Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X700S
The AirTAC Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X700S is a genuine double-acting DOUBLE-ROD air cylinder: the Ø20mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø63mm bore, 700mm stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Rod (both ends)Ø20 mm
- Stroke700 mm
- Port sizePT1/4
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X700S
The B04-SCD63X700S is AirTAC's construction-machinery dedicated variant of the SCD63X700S double-rod cylinder. The B04- prefix designates it for heavy-equipment builders, but mechanically it is identical to the standard SCD model, featuring a 63 mm bore and 700 mm stroke. 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 1402 N at 0.5 MPa.
This through-rod design provides superior anti-rotation characteristics and allows tooling to be mounted on the rear rod. The Ø20 mm rod protrudes from both ends, and the cylinder includes adjustable cushions with a 28 mm length to decelerate the piston smoothly. The built-in magnet (indicated by the S suffix) enables CMSG, DMSG, or EMSG sensors to track position along the 210 mm body length A(SCD).
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X700S Technical Specifications
| Model | Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X700S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø63 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 700 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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 (Ø63mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1402 N | 1402 N |
| 0.7 MPa | 1962 N | 1962 N |
| Max (@1.0 MPa) | 286 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-SCD63X700S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 63 | Bore size in mm. |
| ×700 | 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-SCD63X700S Is Used
Heavy Equipment Actuation
Drives symmetric pushing and pulling mechanisms on construction machinery where the B04- prefix indicates dedicated heavy-equipment integration.
Shuttle Transfer Tables
Moves pallets or workpieces back and forth on an assembly line, utilizing the equal bi-directional force and rear rod for mounting stops.
Non-Rotating Tooling Pushers
Pushes and retracts dual-sided tooling where the through-rod offers better anti-rotation stability than a single-rod cylinder.
Is the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X700S the Right Cylinder?
Choose this 63 mm bore when an application requires 1402 N of symmetrical force at 0.5 MPa. If your machine needs less thrust, stepping down to a 50 mm bore provides 825 N each way; if more power is required, an 80 mm bore yields 2268 N. For tasks that only need force in one direction and do not benefit from a rear rod, the single-rod AirTAC SC series is a lighter, more compact alternative.
At 700 mm of stroke, the unsupported rod length increases susceptibility to bending under side loads; using an external guide rail or a dedicated guided cylinder is strongly recommended to prevent premature bearing wear. When replacing this unit, match the 63 mm bore, 700 mm stroke, PT1/4 port thread, basic mounting style, and the -S magnet option. Note that the adjustable cushions only decelerate the piston at stroke ends and will not hold a load if air pressure is lost—an external mechanical lock or pilot-operated check valve is required for position holding.
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-SCD63X700S FAQ
The B04- prefix marks this as AirTAC's construction-machinery dedicated variant of the SCD63X700S. It is mechanically identical to the standard SCD63X700S, offering the same 63 mm bore, 700 mm stroke, and 1402 N equal push/pull force at 0.5 MPa.
A double-rod cylinder provides identical push and pull force (1402 N each way at 0.5 MPa) because the rod area is subtracted from both sides. The through-rod also allows mounting tooling or sensors on the rear end and offers better anti-rotation guidance compared to a single-rod cylinder.
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