This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD40X75S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD40X75S 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 SUD40X75S
The AirTAC Airtac SUD Series Double Rod Cylinder SUD40X75S is a double-acting profile-type standard cylinder with a Ø40mm bore and 75mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD40X75S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke75 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUD40X75S
About the Airtac SUD Series Double Rod Cylinder SUD40X75S
The AirTAC SUD40X75S is a double-acting, double-rod profile cylinder featuring a 40mm bore and 75mm stroke. Because a rod exits both ends on one piston, both faces use the rod-side area, making push and pull force equal at 528N @0.5MPa, 739N @0.7MPa, and 950N @0.9MPa. This model is discontinued; the exact drop-in replacement is the SAUD40X75S, retaining the 1/4" port, M12x1.25 rod thread, and 21mm cushions.
The double-rod design prevents piston rotation and allows the back rod to drive a second tool or carry a sensor cam. For sizing, the safe working load is roughly 317N (60% of the 528N @0.5MPa figure), yielding a vertical lift capacity of about 27kg with a 2:1 margin. This SUD40X75S variant includes a piston magnet for legacy CS1-B/DS1-B switches, whereas the SAUD replacement uses current CMSG/DMSG/EMSG sensors. A plain cylinder drifts on air loss, so use an external rod lock for held loads.
Airtac SUD Series Double Rod Cylinder SUD40X75S Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD40X75S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD40X75S |
| Bore size | Ø40 mm |
| Stroke | 75 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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 SAUD40X75S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAUD40X75S 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 SUD40X75S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 SUD40X75S Is Used
Dual-Tool Transfer
Drives two opposing pickers simultaneously on a conveyor line using both extending rods to keep cycle times balanced.
Anti-Rotation Clamp
Applies equal clamping force in both directions on a machining fixture, preventing piston twist during heavy milling.
Symmetric Push-Pull Gate
Operates a sorting diverter by pushing a gate outward and pulling it back with identical 528N force at 0.5MPa.
Replacing the Airtac SUD Series Double Rod Cylinder SUD40X75S with the SAUD40X75S
To replace the discontinued SUD40X75S, specify the SAUD40X75S drop-in: it matches the 40mm bore, 75mm stroke, equal-both-ways force, 1/4" port, and FA/LB mounting. When sizing both ways, verify the 528N @0.5MPa output fits your load, or step to neighbouring bores (32mm or 50mm) for different force. Choose a double-rod cylinder when you need anti-rotation stability or must drive two tools from one piston. If upgrading, note the -S sensor change from legacy CS1-B/DS1-B to CMSG/DMSG/EMSG. For strokes >=300mm, provide guide support to manage side-load moments.
Replacement checklist
- ✓ Same bore / stroke → SAUD40X75S
- ✓ 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 SUD40X75S FAQ
Yes, the SUD40X75S is discontinued. The exact drop-in replacement is the SAUD40X75S, which matches the 40mm bore, 75mm stroke, 1/4" port, and FA/LB mounting. You will only need to upgrade the switches from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG sensors.
The SUD40X75S provides equal push and pull force of 528N @0.5MPa, 739N @0.7MPa, and 950N @0.9MPa. It uses a 1/4" port with an M12x1.25 rod thread and 21mm adjustable cushions at each end.
Related AirTAC SAU Cylinders
Request a Quote for the SAUD40X75S
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