Views: 0 Author: Site Editor Publish Time: 2026-08-06 Origin: Site
Wire‑on‑tube condenser is the most popular heat rejection component for household refrigerators. It consists of continuous Bundy tubes with dozens of steel resistance‑welded wires on both sides of the tube. Those metal wires act as extended heat‑transfer surfaces to dissipate high‑pressure gaseous refrigerant heat to ambient air by natural convection.
CSTHEATEXCHANGER supplies standard & custom wire‑on‑tube condensers including rolled‑layer compact versions for global refrigerator manufacturers. We support 1:1 replacement per customer drawings, full leakage‑pressure test before shipment, anti‑rust surface treatment.
Two major constructions for refrigerator projects:
Flat wire‑on‑tube condenser: traditional flat grid, mounted on refrigerator back panel
Rolled‑layer wire‑on‑tube condenser: multi‑layer compact coiled structure, for ultra‑thin & embedded refrigerators with limited installation room
Working principle inside refrigeration cycle
Hot high‑pressure refrigerant gas flows into wire‑on‑tube coil after compressor discharge.
Heat transfers from refrigerant → tube wall → welded steel wires.
Natural surrounding air takes away heat without mandatory fan.
Refrigerant changes state from gas to high‑pressure liquid, ready for capillary throttling and subsequent cooling inside evaporator.
Most domestic fridges run this condenser by natural convection, no fan required.
Key benefits for refrigerator OEMs
Resistant to dust clogging: Wide gaps between steel wires. Dust will not easily block air flow. Energy efficiency stays stable over years.
Robust & long service life: Thick steel wires + electrophoresis anti‑corrosion coating. Typical service life reaches 10‑15 years, matching whole refrigerator lifetime. No fragile thin‑fin failure risk comparing with fin‑and‑tube condenser.
Silent operation: No thin vibrating fins, zero fin‑whistle noise, ideal for home quiet requirements.
Works well with natural convection: No fan power consumption, simplifies refrigerator system design.
Flexible geometry: Flat, bent or rolled‑layer coiled shapes available. Custom tube diameter, wire pitch, overall dimension & mounting brackets per fridge drawing.
Compatible with modern refrigerants: Fits R600a, R134a for new‑energy‑saving refrigerator models.
