This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUD40X200S, 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 SUD40X200S
The AirTAC Airtac SUD Series Double Rod Cylinder SUD40X200S is a double-acting profile-type standard cylinder with a Ø40mm bore and 200mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUD40X200S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke200 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUD40X200S
- 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 SUD40X200S
The AirTAC SUD40X200S is a discontinued double-acting double-rod profile cylinder featuring a 40mm bore, 200mm stroke, and a 1/4 inch port. A rod exits both ends on a single piston, meaning both faces use the rod-side area and push/pull force is equal both ways at 528N @0.5 MPa. The direct replacement is the SAUD40X200S, matching the bore, stroke, force, and FA/LB mounting. The SAUD upgrade adds a built-in-valve SAUF variant and uses current CMSG/DMSG/EMSG sensors, whereas this legacy SUD40X200S used CS1-B/DS1-B switches.
This compact extruded aluminium profile barrel is shorter than an ISO 15552 cylinder of the same bore. The dual-rod design prevents piston rotation and allows the back rod to carry a sensor cam while driving two tools. Remember that a plain cylinder drifts on air loss; the 21mm adjustable air cushions only decelerate near stroke end, so use an external rod lock for held loads.
Airtac SUD Series Double Rod Cylinder SUD40X200S Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD40X200S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD40X200S |
| Bore size | Ø40 mm |
| Stroke | 200 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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 SAUD40X200S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAUD40X200S 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 SUD40X200S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×200 | 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 SUD40X200S Is Used
Dual-Tool Synchronized Driving
Drive two separate operations from one stroke using both rod ends, ensuring perfectly synchronized tool timing without adding a second cylinder.
Anti-Rotation Transfer Unit
Prevent piston rotation during travel for precise linear transfer tasks where a single rod might twist and misalign the payload.
Cam-Driven Sensing Station
Mount a sensor cam on the back rod to trigger external switches, keeping the primary working end clear for material handling.
Replacing the Airtac SUD Series Double Rod Cylinder SUD40X200S with the SAUD40X200S
To replace the discontinued SUD40X200S, order the direct replacement SAUD40X200S (inserting an A after the leading S), which preserves the 40mm bore, 200mm stroke, M12x1.25 rod thread, 1/4 inch port, and FA/LB mounting. Size both ways by checking neighbour bores (32mm or 50mm) to ensure the equal-both-ways force fits your application limits. Choose a double-rod cylinder when you need anti-rotation stability or must drive two tools simultaneously. If your SUD40X200S has the -S magnet, note the sensor change from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG on the SAUD. For this 200mm stroke (under 300mm), side-load alignment is less critical, but always verify guide rod parallelism. Mounting compatibility is strictly with the AirTAC SC series.
Replacement checklist
- ✓ Same bore / stroke → SAUD40X200S
- ✓ 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 SUD40X200S FAQ
Yes, the SUD40X200S is discontinued. The direct replacement is the SAUD40X200S, which matches the 40mm bore, 200mm stroke, 1/4 inch port, and FA/LB mounting. The SAUD also offers the SAUF built-in-valve variant and uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
Force is equal both ways: 528N @0.5 MPa, 739N @0.7 MPa, and 950N @0.9 MPa. It operates at 0.15-1.0 MPa, runs at 30-800 mm/s, and has a 1/4 inch port with a 16mm rod. The 21mm cushions only decelerate; use an external rod lock for load holding.
Related AirTAC SAU Cylinders
Request a Quote for the SAUD40X200S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUD40X200S replacement — usually within 7-8 hours.