This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD100X50S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD100X50S 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 SUD100X50S is a double-acting profile-type standard cylinder with a Ø100mm bore and 50mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD100X50S, which matches its bore, stroke, force and mounting.
The AirTAC SUD100X50S is a discontinued double-acting double-rod profile cylinder featuring a 100mm bore and 50mm stroke. A rod exits both ends on one piston, meaning push and pull force are equal at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The exact drop-in replacement is the SAUD100X50S, retaining the same 1/2 inch port, M20x1.5 rod thread, and 29mm adjustable cushions. 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 a second tool simultaneously, this design prevents rotation without external guides. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches; the SAUD replacement upgrades to current CMSG/DMSG/EMSG sensors. Based on the 3681 N @0.5 MPa figure, the computed safe working load is roughly 2209 N, allowing a vertical lift of approximately 188 kg with a 2:1 margin. Note that air cushions only decelerate near stroke end; an external rod lock is required to hold loads safely.
| Model | Airtac SUD Series Double Rod Cylinder SUD100X50S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD100X50S |
| Bore size | Ø100 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUD100X50S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAUD100X50S 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). |
|---|---|
| 100 | Bore size in mm. |
| ×50 | 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 machining heads simultaneously using both rod ends, ensuring perfectly synchronized cutting cycles without phase delay.
Uses the inherent torsional rigidity of the double-rod profile to actuate a heavy transfer gate without twisting or requiring external linear bearings.
Extends a physical stop on the front rod while the rear rod simultaneously trips a legacy CS1-B/DS1-B sensor cam to confirm gate position.
To replace the discontinued SUD100X50S, order the drop-in SAUD100X50S, which matches the 100mm bore, 50mm stroke, equal-both-ways force, 1/2 inch port, and FA/LB mounting. When sizing both ways, verify that the 3681 N @0.5 MPa force fits your load, or step to neighboring bores if more capacity is needed. A double rod is right when you need anti-rotation stability or a rear rod to mount a sensor cam. If upgrading the -S magnet sensors, swap the legacy CS1-B/DS1-B for CMSG/DMSG/EMSG. For this 50mm stroke, side-load is minimal, but for any stroke >=300mm, ensure guide alignment to prevent binding.
Replacement checklist
Yes, the SUD100X50S is discontinued. The exact drop-in replacement is the SAUD100X50S. It matches the 100mm bore, 50mm stroke, 1/2 inch port, and FA/LB mounting. The SAUD also offers the SAUF built-in-valve variant the SU line lacked, and uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
Because it is a double-rod cylinder, force is equal both ways: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The air port is 1/2 inch, the piston rod is 25mm, and the rod-end thread is M20x1.5. Operating pressure is 0.15-1.0 MPa with a 29mm adjustable cushion at each end.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUD100X50S replacement — usually within 7-8 hours.