This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X50LB, 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 SU63X50LB
The AirTAC SU63-100 Standard Cylinder SU63X50LB is a double-acting profile-type standard cylinder with a Ø63mm bore and 50mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X50LB, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke50 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X50LB
- 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 SU63X50LB
The AirTAC SU63X50LB is a discontinued double-acting profile-type cylinder with a 63mm bore, 50mm stroke, and an LB mounting interface. Delivering 1559 N of push force at 0.5 MPa, it uses an extruded aluminum barrel that is shorter and more compact than an ISO 15552 cylinder of the same bore, sharing AirTAC SC-series mounting accessories. The direct replacement is the SAU63X50LB, which preserves the bore, stroke, 3/8" port, and LB mount.
Because this SKU lacks a magnet, it cannot accept a magnetic switch. The SAU upgrade introduces current CMSG/DMSG/EMSG sensors (the SU used legacy CS1-B/DS1-B) and offers a SAUF variant with a built-in 4M solenoid valve the SU line never had.
Airtac SU63-100 Standard Cylinder SU63X50LB Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X50LB |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X50LB |
| Bore size | Ø63 mm |
| Stroke | 50 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 SAU63X50LB 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 SAU63X50LB 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 SU63X50LB
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×50 | 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 SU63X50LB Is Used
Clamp Actuation
Provides 1559 N of push force at 0.5 MPa to secure heavy workpieces during machining operations, utilizing the LB mount for rigid body attachment.
Pallet Stopping
Acts as a compact end-stop for pallets, absorbing impact via the 21mm adjustable air cushion while maintaining a sturdy profile.
Replacing the Airtac SU63-100 Standard Cylinder SU63X50LB with the SAU63X50LB
To replace this discontinued SU63X50LB, order the SAU63X50LB ensuring the 3/8" port, M16x1.5 rod thread, and LB mounting bracket match your existing setup. If you need position sensing, note this no-magnet SKU cannot take a switch; the SAU replacement requires CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. Sizing both ways: a 50mm bore provides 982 N push @0.5 MPa, while an 80mm bore yields 2513 N. This 63mm bore gives 1559 N push and 1402 N pull @0.5 MPa. A plain cylinder does not hold load on air loss—the cushion only decelerates—so use an external rod lock or pilot-operated check valve for held loads. The SAUF built-in-valve option is available if you need integrated control.
Replacement checklist
- ✓ Same bore / stroke → SAU63X50LB
- ✓ 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 SU63X50LB FAQ
Yes, the AirTAC SU63X50LB is discontinued. The direct replacement is the SAU63X50LB. It offers the same 63mm bore, 50mm stroke, 3/8" port, output force, and SC-series LB mounting compatibility, so it fits the same application directly.
This double-acting cylinder delivers 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and a theoretical maximum of 318 kgf at 1.0 MPa. Because this specific SKU lacks a magnet (-S), it cannot accept a magnetic switch; the SAU replacement uses CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X50LB
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X50LB replacement — usually within 7-8 hours.