This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD80X250 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD80X250 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 SUD80X250
The AirTAC Airtac SUD Series Double Rod Cylinder SUD80X250 is a double-acting profile-type standard cylinder with a Ø80mm bore and 250mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD80X250, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke250 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUD80X250
About the Airtac SUD Series Double Rod Cylinder SUD80X250
The AirTAC SUD80X250 is a double-acting, double-rod profile cylinder featuring an extruded aluminium barrel that is more compact than standard alternatives. Because a rod exits both ends on a single piston, the push and pull force is equal both ways at 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. This SUD model is discontinued and is replaced by the drop-in SAUD80X250, which retains the exact 80mm bore, 250mm stroke, 3/8" port, and FA/LB mounting compatibility.
The dual-rod design prevents piston rotation and allows the rear rod to drive a second tool simultaneously. This specific SKU lacks a magnet (-S) and cannot accept magnetic switches. Based on the 0.5 MPa rating, the computed safe working load is approximately 1361 N (60% of force), and it can vertically lift about 116 kg with a 2:1 margin. Note that the air cushion only decelerates the piston near stroke end; it does not hold loads on air loss, requiring an external rod lock for held loads.
Airtac SUD Series Double Rod Cylinder SUD80X250 Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD80X250 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD80X250 |
| Bore size | Ø80 mm |
| Stroke | 250 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M20×1.5 |
| 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, 28 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUD80X250 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAUD80X250 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 SUD80X250
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×250 | 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 SUD80X250 Is Used
Dual-Tool Driving
Simultaneously drives two separate mechanisms from opposite rod ends, ensuring perfectly synchronized motion without adding a second cylinder.
Anti-Rotation Lifting
Lifts guided loads up to 116 kg vertically with a 2:1 margin at 0.5 MPa, using the dual rods to prevent piston twist and binding.
Compact Transfer
Pushes and pulls workpieces across a conveyor with equal 2268 N force in both directions, fitting into tight machinery profiles.
Replacing the Airtac SUD Series Double Rod Cylinder SUD80X250 with the SAUD80X250
To replace the discontinued SUD80X250, use the drop-in SAUD80X250, which matches the 80mm bore, 250mm stroke, M20x1.5 rod thread, 3/8" port, and FA/LB mounts. Size both ways by checking neighbouring bores (63mm or 100mm) while ensuring the equal both-ways force (2268 N @0.5 MPa) meets your needs. A double rod is right when you need anti-rotation or dual-tool driving. Because this SKU has no magnet, it cannot take sensors, but if upgrading from a sensed -S model, note the SAUD uses current CMSG/DMSG/EMSG sensors instead of legacy CS1-B/DS1-B. For this 250mm stroke (which is >=300mm is false here, but generally for longer strokes), ensure the side-load line remains within the bearing capacity.
Replacement checklist
- ✓ Same bore / stroke → SAUD80X250
- ✓ 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 SUD80X250 FAQ
Yes, the SUD80X250 is discontinued. The exact drop-in replacement is the AirTAC SAUD80X250. It offers the same 80mm bore, 250mm stroke, 3/8" port, and FA/LB mounting, but uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The SUD80X250 provides equal force both ways: 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. It operates at speeds of 30-800 mm/s, features a 25mm rod, M20x1.5 rod thread, and a 28mm adjustable air cushion at each end.
Related AirTAC SAU Cylinders
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