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Tungsten heavy alloy counterweight balance
| Payment Type: | T/T |
| Incoterm: | FOB,CIF,EXW,FCA,Express Delivery |
| Min. Order: | 10 PCS |
| Transportation: | Ocean,Air,Express |
Attributes
Model No.: JDTG-TC-090
Brand: ZZJD
Place Of Origin: China
Size: Support customiztion
Material: Tungsten
Density: 16~19g/cm³
Surface: Sintering surface, Forged surface, Ground surface
Lead Time: 30 days
PACKAGING & DELIVERY
Selling Units : Kilogram
Package Type : Standard export packing
DESCRIPTION
Tungsten heavy alloy (THA) counterweights deliver ultra - dense, compact balancing for static/dynamic applications, outperforming lead/steel in size - constrained, high - performance scenarios while being far more eco - friendly than lead. They’re made via powder metallurgy (typically WNiFe or WNiCu) with densities of 16.5–18.8 g/cm³, balancing weight, strength, and machinability.
Core Properties & Material Grades of thungsten heavy alloy
|
Property |
Details |
Key Benefit |
|
Density |
16.5–18.8 g/cm³ (1.65–1.85x lead, 2.2x steel) |
Same weight in 30–40% smaller volume for tight designs |
|
Mechanical |
High tensile strength, good ductility, wear/corrosion - resistant |
Withstands dynamic loads (engine crankshafts) and harsh environments |
|
Machinability |
Easy to turn, mill, drill, braze, or shrink - fit |
Custom shapes/sizes for precise center - of - gravity tuning |
|
Environmental |
Non - toxic (vs. lead), low bioaccumulation |
Compliant with RoHS and aquatic protection rules |
|
Magnetic |
Weakly ferromagnetic (standard WNiFe); non - magnetic WNiCu available |
Fits sensitive electronics/avionics |
Applications of tungsten heavy alloy counterweight balance
Aerospace: Rotor/propeller blades, aileron/rudder counterweights, and satellite momentum wheels—small form factor prevents flutter and improves control precision.
Automotive: Crankshaft/flywheel balancing, racing chassis ballast, and EV battery weight distribution—reduces vibration and enhances handling.
Marine: Yacht/sailboat keel ballast and submarine trim weights—high density cuts drag while boosting stability in rough seas.
Precision Instruments: Watch rotor bobs, optical microscope stages, and gyroscopes—micro - sized weights enable ultra - fine balance tuning.
Industrial: Elevator traction weights, drilling logging tool collars, and turbine vibration dampers—extends equipment life by reducing stress loads.
Design & Customization Guide
Weight & density matching: Choose density (17–18.5 g/cm³) based on volume limits—higher density = smaller part for the same mass.
Shape optimization: Machined into bricks, discs, rods, or complex geometries (via isostatic pressing/injection molding) for bolt - on, adhesive, or press - fit installation.
Surface treatments: Electroless nickel plating for corrosion resistance; black oxide for wear; threaded inserts for quick adjustments.
Mounting methods:
Static: Epoxy bonding or bolted (elevator weights).
Dynamic: Shrink - fit (crankshafts) or integral machining (turbine rotors) to avoid loosening under vibration.
Sourcing & Quality Checks
Supplier qualifications:, powder metallurgy expertise, and material traceability (tungsten purity ≥99.9%).
Quality tests:
Density: Archimedes principle (target ±0.05 g/cm³).
Mechanical: Tensile strength (≥800 MPa) and hardness (≥30 HRC).
Non - destructive: Ultrasonic testing for internal defects.
