This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD40X200 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD40X200 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 SUD40X200
The AirTAC Airtac SUD Series Double Rod Cylinder SUD40X200 is a double-acting profile-type standard cylinder with a Ø40mm bore and 200mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD40X200, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke200 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUD40X200
About the Airtac SUD Series Double Rod Cylinder SUD40X200
The AirTAC SUD40X200 is a double-acting, double-rod profile cylinder featuring a 40mm bore and 200mm 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 @0.5 MPa, 739N @0.7 MPa, and 950N @0.9 MPa. This discontinued model has an extruded aluminium profile barrel, a 1/4" port, and M12x1.25 rod threads. The exact drop-in replacement is the SAUD40X200, which retains the same bore, stroke, force, port, and basic FA/LB mounting.
This SKU is supplied without a magnet, meaning it cannot accept a magnetic piston switch. The SAUD upgrade transitions to current CMSG/DMSG/EMSG sensors, whereas this SUD used legacy CS1-B/DS1-B switches. For practical sizing, the computed safe working load is roughly 317N (about 60% of the 528N @0.5 MPa figure), and the vertical lift capacity is about 27kg with a 2:1 margin. A double-rod design prevents rotation and lets the back rod carry a sensor cam or drive a second tool simultaneously.
Airtac SUD Series Double Rod Cylinder SUD40X200 Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD40X200 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD40X200 |
| Bore size | Ø40 mm |
| Stroke | 200 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 SAUD40X200 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 SAUD40X200 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 SUD40X200
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×200 | 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 SUD40X200 Is Used
Dual-Tool Machining
Drives two opposing machining heads from one actuator, utilising the equal both-ways force to ensure consistent cutting pressure on both strokes.
Anti-Rotation Transfer
Transfers parts across a conveyor belt without rotational drift, using the twin-rod profile geometry to maintain precise alignment.
Compact Sorting Gate
Actuates a sorting diverter in a tight warehouse routing station where the shorter profile body saves space compared to standard cylinders.
Replacing the Airtac SUD Series Double Rod Cylinder SUD40X200 with the SAUD40X200
To replace this discontinued SUD40X200, specify the SAUD40X200 as a direct drop-in replacement, keeping the 40mm bore, 200mm stroke, and 1/4" port identical. When sizing both ways, verify if neighbouring bores (32mm or 50mm) offer a better footprint, but ensure the equal both-ways force meets your requirement. Choose a double-rod cylinder when anti-rotation stability is needed or when driving two tools from one actuator. Mounting is limited to Basic, FA, and LB styles (AirTAC SC series compatible only). For stroke lengths of 300mm or greater, carefully calculate side-load moments to prevent guide bushing wear. Because this specific SKU lacks a magnet (-S), it cannot use sensors; the SAUD replacement uses CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. A plain cylinder does not hold loads on air loss—the cushion only decelerates near stroke end—so install an external rod lock or pilot-operated check valve for held loads.
Replacement checklist
- ✓ Same bore / stroke → SAUD40X200
- ✓ 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 SUD40X200 FAQ
Yes, the SUD40X200 is discontinued. The exact drop-in replacement is the SAUD40X200, which matches the 40mm bore, 200mm stroke, 1/4" port, and equal both-ways force.
The double-rod design provides equal force both ways: 528N @0.5 MPa, 739N @0.7 MPa, and 950N @0.9 MPa. It operates at 30-800 mm/s, has a 1/4" port, and features 21mm adjustable air cushions at each end.
Related AirTAC SAU Cylinders
Request a Quote for the SAUD40X200
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