This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X670STC, 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 SU40X670STC
The AirTAC SU32~50 Standard Cylinder SU40X670STC is a double-acting profile-type standard cylinder with a Ø40mm bore and 670mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X670STC, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke670 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X670STC
- 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 SU40X670STC
The AirTAC SU40X670STC is a discontinued double-acting profile-type cylinder with a 40mm bore and 670mm stroke. Delivering 628N push force at 0.5MPa, its direct replacement is the SAU40X670STC, preserving the 1/4" port, M12x1.25 rod thread, and TC mounting interface.
This compact extruded-aluminium body is shorter than an equivalent ISO 15552 unit. The SAU upgrade switches the legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors, and introduces the SAUF built-in-valve option.
Airtac SU32~50 Standard Cylinder SU40X670STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X670STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X670STC |
| Bore size | Ø40 mm |
| Stroke | 670 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 SAU40X670STC 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 SAU40X670STC 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 SU40X670STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×670 | 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 SU40X670STC Is Used
Long-Reach Diversion
Pushes packages across a 670mm conveyor lane using the 628N push force at 0.5MPa, guided externally to prevent rod bending.
Compact Ejection Station
Uses the shorter extruded profile to fit tight machine frames while delivering the full 879N thrust at 0.7MPa to eject parts.
Replacing the Airtac SU32~50 Standard Cylinder SU40X670STC with the SAU40X670STC
To replace this discontinued SU40X670STC, order the SAU40X670STC keeping the 40mm bore, 670mm stroke, 1/4" port, and TC mount. Because the -S magnet is present, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. Sizing both ways: a 32mm bore offers 402N [email protected], while a 50mm bore yields 982N. A plain cylinder drifts without live air—the cushion only decelerates—so use an external rod lock for holding. For the 670mm stroke, add an external guide to prevent rod bending under side loads. The SAUF valve-integrated variant is also available if needed.
Replacement checklist
- ✓ Same bore / stroke → SAU40X670STC
- ✓ 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 SU40X670STC FAQ
Yes, the SU40X670STC is discontinued. The direct replacement is the AirTAC SAU40X670STC. It matches the 40mm bore, 670mm stroke, 1/4" port, force, and TC mounting, though the -S magnet now requires CMSG/DMSG/EMSG sensors instead of the older CS1-B/DS1-B.
The 40mm bore features a 1/4" port. At 0.5MPa it provides 628N push and 528N pull; at 0.7MPa it yields 879N push, 1130N at 0.9MPa, and a theoretical max of 128kgf at 1.0MPa. Operating speed is 30-800mm/s.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X670STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X670STC replacement — usually within 7-8 hours.