Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X250S
The AirTAC Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X250S is a genuine double-acting standard air cylinder with a Ø100mm bore and 250mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ100 mm
- Stroke250 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X250S
The B04-SC100X250S is an AirTAC double-acting tie-rod pneumatic cylinder engineered for construction machinery. The B04- prefix designates this as a construction-equipment dedicated variant of the standard SC100X250S, retaining the exact same mechanical specifications, 100mm bore, and 250mm stroke.
Generating a substantial 5497 N of push force at 0.7 MPa, this ISO 6430 class actuator handles heavy-duty tasks. It features a built-in magnet for CMSG/DMSG/EMSG sensor tracking, a 25mm piston rod, and 29mm adjustable cushions to absorb end-of-stroke impact.
Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X250S Technical Specifications
| Model | Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X250S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke | 250 mm |
| Acting type | Double acting |
| Port size | PT1/2 |
| 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 stroke | Up to 1500 mm |
Specifications follow the official AirTAC SC series datasheet. Operating pressure 0.15–1.0 MPa, proof pressure 1.5 MPa, temperature −20 to +70 °C. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (approx.) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X250S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×250 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: SCD (double rod), SCJ (adjustable stroke), SCT (multi-position). Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X250S Is Used
Excavator Actuation
Drives robust auxiliary mechanisms on heavy earthmoving equipment where high force and durable tie-rod construction are required.
Concrete Handling
Powers diverter gates and positioning arms in concrete mixing and batching plants subjected to dusty environments.
Heavy Equipment Gates
Actuates heavy access panels and positioning gates on large construction vehicles and cranes.
Is the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X250S the Right Cylinder?
This 100mm bore provides 5497 N at 0.7 MPa; stepping down to an 80mm bore reduces output to 3518 N, while a 125mm bore increases it to 8590 N for heavier loads. Ensure your replacement matches the 100mm bore, 250mm stroke, PT1/2 port, and magnet option.
With a 250mm stroke, side-load bending on the 25mm rod is a factor. Use external guides or a guided cylinder to prevent rod bearing wear if the load is not perfectly axial.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X250S FAQ
The B04- prefix indicates this is AirTAC's construction-machinery dedicated variant of the SC100X250S. It is mechanically identical to the standard model, offering the same 100mm bore, 250mm stroke, and 5497 N push force at 0.7 MPa.
No, the SC series is double-acting and does not lock or hold position when air pressure is lost. The adjustable cushions only decelerate the piston near stroke ends. A mechanical lock or external brake is required to hold vertical loads safely.
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