Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC80X635S
The AirTAC B04-SC Construction Machinery Special Standard Cylinder B04-SC80X635S is a genuine double-acting standard air cylinder with a Ø80mm bore and 635mm stroke, PT3/8 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ80 mm
- Stroke635 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-SC80X635S
The B04-SC80X635S is an AirTAC double-acting tie-rod pneumatic cylinder built for construction machinery. The B04- prefix designates this as the construction-machinery dedicated variant of the SC80X635S, meaning it is mechanically identical to the standard model with an 80mm bore and 635mm stroke. It generates a push force of 2513 N at 0.5 MPa and up to 4523 N at 0.9 MPa.
This unit includes a built-in magnet (S suffix) for mounting CMSG or DMSG reed sensors along the 182 mm body length. It features a 25 mm piston rod, a PT3/8 port, and adjustable cushions measuring 28 mm to decelerate the piston at stroke ends.
Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC80X635S Technical Specifications
| Model | Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC80X635S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 635 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-SC80X635S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×635 | 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-SC80X635S Is Used
Excavator Actuation
Drives auxiliary covers or locking pins on heavy excavation equipment where a 2513 N push force at 0.5 MPa is sufficient.
Concrete Dispenser
Opens and closes discharge gates on cement mixing trucks, relying on the 635mm stroke to achieve full flow clearance.
Crane Outrigger Lock
Engages safety mechanisms on mobile crane outriggers, using the built-in magnet to confirm pin position via barrel sensors.
Is the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC80X635S the Right Cylinder?
This 80mm bore offers a push force of 2513 N at 0.5 MPa. If your heavy equipment application requires less force, stepping down to a 63mm bore yields 1559 N, while moving up to a 100mm bore provides 3927 N at the same pressure. For replacements, match the 80mm bore, 635mm stroke, PT3/8 port, basic mounting, and the S magnet option.
With a 635mm stroke, the unsupported 25mm rod is highly susceptible to bending under side loads. For heavy construction environments, use an external guide rail or a guided cylinder to prevent rod bearing damage and premature wear.
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-SC80X635S FAQ
At 0.5 MPa it provides 2513 N push and 2268 N pull. At the maximum operating pressure of 0.9 MPa, the push force reaches 4523 N.
The B04- prefix indicates this is a construction-machinery dedicated variant of the SC80X635S. It shares the exact same physical specs, 80mm bore, 635mm stroke, and magnet as the standard SC model.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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