This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAUD100X175S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAUD100X175S 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-SUD100X175S
The AirTAC Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X175S is a double-acting profile-type standard cylinder with a Ø100mm bore and 175mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B04-SAUD100X175S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke175 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAUD100X175S
About the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X175S
The B04-SUD100X175S is a double-acting, double-rod profile cylinder where the B04- prefix designates it as a construction-machinery dedicated variant of the base SUD100X175S, mechanically identical in every spec. A rod exits both ends on a single piston, meaning push and pull force is equal both ways at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The extruded aluminum profile barrel is more compact than an ISO 15552 cylinder of the same bore. This bore uses a 1/2" port, a Ø25 mm rod, and M20x1.5 rod threads. This SUD series is discontinued and the exact drop-in replacement is the SAUD100X175S.
Because the rear rod can carry a sensor cam or drive two tools simultaneously while resisting rotation, the double-rod layout is highly effective for heavy equipment. With a safe working load of roughly 2209 N (about 60% of the 3681 N @0.5 figure), it provides a vertical lift capacity of approximately 188 kg with a 2:1 margin. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches; the SAUD replacement upgrades this to current CMSG/DMSG/EMSG sensors. Note that the air cushion only decelerates the piston near stroke end and does not hold loads on air loss—an external rod lock is required for load holding.
Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X175S Technical Specifications
| Model | Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X175S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | B04-SAUD100X175S |
| Bore size | Ø100 mm |
| Stroke | 175 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-SAUD100X175S 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-SAUD100X175S 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-SUD100X175S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×175 | 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-SUD100X175S Is Used
Excavator Boom Control
Drives dual opposing links on heavy machinery booms, utilizing the equal both-ways force to ensure precise positioning without rotational drift in harsh construction environments.
Crane Load Sync
Simultaneously actuates two clamping arms on a lifting spreader, using the twin rods to carry the sensor cam on one end while delivering 3681 N @0.5 MPa force.
Heavy-Duty Material Handling
Pushes and pulls large construction components through a processing station, leveraging the compact profile barrel and 1/2" port to maintain high flow and speed up to 800 mm/s.
Replacing the Airtac B04-SUD Construction Machinery Special Standard Cylinder B04-SUD100X175S with the B04-SAUD100X175S
To replace the discontinued B04-SUD100X175S, select the drop-in SAUD100X175S, which matches the 100 mm bore, 175 mm stroke, 1/2" port, and FA/LB mounting. When sizing both ways, verify your force requirements against the equal both-ways output of 3681 N @0.5 MPa, stepping to neighbor bores if a different capacity is needed. A double rod is the right choice when you need anti-rotation stability or must drive two tools from one piston. Mounting is compatible with the AirTAC SC series only. For the -S sensor variant, plan to swap the legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors on the SAUD. Because the stroke is 175 mm (under 300 mm), side-load stress is minimal, but always ensure external load holding via a pilot-operated check valve or rod lock, as the 29 mm adjustable cushion only decelerates and will not hold a load without live air.
Replacement checklist
- ✓ Same bore / stroke → B04-SAUD100X175S
- ✓ 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-SUD100X175S FAQ
Yes, the B04-SUD100X175S is discontinued. The B04- prefix marks it as a construction-machinery dedicated variant of the SUD100X175S. The exact drop-in replacement is the SAUD100X175S, which shares the same 100 mm bore, 175 mm stroke, equal both-ways force, 1/2" port, and FA/LB mounting. You only need to upgrade the switches from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG sensors.
Because it is a double-rod cylinder, the push and pull force is equal both ways: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. Operating pressure is 0.15-1.0 MPa. The speed range is 30-800 mm/s. The safe working load is approximately 2209 N, allowing a vertical lift of about 188 kg with a 2:1 margin.
Related AirTAC SAU Cylinders
Request a Quote for the B04-SAUD100X175S
Send us the quantity and destination. We confirm price, stock and lead time on the B04-SAUD100X175S replacement — usually within 7-8 hours.