Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X800S
The AirTAC B04-SC Construction Machinery Special Standard Cylinder B04-SC50X800S is a genuine double-acting standard air cylinder with a Ø50mm bore and 800mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke800 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 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-SC50X800S
The B04-SC50X800S is an AirTAC double-acting tie-rod cylinder engineered for construction machinery. The B04- prefix marks it as a construction-dedicated variant of the SC50X800S, meaning it shares the exact same physical specs as the standard model. It delivers a push force of 982 N at 0.5 MPa and 1767 N at 0.9 MPa.
Featuring a 50mm bore and 800mm stroke, this unit includes a built-in magnet for position sensing. It uses a PT1/4 port, a 20mm piston rod, and has a body length A of 150mm. The adjustable cushion length is 21mm, ensuring controlled deceleration at stroke ends.
Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X800S Technical Specifications
| Model | Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X800S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 800 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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, 21 mm |
| Max stroke | Up to 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (approx.) | 200 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-SC50X800S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×800 | 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-SC50X800S Is Used
Excavator Accessory Actuation
Drives auxiliary covers or locking pins on heavy construction equipment where a 982 N push force at 0.5 MPa is sufficient.
Concrete Pump Positioning
Shifts discharge chutes or guide baffles over an 800mm travel distance, relying on the built-in magnet to confirm end-of-stroke placement.
Material Handler Gates
Opens and closes heavy sorting gates on quarry and site material handlers, utilizing the 21mm adjustable cushion to soften impact.
Is the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X800S the Right Cylinder?
At 0.5 MPa this 50mm bore generates 982 N of push force. If your heavy-equipment application requires less force, stepping down to a 40mm bore yields 628 N. If you need more power, a 63mm bore provides 1559 N. Because the stroke is 800mm, the unsupported 20mm rod is highly susceptible to bending under side loads.
For replacements, match the 50mm bore, 800mm stroke, PT1/4 thread, basic mounting, and the -S magnet option. To manage the long 800mm extension, 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-SC50X800S FAQ
The B04- prefix indicates this is an AirTAC construction-machinery dedicated variant of the standard SC50X800S. It is mechanically identical to the base model, offering the same 50mm bore, 800mm stroke, 20mm rod, and 1767 N thrust at 0.9 MPa.
The SC series is a tie-rod cylinder and does not inherently guide side loads. With an 800mm stroke, the 20mm rod can bend if subjected to lateral forces. You must use an external guide mechanism to support the load and protect the rod bearing.
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Covers non-human-caused product damage.
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