This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD40X800 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD40X800 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 SUD40X800
The AirTAC Airtac SUD Series Double Rod Cylinder SUD40X800 is a double-acting profile-type standard cylinder with a Ø40mm bore and 800mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD40X800, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke800 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUD40X800
About the Airtac SUD Series Double Rod Cylinder SUD40X800
The AirTAC SUD40X800 is a double-acting double-rod profile cylinder with a 40mm bore and 800mm 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 528N @0.5 MPa, 739N @0.7 MPa, and 950N @0.9 MPa. This discontinued model used a 1/4" port and M12x1.25 rod thread. The drop-in replacement is the SAUD40X800, keeping the same bore, stroke, force, port, and FA/LB mounting.
Because the second rod acts as an anti-rotation guide and can drive a second tool simultaneously, it is highly effective for compact multi-action stations. Based on the 528N @0.5 MPa figure, the safe working load is roughly 317N, translating to a vertical lift capacity of about 27kg with a 2:1 margin. This SKU has no magnet (-S omitted) and cannot take a magnetic switch; the SAUD upgrade uses current 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—so use an external rod lock for held loads.
Airtac SUD Series Double Rod Cylinder SUD40X800 Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD40X800 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD40X800 |
| Bore size | Ø40 mm |
| Stroke | 800 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 SAUD40X800 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 SAUD40X800 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 SUD40X800
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×800 | 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 SUD40X800 Is Used
Dual-End Transfer Pusher
Drives a conveyor sorting flap from one end while the opposing rear rod simultaneously cycles a diverter gate, keeping force equal in both directions.
Anti-Rotation Gripper Slide
Uses the twin rods exiting both ends to prevent rotational twist during vertical clamping on a machining center, ensuring precise part alignment.
Compact Multi-Action Loader
Fits into tight profile-body spaces where a longer ISO cylinder would fail, extending a 800mm stroke to push pallets while pulling a return latch.
Replacing the Airtac SUD Series Double Rod Cylinder SUD40X800 with the SAUD40X800
To replace the discontinued SUD40X800, order the exact drop-in SAUD40X800, which preserves the 40mm bore, 800mm stroke, equal-both-ways force, 1/4" port, and FA/LB mounting. When sizing both ways, verify that 528N @0.5 MPa meets your load, or step up to the 50mm bore if more force is needed; step down to 32mm if less. Choose a double-rod cylinder when you need anti-rotation stability or to drive two tools from one piston. Because this SKU lacks a magnet, you cannot mount sensors; the SAUD upgrade requires CMSG/DMSG/EMSG sensors instead of CS1-B/DS1-B. For this 800mm stroke, add external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same bore / stroke → SAUD40X800
- ✓ 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 SUD40X800 FAQ
Yes, the AirTAC SUD40X800 is discontinued. The exact drop-in replacement is the SAUD40X800, which matches the 40mm bore, 800mm stroke, equal force, 1/4" port, and FA/LB mounting.
Force is equal both ways at 528N @0.5 MPa, 739N @0.7 MPa, and 950N @0.9 MPa. Operating speed is 30-800 mm/s, with adjustable 21mm cushions at each end.
Related AirTAC SAU Cylinders
Request a Quote for the SAUD40X800
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