This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD63X400S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD63X400S in place of this model. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.
Airtac SUD Series Double Rod Cylinder SUD63X400S
The AirTAC Airtac SUD Series Double Rod Cylinder SUD63X400S is a double-acting profile-type standard cylinder with a Ø63mm bore and 400mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD63X400S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke400 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUD63X400S
About the Airtac SUD Series Double Rod Cylinder SUD63X400S
The AirTAC SUD63X400S is a double-acting, double-rod profile cylinder featuring a 63mm bore and 400mm stroke. A rod exits both ends on a single piston, meaning push and pull force are equal both ways at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. This SUD model is discontinued; the exact drop-in replacement is the SAUD63X400S, retaining the 3/8" port, M16x1.5 rod thread, and basic/FA/LB mounting. The extruded aluminum profile barrel is shorter than an ISO 15552 cylinder of the same bore.
Because both faces use the rod-side area, force is identical in both directions. This configuration provides anti-rotation benefits and allows the back rod to carry a sensor cam for dual-tool driving. With a 1402 N @0.5 MPa output, the computed safe working load is roughly 841 N (60%), translating to a vertical lift capacity of about 71 kg with a 2:1 margin. This -S model includes a piston magnet for legacy CS1-B/DS1-B switches; the SAUD replacement upgrades to current CMSG/DMSG/EMSG sensors. Note that the air cushion only decelerates near stroke end and does not hold loads on air loss—an external rod lock is required for holding.
Airtac SUD Series Double Rod Cylinder SUD63X400S Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD63X400S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD63X400S |
| Bore size | Ø63 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| 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, 21 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUD63X400S carries the same 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 SAUD63X400S produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUD Series Double Rod Cylinder SUD63X400S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×400 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Where the Airtac SUD Series Double Rod Cylinder SUD63X400S Is Used
Dual-Tool Transfer
Drives two opposing grippers simultaneously on a conveyor line, utilizing the equal both-ways force to push and pull parts with identical power.
Guided Vertical Lift
Lifts loads up to 71 kg vertically with a 2:1 safety margin, relying on the second rod to resist rotation and maintain precise vertical alignment.
Rear-Cam Sensing
Uses the extended back rod to carry a sensor cam, allowing position confirmation in tight spaces where front-side sensors would obstruct the primary work area.
Replacing the Airtac SUD Series Double Rod Cylinder SUD63X400S with the SAUD63X400S
To replace the discontinued SUD63X400S, install the drop-in SAUD63X400S which matches the 63mm bore, 400mm stroke, 3/8" port, and FA/LB mounting. When sizing both ways, verify your force requirements against the equal both-ways output (1402 N @0.5 MPa); if marginally lacking, step up to the 80mm bore, or step down to the 50mm bore if overspecified. Choose a double-rod cylinder when you need anti-rotation, dual-tool driving, or a rear sensor cam. For the 400mm stroke, add external guides to prevent rod-bending under side-load. The -S suffix means the SAUD upgrade requires swapping legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors.
Replacement checklist
- ✓ Same bore / stroke → SAUD63X400S
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SUD Series Double Rod Cylinder SUD63X400S FAQ
Yes, the SUD63X400S is discontinued. The exact drop-in replacement is the SAUD63X400S, which matches the 63mm bore, 400mm stroke, 3/8" port, and FA/LB mounting. You must upgrade the legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors.
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. Operating speed ranges from 30-800 mm/s. The 3/8" port and 21mm adjustable cushion at each end manage deceleration.
Related AirTAC SAU Cylinders
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