This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD100X175STC — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD100X175STC 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 SUD100X175STC is a double-acting profile-type standard cylinder with a Ø100mm bore and 175mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD100X175STC, which matches its bore, stroke, force and mounting.
The AirTAC SUD100X175STC is a double-acting, double-rod profile cylinder featuring a 100mm bore and 175mm stroke. A rod exits both ends of the extruded aluminum barrel on a single piston, meaning push and pull forces are equal both ways at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. This model is discontinued and the exact drop-in replacement is the SAUD100X175STC, retaining the same 1/2" port, M20x1.5 rod thread, and 29mm adjustable cushions.
Because the rear rod can carry a sensor cam or drive a second tool simultaneously, the double-rod design provides excellent anti-rotation stability. From the 3681 N @0.5 MPa force, the computed safe working load is approximately 2209 N, allowing a vertical lift of about 188 kg with a 2:1 margin. The built-in piston magnet (-S) works with legacy CS1-B/DS1-B switches, while the SAUD upgrade transitions to current CMSG/DMSG/EMSG sensors. The TC mounting interface utilizes SC-series accessories.
| Model | Airtac SUD Series Double Rod Cylinder SUD100X175STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD100X175STC |
| Bore size | Ø100 mm |
| Stroke | 175 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 SAUD100X175STC 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 SAUD100X175STC 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. |
| ×175 | 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 from a single piston, utilizing the equal both-ways force to ensure consistent cutting pressure on both strokes without requiring a second cylinder.
Transfers heavy workpieces along a conveyor using the double-rod design to prevent rotational drift, maintaining precise 188 kg vertical lift alignment without external guides.
Applies equal clamping force from both ends of a fixture simultaneously, using the rear rod as a sensor cam to confirm clamp position via legacy CS1-B/DS1-B switches.
To replace the discontinued SUD100X175STC, specify the SAUD100X175STC as a direct drop-in solution, matching the 100mm bore, 175mm stroke, equal both-ways force, and FA/LB mounting compatibility. When sizing both ways, verify that your load requirements fit within the 3681 N @0.5 MPa operating force, or step to neighboring bores if higher force is needed. Choose a double-rod cylinder when anti-rotation control or driving two tools from one piston is required. Note that the -S sensor provision requires changing from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors on the SAUD. For stroke lengths >=300mm, ensure the side-load line remains within acceptable limits to prevent guide wear. A plain cylinder does not hold loads on air loss; add an external rod lock for held loads.
Replacement checklist
Yes, the SUD100X175STC is discontinued. The exact drop-in replacement is the SAUD100X175STC, which matches the 100mm bore, 175mm stroke, 1/2" port, and equal both-ways force. The SAUD also offers the SAUF built-in-valve variant the SU line lacked.
The force is equal both ways at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The bore dictates a fixed 1/2" port (default PT thread), with a 25mm rod and M20x1.5 rod-end thread. The air cushion decelerates the load but does not hold it without live air.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUD100X175STC replacement — usually within 7-8 hours.