Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X125CAY
The AirTAC Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X125CAY is a genuine double-acting standard air cylinder with a Ø100mm bore and 125mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ100 mm
- Stroke125 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-SC100X125CAY
The B04-SC100X125CAY is an AirTAC double-acting tie-rod pneumatic cylinder engineered for construction machinery. The B04- prefix designates this as a construction-machinery dedicated variant of the standard SC100X125CA cylinder, meaning it is mechanically identical to the base SC series but targeted for heavy-equipment builders. It features a 100mm bore and a 125mm stroke.
This model delivers a robust push force of 3927 N at 0.5 MPa and reaches 7068 N at its 0.9 MPa maximum operating pressure. It incorporates a 25mm piston rod, PT1/2 port threads, and 29mm adjustable cushions to absorb end-of-stroke impact. The CA rear single clevis mounting allows for pivoting articulation in dynamic equipment linkages.
Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X125CAY Technical Specifications
| Model | Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X125CAY |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke | 125 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-SC100X125CAY
| SC | Standard tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×125 | 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-SC100X125CAY Is Used
Excavator Linkage Control
Actuates secondary articulating arms or covers on earthmoving equipment, utilizing the CA clevis to accommodate pivot geometry during extension.
Concrete Dispenser Gate
Provides the high 7068 N output force at 0.9 MPa needed to open and close heavy aggregate dispensing gates on mobile batching machinery.
Heavy Equipment Latches
Drives robust locking latches and heavy-duty access panels on construction vehicles where a short 125mm stroke and high force are required.
Is the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X125CAY the Right Cylinder?
Select this 100mm bore cylinder when your heavy equipment requires substantial force that smaller bores cannot provide; stepping down to an 80mm bore drops the 0.5 MPa push force to 2513 N, while stepping up to a 125mm bore increases it to 6136 N. The CA rear clevis is ideal for applications requiring angular movement during the stroke cycle.
When replacing this unit, match these five attributes exactly: 100mm bore, 125mm stroke, PT1/2 port thread, CA rear clevis mounting (accessory code F-SC100CA), and no built-in magnet. Although the 125mm stroke is relatively short, always ensure the rod bearing is protected from excessive side loads, which can be managed by using external guides or a guided cylinder module.
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-SC100X125CAY FAQ
The B04- prefix indicates that this is an AirTAC construction-machinery dedicated cylinder. It is mechanically and dimensionally identical to the standard SC100X125CA cylinder, featuring the same 100mm bore, 125mm stroke, CA mounting, and PT1/2 ports, but is designated for heavy-equipment applications.
At 0.5 MPa, this 100mm bore cylinder provides a push force of 3927 N and a pull force of 3681 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 7068 N.
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