Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X450S
The AirTAC B04-SC Construction Machinery Special Standard Cylinder B04-SC50X450S is a genuine double-acting standard air cylinder with a Ø50mm bore and 450mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke450 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-SC50X450S
The B04-SC50X450S is an AirTAC double-acting tie-rod pneumatic cylinder engineered for construction machinery. The B04- prefix denotes the construction-equipment dedicated variant of the standard SC50X450S, retaining identical mechanical specs including a 50mm bore, 450mm stroke, and a 20mm piston rod.
Operating at 0.7 MPa, this cylinder delivers a push force of 1374 N and a pull force of 825 N. It features a built-in magnetic piston for position sensing, a body length A of 150mm, and adjustable cushions measuring 21mm to protect end-of-stroke components.
Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X450S Technical Specifications
| Model | Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X450S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 450 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-SC50X450S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×450 | 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-SC50X450S Is Used
Excavator Door Actuation
Drives the opening and closing of heavy cab doors on earthmoving equipment, utilizing the 450mm stroke and magnetic piston for reliable position feedback.
Heavy-Duty Clamping
Provides 1374 N of clamping force at 0.7 MPa to secure thick steel plates during welding or drilling operations on construction sites.
Equipment Cover Lifting
Raises and lowers protective engine covers and access hatches on heavy machinery where a durable, tie-rod construction body is required.
Is the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X450S the Right Cylinder?
This 50mm bore provides 982 N of push force at 0.5 MPa. If your heavy-equipment application requires less force, the 40mm bore offers 628 N; for heavier lifting, step up to the 63mm bore which provides 1559 N at 0.5 MPa. When replacing this unit, match the 50mm bore, 450mm stroke, PT1/4 port thread, basic mounting, and the -S magnetic piston option.
With a 450mm stroke, the 20mm rod is susceptible to bending under side loads. For construction machinery handling off-center loads, use an external guide rail or a guided cylinder to prevent rod-bearing damage and premature seal 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-SC50X450S FAQ
The B04- prefix indicates that this SC50X450S cylinder is part of AirTAC's construction-machinery dedicated line. It is mechanically and dimensionally identical to the standard SC50X450S, featuring the same 50mm bore, 450mm stroke, and magnetic piston.
No, the SC series is double-acting and does not lock or hold position without live air pressure. The adjustable cushion only decelerates the piston near the stroke end. For vertical loads, a mechanical lock or external rod brake is required.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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