This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X200-100, 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 SUJ40X200-100 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 SAUJ40X200-100, which matches its bore, stroke, force and mounting.
The AirTAC SUJ40X200-100 is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 100 mm on-site, yielding a usable 100-200 mm extension from the 200 mm nominal maximum. The stop screw strictly sets the end position and is not a load lock.
Because the SUJ line is discontinued, the direct replacement is the SAUJ40X200-100, matching the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrade migrates from legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches. Note this specific SKU lacks a magnet and cannot accept a switch.
| Model | Airtac SUJ Adjustable Cylinder SUJ40X200-100 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X200-100 |
| 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 SAUJ40X200-100 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 SAUJ40X200-100 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.
Allows operators to dial in the extend stroke from 100 to 200 mm on-site for parts of varying widths without swapping the entire cylinder.
Tunes the pusher extension length precisely to the conveyor lane width, accommodating product size changes directly on the floor.
Provides a field-adjustable hard stop for different carton depths, ensuring square alignment before the sealing head descends.
To replace the discontinued SUJ40X200-100, specify the SAUJ40X200-100 direct, retaining the 40 mm bore, 200 mm nominal stroke, 100 mm adjust window, 1/4" port, and FA/LB mounting. Choose the 100 mm adjust window when you need on-site extend stroke tuning between 100 and 200 mm. If stroke tuning is unnecessary, a fixed SAU cylinder is simpler. This non-magnetic SKU cannot take a switch; if sensing is needed, select an SAUJ with an -S suffix and use CMSG/DMSG/EMSG sensors. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding. The stop screw sets end position but does not hold loads on air loss; use an external rod lock for held loads.
Replacement checklist
Yes, the SUJ40X200-100 is discontinued. The direct replacement is the SAUJ40X200-100, which matches the 40 mm bore, 200 mm stroke, 100 mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The external stop screw window is 100 mm, allowing you to trim the 200 mm nominal extend stroke down to 100 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 SAUJ40X200-100 replacement — usually within 7-8 hours.