Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X75S
The AirTAC Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X75S 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, 75mm stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Rod (both ends)Ø12 mm
- Stroke75 mm
- Port sizePT1/8
- Rod configDouble rod (through)
- CushionAdjustable, 21 mm
About the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X75S
The B04-SCD32X75S is an AirTAC double-acting, double-rod cylinder where the piston rod passes through both end caps. The B04- prefix designates this as a construction-machinery dedicated variant, mechanically identical to the standard SCD32X75S. Because the rod area is subtracted on both sides, it generates an identical 483 N of push and pull force at 0.7 MPa.
Featuring a 12 mm diameter rod protruding from both ends and a 75 mm stroke, this unit provides excellent anti-rotation characteristics and symmetric bearing loading. It includes a built-in magnet (the S suffix) allowing CMSG or DMSG sensors to track position along the 187 mm body. The adjustable cushions provide 21 mm of end-of-stroke deceleration to protect your machinery.
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X75S Technical Specifications
| Model | Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X75S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø32 mm |
| Rod diameter | Ø12 mm (both ends) |
| Stroke | 75 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-SCD32X75S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 32 | Bore size in mm. |
| ×75 | 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-SCD32X75S Is Used
Excavator Control Panels
Actuates dual-sided pusher mechanisms in heavy-equipment cabins, using the through-rod to operate a secondary latch while maintaining equal force both ways.
Shuttle Diverters
Drives compact transfer shuttles on construction-material processing lines, utilizing the rear rod extension to mount a physical stopper block.
Non-Rotating Tooling
Handles two-sided clamping tasks where the extended rear rod carries a sensor flag, ensuring precise position verification for sequential operations.
Is the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X75S the Right Cylinder?
Choose this 32 mm bore when an application requires 483 N of force in both directions within a compact footprint. If your project needs less thrust, stepping down is not an option in this series, but moving up to a 40 mm bore yields 739 N. If you only need force in one direction and want a shorter body, the single-rod SC32X75S is a better fit. For heavy side loads, a guided cylinder is recommended over relying on the through-rod alone.
To replace this cylinder, match the 32 mm bore, 75 mm stroke, PT1/8 port thread, basic mounting, and the built-in magnet. The B04- designation does not alter any physical specifications, so a standard SCD32X75S serves as a direct dimensional equivalent.
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-SCD32X75S FAQ
The B04- prefix indicates this cylinder is part of AirTAC's construction-machinery dedicated line. It is mechanically and dimensionally identical to the standard SCD32X75S, featuring the same 32 mm bore, 75 mm stroke, and 483 N equal push/pull force at 0.7 MPa.
Yes, because the rod occupies space on both sides of the piston, the effective area is identical in both directions. This cylinder outputs exactly 483 N of thrust and 483 N of pull force at 0.7 MPa, unlike a single-rod cylinder which has a weaker pull force.
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