Tungsten Counterweight Block

Vacuum-sintered tungsten counterweight blocks for spacecraft static and dynamic equilibrium — zero outgassing, 17.0–18.5 g/cm³ density and CTE matched to aerospace structural metals.

Materials: Vacuum-sintered tungsten heavy alloy
Features: Zero outgassing, low CTE 4.5×10⁻⁶/°C, thermal conductivity 60–90 W/(m·K), secondary Gamma/X-ray shielding
Application: Satellite payload balancing, orbital deployment alignment, attitude control systems (reaction wheels, gyroscopic platforms), deep space exploration probes.

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Specifications

Parameter	Value
Vacuum Stability	Zero outgassing / 零释气
Density Options	17.0 – 18.5 g/cm³
Thermal Expansion Coeff.	4.5 × 10⁻⁶ / °C
Thermal Conductivity	60 – 90 W/(m·K)
Radiation Shielding	Excellent Gamma/X-ray attenuation / 优异的伽马/X 射线衰减

FAQ

Frequently Asked Questions

What materials and process are used for Tungsten Counterweight Block?

Tungsten Counterweight Block is made from Vacuum-sintered tungsten heavy alloy and is formed by MIM/PM (metal injection molding / powder metallurgy) near-net-shape and sintered to a relative density of ≥ 98%, which keeps mechanical properties close to wrought material.

What are the key specifications of Tungsten Counterweight Block?

Typical specifications: Vacuum Stability: Zero outgassing / 零释气; Density Options: 17.0 – 18.5 g/cm³; Thermal Expansion Coeff.: 4.5 × 10⁻⁶ / °C. The full parameter list is in the specifications table on this page; custom requirements can be discussed against your drawing.

What is the MOQ and lead time for Tungsten Counterweight Block?

MOQ is 1000 pcs. Mold lead time is about 20 days (mold fee typically RMB 20–40k depending on part geometry), and production lead time is about 7 days once the mold is validated; secondary processing adds 3–5 days.