This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the drop-in replacement SAUJ32X85-30S, 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 Airtac SUJ Adjustable Cylinder SUJ32X85-30S is a double-acting profile-type standard cylinder with a Ø32mm bore and 85mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUJ32X85-30S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X85-30S is a double-acting single-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 55-85 mm extension from the 85 mm nominal maximum. It delivers 402 N push and 345 N pull at 0.5 MPa, scaling to 563 N at 0.7 MPa and 724 N at 0.9 MPa. The 32 mm bore features a 1/8" port, a 12 mm rod, and 21 mm adjustable cushions. This SUJ32X85-30S is discontinued; the exact drop-in replacement is the SAUJ32X85-30S, sharing the same body, force, and SC-series FA/LB mounting.
For sizing, a safe working load is roughly 241 N (60% of the 0.5 MPa push), translating to a 20 kg vertical lift with a 2:1 margin. The stop screw sets the end position but is not a load lock; use an external rod lock for held loads. The SAUJ upgrade replaces the legacy CS1-B/DS1-B sensors with current CMSG/DMSG/EMSG switches while retaining the compact profile barrel that is shorter than standard cylinders.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X85-30S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X85-30S |
| Bore size | Ø32 mm |
| Stroke | 85 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 SAUJ32X85-30S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAUJ32X85-30S 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). |
|---|---|
| 32 | Bore size in mm. |
| ×85 | 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.
Trimming the extend stroke by up to 30 mm on-site lets operators dial in the exact flap angle for sorting products without machining custom spacers.
Adjust the end position between 55 and 85 mm to press or form materials to different depths on the same fixture, maximizing profile cylinder versatility.
Fine-tune the stopper height on a conveyor line to accommodate varying package sizes, using the external screw to set the precise extend limit.
To replace the discontinued SUJ32X85-30S, specify the drop-in SAUJ32X85-30S, which matches the 32 mm bore, 85 mm nominal stroke, 30 mm adjust window, 1/8" port, and FA/LB mounting. When sizing both ways, the neighbouring 40 mm bore offers higher force (628 N push at 0.5 MPa), while dropping to a smaller bore reduces force. The 30 mm adjust window is ideal if your end-stop needs on-site tuning between 55 and 85 mm. Because this is an -S model, you must upgrade the position sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches. For strokes of 300 mm or longer, verify side-load limits to prevent excessive rod wear. The external stop sets end position only; it is not a lock, so add an external rod lock for load holding.
Replacement checklist
Yes, the SUJ32X85-30S is discontinued. The exact drop-in replacement is the SAUJ32X85-30S, which matches the 32 mm bore, 85 mm stroke, 30 mm adjust window, 1/8" port, and FA/LB mounting. You only need to upgrade the position sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
This double-acting single-rod cylinder delivers 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, and a theoretical max of 82 kgf at 1.0 MPa. The external stop screw provides a 30 mm adjust window, allowing you to shorten the 85 mm nominal extend stroke down to 55 mm on-site. The stop sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X85-30S replacement — usually within 7-8 hours.