This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ63X100-30SN, 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 SUJ Adjustable Cylinder SUJ63X100-30SN is a double-acting profile-type standard cylinder with a Ø63mm bore and 100mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ63X100-30SN, which matches its bore, stroke, force and mounting.
The AirTAC SUJ63X100-30SN is a double-acting double-rod profile cylinder with a 63mm bore and 3/8" port, engineered for on-site stroke adjustment. An external stop screw lets you trim the extend stroke by up to 30mm, giving a usable 70-100mm range from the 100mm nominal maximum. The extruded aluminum profile barrel is notably shorter than an ISO 15552 cylinder of the same bore, and the adjustable cushion spans 21mm at each end.
This SUJ unit is discontinued; the direct replacement is the SAUJ63X100-30SN, matching the bore, stroke, 318kgf force, and FA/LB mounting. The SAUJ upgrade adopts current CMSG/DMSG/EMSG sensors, replacing the legacy CS1-B/DS1-B switches used here. Remember the stop screw sets end position only—it is not a load lock; use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ63X100-30SN |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ63X100-30SN |
| Bore size | Ø63 mm |
| Stroke | 100 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 SAUJ63X100-30SN 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 SAUJ63X100-30SN 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). |
|---|---|
| 63 | Bore size in mm. |
| ×100 | 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.
Bending or pressing operations where the extend stroke must be trimmed on-site by up to 30mm to accommodate different material thicknesses without reprogramming the machine cycle.
Routing packages of varying sizes on a line by fine-tuning the 70-100mm extend position in the field to alter the gate angle precisely.
Acting as a physical end stop for incoming pallets, allowing operators to dial in the exact 70-100mm protrusion needed for different load depths.
To replace the discontinued SUJ63X100-30SN, specify the SAUJ63X100-30SN direct: it preserves the 63mm bore, 100mm stroke, 30mm adjust window, 318kgf max force, 3/8" port, and FA/LB mounting. Choose the 30mm adjust window when you need precise field tuning of the extend stroke from 70 to 100mm without machining. Because this unit has the -S magnet, upgrade your position sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches. For strokes of 300mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
Yes, the SUJ63X100-30SN is discontinued. The direct replacement is the SAUJ63X100-30SN, which matches the 63mm bore, 100mm nominal stroke, 30mm adjust window, 3/8" port, and FA/LB mounting. You must upgrade the position sensors from the legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG series.
The 63mm bore double-acting double-rod cylinder pushes 1559N and pulls 1402N at 0.5MPa, pushes 2182N at 0.7MPa, and 2805N at 0.9MPa, with a 318kgf theoretical max at 1.0MPa. The 3/8" port and M16x1.5 rod end are fixed by the bore. The external stop screw trims the extend stroke by up to 30mm on-site, yielding a 70-100mm usable range. 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 SAUJ63X100-30SN replacement — usually within 7-8 hours.