Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X225
The AirTAC Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X225 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, 225mm stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Rod (both ends)Ø25 mm
- Stroke225 mm
- Port sizePT1/2
- Rod configDouble rod (through)
- CushionAdjustable, 29 mm
About the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X225
The B04-SCD100X225 is AirTAC's construction-machinery dedicated variant of the standard SCD100X225 double-rod cylinder. The B04- prefix designates it for heavy-equipment builders, but mechanically it matches the base SCD specs exactly. It provides 3681 N of equal push and pull force at 0.5 MPa, stepping up to 6626 N at its 0.9 MPa maximum operating pressure.
Because the Ø25 piston rod passes through both end caps, the effective pressure area is identical in both chambers. This through-rod design gives you a rear extension for mounting a stopper, secondary tooling, or a sensor flag, while symmetrically loading the bearings. The cylinder features a 29 mm adjustable cushion on both ends to decelerate the piston near stroke limits.
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X225 Technical Specifications
| Model | Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X225 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø100 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 225 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-SCD100X225
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 100 | Bore size in mm. |
| ×225 | 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-SCD100X225 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 parts back and forth on an assembly line with equal force and speed in both directions, utilizing the dual-end rod for mounting stops.
Non-Rotating Pushers
Handles workpieces requiring higher thrust (3681 N at 0.5 MPa) where the extended rear rod provides better guidance than a single-rod actuator.
Is the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X225 the Right Cylinder?
Choose this 100 mm bore when you need substantially more thrust than a 63 mm bore (1402 N at 0.5 MPa) but want to avoid the bulk of a 125 mm body (5734 N). If your mechanism only requires force in one direction and rear tooling is unnecessary, a single-rod AirTAC SC cylinder is a lighter, more compact alternative. For loads demanding precise anti-rotation under heavy side force, a dedicated guided cylinder is recommended over relying solely on the through-rod.
At 225 mm of travel, the unsupported rod length requires careful attention to side-load bending. Use external guides to support the load. To replace this unit, match the 100 mm bore, 225 mm stroke, PT1/2 port thread, basic mounting style, and confirm whether a magnetic piston (-S) is needed. Note that air pressure does not hold the load when the valve is centered; a mechanical lock is required for dead-load holding.
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-SCD100X225 FAQ
The B04- prefix indicates this is AirTAC's construction-machinery dedicated line. It is mechanically identical to the standard SCD100X225 double-rod cylinder, offering the same 3681 N equal push/pull force at 0.5 MPa and PT1/2 porting.
A double-rod cylinder provides identical push and pull forces because the rod area is subtracted from both chambers. It also offers a rear rod extension for mounting tooling or sensors, better anti-rotation resistance, and symmetric bearing loading compared to a single-rod SC cylinder.
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