This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUD50X75, with the same bore, stroke, output force, port and mounting, so it fits the same application. 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 SUD50X75
The AirTAC Airtac SUD Series Double Rod Cylinder SUD50X75 is a double-acting profile-type standard cylinder with a Ø50mm bore and 75mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUD50X75, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke75 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUD50X75
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SUD Series Double Rod Cylinder SUD50X75
The AirTAC SUD50X75 is a double-acting double-rod profile cylinder featuring a 50mm bore, 75mm stroke, and a rod exiting both ends to deliver equal force both ways (825N at 0.5MPa). Because both faces use the rod-side area, push and pull forces are identical. This discontinued model uses an extruded aluminium profile barrel and a 1/4 inch port. The direct replacement is the SAUD50X75, matching the bore, stroke, force, and mounting.
This SKU has no magnet (no -S) and cannot take a magnetic switch. The SAUD upgrade switches to current CMSG/DMSG/EMSG sensors from the legacy CS1-B/DS1-B used here. A double-rod design prevents rotation and lets the back rod drive a second tool. Air cushions only decelerate; use an external rod lock for held loads.
Airtac SUD Series Double Rod Cylinder SUD50X75 Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD50X75 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD50X75 |
| Bore size | Ø50 mm |
| Stroke | 75 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 SAUD50X75 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 SAUD50X75 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUD Series Double Rod Cylinder SUD50X75
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×75 | 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 SUD50X75 Is Used
Dual-Tool Machining
Drives two opposing tools simultaneously from a single 50mm bore body, using the equal both ways force to push and pull identical loads.
Anti-Rotation Transfer
The twin rods prevent mechanical rotation during part transfer on a conveyor, ensuring precise alignment without external guides.
Compact Push-Pull Gate
Fits a shorter profile barrel than standard cylinders to operate a push-pull sorting gate, handling loads up to 495N safely.
Replacing the Airtac SUD Series Double Rod Cylinder SUD50X75 with the SAUD50X75
To replace this discontinued SUD50X75, use the SAUD50X75 direct. The SAU family matches the 50mm bore, 75mm stroke, 825N equal-both-ways force, 1/4 inch port, and FA/LB mounting. When sizing both ways, compare neighbouring bores (40mm or 63mm) to ensure the equal force meets your push and pull requirements. Choose a double-rod cylinder when you need anti-rotation or to drive two tools. Since this SKU lacks a magnet, the SAUD upgrade requires CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B. For stroke lengths >=300mm, verify the side-load line to prevent guide wear. Mounting is compatible with the AirTAC SC series only.
Replacement checklist
- ✓ Same bore / stroke → SAUD50X75
- ✓ 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 SUD50X75 FAQ
Yes, the SUD50X75 is discontinued. The direct replacement is the SAUD50X75, which matches the 50mm bore, 75mm stroke, 1/4 inch port, and FA/LB mounting.
The double-rod design provides equal force both ways: 825N at 0.5MPa, 1154N at 0.7MPa, and 1484N at 0.9MPa. The fixed air port size for the 50mm bore is 1/4 inch.
Request a Quote for the SAUD50X75
Send us the quantity and destination. We confirm price, stock and lead time on the SAUD50X75 replacement — usually within 7-8 hours.