Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X200S
The AirTAC Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X200S 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-SCD100X200S
The B04-SCD100X200S is AirTAC's construction-machinery dedicated double-rod cylinder, mechanically identical to the standard SCD100X200S. The B04- prefix simply designates its fulfillment within the heavy-equipment builder channel without altering any physical specs. A 100mm bore and 200mm stroke yield a massive 3681 N of thrust each way at 0.5 MPa, climbing to 6626 N at 0.9 MPa.
Because the Ø25mm piston rod passes through both end caps, the effective pressure area is identical on both sides. This guarantees equal push and pull forces along with superior rod guidance. The included S suffix means a built-in magnet is fitted, allowing CMSG or DMSG sensors to track position. Adjustable cushions at both ends provide 29mm of deceleration to protect heavy tooling from impact.
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X200S Technical Specifications
| Model | Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X200S |
|---|---|
| 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-SCD100X200S
| 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-SCD100X200S Is Used
Excavator Control Linkages
Drives symmetric push-pull linkages in heavy equipment cabins where equal force both ways prevents linkage binding under high pressure.
Bidirectional Material Shuttles
Moves heavy construction components between stations with tooling mounted on both rod ends for simultaneous dual-side actuation.
Non-Rotating Heavy Pushers
Handles large molded parts or machinery panels where the dual-rod design resists torsional twist better than a single rod.
Is the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X200S the Right Cylinder?
Select this 100mm bore when an application demands high bidirectional force (3681 N at 0.5 MPa) and anti-rotation stability. If your mechanism only requires force in one direction, a single-rod SC100X200 is lighter and shorter. For heavy side loads, remember that a through rod improves guidance but cannot replace a true guided cylinder.
When replacing this unit, match the 100mm bore, 200mm stroke, PT1/2 port thread, and the -S magnet option. At 200mm stroke, side loading is moderate; ensure external guides support the load if the rod is subjected to bending moments. This construction-machinery variant uses the exact same TPU seals (-20 to +70 C) and basic mounting as the base model.
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-SCD100X200S FAQ
The B04- prefix indicates this is a construction-machinery dedicated variant of the standard AirTAC SCD100X200S. It is mechanically identical to the base model, offering the same 100mm bore, 200mm stroke, and 3681 N equal push/pull force at 0.5 MPa.
The double-rod design provides identical push and pull forces (3681 N at 0.5 MPa) because the rod area is subtracted on both sides. It also offers better anti-rotation stability and allows tooling or a sensor flag to be mounted on the rear rod, which a single-rod SC cylinder cannot do.
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