This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD80X25STC — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD80X25STC 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 SUD80X25STC
The AirTAC Airtac SUD Series Double Rod Cylinder SUD80X25STC is a double-acting profile-type standard cylinder with a Ø80mm bore and 25mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD80X25STC, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke25 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUD80X25STC
About the Airtac SUD Series Double Rod Cylinder SUD80X25STC
The AirTAC SUD80X25STC is a discontinued double-acting double-rod profile cylinder featuring a 80mm bore and 25mm stroke. A rod exits both ends on one piston, meaning both faces use the rod-side area to deliver equal force both ways: 2268N at 0.5MPa, 3175N at 0.7MPa, and 4082N at 0.9MPa. The bore dictates a 3/8 inch port, a 25mm rod, and M20x1.5 rod threads. This model is discontinued and the exact drop-in replacement is the SAUD80X25STC, retaining the same body, force, port, and SC-series FA/LB mounting.
The SAUD upgrade switches to current CMSG/DMSG/EMSG sensors from the legacy CS1-B/DS1-B switches used here, and offers an SAUF built-in-valve variant. For sizing, the 2268N force at 0.5MPa yields a safe working load of roughly 1361N, translating to a 116kg vertical lift with a 2:1 margin. The twin rods prevent rotation and can drive two tools simultaneously. Note that air cushions only decelerate near stroke end; an external rod lock is required for load holding.
Airtac SUD Series Double Rod Cylinder SUD80X25STC Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD80X25STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD80X25STC |
| Bore size | Ø80 mm |
| Stroke | 25 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 SAUD80X25STC 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 SAUD80X25STC 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 SUD80X25STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×25 | 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 SUD80X25STC Is Used
Dual-Tool Drive
Uses the extended back rod to drive a secondary mechanism simultaneously, leveraging the 3175N equal force at 0.7MPa without requiring a second cylinder.
Anti-Rotation Transfer
Moves parts along a conveyor with high torsional resistance. The twin 25mm rods prevent piston rotation during rapid 30-800mm/s transit.
Compact Profile Lift
Lifts loads vertically in tight packaging cells. The extruded aluminium profile barrel is shorter than standard cylinders of the same 80mm bore.
Replacing the Airtac SUD Series Double Rod Cylinder SUD80X25STC with the SAUD80X25STC
To replace the discontinued SUD80X25STC, specify the SAUD80X25STC drop-in, which preserves the 80mm bore, 25mm stroke, 3175N equal-both-ways force at 0.7MPa, and 3/8 inch port. Size both directions by checking neighbouring bores if you need more or less power, remembering the push and pull forces are identical. Choose this double-rod configuration when you need anti-rotation stability or want to drive two tools from one cylinder. Mounting uses SC-series FA or LB accessories. If your SUD has the -S magnet, upgrade your switches from CS1-B/DS1-B to CMSG/DMSG/EMSG. For any stroke >=300, verify the side-load limits. Because cushions only decelerate, add an external rod lock for held loads.
Replacement checklist
- ✓ Same bore / stroke → SAUD80X25STC
- ✓ 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 SUD80X25STC FAQ
Yes, the SUD80X25STC is discontinued. The exact drop-in replacement is the SAUD80X25STC, which matches the 80mm bore, 25mm stroke, 3/8 inch port, and FA/LB mounting. You must upgrade sensors from CS1-B/DS1-B to CMSG/DMSG/EMSG.
Because it is a double-rod cylinder, force is equal both ways at 2268N at 0.5MPa, 3175N at 0.7MPa, and 4082N at 0.9MPa. The 80mm bore uses a 3/8 inch port, a 25mm rod, and M20x1.5 threads.
Related AirTAC SAU Cylinders
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