This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD63X175S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD63X175S 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.

The AirTAC Airtac SUD Series Double Rod Cylinder SUD63X175S is a double-acting profile-type standard cylinder with a Ø63mm bore and 175mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD63X175S, which matches its bore, stroke, force and mounting.
The AirTAC SUD63X175S is a double-acting, double-rod profile cylinder featuring a 63mm bore and 175mm stroke. A rod exits both ends on a single piston, meaning both faces use the rod-side area and push/pull force is equal both ways at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. This discontinued model has a 3/8" port, M16x1.5 rod thread, and adjustable 21mm cushions at each end. The exact drop-in replacement is the SAUD63X175S, sharing the same bore, stroke, force, and FA/LB mounting.
Because the rear rod can carry a sensor cam or drive a second tool simultaneously, double-rod designs excel at anti-rotation and multi-tool tasks. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches; upgrading to the SAUD requires changing to current CMSG/DMSG/EMSG sensors. For sizing, the 1402 N @0.5 MPa force yields a safe working load of roughly 841 N (60% factor) and a vertical lift capacity of about 71 kg with a 2:1 margin. Note that air cushions only decelerate near stroke end; an external rod lock is required to hold loads on air loss.
| Model | Airtac SUD Series Double Rod Cylinder SUD63X175S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD63X175S |
| Bore size | Ø63 mm |
| Stroke | 175 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 SAUD63X175S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAUD63X175S 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.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×175 | 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.
Drives two opposing tools simultaneously from one piston, ensuring perfectly synchronized timing while utilizing the equal both-ways force for balanced cutting or clamping.
The twin-rod profile prevents piston rotation during horizontal part transfer across a conveyor, maintaining precise alignment without external linear guides.
Handles diverter arms on both ends of the cylinder where equal push and pull force is mandatory to push products left or right with identical kinetic energy.
To replace this discontinued SUD63X175S, specify the SAUD63X175S, which is a drop-in match for bore, stroke, 3/8" port, and FA/LB mounting. When sizing both ways, compare neighbouring bores (50mm or 80mm) to ensure the equal both-ways force fits your requirement. Choose a double-rod cylinder when you need anti-rotation stability or must drive two tools from one piston. For the -S magnet option, plan to swap legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors on the SAUD. For this 175mm stroke (under 300mm), side-load alignment is less critical but still verify guide tolerances. Remember, cushions decelerate but do not hold loads; use an external rod lock for vertical holding.
Replacement checklist
Yes, the AirTAC SUD63X175S is discontinued. The exact drop-in replacement is the SAUD63X175S, which matches the 63mm bore, 175mm stroke, 3/8" port, and FA/LB mounting. You will need to upgrade the -S piston magnet sensors from legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG series.
Because it is a double-rod cylinder, the force is equal both ways: 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. The 63mm bore dictates a 3/8" port, a 20mm rod, M16x1.5 rod threads, and 21mm adjustable cushions at each end.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUD63X175S replacement — usually within 7-8 hours.