This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD80X70S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD80X70S 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 SUD80X70S
The AirTAC Airtac SUD Series Double Rod Cylinder SUD80X70S is a double-acting profile-type standard cylinder with a Ø80mm bore and 70mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD80X70S, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke70 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUD80X70S
About the Airtac SUD Series Double Rod Cylinder SUD80X70S
The AirTAC SUD80X70S is a double-acting, double-rod profile cylinder featuring a 80mm bore, 70mm stroke, and a 3/8 inch port. Because a rod exits both ends, the push and pull forces are perfectly equal at 2268N @0.5 MPa, 3175N @0.7 MPa, and 4082N @0.9 MPa. This model is discontinued and the exact drop-in replacement is the SAUD80X70S, retaining the same bore, stroke, force, port, and FA/LB mounting. The SAUD upgrades to current CMSG/DMSG/EMSG sensors, whereas this legacy SUD used CS1-B/DS1-B switches.
The twin-rod design prevents piston rotation and allows the back rod to drive a second tool or sensor cam simultaneously. For sizing, the 2268N @0.5 MPa force yields a safe working load of roughly 1361N, capable of a 116kg vertical lift with a 2:1 margin. Note that a plain cylinder drifts on air loss; the 28mm adjustable cushions only decelerate near stroke end, so use an external rod lock for held loads.
Airtac SUD Series Double Rod Cylinder SUD80X70S Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD80X70S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD80X70S |
| Bore size | Ø80 mm |
| Stroke | 70 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 SAUD80X70S 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 SAUD80X70S 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 SUD80X70S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×70 | 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 SUD80X70S Is Used
Dual-Tool Machining
Drives two opposing tools simultaneously using both rod ends, ensuring perfectly synchronized machining without rotation.
Anti-Rotation Transfer
Transfers parts along a conveyor with high torsional resistance, preventing piston twist during rapid horizontal indexing.
Guided Lifting Station
Lives vertical loads in a packaging station where the twin rods provide inherent guidance, requiring no external linear bearings.
Replacing the Airtac SUD Series Double Rod Cylinder SUD80X70S with the SAUD80X70S
To replace the discontinued SUD80X70S, specify the SAUD80X70S drop-in, which matches the 80mm bore, 70mm stroke, M20x1.5 rod thread, 3/8 inch port, and FA/LB mounting. Size both directions by checking the 2268N @0.5 MPa equal-both-ways force against neighboring bores. Choose a double-rod when you need anti-rotation or dual tool drives. For the -S magnet, swap legacy CS1-B/DS1-B switches for CMSG/DMSG/EMSG sensors. For any stroke >=300, verify side-load limits.
Replacement checklist
- ✓ Same bore / stroke → SAUD80X70S
- ✓ 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 SUD80X70S FAQ
Yes, the SUD80X70S is discontinued. The exact drop-in replacement is the SAUD80X70S, which matches the 80mm bore, 70mm stroke, 3/8 inch port, and FA/LB mounting. You must upgrade the switches from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG sensors.
The 3/8 inch port cylinder delivers equal push and pull forces of 2268N @0.5 MPa, 3175N @0.7 MPa, and 4082N @0.9 MPa. It features a 25mm rod, M20x1.5 thread, and 28mm adjustable cushions at each end.
Related AirTAC SAU Cylinders
Request a Quote for the SAUD80X70S
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