This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ63X450-100S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ63X450-100S 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 SUJ63X450-100S is a double-acting profile-type standard cylinder with a Ø63mm bore and 450mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUJ63X450-100S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ63X450-100S is a double-acting single-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 350-450 mm stroke from the 450 mm nominal maximum. The 63 mm bore delivers 1559 N push and 1402 N pull at 0.5 MPa, rising to 2805 N push at 0.9 MPa, via a 3/8" port and M16x1.5 rod thread. This SUJ unit is discontinued; the exact drop-in replacement is the SAUJ63X450-100S, retaining the same force, port, and FA/LB mounting.
For sizing, a safe working load is roughly 935 N (60% of the 0.5 MPa push), or about 79 kg for a vertical lift with a 2:1 margin. The stop screw sets end position only—it is not a load lock, so use an external rod lock for held loads. The SAUJ upgrade switches sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG. At 450 mm stroke, use external guides to prevent rod bending.
| Model | Airtac SUJ Adjustable Cylinder SUJ63X450-100S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ63X450-100S |
| Bore size | Ø63 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| 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 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ63X450-100S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAUJ63X450-100S 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). |
|---|---|
| 63 | Bore size in mm. |
| ×450 | 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 stroke on-site by up to 100 mm allows a single 450 mm cylinder to drive parts pushers for multiple product lengths without changing the actuator body.
Trimming the extend end position lets operators fine-tune diverter stroke length on the fly to accommodate varying package widths on a packaging line.
The 100 mm external stop window provides the flexibility to set precise stacking heights for different pallet loads while using the full 450 mm stroke as a maximum.
To replace the discontinued SUJ63X450-100S, order the drop-in SAUJ63X450-100S, which matches the 63 mm bore, 450 mm max stroke, 100 mm adjust window, 3/8" port, and FA/LB mounting. When sizing both ways, the 50 mm neighbour yields 982 N push at 0.5 MPa, while the 80 mm neighbour yields 2513 N push, compared to this bore's 1559 N. Choose the -100S adjust window if you need to tune the extend stroke on-site by up to 100 mm. Because this unit has a magnet (-S), swap legacy CS1-B/DS1-B switches for CMSG/DMSG/EMSG sensors on the SAUJ. At 450 mm stroke, add external guides to manage side-load and rod-bending forces.
Replacement checklist
Yes, the SUJ63X450-100S is discontinued. The exact drop-in replacement is the SAUJ63X450-100S, which matches the 63 mm bore, 450 mm stroke, 100 mm adjust window, 3/8" port, and FA/LB mounting. You must upgrade the position sensing from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors.
The 63 mm bore provides 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and 2805 N push at 0.9 MPa, with a theoretical max of 318 kgf at 1.0 MPa. The external stop screw allows you to trim the extend stroke by up to 100 mm on-site, giving a usable extend range of 350-450 mm. The stop sets end position only and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ63X450-100S replacement — usually within 7-8 hours.