This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X640TC, 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 SU32X640TC
The AirTAC SU32~50 Standard Cylinder SU32X640TC is a double-acting profile-type standard cylinder with a Ø32mm bore and 640mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X640TC, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke640 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAU32X640TC
- 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 SU32X640TC
The AirTAC SU32X640TC is a discontinued double-acting profile-type cylinder with a 32mm bore and 640mm stroke. Built with an extruded aluminium barrel, it is more compact than an ISO 15552 unit of the same bore and shares AirTAC SC-series mounting accessories. It delivers a push force of 402 N at 0.5 MPa via a 1/8 inch port. AirTAC replaced this EOL model with the SAU32X640TC, a direct alternative retaining the exact body dimensions, force, port size and TC mounting interface.
Two key upgrades exist in the SAU replacement: it uses current CMSG, DMSG or EMSG sensors instead of the legacy CS1-B/DS1-B switches, and it offers a SAUF variant with a built-in 4M solenoid valve that the SU line never had. Note that this specific SKU lacks a magnet and cannot support sensing, and because of the 640mm stroke, external guides are recommended to prevent rod bending under side loads.
Airtac SU32~50 Standard Cylinder SU32X640TC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU32X640TC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X640TC |
| Bore size | Ø32 mm |
| Stroke | 640 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 1000 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU32X640TC carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAU32X640TC 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 SU32X640TC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×640 | 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 SU32X640TC Is Used
Linear Part Ejection
Ejects machined components from a fixture over a 640mm distance, relying on external guides to prevent rod bending during the extended cycle.
Replacing the Airtac SU32~50 Standard Cylinder SU32X640TC with the SAU32X640TC
To replace the discontinued SU32X640TC, order the SAU32X640TC, ensuring you keep the 32mm bore, 640mm stroke, 1/8 inch port, M10x1.25 rod thread and TC mounting. When sizing both ways, dropping to a smaller bore loses too much force for this application, while a larger 40mm bore provides 628 N push at 0.5 MPa but requires a 1/4 inch port and different mounting geometry. Because this SKU has no magnet (-S), it cannot accept any sensor; if sensing is needed on the new unit, you must specify an SAU magnet and use CMSG/DMSG/EMSG switches rather than the old CS1-B/DS1-B family. The 640mm stroke necessitates an external guide to manage side loads and prevent rod bending. Finally, a plain cylinder drifts on air loss—the cushion only decelerates—so fit an external rod lock or pilot-operated check valve for load holding.
Replacement checklist
- ✓ Same bore / stroke → SAU32X640TC
- ✓ 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 SU32X640TC FAQ
Yes, the SU32X640TC is discontinued. The direct replacement is the AirTAC SAU32X640TC. It matches the 32mm bore, 640mm stroke, 402N force, 1/8 inch port and TC mounting interface, so it fits the same application without mechanical changes.
The double-acting cylinder provides a push of 402 N and pull of 345 N at 0.5 MPa, 563 N at 0.7 MPa, and a theoretical max of 82 kgf at 1.0 MPa. This specific SKU lacks a magnet and cannot accept a sensor. If sensing is required on the SAU replacement, you must use the current CMSG, DMSG or EMSG switches instead of the legacy CS1-B or DS1-B.
Related AirTAC SAU Cylinders
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