Guangdong Blesson Precision Machinery Co., Ltd. is a high-tech enterprise integrating R&D, manufacturing, sales, and service of plastic extrusion equipment, and is committed to creating high-end plastic machines. Our large L/D ratio series single-screw extruders, through special screw design and careful selection of various components, obtain the optimal overall performance and high output. The capacity is much higher than the industry average, and the plasticization effect is superb. The following table shows the main parameters of Blesson large L/D ratio (40:1) series single screw extruders:
| High-efficiency Single Screw Extruder – L/D ratio (40:1) | ||||
| Model | Screw Diameter (mm) |
L/D Ratio | Motor Power (kW) | Max. Output (kg/h) |
| BLD50-40 | 50 | 40：1 | 75 | 340 |
| BLD65-40 | 65 | 40：1 | 132 | 600 |
| BLD80-40 | 80 | 40：1 | 200 | 870 |
| BLD90-40 | 90 | 40：1 | 250 | 1050 |
| BLD100-40 | 100 | 40：1 | 280 | 1200 |
| BLD120-40 | 120 | 40：1 | 355 | 1500 |
Let’s take BLD50-40 single-screw extruder as an example to introduce its main performance and components in detail.
| Screw | The latest design with large L/D ratio, good plasticization and dispersion effect |
| Barrel | Optimized spiral slotted bushing, efficient solid conveying efficiency |
| Motor | WEG permanent magnet synchronous motor, high efficiency and energy saving, low noise |
| Gearbox | Special Taiwan-brand gearbox for extruder, stable transmission and low noise |
| Control system | 12-inch German Siemens touch screen operating system for remote operation |
| Weighing system | iNOEX weighing system, integrated control, to ensure stable quality of extruded products |
| Heater | High quality heater with stainless steel shell and heat insulation layer, energy saving. |
| Electrical components | Inverter: ABB
Contactor: ABB/ Schneider Breaker: ABB/ Schneider Solid relay: CELDUC/ CRYDOM |
At present, the large L/D ratio (40:1) series single-screw extruders from Guangdong Blesson Precision Machinery Co.,LTD. are at the leading level in the industry. They are widely used in various PE pipe production lines, PPR pipe production lines, profile production lines, and cast film production lines, and play a significant role in increasing production capacity and reducing energy consumption which have been praised by various plastic product manufacturers in the industry.
