Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X100
The AirTAC Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X100 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, 100mm stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Rod (both ends)Ø25 mm
- Stroke100 mm
- Port sizePT1/2
- Rod configDouble rod (through)
- CushionAdjustable, 29 mm
About the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X100
The B04-SCD100X100 is AirTAC's construction-machinery dedicated variant of the standard SCD100X100 double-acting, double-rod cylinder. The B04- prefix designates it for heavy-equipment builders, but mechanically it is identical to the base model. It features a 100mm bore and 100mm stroke, using a Ø25mm piston rod that passes through both end caps.
Because the rod occupies both chambers, the effective pressure area is equal in both directions. This yields an identical push and pull force of 5153 N at 0.7 MPa, and 6626 N at the 0.9 MPa maximum operating pressure. The unit includes adjustable cushions with a 29mm length and a body length A(SCD) of 263mm.
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X100 Technical Specifications
| Model | Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X100 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø100 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 100 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-SCD100X100
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 100 | Bore size in mm. |
| ×100 | 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-SCD100X100 Is Used
Heavy Equipment Actuation
Drives symmetric pushing and pulling mechanisms on construction machinery where the B04- prefix indicates dedicated heavy-equipment suitability.
Shuttle Transfer Tables
Moves pallets or parts equally well in both directions with 5153 N force at 0.7 MPa, using the rear rod for counterweights or stops.
Non-Rotating Tooling Pushers
Carries tooling on both rod ends to actuate from either side, leveraging the double-rod design for better anti-rotation stability.
Is the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X100 the Right Cylinder?
Choose this 100mm bore when an application requires substantial equal thrust in both directions, such as 5153 N at 0.7 MPa. If your mechanism only needs force in one direction, a single-rod SC cylinder is lighter and shorter. If the load involves heavy side force, a dedicated guided cylinder provides better support than a through rod.
To replace this unit, match the 100mm bore, 100mm stroke, PT1/2 port thread, basic mounting, and no magnet. Note that while the through rod adds guidance over a single rod, it is not a substitute for a true guided cylinder under high side loads.
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-SCD100X100 FAQ
The B04- prefix marks this as AirTAC's construction-machinery dedicated variant. It is mechanically identical to the standard SCD100X100, offering the same 100mm bore, 100mm stroke, and 5153 N equal push/pull force at 0.7 MPa.
Yes. Because the Ø25mm rod protrudes from both ends, the effective area is identical in both chambers. It generates 3681 N at 0.5 MPa and 6626 N at 0.9 MPa in both the push and pull directions.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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