This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ100X300-30S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ100X300-30S 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 SUJ Adjustable Cylinder SUJ100X300-30S is a double-acting profile-type standard cylinder with a Ø100mm bore and 300mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUJ100X300-30S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ100X300-30S is a double-acting single-rod profile cylinder with a 100mm bore and 300mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 30mm on-site, giving a usable 270-300mm window. The 1/2" port and M20x1.5 rod end drive 3927N push and 3681N pull at 0.5MPa, rising to 7068N push at 0.9MPa. This unit is discontinued; the exact drop-in replacement is the SAUJ100X300-30S, matching the bore, stroke, force, port and FA/LB mounting.
The SAUJ upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches on this -S magnet model. For sizing, a safe working load is roughly 2356N (60% of the 0.5MPa push force), translating to a 200kg 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. At 300mm stroke, use external guides to prevent rod bending.
| Model | Airtac SUJ Adjustable Cylinder SUJ100X300-30S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X300-30S |
| Bore size | Ø100 mm |
| Stroke | 300 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ100X300-30S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAUJ100X300-30S 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). |
|---|---|
| 100 | Bore size in mm. |
| ×300 | 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.
Adjusting the extend stop on-site by up to 30mm allows operators to dial in the exact insertion depth for press-fit pins without re-engineering the fixture.
A 270-300mm extend window lets a single diverter arm accommodate changing package sizes on a packing line by trimming the stroke endpoint in the field.
Set precise mechanical end positions for pallet stops, using the external screw to compensate for wear or varying pallet depths without repositioning the cylinder.
To replace the discontinued SUJ100X300-30S, order the drop-in SAUJ100X300-30S, keeping the 100mm bore, 300mm nominal stroke, 30mm adjust window, 1/2" port and FA/LB mounting. If resizing, the 80mm bore neighbour yields 2513N push at 0.5MPa, while the 100mm bore itself provides 3927N push at 0.5MPa. Choose the 30mm adjust window when you need precise field tuning of the extend endpoint. For the -S magnet option, switch from legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches. Because the stroke is 300mm, ensure external guides to manage side-load and rod-bending forces.
Replacement checklist
Yes, the SUJ100X300-30S is discontinued. The exact drop-in replacement is the SAUJ100X300-30S. It matches the 100mm bore, 300mm stroke, 30mm adjust window, 1/2" port and FA/LB mounting. The SAUJ also offers the SAUF built-in-valve variant the SU line lacked.
The double-acting single-rod cylinder delivers 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, and 7068N push at 0.9MPa, with a theoretical max of 801kgf. The external stop screw provides a 30mm adjust window, making the usable extend stroke 270-300mm. The stop sets end position but is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X300-30S replacement — usually within 7-8 hours.