Extrusion Parallel Twin Screw Barrel
Twin screw extrusion
Simply described, the twin-screw extruder is a machine consisting of two co-penetrating and self-cleaning identical screws which are mounted on shafts and rotate in the same direction in a fixed closed housing called [barrel" . The twin-screw extruders operate continuously with very short residence times.
The diameter of the screws in the conical twin-screw extruder is larger at the feed end and smaller at the die end.
Extrusion Parallel Twin Screw Barrel,Parallel Twin Screw Barrel,Twin Screw Parallel,Parallel Twin Screw Ningbo Jinyi Precision Machinery Co., Ltd. , https://www.jinyi-machinery.com
Heat Exchanger Features:
1. Materials: Copper, aluminum, and galvanized steel.
2. Aluminum foil options: Hydrophilic or bare finish.
3. Fin types: Louvered, flat, or corrugated.
4. Copper tube options: Diameter ranging from 7mm to 15.888mm, available in grooved or smooth versions.
5. Fin pitch can be adjusted between 1.8–5.8mm.
6. Hole pitch and row pitch: 25×21.65mm and 12.7×19.05mm respectively.
7. Suitable for refrigerants such as R134A, R22, R404A, and R407C.
8. Voltage options: 220V/1/50Hz or 380V/3/50Hz, or customized.
9. Condensing fans available: Shaded pole or outer rotor fan motor.
10. Gas test conducted under 3.0MPa air pressure to ensure tightness.
11. Widely used in refrigeration systems, cold storage, and other cooling applications.
12. Customized products available based on samples or drawings.
13. Manufacturing process: Tube bending, fin punching, expansion, drying, welding, leak testing, inspection, and packaging.
Heat Exchanger Pictures:
Item
Heat Exchanger Type
Operation Medium
Operation Pressure (MPa)
Application
1
Φ16/Φ9.52/Φ12.7 Copper tube with aluminum fin
Cold/hot water
≤1.6
Used in combined air handling units, fan coil units, and air conditioning devices
2
Φ18/Φ20 Steel pipe winding with steel sheet
Steam
≤0.2
Used in air handling units and fan coil units
3
Φ16/Φ9.52/Φ12.7 Copper tube with aluminum fin
Brine
≤1.6
Used in cold storage and low-temperature systems
4
Φ9.52/Φ7.94/Φ7 Copper tube with aluminum fin
Ethylene glycol
≤1.6
Used in energy recovery and low-temperature systems
5
Φ16 Copper tube with aluminum fin
Ice mud
≤1.6
Used in dry operation conditions and fresh air dehumidification systems
6
Φ9.52/Φ7.94/Φ7 Copper tube with aluminum fin
R22
≤1.9
Used in industrial and commercial air conditioning systems
7
Φ9.52/Φ7.94/Φ7 Copper tube with aluminum fin
R407C
≤1.9
Used in industrial and commercial air conditioning systems
8
Φ9.52/Φ7.94/Φ7 Copper tube with aluminum fin
R134a
≤3.1
Used in vehicle and vessel transportation systems
Ms. Ruby Yang
Tel: +86 21 35324169-208
Mob: +86 15538183231
The parallel twin screw and the conical twin screw
According to whether the screw axis is parallel or not, the twin screws can be divided into the conical twin screw and the parallel twin screw, where the parallel twin screws are divided into fully intermeshing type, partly intermeshing type, non-engaged type, etc. In the case of parallel screws, the feed end and the die end have the same diameter.
Tube Fin Heat Exchanger
The Technology to Create Perfection:
1. Our fins are manufactured to the highest quality standards, featuring both plain and wave-type flaring for optimal performance.
2. The fin edges can be either straight or ripple-shaped, depending on the specific application requirements.
3. All coils undergo 100% leakage testing, followed by a cleaning process using heated air circulation and nitrogen charging to ensure cleanliness and durability.
4. The mechanical bullet expansion of copper tubes to the fins ensures efficient heat transfer in condensers and evaporators.
5. We source only the best raw materials from around the world to produce heat exchangers that meet global quality standards.
6. Available copper pipe diameters include 7mm, 7.94mm, 9.52mm, and 12.75mm.
7. Aluminum foil is available in blue color with hydrophilic and bio-friendly (health) properties.
Note: For more information, please contact us.