Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X200
The AirTAC Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X200 is a genuine double-acting DOUBLE-ROD air cylinder: the Ø25mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø100mm bore, 200mm stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Rod (both ends)Ø25 mm
- Stroke200 mm
- Port sizePT1/2
- Rod configDouble rod (through)
- CushionAdjustable, 29 mm
About the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X200
The B04-SCD100X200 is an AirTAC construction-machinery dedicated double-acting double-rod cylinder. The B04- prefix denotes a heavy-equipment industry designation, meaning it is mechanically identical to the standard SCD100X200. It uses a 100 mm bore and 200 mm stroke, generating an identical 3681 N of thrust in both directions at 0.5 MPa because the 25 mm rod passes through both end caps.
This symmetric design is perfect for dual-tooling or non-rotating pushers on heavy machinery. The cylinder features a 29 mm adjustable cushion at both ends to decelerate the piston smoothly. Its overall retracted length is based on the 263 mm body length A(SCD), which is longer than a single-rod SC variant due to the protruding rear rod.
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X200 Technical Specifications
| Model | Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X200 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø100 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 200 mm |
| Rod configuration | Double rod — rod through both caps |
| 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 SCD (double-rod) datasheet. Because the rod runs through both caps, the effective area is (bore² − rod²) in both directions. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø100mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | 5154 N |
| Max (@1.0 MPa) | 751 kgf | |
Push and pull are EQUAL on a double-rod cylinder — both chambers lose the rod area, so effective area = (bore² − rod²) each way. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
Model Code: Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X200
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 100 | Bore size in mm. |
| ×200 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod), SCJ (adjustable stroke), SCT (multi-position). SCD mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X200 Is Used
Excavator Control Links
Drives symmetric positioning links on heavy equipment where equal push and pull force prevents linkage binding under varying hydraulic pressures.
Shuttle Material Transfer
Moves parts between two stations on a construction vehicle assembly line, using both rod ends to carry opposing tooling simultaneously.
Non-Rotating Heavy Pushers
Pushes heavy structural components straight off a conveyor. The dual-rod design provides better anti-rotation stability than a single rod.
Is the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X200 the Right Cylinder?
Select this 100 mm bore when an application requires 3681 N of force both ways at 0.5 MPa. If your build needs less thrust, stepping down to the 80 mm bore yields 2268 N each way. For jobs requiring more power, the 125 mm bore offers 5734 N. If you only need force in one direction and want a shorter body, a single-rod SC cylinder is a better fit.
To replace this unit, match the 100 mm bore, 200 mm stroke, PT1/2 port thread, basic mounting, and lack of a magnetic sensor. Because the 200 mm stroke is relatively short, side-load bending on the unsupported rod is minimal, but external guides are still recommended if absorbing heavy lateral impacts on site.
Double-rod checklist
- ✓ Need equal force / speed both directions?
- ✓ Rear rod for tooling, stopper or sensor flag?
- ✓ Better rod guidance / anti-rotation?
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Keep BOTH rod ends clear of side load and interference.
- check Adjust end cushion screws for smooth stops.
- check Use SCD mounting accessory (FA / LB / TC / TCM1).
- check Installation by qualified personnel per AirTAC docs.
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X200 FAQ
The B04- prefix indicates this is a construction-machinery dedicated variant of the SCD100X200. It is mechanically identical to the base model, offering the same 100 mm bore, 200 mm stroke, and 3681 N equal push/pull force at 0.5 MPa.
Yes, it equalizes it. Because the 25 mm rod extends through both ends, the effective area is identical in both directions. This cylinder outputs 3681 N of push and pull force at 0.5 MPa, and 6626 N at 0.9 MPa.
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