This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X200LB, 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 SU50X200LB
The AirTAC SU32~50 Standard Cylinder SU50X200LB is a double-acting profile-type standard cylinder with a Ø50mm bore and 200mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X200LB, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke200 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X200LB
- 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 SU50X200LB
The AirTAC SU50X200LB is a discontinued double-acting profile-type cylinder with a 50mm bore and 200mm stroke. Delivering 982 N of push force at 0.5 MPa, it uses an extruded aluminum barrel that is more compact than a same-bore ISO 15552 unit. AirTAC replaced this end-of-life unit with the SAU50X200LB, a direct alternative retaining the exact 1/4" port, M16x1.5 rod thread, and SC-series LB mounting interface.
When upgrading, the SAU body matches the original output force and 200mm travel exactly. Note this specific SU SKU lacks a magnet, so it cannot accept a sensor; furthermore, the SAU family upgrades sensing to CMSG/DMSG/EMSG switches and introduces a SAUF variant with a built-in 4M solenoid valve the SU line never offered.
Airtac SU32~50 Standard Cylinder SU50X200LB Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X200LB |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X200LB |
| Bore size | Ø50 mm |
| Stroke | 200 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 SAU50X200LB 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 SAU50X200LB 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 SU50X200LB
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | 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 SU32~50 Standard Cylinder SU50X200LB Is Used
Package Diverting
Pushes medium-weight cartons off a sorting line using 982 N of thrust at 0.5 MPa, with the LB mount providing a stable base for the 200mm travel.
Clamping Fixtures
Secures workpieces during machining operations, taking advantage of the 825 N pull force and adjustable 21mm cushions to soften end-of-stroke impacts.
Pallet Positioning
Indexes empty pallets into a wrapping station, where the compact extruded profile saves space and the 1/4" port delivers rapid 30-800 mm/s cycling.
Replacing the Airtac SU32~50 Standard Cylinder SU50X200LB with the SAU50X200LB
To replace the SU50X200LB, order the SAU50X200LB direct equivalent, verifying the 50mm bore, 200mm stroke, 1/4" port (default PT thread), and the SC-series LB foot mounting accessory. Because this legacy SKU has no -S magnet, it cannot support a piston switch; if sensing is required on the new unit, you must specify an SAU magnet and adopt the current CMSG/DMSG/EMSG sensor family instead of the older CS1-B/DS1-B. For loads needing 1374 N at 0.7 MPa, the 50mm bore is ideal, but if you need less force, consider dropping to a 40mm bore (628 N push at 0.5 MPa). At 200mm stroke, guide the load to prevent rod bending and side-load wear. Remember that a standard cylinder drifts on air loss—the cushions only decelerate near stroke end—so install an external rod lock or pilot-operated check valve for secure load holding. The SAUF valve-integrated option can also simplify actuation if you are redesigning the circuit.
Replacement checklist
- ✓ Same bore / stroke → SAU50X200LB
- ✓ 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 SU50X200LB FAQ
Yes, the SU50X200LB is discontinued. The direct replacement is the AirTAC SAU50X200LB. It matches the original 50mm bore, 200mm stroke, 982 N push force at 0.5 MPa, 1/4" port, and SC-series LB mounting, so no mechanical changes are needed.
This 50mm bore cylinder delivers 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical maximum of 200 kgf at 1.0 MPa. Because this specific SKU lacks a magnet, it cannot accept a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches if sensing is added.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X200LB
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X200LB replacement — usually within 7-8 hours.