Side Forced Feeding Extruder (Model 12) Shipped to Dalian for Resin Powder Gravimetric Feeding & Extrusion

Project Overview

HLD custom-built the Model 12 Side Forced Feeding Extruder, which has passed acceptance and been shipped to Dalian. This unit is specially designed for resin powder processing, equipped with a gravimetric feeding system and explosion-proof drive solution. It meets the customer’s R&D and production requirements for low-flow, high-precision side feeding and extrusion of powder materials.

Core Technical Specifications

• Equipment Name: Model 12 Side Forced Feeding Extruder
• Process Material: Resin Powder
• Power Supply: 380V, 50Hz

Feeding System

• Feeding Capacity: 0.1 ~ 2 kg/h
• Hopper Volume: 10 L
• Top Hopper Connection: DN80 straight pipe
• Feeding Mode: Loss-in-weight feeding

Extrusion System

• Max Screw Speed: 500 r/min
• Machine Type: Modular intermeshing twin screw
• Nominal Screw Diameter: Φ11.7 mm
• Screw Center Distance: 9.5 mm
• Screw L/D Ratio: 20:1
• Screw Element Material: Stainless Steel (≥440C)
• Barrel Type: Split barrel structure
• Barrel Diameter: Φ11.9 mm
• Barrel Material: Stainless Steel (≥440B)
• Barrel Outlet Flange Dimension: As per attached drawing
• Screw Protrusion Length from Barrel Face: 144 mm
• Barrel Temperature Control: Built-in cooling channels (designed by the seller)
• Motor Type: Explosion-proof servo motor (Gas explosion-proof Ex db IIB T4 Gb)
• Motor Power: 0.37 kW
• Motor Speed: 1450 r/min
• Gearbox: Parallel type, 3-shaft design, oil-immersed lubrication & cooling, integrating speed reduction and torque distribution.

Other Remarks

• Frame: Integrally welded structure

Key Advantages

1. High-precision loss-in-weight feeding Tailored for resin powder, it delivers stable low feeding rate from 0.1 to 2 kg/h with excellent metering accuracy. Ideal for micro-addition of formulations and side feeding during compounding modification. The DN80 straight pipe interface facilitates connection with upstream powder equipment, and the 10L hopper enables convenient loading.
2. Compact modular twin screw design L/D ratio 20:1 with split barrel for easy disassembly and cleaning. Screw and barrel are made of 440C and 440B stainless steel respectively, featuring good wear and corrosion resistance for various resin powders.
3. Explosion-proof configuration Fitted with Ex db IIB T4 Gb explosion-proof servo motor, complying with safety standards for powder processing environments.
4. Stable transmission & precise temperature control Parallel 3-shaft gearbox with oil immersion cooling ensures steady torque output. Internal cooling channels in the barrel realize accurate temperature control and prevent powder caking caused by overheating. The integrally welded frame guarantees stable operation.

Project Value

This side forced feeding extruder is a compact precision side feeding auxiliary unit. It is commonly matched with the main extrusion line for accurate side addition of powder, additives and functional fillers, widely used in new material formulation R&D and compounding trials. The machine has been packed and delivered to Dalian to support the customer’s stable, safe and high-precision side feeding & extrusion of resin powder.