Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X350
The AirTAC B04-SC Construction Machinery Special Standard Cylinder B04-SC50X350 is a genuine double-acting standard air cylinder with a Ø50mm bore and 350mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke350 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-SC50X350
The B04-SC50X350 is an AirTAC construction-machinery dedicated double-acting tie-rod cylinder. The B04- prefix designates it as the heavy-equipment variant of the standard SC50X350, meaning it shares the exact same physical specs, 20mm rod, and PT1/4 porting. It delivers a push force of 982 N at 0.5 MPa and 1374 N at 0.7 MPa.
With a 350 mm stroke and a 150 mm body length A, this cylinder provides a total extended length of 500 mm. It features 21 mm adjustable cushions to decelerate the piston at stroke ends. This model uses standard TPU seals for a -20 to +70 C operating range and ships without a magnet or mounting bracket.
Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X350 Technical Specifications
| Model | Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X350 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 350 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-SC50X350
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×350 | 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-SC50X350 Is Used
Excavator Door Actuation
Drives the opening and closing of heavy cab doors on earthmoving equipment, utilizing the 350mm stroke to clear the operator entry area safely.
Concrete Mixer Discharge
Pneumatically positions the discharge chute guide on concrete mixer trucks, relying on 1374 N of push force at 0.7 MPa to move heavy material flows.
Heavy Equipment Latching
Secures and releases heavy latches on construction machinery access panels, using adjustable cushions to prevent slamming in harsh environments.
Is the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X350 the Right Cylinder?
This 50 mm bore provides 982 N push force at 0.5 MPa. If your construction equipment needs less force, the 40 mm bore offers 628 N; for heavier lifting, step up to the 63 mm bore which provides 1559 N. For replacements, match the 50 mm bore, 350 mm stroke, PT1/4 thread, basic mounting, and non-magnet configuration exactly.
At 350 mm stroke, the 20 mm rod experiences increased leverage from side loads. To prevent rod-bearing bending and premature seal wear, use an external guide rail or a guided cylinder to absorb lateral 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-SC50X350 FAQ
The B04- prefix indicates this is an AirTAC construction-machinery dedicated variant of the standard SC50X350 cylinder. It is mechanically identical to the base SC50X350, offering the same 50mm bore, 350mm stroke, and 1374 N push force at 0.7 MPa.
No, this is a double-acting cylinder and does not lock or hold position without live air pressure. The adjustable cushion only decelerates the piston at the end of the stroke. For vertical loads that must be held during pressure loss, an external mechanical lock or pilot-operated check valve 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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