Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X25
The AirTAC Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X25 is a genuine double-acting standard air cylinder with a Ø100mm bore and 25mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ100 mm
- Stroke25 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X25
The B04-SC100X25 is AirTAC's construction-machinery dedicated variant of the standard SC100X25 tie-rod cylinder. The B04- prefix designates it for heavy-equipment builders, but mechanically it is identical to the base SC model, offering a 100mm bore and a compact 25mm stroke. This double-acting pneumatic cylinder delivers a robust 3927 N of push force at 0.5 MPa and up to 7068 N at 0.9 MPa.
It features a 25mm piston rod, PT1/2 port threads, and 29mm adjustable cushions to decelerate the piston at stroke ends. With a body length A of 188mm, the total extended length is approximately 213mm. The standard TPU seals operate reliably between -20 and +70 C, making it well-suited for demanding off-highway environments.
Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X25 Technical Specifications
| Model | Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X25 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| 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, 29 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (approx.) | 801 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-SC100X25
| SC | Standard tie-rod cylinder series. |
|---|---|
| 100 | 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-SC100X25 Is Used
Excavator Accessory Actuation
Drives heavy secondary attachments or covers on earthmoving equipment where high force and short movement are required.
Heavy-Duty Clamping
Secures large structural components or thick steel plates during welding or machining on construction fabrications.
Equipment Door Latching
Locks and releases heavy inspection hatches or hopper doors on mobile agricultural and construction machinery.
Is the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC100X25 the Right Cylinder?
This 100mm bore provides massive thrust for heavy lifting gates or redirecting large mechanical components on machinery. If you need slightly less force, stepping down to an 80mm bore yields 2513 N at 0.5 MPa. Because the 25mm stroke is very short, rod-bearing bending is not a concern here, but always ensure the load is axially aligned to prevent side-load wear.
When specifying a replacement, match these five points exactly: 100mm bore, 25mm stroke, PT1/2 port thread, basic mounting (no bracket), and no built-in magnet. This unit is a tie-rod cylinder, which is shorter than an ISO 15552 profile and not dimensionally interchangeable with it.
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-SC100X25 FAQ
The B04- prefix indicates this is AirTAC's construction-machinery dedicated line. The B04-SC100X25 is mechanically and dimensionally identical to the standard SC100X25, featuring the exact same 100mm bore, 25mm stroke, and PT1/2 port.
At 0.5 MPa it provides 3927 N of push force and 3681 N of pull force. At its maximum operating pressure of 0.9 MPa, the push force increases to 7068 N.
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