This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAUD100X500 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAUD100X500 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-SUD100X500
The AirTAC Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X500 is a double-acting profile-type standard cylinder with a Ø100mm bore and 500mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B04-SAUD100X500, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke500 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAUD100X500
About the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X500
The B04-SUD100X500 is a construction-machinery dedicated variant of the AirTAC SUD100X500 double-acting double-rod profile cylinder. The B04- prefix designates its heavy-equipment industry allocation without altering the core mechanics: it features an extruded aluminum barrel, a 100mm bore, 500mm stroke, and a 1/2 inch port. Because a rod exits both ends on a single piston, the push and pull forces are identical at 3681N @0.5 MPa, 5153N @0.7 MPa, and 6626N @0.9 MPa. This equal-both-ways output prevents rod-side drift discrepancies and allows the rear rod to drive a secondary mechanism.
This SUD model is discontinued and the exact drop-in replacement is the SAUD100X500, which matches the bore, stroke, force, and FA/LB mounting. A computed buyer insight for this 100mm bore: the safe working load is roughly 2209N (about 60% of the 3681N @0.5 MPa figure), yielding a vertical lift capacity of approximately 188kg with a 2:1 margin. Note this SKU lacks a magnet (-S) and cannot take a sensor; the SAUD upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. The 29mm adjustable cushions only decelerate near stroke end—they do not hold loads on air loss.
Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X500 Technical Specifications
| Model | Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X500 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | B04-SAUD100X500 |
| Bore size | Ø100 mm |
| Stroke | 500 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-SAUD100X500 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-SAUD100X500 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-SUD100X500
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×500 | 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-SUD100X500 Is Used
Excavator Linkage Actuation
Drives dual-arm construction equipment linkages where equal push/pull force prevents hydraulic-like lag and the rear rod synchronizes a secondary cover plate.
Crane Counterweight Shift
Moves heavy-equipment counterweights with equal both-ways thrust, relying on external guides to handle side-load over the 500mm stroke.
Paver Form Adjustment
Adjusts paving machine screed forms symmetrically, using the double-rod geometry to prevent rotation and maintain parallel alignment.
Replacing the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X500 with the B04-SAUD100X500
To replace the B04-SUD100X500, order the SAUD100X500 drop-in, which preserves the 100mm bore, 500mm stroke, 1/2 inch port, and FA/LB mounting. Size both directions by verifying your load fits within the 3681N @0.5 MPa equal-both-ways force; if you need less force, step down to the 80mm bore (2268N @0.5 MPa), or if you need more, confirm from datasheet. Choose a double-rod cylinder when you need anti-rotation stability or must drive two tools from one piston. Because this SKU has no magnet, you cannot mount sensors; if sensing is required, select the SAUD with -S and use CMSG/DMSG/EMSG switches. For the 500mm stroke, use external guides to prevent rod bending and side-load wear. For load holding, add an external rod lock or pilot-operated check valve, as air cushions only decelerate.
Replacement checklist
- ✓ Same bore / stroke → B04-SAUD100X500
- ✓ 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-SUD100X500 FAQ
Yes, the B04-SUD100X500 (the construction-machinery dedicated variant of SUD100X500) is discontinued. The exact drop-in replacement is the SAUD100X500, which matches the 100mm bore, 500mm stroke, 1/2 inch port, and FA/LB mounting. The SAUD also offers the SAUF built-in-valve variant and uses current CMSG/DMSG/EMSG sensors.
The 1/2 inch ported 100mm bore provides equal both-ways force of 3681N @0.5 MPa, 5153N @0.7 MPa, and 6626N @0.9 MPa. The safe working load is ~2209N (60% of the 0.5 MPa figure), allowing a 188kg vertical lift with a 2:1 margin.
Related AirTAC SAU Cylinders
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