This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUD40X100, 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 SUD40X100
The AirTAC Airtac SUD Series Double Rod Cylinder SUD40X100 is a double-acting profile-type standard cylinder with a Ø40mm bore and 100mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUD40X100, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke100 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUD40X100
- 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 SUD40X100
The AirTAC SUD40X100 is a double-acting, double-rod profile cylinder featuring a 40mm bore and 100mm stroke. Because a rod exits both ends on a single piston, the push and pull force is equal both ways at 528 N @0.5 MPa, 739 N @0.7 MPa, and 950 N @0.9 MPa. This discontinued model uses an extruded aluminium profile barrel with a 1/4" port and M12x1.25 rod thread. The direct replacement is the SAUD40X100, which retains the same bore, stroke, force, port, and FA/LB mounting.
The dual-rod design prevents piston rotation and allows driving two tools simultaneously, while the compact profile body is shorter than standard cylinders of the same bore. Note this SKU has no magnet and cannot take a sensor. A plain cylinder does not hold loads on air loss; the 21mm adjustable cushion only decelerates near stroke end, so use an external rod lock for held loads.
Airtac SUD Series Double Rod Cylinder SUD40X100 Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD40X100 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD40X100 |
| Bore size | Ø40 mm |
| Stroke | 100 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 SAUD40X100 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 SAUD40X100 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 SUD40X100
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 SUD40X100 Is Used
Dual-Tool Driving
Simultaneously actuates two separate grippers or end-effectors from one compact profile body using both extending rods.
Anti-Rotation Transfer
Moves a part across a short 100mm stroke with high torsional resistance, preventing piston rotation without external guides.
Balanced Vertical Press
Applies an equal 528 N clamping force on the downward and upward strokes for symmetrical forming or pressing tasks.
Replacing the Airtac SUD Series Double Rod Cylinder SUD40X100 with the SAUD40X100
To replace the discontinued SUD40X100, specify the SAUD40X100 as a direct retaining the 40mm bore, 100mm stroke, 1/4" port, and FA/LB mounting. When sizing both ways, verify the equal both ways force fits your needs: 528 N @0.5, 739 N @0.7, 950 N @0.9 MPa. If more force is required, step up to the 50mm bore; if less, the 32mm bore is the neighbour. A double rod is right when you need anti-rotation or must drive two tools. This non-magnetic SKU cannot take a sensor, but if upgrading a sensing variant, change legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors. For strokes >=300mm, verify the side-load line to prevent guide wear. Mounting is compatible with the AirTAC SC series only.
Replacement checklist
- ✓ Same bore / stroke → SAUD40X100
- ✓ 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 SUD40X100 FAQ
Yes, the SUD40X100 is discontinued. The direct replacement is the SAUD40X100, which shares the same 40mm bore, 100mm stroke, equal both ways force, 1/4" port, and FA/LB mounting.
Force is equal both ways at 528 N @0.5 MPa, 739 N @0.7 MPa, and 950 N @0.9 MPa. Speed is 30-800 mm/s. The 1/4" port cylinder uses a 16mm rod with M12x1.25 thread.
Related AirTAC SAU Cylinders
Request a Quote for the SAUD40X100
Send us the quantity and destination. We confirm price, stock and lead time on the SAUD40X100 replacement — usually within 7-8 hours.