Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X225S
The AirTAC Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X225S is a genuine double-acting DOUBLE-ROD air cylinder: the Ø12mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø32mm bore, 225mm stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Rod (both ends)Ø12 mm
- Stroke225 mm
- Port sizePT1/8
- Rod configDouble rod (through)
- CushionAdjustable, 21 mm
About the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X225S
The AirTAC B04-SCD32X225S is a double-acting, double-rod pneumatic cylinder engineered for construction machinery. The B04- prefix designates this as a construction-machinery dedicated variant of the standard SCD32X225S, meaning it is mechanically identical to the base model but targeted at heavy-equipment builders. It features a 32 mm bore and a 225 mm stroke.
Because the piston rod passes through both end caps, the effective area is identical in both chambers. This yields an equal push and pull force of 483 N at 0.7 MPa, rising to 621 N at 0.9 MPa. The twin 12 mm rods provide enhanced guidance and anti-rotation properties. A built-in magnet is included, allowing CMSG, DMSG, or EMSG sensors to track piston position along the 187 mm body length.
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X225S Technical Specifications
| Model | Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X225S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø32 mm |
| Rod diameter | Ø12 mm (both ends) |
| Stroke | 225 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
| 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, 21 mm |
| Max stroke | Up to 1000 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 (Ø32mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 346 N | 346 N |
| 0.7 MPa | 484 N | 484 N |
| Max (@1.0 MPa) | 70 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-SCD32X225S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 32 | 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-SCD32X225S Is Used
Heavy Equipment Actuation
Drives symmetric push-pull mechanisms on construction machinery where equal force and non-rotating tooling mounts are required on both ends of the cylinder.
Shuttle Transfer
Moves parts back and forth on an assembly line using the dual rods to carry a rear stopper or secondary actuator, ensuring stable two-sided operation.
Magnetic Position Sensing
Utilizes the built-in magnet with CMSG or DMSG reed sensors to confirm end-of-stroke positions in automated machinery control loops.
Is the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X225S the Right Cylinder?
This 32 mm bore provides 345 N of force each way at 0.5 MPa. If your application requires less thrust, stepping down is not an option within this series, but if you need significantly more power, consider the 40 mm bore which outputs 528 N at 0.5 MPa. If you do not need rear-side tooling or equal bi-directional force, a standard single-rod AirTAC SC cylinder will save space and weight. For loads requiring strict linear precision under high side-load, a dedicated guided cylinder is recommended over relying solely on the through-rod guidance.
When replacing this unit, match five critical points: the 32 mm bore, 225 mm stroke, PT1/8 port thread, basic mounting style (no bracket), and the built-in magnet (-S suffix). The 225 mm stroke is a standard length for this bore, which supports strokes up to 1000 mm. Because the stroke exceeds 300 mm, ensure adequate external support to prevent rod bending on the long unsupported extension.
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-SCD32X225S FAQ
The B04- prefix indicates this is an AirTAC construction-machinery dedicated variant. It is mechanically identical to the standard SCD32X225S double-rod cylinder, offering the same 32 mm bore, 225 mm stroke, and 483 N equal push/pull force at 0.7 MPa.
A double-rod cylinder provides identical push and pull forces because the rod area is subtracted from both sides. It also offers better anti-rotation characteristics and allows tooling or sensors to be mounted on the rear rod extension, which a single-rod cylinder cannot do.
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