Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X150S
The AirTAC Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X150S 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, 150mm stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Rod (both ends)Ø20 mm
- Stroke150 mm
- Port sizePT1/4
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X150S
The AirTAC B04-SCD63X150S is a double-acting, double-rod pneumatic cylinder engineered for construction machinery. The B04- prefix designates this as a construction-machinery dedicated variant of the standard SCD63X150S, meaning it is mechanically identical in its core specifications. 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.
Featuring a 63 mm bore and 150 mm stroke, this unit includes a built-in magnet (-S) for barrel-mounted CMSG/DMSG/EMSG position sensing. The through-rod design uses a 20 mm diameter rod on both ends, providing enhanced guidance and anti-rotation characteristics compared to a single-rod cylinder. It incorporates adjustable cushions with a 28 mm length to decelerate the piston smoothly at stroke ends, and the body length A(SCD) is 210 mm.
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X150S Technical Specifications
| Model | Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X150S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø63 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 150 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-SCD63X150S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 63 | Bore size in mm. |
| ×150 | 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-SCD63X150S Is Used
Excavator Linkage Control
Drives secondary attachment levers on earthmoving equipment, utilizing the equal bidirectional force to smoothly pivot components without speed discrepancies.
Shuttle Material Transfer
Moves parts between two processing stations on a heavy-duty transfer table, using both rod ends to carry tooling and maintain balanced bearing loads.
Non-Rotating Pusher
Pushes workpieces from alternating sides of a fixture, where the dual-rod construction prevents rotational drift and ensures precise alignment.
Is the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X150S the Right Cylinder?
Choose this 63 mm bore when an application demands 1402 N of thrust in both directions at 0.5 MPa. If your machine requires less force, stepping down to a 50 mm bore yields 825 N each way, whereas upgrading to an 80 mm bore provides 2268 N. A single-rod SC cylinder is preferable if you only need one-sided actuation and want a shorter overall envelope, but the SCD is required for dual-tooling or symmetric loading. For heavy side loads, note that while a through-rod offers better guidance than a single rod, a fully guided cylinder is still recommended to prevent rod bending.
When replacing this unit, ensure the five critical parameters match exactly: 63 mm bore, 150 mm stroke, PT port thread, the specific SCD mounting accessory (Basic, FA, LB, or TC), and the -S magnetic option. Note that the adjustable air cushion only decelerates the piston near the stroke end; it does not lock or hold the load. If the construction equipment must maintain position without live air pressure, an external mechanical lock or pilot-operated check valve is mandatory.
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-SCD63X150S FAQ
The B04- prefix indicates that this SCD63X150S cylinder is part of AirTAC's construction-machinery dedicated line. It is mechanically identical to the standard SCD63X150S, offering the exact same 63 mm bore, 150 mm stroke, and double-rod configuration, but is designated for heavy-equipment builders.
A double-rod cylinder provides identical push and pull forces because the rod area is subtracted from both sides. For this 63 mm bore, that means 1402 N of force in both directions at 0.5 MPa. It also offers better anti-rotation properties and allows tooling or a sensor flag to be mounted on the rear rod.
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-SCD63X150S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.