Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC80X300S
The AirTAC B04-SC Construction Machinery Special Standard Cylinder B04-SC80X300S is a genuine double-acting standard air cylinder with a Ø80mm bore and 300mm stroke, PT3/8 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ80 mm
- Stroke300 mm
- Port sizePT3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC80X300S
The B04-SC80X300S is an AirTAC double-acting tie-rod pneumatic cylinder engineered for construction machinery. The B04- prefix designates this as the heavy-equipment dedicated variant of the standard SC80X300S, meaning it is mechanically identical to the base model. It delivers a robust 2513 N of push force at 0.5 MPa, scaling up to 4523 N at 0.9 MPa, making it well suited for demanding implement actuation.
This 80 mm bore unit features a 300 mm stroke and a 25 mm piston rod. The built-in S suffix magnet allows CMSG, DMSG, or EMSG sensors to clamp directly onto the barrel for position feedback. With a body length A of 182 mm, the total extended length is approximately 482 mm. It includes adjustable cushions with a 28 mm stroke length to decelerate heavy loads smoothly at stroke ends.
Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC80X300S Technical Specifications
| Model | Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC80X300S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 300 mm |
| Acting type | Double acting |
| Port size | PT3/8 |
| 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, 28 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (approx.) | 513 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-SC80X300S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×300 | 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-SC80X300S Is Used
Excavator Accessory Actuation
Drives secondary heavy-equipment attachments on construction machinery where the B04 designation ensures application-specific stocking and the 2513 N force handles robust implement positioning.
Concrete Pump Positioning
Utilizes the 300 mm stroke and built-in magnet to confirm full extension or retraction of flow diversion gates on concrete pumping rigs.
Heavy Duty Equipment Lifting
Lifts and lowers heavy mechanical covers or hoppers on mobile construction equipment, relying on the 4523 N thrust at 0.9 MPa to move substantial mass.
Is the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC80X300S the Right Cylinder?
This 80 mm bore provides 2513 N push force at 0.5 MPa; if your application requires less force, stepping down to a 63 mm bore yields 1559 N, while moving up to a 100 mm bore provides 3927 N. The 300 mm stroke requires careful attention to side loading. An unsupported 25 mm rod of this length can bend under lateral loads, so utilize an external guide rail or select a guided cylinder to protect the rod bearing and seals.
When specifying a replacement, match these five points exactly: 80 mm bore, 300 mm stroke, PT3/8 port thread, basic mounting (or the specific accessory like F-SC80LB), and the built-in magnet. Note that the SC is a tie-rod cylinder and is shorter than an ISO 15552 unit, so it is not a direct dimensional replacement for ISO profiles.
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-SC80X300S FAQ
The B04- prefix indicates this is an AirTAC construction-machinery dedicated variant. It is mechanically identical to the standard SC80X300S, offering the same 80 mm bore, 300 mm stroke, 25 mm rod, and 2513 N push force at 0.5 MPa, simply designated for heavy-equipment builders.
No. The SC cylinder is double-acting and does not lock or hold position when air is exhausted. The adjustable cushion only decelerates the piston near the end of stroke. For vertical loads that must be held without live pressure, you must use an external mechanical lock or a pilot-operated check valve.
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