direct swap retaining the ISO 15552 mounting interface, 63 mm bore, 75 mm stroke, G3/8 port, and equal both-ways force. Size both directions by confirming the 1402 N at 0.5 MPa (or 1962 N at 0.7 MPa) meets your push and pull requirements, or step to neighbouring bores (50 mm or 80 mm) if you need less or more force. A double rod is the right choice when you need anti-rotation stability, need to drive two tools from one piston, or want to mount a sensor cam on the back rod. You can reuse FA, LB, or TC mounts. Because this SKU lacks the -S magnet, it cannot accept legacy CS1-B/DS1-B sensors. For this 75 mm stroke, side-load is minimal, but for any stroke >=300 mm, ensure proper guide alignment to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID63X75
- ✓ 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 SID63X75 FAQ
Yes, the AirTAC SID63X75 is discontinued. The direct replacement is the SAID63X75. It shares the same ISO 15552 interface, 63 mm bore, 75 mm stroke, G3/8 port, and equal both-ways force, while adding an upgraded piston seal.
Because it is a double-rod cylinder, the push and pull force are equal both ways: 1402 N at 0.5 MPa, 1962 N at 0.7 MPa, and 2523 N at 0.9 MPa. The fixed air port size for the 63 mm bore is G3/8.
Request a Quote for the SAID63X75
Send us the quantity and destination. We confirm price, stock and lead time on the SAID63X75 replacement — usually within 7-8 hours.