Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X320S
The AirTAC Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X320S is a genuine double-acting standard air cylinder with a Ø100mm bore and 320mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ100 mm
- Stroke320 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-SC100X320S
The B04-SC100X320S is an AirTAC double-acting tie-rod pneumatic cylinder engineered for heavy-equipment builders. The "B04-" prefix designates this as the construction-machinery dedicated variant of the standard SC100X320S, meaning it is mechanically identical to the base model but tailored for that industry's sourcing. It delivers a robust 3927 N of push force at 0.5 MPa and features a 320 mm stroke.
Equipped with a built-in magnet (the "S" suffix), this unit allows CMSG, DMSG, or EMSG sensors to clamp directly onto the barrel for position detection. The 100 mm bore utilizes a 25 mm piston rod, PT1/2 porting, and 29 mm adjustable cushions to decelerate the piston at stroke ends. Its body length A is 188 mm, yielding a total extended length of approximately 508 mm.
Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X320S Technical Specifications
| Model | Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X320S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke | 320 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-SC100X320S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×320 | 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-SC100X320S Is Used
Excavator Door Actuation
Drives heavy cab doors or access panels on earthmoving equipment, utilizing the 320mm stroke and 3927N force to push and pull substantial weights reliably.
Heavy Press Ejection
Ejects dense fabricated components from hydraulic presses in machinery manufacturing, relying on the 100mm bore's 5497N thrust at 0.7MPa operating pressure.
Loader Component Shifting
Positions or locks secondary mechanical linkages on construction loaders where a compact 188mm body length and robust tie-rod construction are required.
Is the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X320S the Right Cylinder?
This 100 mm bore cylinder provides 3927 N push force at 0.5 MPa. If your application requires less force, stepping down to an 80 mm bore yields 2513 N; if you need more power, a 125 mm bore provides 6136 N. For replacement matching, verify the 100 mm bore, 320 mm stroke, PT1/2 port thread, basic mounting style, and the required built-in magnet.
Because the 320 mm stroke exceeds the 300 mm threshold, the unsupported 25 mm rod is susceptible to bending under side loads. To prevent premature rod-bearing wear or piston drift, use an external guide rail or select a guided cylinder to absorb lateral forces entirely.
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-SC100X320S FAQ
The B04- prefix indicates this is AirTAC's construction-machinery dedicated line. The B04-SC100X320S is mechanically identical to the standard SC100X320S, featuring the exact same 100mm bore, 320mm stroke, PT1/2 port, and 3927N push force at 0.5MPa, but is designated for heavy-equipment manufacturing channels.
No, standard SC cylinders cannot sustain significant side loads, especially at 320mm where the extended 25mm rod is vulnerable to bending. An external guide mechanism or a guided cylinder should be used to support lateral loads and protect the rod bearing.
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