This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAUD100X800S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAUD100X800S 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-SUD100X800S
The AirTAC Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X800S is a double-acting profile-type standard cylinder with a Ø100mm bore and 800mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B04-SAUD100X800S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke800 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAUD100X800S
About the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X800S
The B04-SUD100X800S is an AirTAC double-acting, double-rod profile cylinder where the B04- prefix designates it as the construction-machinery dedicated variant of the base SUD100X800S, sharing identical specifications. A rod exits both ends on one piston, meaning both faces use the rod-side area and push/pull force is equal at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. This discontinued model features a 100mm bore, 800mm stroke, 1/2" port, M20x1.5 rod thread, and 29mm adjustable air cushions. The exact drop-in replacement is the SAUD100X800S, retaining the same bore, stroke, force, port, and FA/LB mounting.
Because the rear rod can carry a sensor cam or drive a second tool simultaneously, double-rod designs excel in heavy-equipment applications requiring anti-rotation stability. The extruded aluminum profile barrel is shorter than a standard 15552 cylinder. For this 800mm long stroke, external guides are strongly recommended to manage side-load and rod-bending risks. Based on the 0.5 MPa force, the safe working load is roughly 2209 N (about 60% of capacity), allowing a vertical lift of approximately 188 kg with a 2:1 safety margin. Note that a plain cylinder drifts on air loss; the cushion only decelerates near stroke end, so an external rod lock is needed for held loads.
Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X800S Technical Specifications
| Model | Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X800S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | B04-SAUD100X800S |
| Bore size | Ø100 mm |
| Stroke | 800 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-SAUD100X800S 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-SAUD100X800S 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-SUD100X800S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×800 | 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-SUD100X800S Is Used
Excavator Actuation
Drives synchronized heavy-equipment covers on construction machinery where equal both-ways force and anti-rotation stability are critical for safe operation.
Crane Load Centering
Positions heavy structural components using the rear rod as a sensor cam, ensuring precise alignment in harsh construction environments.
Dual-Tool Drilling
Powers two opposing fastening tools simultaneously from one piston, utilizing the compact profile barrel to save space on heavy-equipment assemblies.
Replacing the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X800S with the B04-SAUD100X800S
To replace the discontinued B04-SUD100X800S, order the drop-in SAUD100X800S, which matches the 100mm bore, 800mm stroke, 1/2" port, and FA/LB mounting. When sizing both ways, verify your force requirements against the equal both-ways output: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. If less force is needed, the neighboring 80mm bore provides 2268 N @0.5 MPa; if more is required, confirm custom solutions. Choose a double-rod configuration when you need anti-rotation stability or must drive two tools from one piston. Because this model has the -S magnet, you must upgrade from the legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensors used on the SAUD. For the 800mm stroke, ensure external guides are installed to prevent rod bending under side loads.
Replacement checklist
- ✓ Same bore / stroke → B04-SAUD100X800S
- ✓ 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-SUD100X800S FAQ
Yes, the B04-SUD100X800S is discontinued. The B04- prefix simply marks it as the construction-machinery dedicated variant of the base SUD100X800S, mechanically identical to it. The exact drop-in replacement is the SAUD100X800S, which matches the 100mm bore, 800mm stroke, 1/2" port, and FA/LB mounting. You must upgrade the -S magnet switches from the legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG sensors.
Because it is a double-rod cylinder, the push and pull force are equal both ways: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The safe working load is approximately 2209 N, allowing a vertical lift of about 188 kg with a 2:1 margin. The operating speed ranges from 30-800 mm/s, operating pressure is 0.15-1.0 MPa, and it uses a 1/2" port with a 29mm adjustable air cushion at each end.
Related AirTAC SAU Cylinders
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