Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X400S
The AirTAC Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X400S is a genuine double-acting standard air cylinder with a Ø100mm bore and 400mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ100 mm
- Stroke400 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-SC100X400S
The B04-SC100X400S is AirTAC's construction-machinery dedicated variant of the standard SC100X400S pneumatic cylinder. The B04- prefix designates its application in heavy-equipment builds, though mechanically it is identical to the base SC single-rod, double-acting tie-rod cylinder. With a 100mm bore and 400mm stroke, it generates a push force of 3927 N at 0.5 MPa and features a 25mm piston rod with PT1/2 ports.
This model includes a built-in magnet (indicated by the S suffix) allowing CMSG, DMSG, or EMSG sensors to clamp directly onto the barrel for position detection. It utilizes standard TPU seals rated for -20 to +70 C, has a body length A of 188mm, and features adjustable cushions with a 29mm length to decelerate the piston at stroke ends.
Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X400S Technical Specifications
| Model | Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X400S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke | 400 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-SC100X400S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×400 | 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-SC100X400S Is Used
Excavator Actuation
Drives secondary auxiliary mechanisms on heavy construction equipment where robust tie-rod construction withstands high vibration and shock.
Heavy Press Ejection
Provides 3927 N of push force at 0.5 MPa to eject heavy formed parts from large industrial presses and molding equipment.
Material Handling Diverters
Powers heavy-duty diverter arms and sorting gates on aggregate and construction material conveyor lines requiring long 400mm strokes.
Is the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X400S the Right Cylinder?
This 100mm bore provides substantial thrust; if less force is needed, stepping down to an 80mm bore yields 2513 N at 0.5 MPa, while upgrading to a 125mm bore provides 6136 N. For a 400mm stroke, the unsupported 25mm rod is susceptible to bending under side loads. Using an external guide rail or a dedicated guided cylinder is strongly recommended to prevent rod bearing damage.
When replacing this unit, match the 100mm bore, 400mm stroke, PT1/2 port thread, basic mounting style, and the built-in magnet (-S). This AirTAC tie-rod cylinder is dimensionally shorter than an ISO 15552 profile cylinder and is not a drop-in interchange for that standard.
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-SC100X400S FAQ
The B04- prefix indicates this is an AirTAC construction-machinery dedicated cylinder. It is mechanically and dimensionally identical to the standard SC100X400S, featuring the same 100mm bore, 400mm stroke, and 3927 N push force at 0.5 MPa, but is designated for heavy-equipment builders.
No, the SC cylinder is double-acting and does not lock or hold position when air pressure is lost or the valve is centered. The adjustable cushion only decelerates the piston near the stroke end. To hold a vertical load, an external mechanical lock, rod brake, or pilot-operated check valve is required.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X400S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.