This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAUD100X1000 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAUD100X1000 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 B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X1000 is a double-acting profile-type standard cylinder with a Ø100mm bore and 1000mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B04-SAUD100X1000, which matches its bore, stroke, force and mounting.
The B04-SUD100X1000 is an AirTAC double-acting, double-rod profile cylinder where the B04- prefix designates the construction-machinery dedicated variant of the base SUD100X1000, sharing exact mechanical specs. A rod exits both ends of the 100mm bore, yielding equal push and pull force of 3681N at 0.5MPa, 5153N at 0.7MPa, and 6626N at 0.9MPa. It features a 1/2" port, M20x1.5 rod thread, and 29mm adjustable cushions. This legacy model is discontinued; the drop-in replacement is the SAUD100X1000.
Because both faces use the rod-side area, force is equal both ways and the rear rod can drive a second tool. The SAUD upgrade uses current CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B, though this specific SKU lacks a magnet for sensing. Based on the 3681N force at 0.5MPa, the safe working load is about 2209N, allowing a vertical lift of roughly 188kg with a 2:1 margin. Air cushions only decelerate near stroke end; use an external rod lock for load holding.
| Model | Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X1000 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | B04-SAUD100X1000 |
| Bore size | Ø100 mm |
| Stroke | 1000 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The B04-SAUD100X1000 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The B04-SAUD100X1000 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). |
|---|---|
| 100 | Bore size in mm. |
| ×1000 | 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 heavy mechanical linkages on construction machinery where the B04- prefix indicates dedicated heavy-equipment integration and equal both-ways force is required.
Uses the extending front rod and rear rod to push opposing items simultaneously on a construction-materials line, benefiting from the 188kg vertical lift capacity.
Operates a heavy industrial gate on a batching plant, using the double-rod geometry to prevent torsional twist and maintain stable alignment over the long stroke.
To replace the discontinued B04-SUD100X1000, select the SAUD100X1000, which matches the 100mm bore, 1000mm stroke, 1/2" port, and FA/LB mounting. When sizing, verify equal-both-ways force across neighbor bores: the 100mm bore delivers 3681N at 0.5MPa, while the smaller 80mm bore provides 2268N. A double-rod design is right when you need anti-rotation stability or must drive two tools from one piston. For the 1000mm stroke, add external guides to prevent rod bending under side-load. Since this SKU has no magnet, the SAUD sensor change to CMSG/DMSG/EMSG only applies if you switch to an -S model.
Replacement checklist
Yes, it is discontinued. The exact drop-in replacement is the SAUD100X1000. The B04- prefix simply marks it as construction-machinery dedicated; the SAUD shares the identical 100mm bore, 1000mm stroke, 1/2" port, and FA/LB mounting.
Force is equal in both directions: 3681N at 0.5MPa, 5153N at 0.7MPa, and 6626N at 0.9MPa. The bore is 100mm with a 1/2" port, M20x1.5 rod thread, and 29mm cushions. The safe working load is about 2209N.
Send us the quantity and destination. We confirm price, stock and lead time on the B04-SAUD100X1000 replacement — usually within 7-8 hours.