Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X700
The AirTAC Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X700 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, 700mm stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Rod (both ends)Ø25 mm
- Stroke700 mm
- Port sizePT1/2
- Rod configDouble rod (through)
- CushionAdjustable, 29 mm
About the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X700
The B04-SCD100X700 is an AirTAC construction-machinery dedicated double-rod cylinder, mechanically identical to the standard SCD100X700. The B04- prefix simply flags it for heavy-equipment builders, meaning every physical spec matches the base SCD line. With a 100mm bore and 700mm stroke, it yields 3681 N of thrust each way at 0.5 MPa, ensuring perfectly symmetric push and pull cycles.
A Ø25mm piston rod passes through both end caps, providing dual-side tooling mounting and enhanced anti-rotation stability. The adjustable cushion spans 29mm to softly decelerate the piston at stroke ends. Operating speed ranges from 30-800 mm/s, driven by PT1/2 ports.
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X700 Technical Specifications
| Model | Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X700 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø100 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 700 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-SCD100X700
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 100 | Bore size in mm. |
| ×700 | 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-SCD100X700 Is Used
Excavator Panel Shifting
Equal push and pull force precisely aligns and shifts heavy steel panels on construction machinery without stroke imbalance.
Dual-Tool Shuttle Transfer
The through-rod allows mounting tooling on both ends to alternate between two workstations in heavy-equipment assembly.
Non-Rotating Heavy Pusher
The twin-rod design resists torsional twisting better than a single rod, keeping heavy construction components oriented correctly.
Is the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X700 the Right Cylinder?
This 100mm bore provides 3681 N both ways at 0.5 MPa. Step down to an 80mm bore for 2268 N if the load is lighter, or up to 125mm for 5734 N on heavier construction frames. If you only need one-way actuation, a single-rod SC cylinder saves space, while extreme side loads require a true guided cylinder rather than relying on the through-rod.
With a 700mm stroke, the unsupported rod length is substantial; always use an external guide rail to prevent rod bending under heavy loads. For exact replacements, match the 100mm bore, 700mm stroke, PT1/2 port, basic mounting, and no magnet. The cylinder will drift if air pressure is lost, so fit an external rod brake for any load-holding requirements.
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-SCD100X700 FAQ
The B04- prefix indicates this is a construction-machinery dedicated variant. It is mechanically identical to the standard SCD100X700, offering the same 3681 N equal push/pull force at 0.5 MPa and PT1/2 ports, simply designated for heavy-equipment manufacturing.
The double-rod design provides identical 3681 N force in both directions and allows tooling or a stopper to be mounted on the rear rod. It also offers better anti-rotation resistance than a single-rod cylinder, which is critical for heavy construction-machine actuation.
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