2.2 mm Tungsten Heavy Alloy Ball High Density Precision Ground Sphere for Aerospace and Medical Applications
Price:
Negotiable
MOQ:
10
Delivery Time:
5-25days
Brand:
Sanxin
Product Description
Tungsten Heavy Alloy Ball Ø2.2 mm Precision Ground Sphere for Aerospace, Hunting & Instrumentation
Tungsten Heavy Alloy Ball Ø2.2 mm Precision Ground Sphere for Aerospace, Hunting & Instrumentation
Product Overview: High Density at an Extremely Small Scale
The Ø2.2 mm tungsten heavy alloy ball represents the convergence of extreme material density and miniature precision manufacturing. At just 2.2 mm in diameter—smaller than a typical pen tip—this micro-scale sphere delivers mass comparable to much larger steel components, enabling engineers to achieve precise weight distribution and radiation attenuation where space is severely constrained.
With densities reaching 16.85-18.75 g/cm³ (approximately 60% denser than lead and over 130% denser than steel), this tiny sphere packs outsized performance into a component small enough to fit into mobile phone vibrators, ballpoint pens, ballistic shot shells, and radiotherapy collimators.
Key Applications for Ø2.2 mm Tungsten Alloy Balls
Medical Collimators & Radiotherapy
2.2 mm tungsten spheres are critical components in cancer treatment collimators:
- Multi-Leaf Collimator (MLC) Filling: Thousands of precision tungsten spheres form focusing aperture arrays that shape therapeutic radiation beams in Gamma Knife, CyberKnife, and linear accelerator systems.
- High-Attenuation Efficiency: Tungsten's high atomic number (Z=74) enhances photoelectric absorption and Compton scattering, effectively absorbing scattered radiation and ensuring the beam is precisely focused on the tumor site with a specific shape and angle.
- Non-Magnetic Requirements (WNiCu): The completely non-magnetic nature of WNiCu spheres (µ < 1.002) ensures no imaging artifacts in strong magnetic fields (such as MR-Linac systems), while their high density enables exceptionally thin yet effective gamma-ray collimation—achieving "razor-sharp" dose gradients that concentrate radiation on tumor volumes while sparing surrounding healthy tissue.
- Radiation Resistance: Tungsten alloy resists structural degradation under strong radiation exposure, unlike lead which may produce secondary bremsstrahlung radiation.
Defense
- Prefabricated Fragments (Controlled Fragmentation Munitions): 2.2 mm tungsten alloy spheres are used in mines, grenades, anti-radiation missiles, air defense munitions, and fragmentation warheads. Their high density delivers effective kinetic energy transfer and armor-piercing capability at small scale.
- Training Ammunition: Non-toxic tungsten shot for training ranges where lead is prohibited.
Aerospace & Precision Instrumentation
- Mobile Phone Haptics / Vibrators: Micro-sized tungsten spheres (commonly 2-5 mm diameters) used as vibrator weights for silent and haptic feedback mechanisms.
- Clockwork / Self-Winding Watch Rotors: Precisely weighted tungsten spheres in mechanical watch automatic-winding mechanisms.
- Balance & Anti-Vibration Tool Holders: Tungsten alloy balls provide effective vibration damping and dynamic balancing in high-speed machining applications where chatter must be minimized.
- Drones / Unmanned Aircraft Payload Ballasting: 2.2 mm spheres allow fine-grained adjustment of center-of-gravity in miniature UAVs.
- Guidance System Ballasting: Precisely calibrated masses for inertial navigation platforms and gyroscopes.
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Company
Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd
Location
No. 8, Middle School Road, Baiguan Town, Lusong District, Zhuzhou, Hunan, China
Contact Person
Anne Zhang