This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID63X140S, 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 SID63X140S
The AirTAC Airtac SID Series Double-Rod Cylinder SID63X140S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 140mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID63X140S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke140 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAID63X140S
- 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 SID63X140S
The AirTAC SID63X140S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, 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 model is discontinued; the direct replacement is the SAID63X140S, retaining the 63mm bore, 140mm stroke, G3/8 port, and M16x1.5 rod thread. The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life.
Because both faces use the rod-side area, the back rod can carry a sensor cam without losing stroke. The -S suffix denotes a piston magnet for legacy CS1-B/DS1-B switches. Note that air cushions only decelerate; use an external rod lock or SAIL/BSAI variant for load holding.
Airtac SID Series Double-Rod Cylinder SID63X140S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID63X140S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID63X140S |
| Bore size | Ø63 mm |
| Stroke | 140 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 SAID63X140S 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 SAID63X140S 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 SID63X140S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×140 | 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 SID63X140S Is Used
Twin-Tool Machining
Drives two opposing machining heads simultaneously from a single piston, utilizing the equal push and pull force to maintain balanced cutting pressure on both ends.
Symmetric Transfer Unit
Transfers workpieces across a conveyor using both rod ends to push and pull carriers, ensuring identical 1402 N force @0.5 MPa in both traverse directions.
Replacing the Airtac SID Series Double-Rod Cylinder SID63X140S with the SAID63X140S
To replace the discontinued SID63X140S, install the SAID63X140S directly—it matches the ISO 15552 mounting interface, 140mm stroke, and G3/8 port. Select a double-rod cylinder when you need equal force both ways or require a rear rod to drive a second tool. If 1402 N @0.5 MPa is insufficient, step up to the 80mm bore (2268 N); if excessive, drop to the 50mm bore (825 N). Reuse FA, LB, or TC mounts. The -S magnet works with legacy CS1-B/DS1-B sensors. For this 140mm stroke, side-load is minimal, but for strokes >=300mm, ensure guide alignment to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID63X140S
- ✓ 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 SID63X140S FAQ
Yes, the SID63X140S is discontinued. The direct replacement is the SAID63X140S. It shares the same ISO 15552 interface, 63mm bore, 140mm stroke, G3/8 port, and equal-both-ways force, but adds an upgraded piston seal.
The G3/8 port feeds a double-acting double-rod design yielding equal force both ways: 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. It cannot hold loads without live air; cushions only decelerate.
Related AirTAC SAI Cylinders
Request a Quote for the SAID63X140S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID63X140S replacement — usually within 7-8 hours.