Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X25
The AirTAC Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X25 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, 25mm stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Rod (both ends)Ø12 mm
- Stroke25 mm
- Port sizePT1/8
- Rod configDouble rod (through)
- CushionAdjustable, 21 mm
About the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X25
The B04-SCD32X25 is AirTAC's construction-machinery dedicated variant of the SCD32X25 double-acting, double-rod cylinder. The B04- prefix designates it for heavy-equipment builders, but mechanically it matches the base SCD exactly, offering identical specs. A 12 mm rod protrudes from both end caps, yielding 483 N of thrust in both directions at 0.7 MPa.
With a short 25 mm stroke and a 187 mm body length A(SCD), this compact unit fits tight machinery envelopes. The through-rod design provides symmetrical bearing loading and superior anti-rotation characteristics compared to a single-rod cylinder. Adjustable cushions at both ends decelerate the piston near stroke ends.
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X25 Technical Specifications
| Model | Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X25 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø32 mm |
| Rod diameter | Ø12 mm (both ends) |
| Stroke | 25 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-SCD32X25
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 32 | Bore size in mm. |
| ×25 | 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-SCD32X25 Is Used
Excavator Control Linkages
Drives short-stroke pilot valves or small linkages in compact construction equipment where equal push and pull force is mandatory.
Shuttle Diverters
Mounts rear tooling or a stopper flag on the opposing rod end to actuate a secondary mechanism simultaneously.
Non-Rotating Pushers
The dual-rod guidance resists torsional twist better than a single rod, ensuring precise alignment for heavy-equipment panel indexing.
Is the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X25 the Right Cylinder?
Choose this 32 mm bore when you need 483 N of equal bidirectional force in a tight space. If your application requires less than 345 N at 0.5 MPa, consider a smaller bore to save weight and air consumption. If you only need force in one direction, a single-rod SC cylinder is more cost-effective.
For replacement, match the 32 mm bore, 25 mm stroke, PT1/8 port thread, basic mounting, and confirm whether a magnetic piston (-S) is required. Because the stroke is only 25 mm, side-load stress on the rod is minimal, but always ensure the load is axially aligned to maximize bearing life.
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-SCD32X25 FAQ
The B04- prefix indicates this cylinder is part of AirTAC's construction-machinery dedicated line. It is mechanically identical to the standard SCD32X25, offering the same 32 mm bore, 25 mm stroke, and 483 N equal push/pull force at 0.7 MPa.
Yes, because the rod occupies volume on both sides of the piston, the effective area is identical in both directions. This means push and pull forces are exactly equal, providing 483 N at 0.7 MPa and 621 N at 0.9 MPa.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SCD Double-Rod Cylinders
Request a Quote for Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD32X25
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.