This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD63X40S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD63X40S 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 SUD63X40S
The AirTAC Airtac SUD Series Double Rod Cylinder SUD63X40S is a double-acting profile-type standard cylinder with a Ø63mm bore and 40mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD63X40S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke40 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUD63X40S
About the Airtac SUD Series Double Rod Cylinder SUD63X40S
The AirTAC SUD63X40S is a double-acting, double-rod profile cylinder featuring a 63mm bore and 40mm stroke. A rod exits both ends on a single piston, meaning push and pull force are equal at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. The extruded aluminium profile barrel is notably shorter than an ISO 15552 cylinder of the same bore. This discontinued model features a built-in piston magnet for legacy CS1-B/DS1-B switches, a 20mm rod, M16x1.5 rod thread, and a 3/8 inch port.
The exact drop-in replacement is the SAUD63X40S, which preserves the bore, stroke, equal-both-ways force, port, and FA/LB mounting. The SAUD upgrades to current CMSG/DMSG/EMSG sensors and offers the SAUF built-in-valve variant. For sizing, the computed safe working load is roughly 841 N (60% of the 0.5 MPa force), translating to a vertical lift capacity of about 71 kg with a 2:1 margin. The back rod provides an anti-rotation benefit and can drive two tools simultaneously. Remember that air cushions only decelerate near stroke end; use an external rod lock for load holding on air loss.
Airtac SUD Series Double Rod Cylinder SUD63X40S Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD63X40S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD63X40S |
| Bore size | Ø63 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M16×1.5 |
| 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, 21 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUD63X40S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAUD63X40S 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 SUD63X40S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×40 | 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 SUD63X40S Is Used
Dual-Tool Driving
Simultaneously operates two opposing grippers or end-effectors using the equal push and pull force from both rod ends.
Anti-Rotation Handling
Transfers parts across a conveyor with high torsional stability, using the second rod to prevent piston rotation without external guides.
Compact Transfer Arms
Fits into tight machinery profiles where a standard cylinder is too long, utilizing the shorter extruded profile barrel for transfer operations.
Replacing the Airtac SUD Series Double Rod Cylinder SUD63X40S with the SAUD63X40S
To replace the discontinued SUD63X40S, specify the SAUD63X40S as a direct drop-in replacement, keeping the 63mm bore, 40mm stroke, 3/8 inch port, and FA/LB mounting identical. When sizing both ways, verify your force requirements against the equal both ways output of 1402 N @0.5 MPa or 1962 N @0.7 MPa, and check neighbouring bores (50mm or 80mm) if your safe working load of 841 N is insufficient. Choose a double-rod design when you need anti-rotation stability, a back rod to carry a sensor cam, or to drive two tools at once. For the -S magnet option, note that the SAUD uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. For this 40mm stroke, side-load is minimal, but for any stroke >=300, ensure adequate guide support to prevent binding.
Replacement checklist
- ✓ Same bore / stroke → SAUD63X40S
- ✓ 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 SUD63X40S FAQ
Yes, the SUD63X40S is discontinued. The exact drop-in replacement is the SAUD63X40S, which matches the 63mm bore, 40mm stroke, 3/8 inch port, and FA/LB mounting, while upgrading the sensors to CMSG/DMSG/EMSG.
Because it is a double-rod cylinder, force is equal both ways: 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. The air port is 3/8 inch, the rod is 20mm with an M16x1.5 thread, and it includes a 21mm adjustable cushion at each end.
Related AirTAC SAU Cylinders
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