Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC63X120S
The AirTAC B04-SC Construction Machinery Special Standard Cylinder B04-SC63X120S is a genuine double-acting standard air cylinder with a Ø63mm bore and 120mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ63 mm
- Stroke120 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- 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-SC63X120S
The AirTAC B04-SC63X120S is a double-acting tie-rod pneumatic cylinder engineered for heavy-equipment builders. The B04- prefix designates this as a construction-machinery dedicated variant of the standard SC63X120S, meaning it is mechanically identical to the base model but targeted for demanding industry applications.
Delivering a push force of 2182 N at 0.7 MPa, this 63 mm bore unit features a 120 mm stroke and a built-in magnet for position sensing. It incorporates a 20 mm piston rod, PT1/4 ports, and 28 mm adjustable cushions to decelerate the piston at stroke ends, ensuring reliable actuation on site.
Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC63X120S Technical Specifications
| Model | Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC63X120S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke | 120 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, 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (approx.) | 318 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-SC63X120S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×120 | 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-SC63X120S Is Used
Excavator Doors
Actuates heavy cab doors and access panels on earthmoving equipment, utilizing the built-in magnet to confirm secure closure.
Boom Locking Mechanisms
Drives secondary safety locks and pin extractors on heavy machinery booms where 2182 N of thrust at 0.7 MPa is required.
Heavy-Duty Flaps
Operates external dust flaps and deflector panels on construction vehicles, benefiting from adjustable cushions to soften impact.
Is the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC63X120S the Right Cylinder?
This 63 mm bore provides substantial thrust for heavy frames; stepping down to a 50 mm bore drops the 0.5 MPa push force to 982 N, while stepping up to an 80 mm bore increases it to 2513 N. Always match the exact bore, stroke, port thread, mounting accessory, and magnet option when sourcing a replacement.
For a 120 mm stroke on a 20 mm rod, side-load bending is minimal, but heavy construction environments often involve shock loads. Ensure external guides are used to prevent rod-bearing damage if the mechanism is subjected to off-center forces.
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-SC63X120S FAQ
The B04- prefix indicates this is a construction-machinery dedicated variant of the SC63X120S. It is mechanically identical to the standard AirTAC SC cylinder, offering the same 63 mm bore, 120 mm stroke, and 2182 N push force at 0.7 MPa, but is designated for heavy-equipment applications.
No, this is a double-acting pneumatic cylinder and cannot hold a load without live air pressure. The adjustable cushion only decelerates the piston at the end of the stroke; a mechanical lock or external pilot-operated check valve is required to maintain position.
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.
Request a Quote for Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC63X120S
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