This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD63X250S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD63X250S 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 SUD63X250S
The AirTAC Airtac SUD Series Double Rod Cylinder SUD63X250S is a double-acting profile-type standard cylinder with a Ø63mm bore and 250mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD63X250S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke250 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUD63X250S
About the Airtac SUD Series Double Rod Cylinder SUD63X250S
The AirTAC SUD63X250S is a double-acting, double-rod profile cylinder featuring a 63mm bore and 250mm stroke. A rod exits both ends on a single piston, meaning push and pull forces 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 SAUD63X250S, retaining the same 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 the rear rod can carry a sensor cam or drive two tools simultaneously while resisting rotation, double-rod designs excel in compact synchronizing tasks. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches; the SAUD replacement upgrades to current CMSG/DMSG/EMSG sensors. For sizing, the safe working load is roughly 841 N (60% of the 0.5 MPa force), allowing a vertical lift of about 71 kg with a 2:1 margin. Note that air cushions only decelerate near stroke end; an external rod lock is required for load holding.
Airtac SUD Series Double Rod Cylinder SUD63X250S Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD63X250S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD63X250S |
| Bore size | Ø63 mm |
| Stroke | 250 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 SAUD63X250S 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 SAUD63X250S 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 SUD63X250S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×250 | 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 SUD63X250S Is Used
Synchronized Transfer Pushers
Drives opposing pusher arms on a conveyor line simultaneously, utilizing the equal both ways force to move parts evenly without rotational twist.
Dual-Tool Machining Station
Powers two separate tools from one compact profile body, using the rod extending from both ends to perform opposing machining operations.
Guided Vertical Lifts
Lifts guided loads vertically where the double-rod geometry prevents piston rotation, keeping the tooling platform perfectly aligned.
Replacing the Airtac SUD Series Double Rod Cylinder SUD63X250S with the SAUD63X250S
To replace the discontinued SUD63X250S, specify the SAUD63X250S as a direct drop-in solution, matching the 63mm bore, 250mm stroke, 3/8" port, and basic/FA/LB mounting. When sizing both ways, verify the equal-both-ways force fits your needs: the 63mm bore yields 1402 N @0.5 MPa, while the neighboring 50mm bore yields 825 N, and the 80mm bore yields 2268 N. Choose a double-rod cylinder when you need anti-rotation stability, a rear rod to mount a sensor cam, or to drive two tools in opposite directions. For the -S magnet option, plan to upgrade from legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors. For stroke lengths of 300mm or greater, carefully manage side-load alignment to prevent premature seal wear. Remember, the cushion only decelerates; use an external rod lock for held loads.
Replacement checklist
- ✓ Same bore / stroke → SAUD63X250S
- ✓ 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 SUD63X250S FAQ
Yes, the SUD63X250S is discontinued. The exact drop-in replacement is the SAUD63X250S, which matches the 63mm bore, 250mm stroke, 3/8" port, and basic/FA/LB mounting. The SAUD also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
Because it is a double-rod cylinder, the force is equal both ways: 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. The air port size is 3/8" (default PT thread), and the rod end thread is M16x1.5.
Related AirTAC SAU Cylinders
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