This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X400, 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 SU63X400
The AirTAC Airtac SU63-100 Standard Cylinder SU63X400 is a double-acting profile-type standard cylinder with a Ø63mm bore and 400mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X400, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke400 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X400
- 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 SU63X400
The AirTAC SU63X400 is a discontinued double-acting profile-type cylinder with a 63 mm bore and 400 mm stroke. It delivers 1559 N push and 1402 N pull at 0.5 MPa through a 3/8" port. The direct replacement is the SAU63X400, matching the exact body, stroke, force, port size and SC-series mounting.
This extruded aluminium profile is shorter than an ISO 15552 cylinder of the same bore. Note this non-magnet SKU cannot take a sensor, and while the SAU upgrade adds a built-in SAUF valve option, its sensor groove uses CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B.
Airtac SU63-100 Standard Cylinder SU63X400 Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X400 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X400 |
| Bore size | Ø63 mm |
| Stroke | 400 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 SAU63X400 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 SAU63X400 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 SU63X400
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×400 | 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 SU63X400 Is Used
Long-Stroke Diverting
Pushes packages across a 400 mm transfer lane with a safe 935 N working load, using adjustable end cushions to decelerate the diverter arm smoothly.
Material Lowering
Lowers 79 kg fixtures along a 400 mm vertical path, requiring an external pilot-operated check valve to prevent drifting when air pressure is lost.
Press Ejection
Ejects formed parts from a press bed using 1559 N of push force at 0.5 MPa, matching the 3/8" port flow for rapid 30-800 mm/s cycling.
Replacing the Airtac SU63-100 Standard Cylinder SU63X400 with the SAU63X400
To replace the SU63X400, order the SAU63X400 direct equivalent, verifying your 3/8" port, M16x1.5 rod thread and SC-series mounting (LB/FA/FB/CA/CB). Because this 400 mm stroke is long, use external guides to prevent rod bending and side-load damage. If stepping down, the 50 mm bore yields 982 N push at 0.5 MPa; stepping up to 80 mm provides 2513 N. The cushion only decelerates the piston, so fit an external rod lock or pilot-operated check valve if you need to hold a load on air loss. This SKU lacks a magnet and cannot accept a sensor.
Replacement checklist
- ✓ Same bore / stroke → SAU63X400
- ✓ 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 SU63X400 FAQ
Yes, the SU63X400 is discontinued. The direct replacement is the SAU63X400. It shares the identical 63 mm bore, 400 mm stroke, 1559 N force at 0.5 MPa, 3/8" port and SC-series mounting accessories, so it fits the same application directly.
The 3/8" port bore delivers 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, 2805 N push at 0.9 MPa, and a theoretical max of 318 kgf at 1.0 MPa. It operates at 30-800 mm/s with a 21 mm adjustable cushion at both ends.
Request a Quote for the SAU63X400
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X400 replacement — usually within 7-8 hours.