Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X450S
The AirTAC Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X450S 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, 450mm stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Rod (both ends)Ø20 mm
- Stroke450 mm
- Port sizePT1/4
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X450S
The B04-SCD63X450S is AirTAC's construction-machinery dedicated variant of the standard SCD63X450S double-acting, double-rod cylinder. The B04- prefix designates its heavy-equipment application focus without altering the core mechanics. Because the Ø12 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 and 2523 N at 0.9 MPa.
Featuring a 450 mm stroke and a built-in magnet for CMSG/DMSG/EMSG sensors, this unit provides excellent anti-rotation characteristics and symmetric bearing loading. The adjustable cushion strokes are 28 mm, and the overall retracted length is based on a 210 mm body length A(SCD). It is a genuine AirTAC component engineered for demanding environments.
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X450S Technical Specifications
| Model | Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X450S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø63 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 450 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-SCD63X450S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 63 | Bore size in mm. |
| ×450 | 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-SCD63X450S Is Used
Excavator Linkages
Drives auxiliary mechanisms on heavy equipment where the B04- prefix ensures suitability for construction machinery duty cycles and harsh jobsite conditions.
Shuttle Transfer Tables
Moves fixtures equally in both directions using the symmetric push and pull output, with the rear rod acting as a stable mounting point for tooling.
Non-Rotating Pushers
Utilizes the dual-rod design for enhanced resistance to twist during part ejection, while the built-in magnet tracks end-of-stroke position via barrel sensors.
Is the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD63X450S the Right Cylinder?
Choose this 63 mm bore when an application demands 1402 N of thrust both ways at 0.5 MPa. If your load is lighter, stepping down to a 50 mm bore yields 825 N and saves space; if you need more power, the 80 mm bore provides 2268 N. A single-rod SC cylinder is preferable if rear tooling or symmetric force is unnecessary, while heavy side loads require a true guided cylinder rather than relying solely on the through-rod.
At 450 mm of stroke, the unsupported rod length increases susceptibility to bending under lateral loads—use external guides to prevent rod damage. For exact replacements, match the 63 mm bore, 450 mm stroke, PT1/4 port, basic mounting, and the -S magnet option. Note that air pressure loss will cause the piston to drift; a mechanical lock is required to hold loads safely.
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-SCD63X450S FAQ
The B04- prefix indicates this is AirTAC's construction-machinery dedicated line. It is mechanically identical to the standard SCD63X450S, offering the same 1402 N equal push/pull force, 450 mm stroke, and built-in magnet, but is designated for heavy-equipment builders.
A double-rod cylinder provides identical force in both directions because the rod area is subtracted from both chambers. It also offers better anti-rotation stability, symmetric bearing wear, and a rear rod extension for mounting secondary tooling or sensor flags.
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-SCD63X450S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.