This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X250SLB, 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.
Airtac SU63-100 Standard Cylinder SU63X250SLB
The AirTAC SU63-100 Standard Cylinder SU63X250SLB is a double-acting profile-type standard cylinder with a Ø63mm bore and 250mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X250SLB, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke250 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X250SLB
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SU63-100 Standard Cylinder SU63X250SLB
The AirTAC SU63X250SLB is a discontinued double-acting profile-type cylinder with a 63mm bore and 250mm stroke. It delivers 1559N push force at 0.5MPa via a 3/8" port. AirTAC replaced this unit with the SAU63X250SLB, a direct replacement retaining the exact bore, stroke, force, port size, and SC-series LB mounting interface.
The SAU upgrade modernizes the sensor groove: your old CS1-B/DS1-B switches are replaced by current CMSG/DMSG/EMSG sensors. The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore.
Airtac SU63-100 Standard Cylinder SU63X250SLB Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X250SLB |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X250SLB |
| Bore size | Ø63 mm |
| Stroke | 250 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 SAU63X250SLB carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAU63X250SLB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SU63-100 Standard Cylinder SU63X250SLB
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×250 | 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.
Where the Airtac SU63-100 Standard Cylinder SU63X250SLB Is Used
Mid-Tonnage Clamping
Secures heavy workpieces during CNC machining using its 1559N push force, with the LB mount providing a rigid base against cutting vibrations.
Package Diverting
Actuates routing gates on high-speed sorting lines, where the 250mm stroke provides ample travel to redirect heavy totes.
Replacing the Airtac SU63-100 Standard Cylinder SU63X250SLB with the SAU63X250SLB
To replace this SU63X250SLB, order the SAU63X250SLB. Verify your 3/8" port, M16x1.5 rod thread, and LB mounting bracket (an SC-series accessory) carry over directly. Because this SKU includes a magnet (-S), note the sensor family change from legacy CS1-B/DS1-B to CMSG/DMSG/EMSG on the SAU. If sizing alternatives, a 50mm bore yields 982N push at 0.5MPa, while an 80mm bore yields 2513N. At 250mm stroke, ensure your mechanism guides the load to prevent rod bending and side-load wear. A plain cylinder drifts on air loss—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for held loads. The SAU line also introduces the SAUF variant with a built-in 4M solenoid valve, which the SU series lacked.
Replacement checklist
- ✓ Same bore / stroke → SAU63X250SLB
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SU63-100 Standard Cylinder SU63X250SLB FAQ
Yes, the AirTAC SU63X250SLB is discontinued. The direct replacement is the SAU63X250SLB. It matches the 63mm bore, 250mm stroke, 1559N output force, 3/8" port, and SC-series LB mounting accessories, so it fits the same application without mechanical changes.
At 0.5MPa it pushes 1559N and pulls 1402N; at 0.7MPa it pushes 2182N, with a theoretical max of 318kgf at 1.0MPa. This -S model has a piston magnet for legacy CS1-B/DS1-B switches; when upgrading to the SAU, you must switch to CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X250SLB
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X250SLB replacement — usually within 7-8 hours.