This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD80X50S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD80X50S 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 SUD80X50S
The AirTAC Airtac SUD Series Double Rod Cylinder SUD80X50S is a double-acting profile-type standard cylinder with a Ø80mm bore and 50mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD80X50S, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke50 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUD80X50S
About the Airtac SUD Series Double Rod Cylinder SUD80X50S
The AirTAC SUD80X50S is a double-acting double-rod profile cylinder that is officially discontinued. The exact drop-in replacement is the SAUD80X50S, matching the 80mm bore, 50mm stroke, 3/8 inch port, and FA/LB mounting. A rod exits both ends on one piston, meaning both faces use the rod-side area and push and pull force are equal. The extruded aluminium profile barrel is shorter than an ISO 15552 cylinder of the same bore.
Because the rear rod can carry a sensor cam and drive two tools, this design offers excellent anti-rotation stability. Force is 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and 4082 N at 0.9 MPa equal both ways. The computed safe working load is about 1361 N, allowing a vertical lift of roughly 116 kg with a 2:1 margin. This SUD80X50S uses a 25mm rod, M20x1.5 thread, 28mm cushion, and legacy CS1-B/DS1-B sensors; the SAUD uses CMSG/DMSG/EMSG.
Airtac SUD Series Double Rod Cylinder SUD80X50S Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD80X50S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD80X50S |
| Bore size | Ø80 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| 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, 28 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUD80X50S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAUD80X50S 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 SUD80X50S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | 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.
Where the Airtac SUD Series Double Rod Cylinder SUD80X50S Is Used
Dual-Tool Machining Station
Drives two opposing machining heads simultaneously from one piston, utilising the equal both-ways force to ensure perfectly balanced cutting pressure on both sides.
Anti-Rotation Transfer Gate
Uses the twin-rod architecture to prevent mechanical twisting during rapid part diversion on a conveyor, maintaining precise alignment without external linear guides.
Symmetric Pallet Lift
Lifts pallets vertically with a computed safe working load of 1361 N, using the rear rod to carry a sensor cam for accurate mid-stroke positioning feedback.
Replacing the Airtac SUD Series Double Rod Cylinder SUD80X50S with the SAUD80X50S
To replace the discontinued SUD80X50S, select the SAUD80X50S drop-in equivalent, which preserves the exact 80mm bore, 50mm stroke, 3/8 inch port, and FA/LB mounting. When sizing both ways, verify the equal both-ways force fits your load, or step to neighbouring bores (63mm or 100mm) if a different force is required. A double rod is right when you need anti-rotation stability or must drive two tools from one piston. If your SUD80X50S has the -S magnet, note the sensor change from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG on the SAUD. For strokes >=300, verify the side-load line to prevent guide wear. A plain cylinder does not hold loads on air loss; the cushion only decelerates near stroke end, so specify an external rod lock for held loads.
Replacement checklist
- ✓ Same bore / stroke → SAUD80X50S
- ✓ 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 SUD80X50S FAQ
Yes, the SUD80X50S is discontinued. The exact drop-in replacement is the SAUD80X50S, which matches the 80mm bore, 50mm stroke, 3/8 inch port, and FA/LB mounting. The SAUD also offers the SAUF built-in-valve variant the SU line lacked.
The SUD80X50S features a 3/8 inch port and provides equal both-ways force of 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and 4082 N at 0.9 MPa. It never quotes a larger single-rod push value. The safe working load is about 1361 N.
Related AirTAC SAU Cylinders
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