Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD80X1000S
The AirTAC Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD80X1000S 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. Ø80mm bore, 1000mm stroke, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Rod (both ends)Ø25 mm
- Stroke1000 mm
- Port sizePT3/8
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD80X1000S
The B04-SCD80X1000S is an AirTAC double-acting, double-rod pneumatic cylinder engineered for construction machinery. The B04- prefix denotes the construction-machinery dedicated variant, mechanically identical to the standard SCD80X1000S. It features a 1000mm stroke and a built-in magnet for barrel-mounted position sensing.
Because the piston rod passes through both end caps, the effective area is identical in both chambers, yielding an equal push and pull force of 2268N at 0.5 MPa and 4082N at 0.9 MPa. The Ø25mm rods thread M20x1.5, and the cylinder body length A(SCD) is 257mm. Adjustable cushions at 28mm decelerate the piston at stroke ends.
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD80X1000S Technical Specifications
| Model | Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD80X1000S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø80 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 1000 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT3/8 |
| 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, 28 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 (Ø80mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | 3175 N |
| Max (@1.0 MPa) | 463 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-SCD80X1000S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 80 | Bore size in mm. |
| ×1000 | 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-SCD80X1000S Is Used
Heavy Equipment Actuation
Drives symmetric pushing and pulling mechanisms on construction machinery where equal force both ways prevents linkage binding.
Shuttle Transfer Tables
Moves materials back and forth on heavy-duty transfer lines, utilizing the rear rod for external stopper mounting.
Non-Rotating Tooling
Carries dual tooling or sensor flags on both rod ends, improving anti-rotation stability over single-rod actuators.
Is the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD80X1000S the Right Cylinder?
Choose this 80mm bore when an application demands 2268N of thrust in both directions over a 1000mm span. If less force is needed, stepping down to a 63mm bore provides 1402N at 0.5 MPa, while a 100mm bore offers 3681N for heavier loads. For applications requiring position holding without air pressure, a mechanical lock or external brake is necessary, as pneumatic cushions only decelerate the piston.
At 1000mm of stroke, the unsupported rod is highly susceptible to bending under side loads; use an external guide rail or a dedicated guided cylinder to prevent rod damage. To replace this unit, match the 80mm bore, 1000mm stroke, PT3/8 port thread, basic mounting style, and the -S magnetic sensor option.
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-SCD80X1000S FAQ
The B04- prefix indicates this cylinder is part of AirTAC's construction-machinery dedicated line. It is mechanically identical to the SCD80X1000S, offering the same 80mm bore, 1000mm stroke, and double-rod configuration.
Because it is a double-rod cylinder, the push and pull forces are equal. It generates 2268N of force at 0.5 MPa and 4082N at 0.9 MPa in both directions.
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