This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X85, 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 SU63X85
The AirTAC Airtac SU63-100 Standard Cylinder SU63X85 is a double-acting profile-type standard cylinder with a Ø63mm bore and 85mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X85, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke85 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X85
- 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 SU63X85
The AirTAC SU63X85 is a discontinued double-acting profile-type cylinder with an 85 mm stroke. Built with an extruded aluminum barrel, it is more compact than an ISO 15552 unit of the same bore.
The direct replacement is the SAU63X85, retaining the 63 mm bore, 85 mm stroke, 3/8" port, M16x1.5 rod thread and SC-series mounting. The SAU upgrade uses current CMSG/DMSG/EMSG sensors, whereas this legacy SU relied on CS1-B/DS1-B switches. Furthermore, the SAU line introduces a SAUF variant with a built-in 4M solenoid valve that the SU series never offered.
Airtac SU63-100 Standard Cylinder SU63X85 Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X85 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X85 |
| Bore size | Ø63 mm |
| Stroke | 85 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 SAU63X85 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 SAU63X85 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 SU63X85
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×85 | 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 SU63X85 Is Used
Package Diverting
Actuates routing gates on packaging lines using its 1559 N thrust to positively redirect heavy cartons at speed.
Pallet Stopping
Functions as a robust end-stop on roller conveyors, safely absorbing pallet momentum via its adjustable 21 mm cushions.
Replacing the Airtac SU63-100 Standard Cylinder SU63X85 with the SAU63X85
To replace this SU63X85, order the SAU63X85 direct equivalent, verifying your 3/8" port, M16x1.5 rod thread, PT/G/NPT thread standard, and SC-series mounting hardware. This non-magnetic SKU cannot accept a sensor; if position detection is needed, the SAU replacement requires CMSG/DMSG/EMSG switches. Sizing both ways: a 50 mm bore gives 982 N push at 0.5 MPa, while an 80 mm bore provides 2513 N. Note that 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 suspended loads. At 85 mm stroke, side-load risks are low, but ensure correct alignment.
Replacement checklist
- ✓ Same bore / stroke → SAU63X85
- ✓ 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 SU63X85 FAQ
Yes, the SU63X85 is discontinued. The direct replacement is the SAU63X85. It matches the 63 mm bore, 85 mm stroke, 3/8" port, output force, and SC-series mounting accessories, so it fits the same application directly.
It delivers 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and a maximum theoretical force of 318 kgf at 1.0 MPa. This specific SKU lacks a magnet and cannot take a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches.
Request a Quote for the SAU63X85
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X85 replacement — usually within 7-8 hours.