This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD50X150 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD50X150 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 SUD50X150
The AirTAC Airtac SUD Series Double Rod Cylinder SUD50X150 is a double-acting profile-type standard cylinder with a Ø50mm bore and 150mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD50X150, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUD50X150
About the Airtac SUD Series Double Rod Cylinder SUD50X150
The AirTAC SUD50X150 is a double-acting, double-rod profile cylinder featuring a 50mm bore and 150mm stroke. A piston rod exits both ends, meaning push and pull forces are equal both ways at 825N @0.5 MPa, 1154N @0.7 MPa, and 1484N @0.9 MPa. The extruded aluminium profile barrel is more compact than standard alternatives, and this specific bore uses a 1/4 inch port with an M16x1.5 rod thread. This discontinued model is replaced by the drop-in SAUD50X150.
Because the rod exits both ends, the back rod can drive a second tool or carry a sensor cam while resisting rotation. For this non-magnetic SKU, sensing is impossible, and the SAUD upgrade switches to current CMSG/DMSG/EMSG sensors from the legacy CS1-B/DS1-B. Based on the 825N @0.5 MPa figure, the safe working load is about 495N, yielding a vertical lift capacity of roughly 42kg with a 2:1 margin. Note that air cushions only decelerate the piston near stroke end; an external rod lock is required to hold loads on air loss.
Airtac SUD Series Double Rod Cylinder SUD50X150 Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD50X150 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD50X150 |
| Bore size | Ø50 mm |
| Stroke | 150 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 SAUD50X150 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 SAUD50X150 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 SUD50X150
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×150 | 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 SUD50X150 Is Used
Dual-Tool Machining Station
Drives two opposing tools simultaneously from a single piston, utilising the equal both ways force to machine parts on both ends without stroke variance.
Anti-Rotation Transfer Gate
The double-rod geometry prevents mechanical rotation during part transfer across a conveyor, ensuring precise alignment without external guides.
Compact Sorting Diverter
Uses the shorter extruded aluminium profile barrel to fit tight sorting lanes while pushing and pulling packages with identical 825N force.
Replacing the Airtac SUD Series Double Rod Cylinder SUD50X150 with the SAUD50X150
To replace the discontinued SUD50X150, use the drop-in SAUD50X150, which retains the exact 50mm bore, 150mm stroke, 1/4 inch port, and FA/LB mounting. When sizing both ways, verify the 825N @0.5 MPa equal force fits your load, or step to neighbouring bores like 63mm for higher force. A double rod is right when you need anti-rotation or a back rod for a sensor cam. Since this non-magnetic SKU lacks a piston magnet, it cannot take a switch, but the SAUD -S variant supports CMSG/DMSG/EMSG sensors. For stroke lengths >=300mm, ensure the side-load line is supported to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUD50X150
- ✓ 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 SUD50X150 FAQ
Yes, the SUD50X150 is discontinued. The exact drop-in replacement is the SAUD50X150, which matches the 50mm bore, 150mm stroke, 1/4 inch port, and FA/LB mounting.
Because it is a double-rod cylinder, force is equal both ways: 825N @0.5 MPa, 1154N @0.7 MPa, and 1484N @0.9 MPa. The 50mm bore dictates a 1/4 inch port with an M16x1.5 rod thread.
Related AirTAC SAU Cylinders
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