This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X100LB, 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 SU32~50 Standard Cylinder SU40X100LB
The AirTAC SU32~50 Standard Cylinder SU40X100LB 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 SAU40X100LB, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke100 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X100LB
- 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 SU32~50 Standard Cylinder SU40X100LB
The AirTAC SU40X100LB is a discontinued double-acting profile-type cylinder featuring a 40mm bore, 100mm stroke, and an LB mounting interface. Built with an extruded aluminum barrel, it delivers 628 N push and 528 N pull at 0.5 MPa, making it suitable for mid-range automation tasks.
AirTAC replaced this unit with the SAU40X100LB direct replacement, retaining the exact 1/4" port, M12x1.25 rod thread, and SC-series mounting compatibility. The SAU upgrade introduces current CMSG/DMSG/EMSG sensors and a new SAUF built-in valve option the SU line lacked. Note this SKU lacks a magnet and cannot accept a sensor.
Airtac SU32~50 Standard Cylinder SU40X100LB Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X100LB |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X100LB |
| 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 SAU40X100LB 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 SAU40X100LB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SU32~50 Standard Cylinder SU40X100LB
| 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 SU32~50 Standard Cylinder SU40X100LB Is Used
Package Diverting
Pushes medium-weight cartons off a main conveyor line using 628 N of thrust at 0.5 MPa, with LB mounts securing the body to the conveyor frame.
Clamp Actuation
Drives a pneumatic clamp to hold aluminum extrusions during a milling cut, relying on the 100mm stroke to clear the workpiece for loading.
Replacing the Airtac SU32~50 Standard Cylinder SU40X100LB with the SAU40X100LB
To replace this discontinued SU40X100LB, order the SAU40X100LB direct equivalent, confirming the 40mm bore, 100mm stroke, 1/4" port, and LB mount. Because this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B switches; if sensing is now required, specify an SAU model with a magnet and use CMSG/DMSG/EMSG sensors. Sizing both ways: a 32mm bore offers 402 N push at 0.5 MPa, while a 50mm bore provides 982 N. The 21mm adjustable cushions only decelerate the piston near stroke end; they do not hold the load on air loss. For a locked position, add an external rod lock or pilot-operated check valve. If space allows, the SAUF variant integrates a 4M solenoid valve directly on the body.
Replacement checklist
- ✓ Same bore / stroke → SAU40X100LB
- ✓ 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 SU32~50 Standard Cylinder SU40X100LB FAQ
Yes, the SU40X100LB is discontinued. The direct replacement is the AirTAC SAU40X100LB. It shares the same 40mm bore, 100mm stroke, 628 N output force at 0.5 MPa, 1/4" port, and SC-series LB mounting accessories, fitting the exact same application footprint.
This double-acting cylinder has a 1/4" air port and generates 628 N push / 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, 1130 N push at 0.9 MPa, and a theoretical maximum of 128 kgf at 1.0 MPa. It operates at 30-800 mm/s with a 21mm adjustable air cushion at both ends.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X100LB
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X100LB replacement — usually within 7-8 hours.