This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAU50X670SH — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAU50X670SH in place of this model. 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.

The AirTAC Airtac SU32~50 Standard Cylinder SU50X670SH is a double-acting profile-type standard cylinder with a Ø50mm bore and 670mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAU50X670SH, which matches its bore, stroke, force and mounting.
The AirTAC SU50X670SH is a discontinued double-acting profile cylinder with a 50mm bore and 670mm stroke. Built for high-temperature duty with a Viton H seal (0-150 C), it delivers 982 N push force at 0.5 MPa through a 1/4" port. AirTAC replaced this EOL unit with the SAU50X670SH drop-in replacement, matching the exact body, stroke, force, and SC-series mounting.
When upgrading, the SAU body reuses current CMSG/DMSG/EMSG sensors instead of this model's legacy CS1-B/DS1-B switches, and offers a new SAUF valve-integrated variant. For sizing, a safe working load is roughly 589 N (60% of the 0.5 MPa push), equating to a 50 kg vertical lift with a 2:1 safety margin. Note that on this 670mm stroke, external guides are recommended to prevent rod bending under side loads.
| Model | Airtac SU32~50 Standard Cylinder SU50X670SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X670SH |
| Bore size | Ø50 mm |
| Stroke | 670 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 SAU50X670SH carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X670SH produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | 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.
Actuating routing gates on hot material conveyors where the Viton H seal survives 150 C ambient heat and the 982 N thrust easily overcomes product friction.
Opening and closing industrial curing oven doors, utilizing the 670mm stroke for full clearance while maintaining reliable sealing under thermal stress.
Lifting light pallets vertically; the 50kg safe lift capacity handles standard bins, but external guides are mandatory to stabilize the 670mm extended rod.
To replace this SU50X670SH, order the SAU50X670SH drop-in equivalent, confirming the 50mm bore, 670mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting. Because of the 670mm stroke, add external guides to prevent rod bending and side-load damage. The -H high-temp Viton seal carries over directly, but the -S magnet changes sensor families: legacy CS1-B/DS1-B switches will not fit the SAU, requiring current CMSG/DMSG/EMSG sensors. For sizing alternatives, a 40mm bore yields 628 N push at 0.5 MPa, while a 63mm bore provides 1559 N. This plain cylinder does not hold load on air loss; use an external rod lock or pilot-operated check valve for suspended loads. The SAUF variant adds a built-in 4M solenoid valve if self-switching is desired.
Replacement checklist
Yes, the SU50X670SH is discontinued and end-of-life. The exact drop-in replacement is the AirTAC SAU50X670SH. It matches the 50mm bore, 670mm stroke, 1/4" port, output force, and SC-series mounting accessories. You simply order the SAU equivalent.
At 0.5 MPa it provides 982 N push and 825 N pull force, increasing to 1374 N push at 0.7 MPa, with a theoretical max of 200 kgf at 1.0 MPa. The -S magnet on this legacy SU works with CS1-B/DS1-B switches, but the SAU replacement requires current CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X670SH replacement — usually within 7-8 hours.