Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X600
The AirTAC Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X600 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, 600mm stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Rod (both ends)Ø25 mm
- Stroke600 mm
- Port sizePT1/2
- Rod configDouble rod (through)
- CushionAdjustable, 29 mm
About the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X600
The B04-SCD100X600 is AirTAC's construction-machinery dedicated variant of the SCD100X600 double-acting, double-rod cylinder. The B04- prefix designates it for heavy-equipment builders, but mechanically it is identical to the standard model. A Ø25 mm piston rod passes through both end caps, yielding identical thrust in both directions at 3681 N each way under 0.5 MPa, and 6626 N at 0.9 MPa.
With a 600 mm stroke, this unit provides extended travel for large displacement tasks. It features adjustable cushions with a 29 mm length to decelerate the piston near the ends. The basic body length A(SCD) is 263 mm, making the overall retracted package longer than a single-rod SC cylinder. It uses PT1/2 ports and operates at speeds of 30-800 mm/s.
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X600 Technical Specifications
| Model | Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X600 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø100 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 600 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-SCD100X600
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 100 | Bore size in mm. |
| ×600 | 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-SCD100X600 Is Used
Excavator Actuation
Drives heavy auxiliary mechanisms on earthmoving equipment where the B04 construction-machinery prefix ensures fitment for rugged environments.
Bidirectional Shuttle
Moves large workpieces between machining stations with equal force and speed in both directions using dual-end tooling.
Long-Stroke Positioning
Provides 600 mm of travel for extending and retracting heavy gates or platforms with symmetric loading on the bearings.
Is the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X600 the Right Cylinder?
This 100 mm bore is appropriate when substantial bidirectional force is required. If your application needs less thrust, stepping down to an 80 mm bore yields 2268 N at 0.5 MPa. If you only need unidirectional pushing, a single-rod SC100 cylinder saves space and weight. For heavy side loads over the 600 mm stroke, a dedicated guided cylinder is superior, as the through rod improves guidance but cannot replace external linear bearings.
When specifying a replacement, match the 100 mm bore, 600 mm stroke, PT1/2 port thread, basic mounting, and confirm whether a magnetic piston (-S) is required. The 600 mm stroke is within the 1500 mm standard limit for this bore. Note that on long strokes, the unsupported rod is susceptible to bending under lateral loads, so external guides or a load-support rail should be used to prevent rod damage.
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-SCD100X600 FAQ
The B04- prefix indicates this is AirTAC's construction-machinery dedicated line. The B04-SCD100X600 is mechanically identical to the standard SCD100X600, offering the same 100 mm bore, 600 mm stroke, and 3681 N equal push/pull force at 0.5 MPa.
No. The adjustable cushions only decelerate the piston near the stroke ends. If the load must be held in place when air pressure is lost, a mechanical lock, external rod brake, or pilot-operated check valve must be installed separately.
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