This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAUD100X225S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAUD100X225S 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-SUD100X225S
The AirTAC Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X225S is a double-acting profile-type standard cylinder with a Ø100mm bore and 225mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B04-SAUD100X225S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke225 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAUD100X225S
About the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X225S
The B04-SUD100X225S is a double-acting, double-rod profile cylinder where the B04- prefix designates it as AirTAC's construction-machinery dedicated variant of the base SUD100X225S, mechanically identical to the standard model. A rod exits both ends of the extruded aluminium profile barrel on a single piston, meaning push and pull force are equal both ways at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. It features a 1/2 inch port, M20x1.5 rod thread, and 29 mm adjustable cushions. This discontinued model is fully replaced by the drop-in SAUD100X225S.
Because the rear rod can carry a sensor cam or drive a second tool simultaneously while resisting rotation, double-rod designs excel in heavy equipment. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches, which the SAUD replacement upgrades to CMSG/DMSG/EMSG sensors. For sizing, the safe working load is approximately 2209 N (60 percent of the 0.5 MPa force), allowing a vertical lift of about 188 kg with a 2:1 margin. Note that air cushions only decelerate; an external rod lock is required for load holding without live air.
Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X225S Technical Specifications
| Model | Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X225S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | B04-SAUD100X225S |
| Bore size | Ø100 mm |
| Stroke | 225 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-SAUD100X225S 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-SAUD100X225S 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-SUD100X225S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×225 | 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-SUD100X225S Is Used
Excavator Linkage Actuation
Drives synchronized tooling on heavy equipment where the equal both ways force and anti-rotation properties of the double rod keep construction machinery movements stable under varying loads.
Crane Load Positioning
Positions heavy structural components using the back rod to carry a sensor cam, ensuring precise feedback for builders requiring robust performance in demanding environments.
Dual-Tool Drilling Heads
Powers opposing drilling or clamping tools simultaneously from both rod ends, leveraging the compact profile body and 3681 N @0.5 MPa equal force to maximize efficiency in tight machinery frames.
Replacing the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X225S with the B04-SAUD100X225S
To replace the discontinued B04-SUD100X225S, use the drop-in SAUD100X225S, which matches the 100 mm bore, 225 mm stroke, 1/2 inch port, and FA/LB mounting. When sizing both ways, verify your force needs against the 3681 N @0.5 MPa equal both ways output, checking neighbouring bores if a different capacity is required. A double rod is right when you need anti-rotation, equal push/pull force, or a back rod to carry a sensor cam. For the -S magnet, change legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors. For strokes >=300 mm, confirm the side-load line to prevent guide wear. Remember, cushions only decelerate; use an external rod lock for held loads.
Replacement checklist
- ✓ Same bore / stroke → B04-SAUD100X225S
- ✓ 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-SUD100X225S FAQ
Yes, the B04-SUD100X225S is discontinued. The B04- prefix marks it as the construction-machinery dedicated variant of SUD100X225S. The exact drop-in replacement is the SAUD100X225S, which shares the same bore, stroke, force, 1/2 inch port, and FA/LB mounting, but uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
Because it is a double-rod cylinder, force is equal both ways: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The safe working load is roughly 2209 N. It uses a 1/2 inch port, has a 25 mm rod with an M20x1.5 thread, and operates at speeds of 30-800 mm/s.
Related AirTAC SAU Cylinders
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