Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X25S
The AirTAC B04-SC Construction Machinery Special Standard Cylinder B04-SC50X25S is a genuine double-acting standard air cylinder with a Ø50mm bore and 25mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke25 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-SC50X25S
The B04-SC50X25S is AirTAC's construction-machinery dedicated variant of the standard SC50X25S tie-rod cylinder. The B04- prefix designates its application in heavy equipment, though it remains mechanically identical to the base model. This double-acting pneumatic cylinder provides 982 N of push force at 0.5 MPa and 825 N of pull force.
Featuring a short 25 mm stroke and a 150 mm body length A, it is built for compact actuation on machinery. The built-in S suffix magnet allows CMSG/DMSG/EMSG sensors to clamp directly onto the barrel for position detection. It uses a 20 mm rod, a PT1/4 port, and 21 mm adjustable cushions to soften end-of-stroke impact.
Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X25S Technical Specifications
| Model | Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X25S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 25 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-SC50X25S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×25 | 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-SC50X25S Is Used
Heavy Equipment Gates
Ideal for short-trroke actuation of access panels and inspection gates on excavators and loaders where a 982 N push force is sufficient.
Machine Tool Clamping
Provides reliable 25 mm clamping strokes on heavy-duty machining centers, utilizing the built-in magnet for precise end-position confirmation.
Ag Equipment Diverters
Drives compact diverter valves and flap mechanisms on tractors and combines, benefiting from the 0.15-1.0 MPa operating pressure range.
Is the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X25S the Right Cylinder?
This 50 mm bore is a strong middle ground, stepping up from the 40 mm bore (628 N push at 0.5 MPa) or down from the 63 mm bore (1559 N push at 0.5 MPa) depending on your space constraints. Because the stroke is only 25 mm, side-load stress on the rod bearing is minimal compared to longer strokes.
When replacing this unit, match these five points exactly: 50 mm bore, 25 mm stroke, PT1/4 port thread, basic mounting (no bracket), and the built-in magnet (-S). This AirTAC tie-rod cylinder is shorter than an ISO 15552 profile cylinder and is not dimensionally interchangeable with that standard.
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-SC50X25S FAQ
The B04- prefix indicates this is AirTAC's construction-machinery dedicated line. It is mechanically identical to the standard SC50X25S, offering the same 982 N push force at 0.5 MPa, 20 mm rod, and PT1/4 port, but is designated for heavy-equipment builders.
No, the SC series is double-acting and cannot hold position without live air pressure. The adjustable cushion only decelerates the piston near the stroke end; a mechanical lock or external brake is required to hold a load safely.
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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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