BangTextile™ Heavyweight Acoustic Sound-Dampening Holland Velvet

^{Product Description}

Specially developed for architectural acoustics, BangTextile™ Heavyweight Acoustic Holland Velvet features a ultra-dense pile matrix designed to trap air molecules and absorb sound waves across middle and high frequencies. This fabric significantly reduces echo and reverberation in auditoriums, theaters, and luxury home cinemas.

Composition: 100% High-Density Polyester Microfiber
Weight: 520 GSM
Width: 142 cm / 56 inches
Acoustic Absorption: NRC 0.75 (ISO 354 Sound Absorption Standard)
Fire Safety: BS5852 / CAL 117 Ready

^Application

Acoustic Drapery: Cinema stage curtains, auditorium side drapes, music studio curtains.
Wall Paneling: Upholstered sound-dampening wall panels, hotel conference room walls.
Residential Cinema: Home theater curtains, soundproof room partitions.

FAQ

Q: What Noise Reduction Coefficient (NRC) rating does this fabric achieve?A: When draped at 100% fullness, BangTextile Acoustic Holland Velvet achieves an NRC rating of 0.75, blocking up to 75% of ambient sound reflection.
Q: Is this heavy velvet difficult to sew on standard machines?A: We recommend heavy-duty industrial sewing machines with size 16-18 needles for effortless processing.

What aluminum alloys do you use to make motorcycle engine cases?

We mainly use high-performance aluminum alloys such as ADC12 and A356. The ADC12 is ideal for complex shapes such as side covers due to its excellent flow properties, while the A356 is the first choice for structural parts such as crankboxes that require excellent strength and elongation. We use a spectrometer to confirm the composition of each melt to ensure material stability.

How to ensure the tightness of the engine cover and prevent oil leaks?

Preventing leaks is the core standard we ensure. We control internal density through precise high or low pressure casting parameters. After casting, we perform precision CNC machining on the sealing surfaces and perform pneumatic leak tests on the oil passages and water passages to ensure zero leaks in the assembly.

How long is the delivery lead time for OEM motorcycle engine covers

For new OEM projects, the lead time from mold design to T1 sample delivery is typically 35-50 days. Once samples are approved, our capacity of 5000 tons per year allows us to adjust mass production plans to meet your specific delivery deadlines

What surface polishing options do you provide for motorcycle engine case covers?

Our process includes Shot Blasting and vibration deburring to achieve a clean, matte appearance. At the same time, we can also prepare powder coated or painted surfaces based on the aesthetic requirements of your brand.

Application Background and Use Scenario

Heat Pipe R&D and Sample Preparation

Heat pipe development requires stable and repeatable sample-level processing before entering mass production. During R&D stages, engineers need precise control over heating, degassing, and welding preparation to verify product structure and process feasibility. This equipment is designed to support such sample preparation tasks under controlled conditions.

Process Validation Before Mass Manufacturing

Before scaling up to full production lines, manufacturers often need to confirm welding parameters, heating lengths, and degassing performance. This machine provides a practical platform for process validation, helping reduce risks during later mass production deployment.

Integrated Heating and Degassing Process

The heating process is controlled by both temperature and time, allowing operators to set parameters according to different pipe diameters and material requirements. This helps maintain consistent thermal conditions during sample processing.