This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD100X450 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD100X450 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 SUD100X450 is a double-acting profile-type standard cylinder with a Ø100mm bore and 450mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD100X450, which matches its bore, stroke, force and mounting.
The AirTAC SUD100X450 is a double-acting, double-rod profile cylinder featuring a 100mm bore and 450mm stroke. A rod exits both ends on one piston, meaning both faces use the rod-side area and push and pull force are equal at 3681N @0.5 MPa, 5153N @0.7 MPa, and 6626N @0.9 MPa. This discontinued extruded aluminium profile barrel is shorter than an ISO 15552 cylinder of the same bore and uses a 1/2 inch port with an M20x1.5 rod-end thread. This SKU has no magnet and cannot take a magnetic switch.
As an end-of-life product, the exact drop-in replacement is the SAUD100X450, which shares the same bore, stroke, equal force, port, and SC-series FA/LB mounting compatibility. The SAU replacement uses current CMSG/DMSG/EMSG sensors, whereas this legacy model used CS1-B/DS1-B switches. For practical sizing, the safe working load is roughly 2209N (about 60 percent of the 3681N @0.5 MPa figure), allowing a vertical lift of approximately 188kg with a 2:1 margin. A plain cylinder does not hold its load on air loss; the 29mm adjustable air cushion only decelerates near stroke end, so use an external rod lock for held loads.
| Model | Airtac SUD Series Double Rod Cylinder SUD100X450 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD100X450 |
| Bore size | Ø100 mm |
| Stroke | 450 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 SAUD100X450 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 SAUD100X450 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. |
| ×450 | 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 extending rods, ensuring perfectly synchronized cutting cycles with equal push and pull force.
Uses the twin-rod architecture to prevent mechanical twist during heavy part diversion on a conveyor, maintaining precise alignment without external guides.
Pushes pallets from either side of an aisle with identical 3681N @0.5 MPa force, allowing a single cylinder to handle bidirectional material routing.
To replace the discontinued SUD100X450, select the drop-in SAUD100X450, which preserves the 100mm bore, 450mm stroke, 1/2 inch port, and equal-both-ways force. When sizing both ways, verify the 3681N @0.5 MPa output fits your system, or evaluate neighbouring bores if margins allow. A double rod is right when you need equal force in both directions, anti-rotation stability, or a back rod to drive a second tool. Mounting is limited to Basic, FA, and LB styles. Because this SKU lacks a magnet, it cannot take a switch; the SAUD upgrade requires CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. For this 450mm stroke, add external guides to prevent rod-bending and side-load damage.
Replacement checklist
Yes, the SUD100X450 is discontinued. The exact drop-in replacement is the SAUD100X450, which matches the 100mm bore, 450mm stroke, 1/2 inch port, and FA/LB mounting. The SAUD uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
Because it is a double-rod cylinder, force is equal both ways: 3681N @0.5 MPa, 5153N @0.7 MPa, and 6626N @0.9 MPa. The bore dictates a 1/2 inch port, the rod is Ø25mm with an M20x1.5 thread, and speed is 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUD100X450 replacement — usually within 7-8 hours.