This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD50X50 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD50X50 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 SUD50X50
The AirTAC Airtac SUD Series Double Rod Cylinder SUD50X50 is a double-acting profile-type standard cylinder with a Ø50mm bore and 50mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD50X50, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke50 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUD50X50
About the Airtac SUD Series Double Rod Cylinder SUD50X50
The AirTAC SUD50X50 is a double-acting, double-rod profile cylinder featuring an extruded aluminum barrel that is more compact than standard alternatives of the same bore. Because a rod exits both ends on one piston, both faces use the rod-side area, meaning push and pull force are equal both ways at 825 N @0.5 MPa, 1154 N @0.7 MPa, and 1484 N @0.9 MPa. This SUD model is discontinued and the exact drop-in replacement is the SAUD50X50, which retains the 50 mm bore, 50 mm stroke, 1/4" port, and FA/LB mounting compatibility with the AirTAC SC series.
The dual-rod design provides inherent anti-rotation properties and allows the rear rod to drive a secondary tool or carry a sensor cam without extra space. For buyers sizing this cylinder, the computed safe working load is roughly 495 N (about 60% of the 825 N @0.5 MPa figure), and it can vertically lift approximately 42 kg with a 2:1 safety margin. Note that this specific SKU lacks a magnet and cannot accept a magnetic switch. Also, the cylinder does not hold loads on air loss; the adjustable 21 mm cushions only decelerate near stroke end, so an external rod lock is required for held loads.
Airtac SUD Series Double Rod Cylinder SUD50X50 Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD50X50 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD50X50 |
| Bore size | Ø50 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| 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 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUD50X50 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAUD50X50 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 SUD50X50
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×50 | 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 SUD50X50 Is Used
Dual-Tool Transfer
Drives two opposing pick-and-place grippers simultaneously using both rod ends, ensuring perfectly synchronized tool movement without adding external linkages.
Anti-Rotation Indexing
Handles components requiring strict angular stability, using the twin rods to prevent piston twist during extension and retraction in precision assembly fixtures.
Symmetrical Diverting
Pushes items from a central profile body to two separate conveyor lanes, utilizing the equal both-ways force to maintain consistent actuation speed in both directions.
Replacing the Airtac SUD Series Double Rod Cylinder SUD50X50 with the SAUD50X50
To replace the discontinued SUD50X50, select the SAUD50X50, which offers a true drop-in solution with identical bore, stroke, equal-both-ways force, and 1/4" port. When sizing both ways, verify that your load does not exceed the safe working load of 495 N, and consider neighboring bores (like the 40 mm or 63 mm) if you need to adjust for higher or lower force requirements. A double-rod configuration is the right choice when you need anti-rotation stability or must drive two tools simultaneously. Mounting is limited to Basic, FA, and LB styles. Because this SKU has no magnet, there is no sensor to change, but if you upgrade to an -S SAUD model, note that legacy CS1-B/DS1-B sensors are replaced by current CMSG/DMSG/EMSG sensors. For strokes of 300 mm or longer, carefully manage side-load alignment to prevent premature seal wear.
Replacement checklist
- ✓ Same bore / stroke → SAUD50X50
- ✓ 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 SUD50X50 FAQ
Yes, the SUD50X50 is discontinued. The exact drop-in replacement is the SAUD50X50, which matches the 50 mm bore, 50 mm stroke, 1/4" port, and FA/LB mounting.
The SUD50X50 provides equal force both ways: 825 N @0.5 MPa, 1154 N @0.7 MPa, and 1484 N @0.9 MPa. It uses a 1/4" air port, has a 20 mm rod, and operates at speeds of 30-800 mm/s.
Request a Quote for the SAUD50X50
Send us the quantity and destination. We confirm price, stock and lead time on the SAUD50X50 replacement — usually within 7-8 hours.