This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X200TC, 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.

The AirTAC SU32~50 Standard Cylinder SU40X200TC is a double-acting profile-type standard cylinder with a Ø40mm bore and 200mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X200TC, which matches its bore, stroke, force and mounting.
The AirTAC SU40X200TC is a discontinued double-acting profile-type cylinder with a 40 mm bore and 200 mm stroke. It delivers 628 N push force at 0.5 MPa through a 1/4" port. AirTAC replaced this unit with the SAU40X200TC, a direct replacement retaining the exact body dimensions, M12x1.25 rod thread, 21 mm cushions, and SC-series TC mounting interface.
Because this SKU lacks a magnet, it cannot accept position sensors. The SAU upgrade modernizes sensing with CMSG/DMSG/EMSG switches if you add the -S option, and introduces the SAUF valve-integrated variant. Note that standard air cushions only decelerate the piston; they will not hold a load without live air.
| Model | Airtac SU32~50 Standard Cylinder SU40X200TC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X200TC |
| Bore size | Ø40 mm |
| Stroke | 200 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 SAU40X200TC carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAU40X200TC produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | 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.
Actuates diverting arms on packaging lines using the 628 N push force and 200 mm stroke to redirect cartons efficiently.
Operates sliding safety gates on palletizing stations, utilizing the compact profile and TC mount to fit tight machine frames.
Drives mid-force clamping mechanisms for CNC fixtures, safely holding workpieces with an estimated 377 N working load.
To replace this SU40X200TC, order the SAU40X200TC and verify your 1/4" port threads (PT, G, or NPT) alongside the TC mounting bracket. Since this specific SKU has no magnet (-S), it cannot support legacy CS1-B/DS1-B switches; if you need sensing on the new SAU, select the -S option and migrate to CMSG/DMSG/EMSG sensors. At 200 mm stroke, side-load risks are moderate, but always guide the load to prevent rod bending. If your application needs a higher force margin, stepping up to a 50 mm bore provides 982 N at 0.5 MPa, while dropping to a 32 mm bore yields 402 N. For load holding on air loss, add an external rod lock or pilot-operated check valve, as the cushion only decelerates. The SAUF variant offers a built-in valve if you need self-switching.
Replacement checklist
Yes, the SU40X200TC is discontinued. The direct replacement is the AirTAC SAU40X200TC. It matches the 40 mm bore, 200 mm stroke, 1/4" port, 628 N force at 0.5 MPa, and TC mounting. You also gain the option of the SAUF built-in valve variant.
At 0.5 MPa it pushes 628 N and pulls 528 N; at 0.7 MPa it pushes 879 N, with a theoretical max of 128 kgf at 1.0 MPa. Because this specific SKU lacks a magnet, it cannot take sensors. The SAU replacement supports CMSG/DMSG/EMSG switches if you order the -S version.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X200TC replacement — usually within 7-8 hours.