This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD63X250 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD63X250 in place of this model. 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 SUD Series Double Rod Cylinder SUD63X250
The AirTAC Airtac SUD Series Double Rod Cylinder SUD63X250 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 drop-in replacement is the SAUD63X250, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke250 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUD63X250
About the Airtac SUD Series Double Rod Cylinder SUD63X250
The AirTAC SUD63X250 is a discontinued double-acting double-rod profile cylinder featuring a 63mm bore, 250mm stroke, and a 3/8 inch port. Because a rod exits both ends on one piston, both faces use the rod-side area, making push and pull force equal at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. This compact extruded aluminium profile barrel is shorter than an ISO 15552 cylinder of the same bore. The exact drop-in replacement is the SAUD63X250, which matches the bore, stroke, force, port, and FA/LB mounting.
This non-magnetic SKU cannot take a sensor, whereas the SAUD upgrade uses current CMSG/DMSG/EMSG sensors (this legacy model used CS1-B/DS1-B). A double-rod design prevents rotation and lets the back rod drive a second tool. For sizing, the safe working load is roughly 841 N (60% of the 1402 N @0.5 figure), yielding a vertical lift capacity of about 71 kg with a 2:1 margin. Note that air cushions only decelerate near stroke end; use an external rod lock for load holding.
Airtac SUD Series Double Rod Cylinder SUD63X250 Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD63X250 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD63X250 |
| 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 SAUD63X250 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 SAUD63X250 produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUD Series Double Rod Cylinder SUD63X250
| 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 SUD Series Double Rod Cylinder SUD63X250 Is Used
Dual-Tool Machining Station
Drives two opposing tools simultaneously from a single piston, utilising the equal both-ways force to machine parts on both ends efficiently.
Anti-Rotation Transfer Unit
The twin-rod geometry prevents mechanical rotation during part transfer across a conveyor, ensuring precise placement without external linear guides.
Symmetric Clamping Fixture
Applies equal clamping pressure from both directions to hold irregular workpieces securely, taking advantage of the matched push and pull forces.
Replacing the Airtac SUD Series Double Rod Cylinder SUD63X250 with the SAUD63X250
To replace the discontinued SUD63X250, order the drop-in SAUD63X250, which preserves the 63mm bore, 250mm stroke, 3/8 inch port, and FA/LB mounting compatibility with the AirTAC SC series. Size both ways by checking neighbouring bores while relying on the equal-both-ways force (1402 N @0.5 MPa). Choose a double-rod cylinder when you need anti-rotation stability or must drive two tools simultaneously. Because this specific SKU lacks a magnet, it cannot take a switch; upgrading to the SAUD with an S suffix enables CMSG/DMSG/EMSG sensors. For this 250mm stroke, ensure your side-load guide is aligned to prevent rod binding. Remember that cushions only decelerate; add a pilot-operated check valve or external rod lock to hold loads without live air.
Replacement checklist
- ✓ Same bore / stroke → SAUD63X250
- ✓ 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 SUD Series Double Rod Cylinder SUD63X250 FAQ
Yes, the SUD63X250 is discontinued. The exact drop-in replacement is the SAUD63X250, which matches the 63mm bore, 250mm stroke, 3/8 inch port, and FA/LB mounting.
The 3/8 inch ported 63mm bore provides equal push and pull force of 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa.
Related AirTAC SAU Cylinders
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