This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD63X300 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD63X300 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.

The AirTAC Airtac SUD Series Double Rod Cylinder SUD63X300 is a double-acting profile-type standard cylinder with a Ø63mm bore and 300mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD63X300, which matches its bore, stroke, force and mounting.
The AirTAC SUD63X300 is a double-acting, double-rod profile cylinder featuring a 63mm bore and 300mm stroke. A rod exits both ends on a single piston, meaning both faces use the rod-side area and push/pull force is equal both ways at 1402N @0.5MPa, 1962N @0.7MPa, and 2523N @0.9MPa. This discontinued model uses an extruded aluminum profile barrel, a 20mm rod, M16x1.5 rod threads, and a 3/8" port. As a drop-in replacement, the SAUD63X300 matches the exact bore, stroke, force, port, and FA/LB mounting.
This non-magnetic SKU (no -S suffix) cannot take a sensor, whereas the SAUD upgrade supports current CMSG/DMSG/EMSG sensors (this legacy unit used CS1-B/DS1-B). The dual-rod design drives two tools simultaneously and provides anti-rotation stability. For sizing, the 1402N @0.5MPa force yields a safe working load of roughly 841N (60%) and a vertical lift capacity of about 71kg with a 2:1 margin. Note that air cushions only decelerate the piston near stroke end; a plain cylinder drifts on air loss, so use an external rod lock for load holding. At 300mm stroke, external guides are recommended to prevent rod bending under side loads.
| Model | Airtac SUD Series Double Rod Cylinder SUD63X300 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD63X300 |
| Bore size | Ø63 mm |
| Stroke | 300 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 SAUD63X300 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAUD63X300 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.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×300 | 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.
Drives two opposing tools simultaneously from one body, utilizing the equal push and pull force on both rod ends for synchronized gripping.
Lifts loads up to roughly 71kg vertically with a 2:1 margin using the dual-rod geometry to prevent piston rotation without external guides.
Pushes parts across a conveyor using the 3/8" port cylinder, relying on adjustable cushions to decelerate the 300mm stroke smoothly.
To replace the discontinued SUD63X300, use the SAUD63X300 drop-in: it preserves the 63mm bore, 300mm stroke, 3/8" port, and FA/LB mounting. When sizing both ways, neighboring bores (50mm or 80mm) alter the equal-both-ways force, so stick with 63mm if 1402N @0.5MPa is required. A double rod is right when you need anti-rotation stability or must drive two tools from one cylinder. This non-magnetic SKU cannot take a switch; the SAUD upgrade uses CMSG/DMSG/EMSG sensors (legacy was CS1-B/DS1-B). For this 300mm stroke, add external guides to manage side-load and rod-bending risks.
Replacement checklist
Yes, the SUD63X300 is discontinued. The exact drop-in replacement is the SAUD63X300, which matches the 63mm bore, 300mm stroke, 3/8" port, and FA/LB mounting.
Force is equal both ways at 1402N @0.5MPa, 1962N @0.7MPa, and 2523N @0.9MPa. The port is 3/8". Air cushions only decelerate; use an external rod lock for load holding.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUD63X300 replacement — usually within 7-8 hours.