This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAUD32X100S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAUD32X100S 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-SUD32X100S
The AirTAC Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD32X100S is a double-acting profile-type standard cylinder with a Ø32mm bore and 100mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B04-SAUD32X100S, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke100 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → B04-SAUD32X100S
About the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD32X100S
The AirTAC B04-SUD32X100S is a discontinued double-acting double-rod profile cylinder. The B04- prefix marks it as a construction-machinery dedicated variant, mechanically identical to the base SUD32X100S. A rod exits both ends on one piston, meaning push and pull force are equal at 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. It features a 32 mm bore, 1/8" port, and M10x1.25 rod thread. The exact drop-in replacement is the SAUD32X100S.
This design provides anti-rotation stability and allows the back rod to carry a sensor cam for legacy CS1-B/DS1-B switches. The SAUD upgrade uses current CMSG/DMSG/EMSG sensors. Based on the 345 N @0.5 MPa force, the safe working load is ~207 N, yielding a ~18 kg vertical lift with a 2:1 margin. Note that air cushions only decelerate; an external rod lock is required for load holding.
Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD32X100S Technical Specifications
| Model | Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD32X100S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | B04-SAUD32X100S |
| Bore size | Ø32 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 1000 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The B04-SAUD32X100S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The B04-SAUD32X100S 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-SUD32X100S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×100 | 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-SUD32X100S Is Used
Excavator Linkage
Drives synchronized dual-tool mechanisms on heavy equipment where equal push/pull force prevents linkage binding.
Crane Guidance
Uses the back rod as a sensor cam track for legacy CS1-B/DS1-B switches to monitor positioning in crane rigs.
Loader Actuation
Provides anti-rotation stability for compact loader actuation gates, fitting a shorter profile body than standard.
Replacing the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD32X100S with the B04-SAUD32X100S
To replace the B04-SUD32X100S, order the SAUD32X100S drop-in, which matches the 32 mm bore, 100 mm stroke, 1/8" port, and FA/LB mounting. Size both ways by checking neighbor bores while requiring equal force both ways. A double rod is right when you need anti-rotation or dual-tool driving. The -S sensor changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. For stroke >=300, confirm side-load line limits.
Replacement checklist
- ✓ Same bore / stroke → B04-SAUD32X100S
- ✓ 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-SUD32X100S FAQ
Yes, it is discontinued. The B04- prefix denotes the construction-machinery dedicated variant of the base SUD32X100S. The exact drop-in replacement is the SAUD32X100S, which matches the 32 mm bore, 100 mm stroke, 1/8" port, and FA/LB mounting.
Because it is a double-rod cylinder, force is equal both ways: 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. The bore is 32 mm, the air port is 1/8", and the rod thread is M10x1.25. The safe working load is ~207 N.
Related AirTAC SAU Cylinders
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