This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAUD100X1000S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAUD100X1000S 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 B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X1000S
The AirTAC Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X1000S 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-SAUD100X1000S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke1000 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAUD100X1000S
About the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X1000S
The AirTAC B04-SUD100X1000S is a double-acting, double-rod profile cylinder. The B04- prefix marks it as the construction-machinery dedicated variant, mechanically identical to the standard SUD100X1000S. A rod exits both ends on one piston, meaning both faces use the rod-side area and push/pull force is equal both ways (3681 N @0.5 MPa, 5153 N @0.7, 6626 N @0.9). It features a 100mm bore, 25mm rod, 1/2" port, and 29mm adjustable cushions. This SUD is discontinued; the drop-in replacement is SAUD100X1000S.
The double-rod design provides anti-rotation stability and allows the back rod to carry a sensor cam for legacy CS1-B/DS1-B switches (the SAUD replacement uses current CMSG/DMSG/EMSG sensors). At 0.5 MPa, the safe working load is ~2209 N (60% of force), allowing a vertical lift of ~188 kg with a 2:1 margin. A plain cylinder drifts on air loss; cushions only decelerate, so use an external rod lock for held loads.
Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X1000S Technical Specifications
| Model | Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X1000S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | B04-SAUD100X1000S |
| 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-SAUD100X1000S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| 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-SAUD100X1000S 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 B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X1000S
| 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.
Where the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X1000S Is Used
Excavator Linkage
Drives dual-tool mechanisms on heavy-equipment with equal push and pull force, utilizing the back rod for stable cam positioning.
Crusher Gate Actuator
Operates heavy material flow gates on construction sites, relying on the rigid double-rod profile to prevent torsion under offset loads.
Loader Arm Sync
Synchronizes dual loader arms or clamp mechanisms where anti-rotation is critical and both directions require identical 3681 N force.
Replacing the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X1000S with the B04-SAUD100X1000S
To replace the discontinued B04-SUD100X1000S, order the drop-in SAUD100X1000S, which matches the 100mm bore, 1000mm stroke, 1/2" port, and FA/LB mounting. When sizing both ways, verify your force needs against the equal both ways figures (3681 N @0.5, 6626 N @0.9) and check neighboring bores if you need a different capacity. A double rod is right when you need anti-rotation or must drive two tools. For the -S magnet option, change legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG. At 1000mm stroke, add external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same bore / stroke → B04-SAUD100X1000S
- ✓ 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 B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X1000S FAQ
Yes, the B04-SUD100X1000S is discontinued. The exact drop-in replacement is the SAUD100X1000S. The B04- prefix simply marks it as the construction-machinery dedicated variant of the base SUD model, so all physical specs (100mm bore, 1000mm stroke, 1/2" port, force) are identical. The SAUD keeps the same body, FA/LB mounting, and equal both ways force, but uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
Because it is a double-rod cylinder, the force is equal both ways: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. Based on the 0.5 MPa figure, the safe working load is ~2209 N (60% of force), which allows a vertical lift of ~188 kg with a 2:1 margin. The cylinder operates at 30-800 mm/s with 29mm adjustable cushions, but does not hold loads on air loss without an external rod lock.
Related AirTAC SAU Cylinders
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