This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD50X175S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD50X175S 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 SUD50X175S
The AirTAC Airtac SUD Series Double Rod Cylinder SUD50X175S is a double-acting profile-type standard cylinder with a Ø50mm bore and 175mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD50X175S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke175 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUD50X175S
About the Airtac SUD Series Double Rod Cylinder SUD50X175S
The AirTAC SUD50X175S is a discontinued double-acting double-rod profile cylinder featuring a 50mm bore, 175mm stroke, and a 1/4 inch air port. A piston rod exits both ends of the extruded aluminium barrel, meaning push and pull forces are equal at 825N @0.5 MPa, 1154N @0.7 MPa, and 1484N @0.9 MPa. The exact drop-in replacement is the SAUD50X175S, which matches the bore, stroke, M16x1.5 rod thread, and FA/LB mounting options without any footprint changes.
Because the rod extends through both end caps, the rear rod can carry a sensor cam or drive a second tool simultaneously while resisting rotation. With a safe working load of roughly 495N (60 percent of the 825N @0.5 MPa rating) and a vertical lift capacity of about 42kg with a 2:1 margin, this unit is highly effective for balanced actuation. Note that the standard air cushion only decelerates the piston near stroke end; it does not hold loads on air loss, so an external rod lock is required for suspended loads. The SAUD upgrade transitions from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors.
Airtac SUD Series Double Rod Cylinder SUD50X175S Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD50X175S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD50X175S |
| Bore size | Ø50 mm |
| Stroke | 175 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| 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 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUD50X175S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAUD50X175S 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 SUD50X175S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | 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.
Where the Airtac SUD Series Double Rod Cylinder SUD50X175S Is Used
Dual-Tool Machining Station
Drives two opposing tools simultaneously from a single piston, utilising the equal both-ways force to maintain balanced cutting or clamping pressure on both ends.
Anti-Rotation Transfer Gate
Uses the twin-rod profile to prevent mechanical twist during rapid part diversion on a packaging line, ensuring smooth lateral transfers without binding.
Symmetrical Lift Fixture
Lifts a 42kg vertical payload using the equal push and pull forces, with the rear rod providing a stable mounting point for a CMSG sensor cam.
Replacing the Airtac SUD Series Double Rod Cylinder SUD50X175S with the SAUD50X175S
To replace the discontinued SUD50X175S, order the SAUD50X175S by inserting an A after the leading S. This drop-in upgrade retains the 50mm bore, 175mm stroke, 1/4 inch port, and FA/LB mounting interface. When sizing both ways, verify that the equal push/pull force of 825N @0.5 MPa suits your load, and consider neighbouring bores (63mm for more force, 40mm for less) if your application parameters have shifted. A double-rod design is the right choice when you need anti-rotation stability, equal force in both directions, or a back rod to mount a sensor cam. Because this unit has the S suffix, you must upgrade your position sensing from legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG series used by the SAUD. For this 175mm stroke, ensure your side-load moments remain within the manufacturer's allowable limits, as longer strokes increase guide wear. Mounting compatibility is strictly with the AirTAC SC series accessories.
Replacement checklist
- ✓ Same bore / stroke → SAUD50X175S
- ✓ 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 SUD50X175S FAQ
Yes, the SUD50X175S is discontinued. The exact drop-in replacement is the SAUD50X175S, which matches the 50mm bore, 175mm stroke, 1/4 inch port, and FA/LB mounting. You only need to upgrade the position sensors from legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG series.
Because the rod exits both ends, force is equal both ways: 825N @0.5 MPa, 1154N @0.7 MPa, and 1484N @0.9 MPa. The air port is 1/4 inch, the rod is 20mm with an M16x1.5 thread, and speed ranges from 30-800 mm/s. The cushion only decelerates the piston and will not hold a load without live air.
Related AirTAC SAU Cylinders
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