Sheet film extrusion melt pump metering pump

Detailed Analysis of Sheet and Film Extrusion Melt Pumps (also known as Metering Pumps):

I. Definition and Function

Definition:

A sheet and film extrusion melt pump is a positive displacement conveying device with high-precision gear clearance and volumetric structure design, enabling stable and balanced extrusion.

Function:

Melt pumps are widely used in production lines for chemical fibers, granulation, plastic films, sheets, plates, profiles, pipes, wires and cables, wire drawing, and composite extrusion. They stabilize extrusion, enhance product dimensional accuracy, and reduce waste rates. Melt pumps also increase production capacity, reduce energy consumption, enable low-temperature extrusion, and extend machine lifespans.

II. Main Characteristics

Stable Extrusion: Melt pumps can eliminate feeding errors from the feeding system, weaken fluctuations transmitted from upstream processes, and quickly enter a stable working state.

Increased Production: When a melt pump is installed on an extruder, the pressure reduction function is transferred to the gear pump. This allows the extruder to operate under low pressure and temperature, significantly reducing leakage flow and increasing production.

Linear Extrusion Characteristics: Melt pumps have low leakage flow, and their conveying capacity is basically linearly related to the rotational speed, facilitating coordination between upstream and downstream equipment.

Pressure Boosting and Stabilization: In addition to metering, melt pumps also have pressure boosting and stabilizing functions.

III. Application Scenarios

Melt pumps are widely used in the extrusion molding processes of plastics, resins, rubbers, and chemical fiber products. Especially in the production of sheets and films, the stable extrusion and precise metering functions of melt pumps are crucial for improving product quality and production efficiency.

IV. Brands and Suppliers

Multiple brands and suppliers offer sheet and film extrusion melt pumps, such as Zhengzhou Best Melt Pump Co., Ltd. and Jiangsu Lilian Machinery Co., Ltd. These companies typically have years of production experience and technical expertise, providing high-quality products and professional after-sales services.

V. Purchasing and Maintenance Suggestions

Purchasing Suggestions: When purchasing a melt pump, consider factors such as precision, stability, durability, and the supplier's reputation and after-sales service. Additionally, select the appropriate model and specification based on production needs.

Maintenance Suggestions: Regularly maintain and service the melt pump, such as cleaning the gears, checking the bearings, and replacing seals, to ensure its normal operation and extend its lifespan.

In summary, sheet and film extrusion melt pumps play a vital role in the extrusion molding processes of plastics, resins, rubbers, and chemical fiber products. Choosing the right melt pump and regularly maintaining it are crucial for improving product quality and production efficiency.

Email: info@battemachinery.com

WhatsApp: +86 158 38331071