This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAUD100X150 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAUD100X150 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-SUD100X150
The AirTAC Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X150 is a double-acting profile-type standard cylinder with a Ø100mm bore and 150mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B04-SAUD100X150, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke150 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAUD100X150
About the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X150
The B04-SUD100X150 is a double-acting, double-rod profile cylinder where the B04- prefix denotes the construction-machinery dedicated variant of the base SUD100X150, mechanically identical in every spec. A rod exits both ends on one piston, meaning push and pull force are equal at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. It features a 100mm bore, 150mm stroke, 1/2" port, M20x1.5 rod thread, and 29mm adjustable cushions. This SKU has no magnet and cannot take a sensor.
This SUD series is discontinued and replaced by the drop-in SAUD100X150, which retains the exact bore, stroke, force, port, and FA/LB mounting. The double-rod design prevents rod rotation and lets the back rod drive a second tool. For sizing, the safe working load is ~2209 N (60% of the 3681 N @0.5 figure), allowing a vertical lift of ~188 kg with a 2:1 margin. Note that air cushions only decelerate; use an external rod lock to hold loads.
Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X150 Technical Specifications
| Model | Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X150 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | B04-SAUD100X150 |
| Bore size | Ø100 mm |
| Stroke | 150 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-SAUD100X150 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-SAUD100X150 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-SUD100X150
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×150 | 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-SUD100X150 Is Used
Excavator Linkage
Equal-both-ways force drives synchronized opposing plates in heavy-equipment cabin assemblies without rod rotation.
Crane Guide
The back rod pushes a secondary mechanical stop on a mobile crane boom, doubling as an anti-rotation guide.
Paver Spreader
Dual outward strokes actuate a paver screed from the center, ensuring balanced material flow on road sites.
Replacing the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X150 with the B04-SAUD100X150
To replace the B04-SUD100X150, use the drop-in SAUD100X150. Size both directions by checking neighbor bores (80mm or 100mm) against your equal-both-ways force needs. A double rod is right when you need anti-rotation or to drive two tools. Mounting is Basic, FA, or LB only. This non-magnetic SKU cannot take sensors, but the SAUD uses current CMSG/DMSG/EMSG sensors instead of legacy CS1-B/DS1-B. For stroke >=300, confirm side-load limits. A plain cylinder drifts on air loss; use an external rod lock for held loads.
Replacement checklist
- ✓ Same bore / stroke → B04-SAUD100X150
- ✓ 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-SUD100X150 FAQ
Yes, it is discontinued. The exact drop-in replacement is the SAUD100X150. The B04- prefix simply marks the construction-machinery dedicated variant of SUD100X150, and the SAUD retains the exact 100mm bore, 150mm stroke, 1/2" port, and FA/LB mounting.
Force is equal both ways at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The air port is 1/2". The safe working load is ~2209 N, allowing a vertical lift of ~188 kg with a 2:1 margin.
Related AirTAC SAU Cylinders
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