This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID63X500S, 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 SID63X500S
The AirTAC Airtac SID Series Double-Rod Cylinder SID63X500S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 500mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID63X500S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke500 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAID63X500S
- 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 SID63X500S
The AirTAC SID63X500S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, ensuring push and pull force is equal both ways at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. This 63mm bore model features a 20mm piston rod, M16x1.5 rod thread, 30mm adjustable cushions, and a fixed G3/8 air port. The SID series is discontinued, but the direct replacement is the SAID63X500S. The SAI family uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life, while retaining the identical ISO 15552 mounting interface, bore, stroke, and force.
Because both faces use the rod-side area, this double-rod design provides anti-rotation stability and allows the back rod to carry a sensor cam or drive two tools simultaneously. With the -S suffix, this unit includes a built-in piston magnet for legacy CS1-B/DS1-B switches (the SAI replacement uses current AirTAC switches). Note that a plain cylinder does not hold loads on air loss; the cushion only decelerates near stroke end, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SID Series Double-Rod Cylinder SID63X500S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID63X500S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID63X500S |
| Bore size | Ø63 mm |
| Stroke | 500 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 SAID63X500S 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 SAID63X500S 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 SID63X500S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×500 | 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 SID63X500S Is Used
Inline Transfer Pusher
Equal both-ways force drives a conveyor pusher off both rod ends, advancing and retracting parts with identical 1402 N @0.5 MPa power without stroke drift.
Dual-Tool Machining Slide
The second rod drives an opposing tool or clamp simultaneously, leveraging the 30mm adjustable cushions to decelerate the 500mm travel smoothly at both ends.
Replacing the Airtac SID Series Double-Rod Cylinder SID63X500S with the SAID63X500S
To replace the discontinued SID63X500S, install the direct replacement SAID63X500S, which matches the 63mm bore, 500mm stroke, G3/8 port, and ISO 15552 mounting dimensions (Basic, FA, LB, TC, FTC, TCM1, TCM2). When sizing both ways, verify the equal force of 1402 N @0.5 MPa is sufficient; if not, evaluate neighbor bores like the 50mm (825 N) or 80mm (2268 N) while maintaining the double-rod symmetry. A double rod is right when you need anti-rotation resistance, equal push/pull power, or a back rod to mount a sensor cam. The -S magnet enables position sensing. Because the 500mm stroke is long, account for side-load and rod-bending by using external guides to prevent premature seal wear. Operating speed is 30-800 mm/s.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID63X500S
- ✓ 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 SID63X500S FAQ
Yes, the SID63X500S is discontinued. The direct replacement is the SAID63X500S, sharing the same 63mm bore, 500mm stroke, G3/8 port, and ISO 15552 mounting interface. The SAI replacement also features an upgraded piston seal for longer life.
Being 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. The air port is G3/8, the rod is 20mm with an M16x1.5 thread, and speed ranges from 30-800 mm/s. The air cushion only decelerates; it does not hold loads on air loss.
Related AirTAC SAI Cylinders
Request a Quote for the SAID63X500S
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