This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD80X125S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD80X125S 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 SUD80X125S
The AirTAC Airtac SUD Series Double Rod Cylinder SUD80X125S is a double-acting profile-type standard cylinder with a Ø80mm bore and 125mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD80X125S, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke125 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUD80X125S
About the Airtac SUD Series Double Rod Cylinder SUD80X125S
The AirTAC SUD80X125S is a double-acting double-rod profile cylinder featuring a 80mm bore and 125mm 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 2268N @0.5MPa, 3175N @0.7MPa, and 4082N @0.9MPa. This extruded aluminium profile barrel is shorter than an ISO 15552 cylinder of the same bore. This SUD model is discontinued and the exact drop-in replacement is the SAUD80X125S, retaining the same 3/8 port, M20x1.5 rod thread, and 28mm adjustable air cushion at each end.
Because the second rod drives a sensor cam and resists rotation, double-rod architecture is ideal for precision guiding. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches; the SAUD replacement upgrades to current CMSG/DMSG/EMSG sensors. For sizing, the safe working load is roughly 1361N (about 60% of the 2268N @0.5MPa figure), yielding a vertical lift capacity of approximately 116kg with a 2:1 margin. Note that a plain cylinder does not hold its load on air loss; the air cushion only decelerates near stroke end, so use an external rod lock for held loads.
Airtac SUD Series Double Rod Cylinder SUD80X125S Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD80X125S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD80X125S |
| Bore size | Ø80 mm |
| Stroke | 125 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 SAUD80X125S 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 SAUD80X125S 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 SUD80X125S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×125 | 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 SUD80X125S Is Used
Dual-Tool Transfer
Uses both rod ends to drive two opposing tools simultaneously with identical 2268N force at 0.5MPa.
Anti-Rotation Guide
The twin rods prevent piston rotation during extended 125mm travel for precision profile alignment.
Cam-Sensor Tracking
The rear rod carries a magnet for legacy CS1-B/DS1-B switches to confirm position from the opposite end.
Replacing the Airtac SUD Series Double Rod Cylinder SUD80X125S with the SAUD80X125S
To replace the discontinued SUD80X125S, specify the SAUD80X125S drop-in which matches the 80mm bore, 125mm stroke, 3/8 port, and FA/LB mounting. Size both ways by checking neighbouring bores while confirming the equal both ways force fits your payload. A double rod is right when you need anti-rotation or a back rod to carry a sensor cam. The -S sensor change from CS1-B/DS1-B to CMSG/DMSG/EMSG is required on the SAU. For stroke >=300, verify the side-load line to prevent guide wear.
Replacement checklist
- ✓ Same bore / stroke → SAUD80X125S
- ✓ 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 SUD80X125S FAQ
Yes, the SUD80X125S is discontinued. The exact drop-in replacement is the SAUD80X125S, which keeps the same bore, stroke, force, and 3/8 port.
The double-rod design provides equal both ways force of 2268N @0.5MPa, 3175N @0.7MPa, and 4082N @0.9MPa. The 80mm bore dictates a fixed 3/8 port.
Related AirTAC SAU Cylinders
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