This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement B04-SAUD100X700, with the same bore, stroke, output force, port and mounting, so it fits the same application. 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-SUD100X700
The AirTAC Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X700 is a double-acting profile-type standard cylinder with a Ø100mm bore and 700mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAUD100X700, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke700 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAUD100X700
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X700
The B04-SUD100X700 is a double-acting, double-rod profile cylinder where the B04- prefix marks it as AirTAC's construction-machinery dedicated variant of the SUD100X700, mechanically identical to the base model. A rod exits both ends of the single piston, meaning push and pull forces are equal both ways at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. It features a 100mm bore, 700mm stroke, 1/2" port, M20x1.5 rod thread, and 29mm adjustable air cushions. This SUD series is discontinued and the direct replacement is the SAUD100X700, which retains the same body, bore, stroke, force, port, and FA/LB mounting.
Because the second rod can drive a second tool or carry a sensor cam while resisting rotation, double-rod designs excel in heavy-equipment frames. Note this SKU has no magnet (-S) and cannot take a magnetic switch. The air cushion only decelerates near stroke end; it does not hold loads on air loss, so an external rod lock is needed for holding.
Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X700 Technical Specifications
| Model | Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X700 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | B04-SAUD100X700 |
| Bore size | Ø100 mm |
| Stroke | 700 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-SAUD100X700 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-SAUD100X700 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X700
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×700 | 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-SUD100X700 Is Used
Excavator Linkage Actuation
Drives synchronized dual-tool mechanisms on heavy-equipment frames where equal push/pull force and high side-load resistance are critical.
Crane Boom Alignment
Uses the twin-rod anti-rotation特性 to keep construction-machinery booms aligned without twisting during extension.
Concrete Pump Gate
Simultaneously shifts two diverter gates from opposite ends, leveraging the 3681 N @0.5 MPa equal force for reliable material routing.
Replacing the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X700 with the B04-SAUD100X700
To replace the discontinued B04-SUD100X700, use the SAUD100X700 direct: same 100mm bore, 700mm stroke, equal-both-ways force, 1/2" port, and FA/LB mounting. When sizing both ways, verify the 3681 N @0.5 MPa output fits your load, or step to neighboring bores if more force is needed. A double rod is right when you need anti-rotation, dual-tool driving, or a back rod for a sensor cam. Because this SKU lacks a magnet, it cannot take sensors; the SAUD replacement uses current CMSG/DMSG/EMSG sensors (the SUD used legacy CS1-B/DS1-B). For the 700mm stroke, add external guides to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same bore / stroke → B04-SAUD100X700
- ✓ 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-SUD100X700 FAQ
Yes, this SUD model is discontinued. The B04- prefix simply marks it as the construction-machinery dedicated variant of the SUD100X700. The direct replacement is the SAUD100X700, which matches the 100mm bore, 700mm stroke, equal force, 1/2" port, and FA/LB mounting.
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 bore dictates a 1/2" air port. The air cushion only decelerates; it does not hold loads on air loss, requiring an external rod lock for holding.
Related AirTAC SAU Cylinders
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