This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAUD100X800 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAUD100X800 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-SUD100X800
The AirTAC Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X800 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-SAUD100X800, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke800 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAUD100X800
About the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X800
The B04-SUD100X800 is an AirTAC construction-machinery dedicated double-rod profile cylinder; the B04- prefix marks it as mechanically identical to the standard SUD100X800. A rod exits both ends on one piston, meaning both faces use the rod-side area and push/pull force is equal (3681 N at 0.5 MPa). The extruded aluminium profile barrel is shorter than an ISO 15552 cylinder of the same 100 mm bore. This discontinued model is replaced drop-in by the SAUD100X800, retaining the 1/2" port, M20x1.5 rod thread, and 29 mm cushions.
Because force is equal both ways, the rear rod can drive a second tool or carry a sensor cam without reducing forward thrust. At 0.5 MPa the safe working load is about 2209 N (60% of 3681 N), allowing a vertical lift of roughly 188 kg with a 2:1 margin. Note this SKU has no magnet (-S) and cannot take a switch; the SAUD replacement uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. Air cushions only decelerate near stroke end; use an external rod lock to hold loads.
Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X800 Technical Specifications
| Model | Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X800 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | B04-SAUD100X800 |
| 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-SAUD100X800 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-SAUD100X800 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-SUD100X800
| 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-SUD100X800 Is Used
Excavator Linkage Actuation
Drives dual-tool mechanisms on heavy construction equipment where equal push and pull force is required to handle structural loads without deflection.
Crusher Jam Clearance
Uses the rear extending rod to simultaneously operate a secondary release valve, providing synchronized two-way motion for clearing rock jams.
Loader Boom Sync
Anti-rotation properties keep the piston aligned under high side-loads during heavy machinery boom extensions, ensuring stable multi-axis movement.
Replacing the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X800 with the B04-SAUD100X800
To replace the discontinued B04-SUD100X800, order the drop-in SAUD100X800, which matches the 100 mm bore, 800 mm stroke, 1/2" port, and FA/LB mounting. When sizing both ways, compare neighbouring bores (80 mm or 100 mm) to ensure the equal-both-ways force (3681 N at 0.5 MPa) meets your push and pull requirements. Choose a double-rod cylinder when you need anti-rotation, equal force, or a back rod to drive two tools. For this 800 mm stroke, use external guides to prevent rod bending and side-load damage. This non-magnetic SKU cannot take sensors; upgrading to the SAUD requires switching from CS1-B/DS1-B to CMSG/DMSG/EMSG switches.
Replacement checklist
- ✓ Same bore / stroke → B04-SAUD100X800
- ✓ 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-SUD100X800 FAQ
Yes, the B04-SUD100X800 (construction-machinery dedicated SUD100X800) is discontinued. The exact drop-in replacement is the SAUD100X800, which shares the same 100 mm bore, 800 mm stroke, 1/2" port, and FA/LB mounting. The SAUD also upgrades sensing to current CMSG/DMSG/EMSG switches.
As a double-rod cylinder, force is equal both ways: 3681 N at 0.5 MPa, 5153 N at 0.7 MPa, and 6626 N at 0.9 MPa. The bore dictates a 1/2" port, and it features a 25 mm rod with an M20x1.5 thread. The safe working load is about 2209 N at 0.5 MPa.
Related AirTAC SAU Cylinders
Request a Quote for the B04-SAUD100X800
Send us the quantity and destination. We confirm price, stock and lead time on the B04-SAUD100X800 replacement — usually within 7-8 hours.