Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X100
The AirTAC Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X100 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, 100mm stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Rod (both ends)Ø12 mm
- Stroke100 mm
- Port sizePT1/8
- Rod configDouble rod (through)
- CushionAdjustable, 21 mm
About the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X100
The B04-SCD32X100 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 SCD32X100. Because the rod area is subtracted on both sides, it delivers an identical push and pull force of 345 N at 0.5 MPa.
Featuring a 12 mm rod on both ends and PT1/8 ports, this 32 mm bore unit provides symmetric bearing loading and better anti-rotation characteristics than a single-rod cylinder. The 100 mm stroke is well within the 1000 mm maximum for this bore, and the adjustable cushions provide 21 mm of end-of-stroke deceleration to protect your tooling.
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X100 Technical Specifications
| Model | Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X100 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø32 mm |
| Rod diameter | Ø12 mm (both ends) |
| Stroke | 100 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-SCD32X100
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 32 | 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-SCD32X100 Is Used
Excavator Panel Shuttling
Equal push and pull thrust is ideal for shuttle mechanisms that transfer control panels or components on heavy machinery.
Two-Sided Actuation
The through-rod design allows mounting tooling on both ends, enabling simultaneous dual-side pushing or clamping tasks.
Non-Rotating Pusher
Dual rods provide better guidance and resist twisting compared to single-rod cylinders, ensuring straight pushes in tight equipment bays.
Is the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X100 the Right Cylinder?
Choose this 32 mm bore when you need compact, equal-force actuation in both directions, such as shuttling or two-sided pressing on heavy equipment. If your application requires less force, stepping down is not an option in the SCD range, but stepping up to a 40 mm bore yields 528 N at 0.5 MPa. If you do not need rear-rod tooling or symmetric thrust, a standard single-rod AirTAC SC32X100 is lighter and shorter.
For replacement, match the 32 mm bore, 100 mm stroke, PT thread, basic mounting, and confirm whether a magnetic piston (-S) is required. Note that the adjustable air cushion only decelerates the piston near stroke end; it does not lock or hold the load. If your construction machinery must hold a load without live air pressure, you must use an external mechanical lock or pilot-operated check valve.
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-SCD32X100 FAQ
The B04- prefix indicates this is an AirTAC construction-machinery dedicated variant. It is mechanically identical to the standard SCD32X100 double-rod cylinder, offering the same 345 N equal push/pull force at 0.5 MPa and PT1/8 ports.
A double-rod cylinder provides identical force and speed in both directions because the rod area is subtracted from both chambers. It also offers a rear rod for mounting a stopper or sensor flag, and provides better anti-rotation resistance than a single-rod cylinder.
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