This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X680, 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 SU50X680
The AirTAC Airtac SU32~50 Standard Cylinder SU50X680 is a double-acting profile-type standard cylinder with a Ø50mm bore and 680mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X680, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke680 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X680
- 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 SU50X680
The AirTAC SU50X680 is a discontinued double-acting profile-type cylinder with a 50mm bore and 680mm stroke. It delivers 982N push force at 0.5MPa via a 1/4-inch port. AirTAC replaced this end-of-line unit with the SAU50X680, a direct alternative retaining the exact bore, stroke, output force, and SC-series mounting footprint.
Because this 680mm stroke lacks a magnet (-S), it cannot accept a sensor. The SAU upgrade switches to CMSG/DMSG/EMSG switches for its -S SKUs, and adds a SAUF built-in-valve option the SU line never had. The 21mm adjustable cushions decelerate the rod but do not lock it.
Airtac SU32~50 Standard Cylinder SU50X680 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X680 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X680 |
| Bore size | Ø50 mm |
| Stroke | 680 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 SAU50X680 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 SAU50X680 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 SU50X680
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×680 | 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 SU50X680 Is Used
Long-Reach Diverting
Pushes packages across a 680mm conveyor lane using the 982N thrust at 0.5MPa, guided externally to prevent rod bending.
Extended Stroke Clamping
Secures oversized workpieces at full extension, relying on the 21mm adjustable air cushions to decelerate the 680mm travel.
Replacing the Airtac SU32~50 Standard Cylinder SU50X680 with the SAU50X680
To replace this discontinued SU50X680, order the SAU50X680 direct equivalent, confirming the 50mm bore, 680mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting. If you need position sensing, note this specific no-magnet SKU cannot take a switch; an SAU -S version uses the newer CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. Sizing both ways: dropping to a 40mm bore yields 628N push at 0.5MPa, while stepping up to a 63mm bore provides 1559N. For the 680mm stroke, use external guides to prevent rod bending under side loads. The cylinder will not hold a load without live air; add an external rod lock or pilot-operated check valve for fail-safe holding. If you need self-switching, the SAUF variant integrates a 4M solenoid valve.
Replacement checklist
- ✓ Same bore / stroke → SAU50X680
- ✓ 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 SU50X680 FAQ
Yes, the SU50X680 is discontinued. The direct replacement is the AirTAC SAU50X680. It matches the 50mm bore, 680mm stroke, 982N force, 1/4" port, and SC-series mounting accessories, so it fits the same application directly.
At 0.5MPa it pushes 982N and pulls 825N; at 0.7MPa it pushes 1374N, with a theoretical max of 200kgf at 1.0MPa. This specific SKU lacks a magnet and cannot take a sensor. If you order a magnet-equipped SAU replacement (-S), it uses CMSG/DMSG/EMSG switches rather than the older CS1-B/DS1-B.
Request a Quote for the SAU50X680
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X680 replacement — usually within 7-8 hours.