This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD40X700 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD40X700 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 SUD40X700
The AirTAC Airtac SUD Series Double Rod Cylinder SUD40X700 is a double-acting profile-type standard cylinder with a Ø40mm bore and 700mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD40X700, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke700 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUD40X700
About the Airtac SUD Series Double Rod Cylinder SUD40X700
The AirTAC SUD40X700 is a double-acting, double-rod profile cylinder with a 40mm bore and 700mm 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 features a 16mm rod, M12x1.25 rod-end thread, and a 1/4" port. The exact drop-in replacement is the SAUD40X700, which matches the bore, stroke, force, port, and FA/LB mounting.
Because the second rod can drive a second tool or carry a sensor cam, double-rod designs offer excellent anti-rotation stability. For this 528N @0.5 MPa rating, the computed safe working load is about 317N, yielding a vertical lift capacity of roughly 27kg with a 2:1 margin. Note this SKU lacks a magnet and cannot take a switch. On a 700mm stroke, external guides are recommended to prevent rod bending under side loads. A plain cylinder drifts 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 SUD40X700 Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD40X700 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD40X700 |
| Bore size | Ø40 mm |
| Stroke | 700 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 SAUD40X700 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 SAUD40X700 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 SUD40X700
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×700 | 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 SUD40X700 Is Used
Dual-Station Transfer
Simultaneously pushes and pulls parts across two conveyor lanes using both rod ends, keeping cycle times synchronized without adding a second cylinder.
Anti-Rotation Clamping
The twin-rod geometry prevents piston twist during high-repeat clamping on machining fixtures, ensuring the jaw hits the exact same orientation every cycle.
Long-Reach Gripper Actuation
Drives extended 700mm gripper arms on packaging lines where the equal both-ways force ensures secure grip pressure whether opening or closing the jaws.
Replacing the Airtac SUD Series Double Rod Cylinder SUD40X700 with the SAUD40X700
To replace the discontinued SUD40X700, use the SAUD40X700 drop-in upgrade, keeping the 40mm bore, 700mm stroke, 1/4" port, and FA/LB mounting unchanged. Size both ways by checking neighbouring bores to ensure the equal both-ways force fits your load. Choose a double-rod cylinder when you need anti-rotation stability or must drive two tools from one piston. For the 700mm stroke, add external guides to handle side-load and rod-bending forces. Since this non-magnetic SKU cannot take a sensor, if sensing is required on the new SAUD, use current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches. Never rely on the air cushion to hold loads; add an external rod lock.
Replacement checklist
- ✓ Same bore / stroke → SAUD40X700
- ✓ 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 SUD40X700 FAQ
Yes, the SUD40X700 is discontinued. The exact drop-in replacement is the SAUD40X700, which matches the 40mm bore, 700mm stroke, 1/4" port, and FA/LB mounting. The SAUD uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
Because it is a double-rod cylinder, force is equal both ways: 528N @0.5 MPa, 739N @0.7 MPa, and 950N @0.9 MPa. The air port is 1/4". The safe working load is about 317N, allowing a vertical lift of roughly 27kg with a 2:1 margin.
Related AirTAC SAU Cylinders
Request a Quote for the SAUD40X700
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