Extruder Accessories

As a leading supplier of twin-screw extruders and accessories in China, Kerke provides customers with comprehensive accessory sales services covering all categories, processes, and cycles through its deep technological accumulation and global service network. We have built the most comprehensive product library of twin-screw extruder accessories in the industry, covering core components, vulnerable parts, auxiliary devices, and customized components.

Original accessories

Covering core transmission system components, barrel components, intelligent auxiliary devices, as well as vulnerable parts and consumables.

Customization of accessories

The production needs of customers vary greatly, so we offer customized services for extruder accessories that are suitable for different brands of extruders.

We can independently produce and assemble accessories, and strictly control the quality of every accessory,
global service, quick response, after-sales available.

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Free Spare Parts List

If you buy a Kerke extruder, you will receive the following quantity of free accessories, all of which will be shipped together with the machine. At the same time, we also recommend purchasing more related accessories for future use, which we will sell to new customers at the lowest price.

اسم	Quantity
Screw elements	~300mm
Pelletizer kinfe	2 sets
Solid state relay	2 pcs
Solenoid valve	1 pc
Temperature control meter	1 pc
Thermocouple	2 pcs
Hardware tools box	1 unit
Framework oil seal	4 pcs
Nylon pins	6 pcs
O ring	2 pcs

Accessories

We can provide the most complete accessories for extruders, so you don’t have to worry about not being able to purchase qualified accessories in your production and operation after purchasing the machine.

If you are using other models of extruders or different brands of extruders, please contact our engineers directly for customized accessories.

Temperature control and heating system

Accessories	Function Description	Normal Service Life	Influence Factor
Solid state relay（SSR）	Solid state relay, controlling the on/off of heating circuit	1-3 years	Load current and heat dissipation conditions
Thermocouple	Thermocouple, measuring barrel temperature	1-2 years	High temperature oxidation, mechanical vibration
Thermocouple (die head)	Special thermocouple for mold head, precise measurement of outlet temperature	1-2 years	Melt corrosion, frequent disassembly and assembly
Temperature control meter	Temperature control instrument, adjust heating temperature	2-5 years	Environmental humidity and voltage stability
Heating rods	Heating rod, providing heating energy for the barrel	1-3 years	Heating power density and whether the cooling medium is scaled
Cast aluminum heater	Cast aluminum heater, uniformly heating barrel	3-5 years	Uniformity of heating and degree of surface oxidation
Cast copper heater	Copper casting heater, efficient thermal conductivity heating	3-5 years	Uniformity of heating and degree of surface oxidation

Pressure and vacuum system

Accessories	Function Description	Normal Service Life	Influence Factor
Melt pressure sensor	Melt pressure sensor, monitoring extrusion pressure	1-2 years	Melt particle wear and pressure fluctuation frequency
Vacuum meter	Vacuum gauge, measuring vacuum system pressure	3-5 years	Fluctuations in vacuum degree and cleanliness of the medium

Transmission and Drive System

Accessories	Function Description	Normal Service Life	Influence Factor
Spline sleeve	Spline sleeve, connecting the drive shaft and screw	3-5 years	Axial/radial loads, lubrication status
Feeder screw	Feeding screw, control material input quantity	2-4 years	Material particle hardness and feeding stability

Screw and cylinder

Accessories	Function Description	Normal Service Life	Influence Factor
Barrel (C type liner)	C-type liner barrel, wear-resistant and corrosion-resistant	3-5 years	Lining material (such as tungsten carbide), material corrosiveness
Barrel (overall liner)	Integrated lining barrel, high-strength structure	5-8 years	Alloy hardness and uniformity of barrel temperature
Screw element	Screw components achieve material mixing and plasticization	1-3 years	Wear and tear in the mixing section, glass fiber content in the material
Screw shaft (40:1)	Screw shaft, providing material conveying power	5-10 years	Length to diameter ratio load, material abrasion resistance

Particle cutting system

Accessories	Function Description	Normal Service Life	Influence Factor
Hot cutting knife	Hot cutting knife, cutting materials at high temperatures	6-12 months	Cutting temperature (≥ 200 ℃), melt viscosity
Strand cutting knife (Cantilever)	Cantilever cutting blade, cutting strip materials	1-2 years	Cutting speed, hardness of strip material
Strand cutting knife (Gantry)	Longmen style cutting blade, stable cutting of large-sized materials	1-2 years	Equipment stability, cutting frequency
Underwater cutting knife	Underwater cutter, water-cooled cutting material	6-12 months	Blade material (such as hard alloy), cutting water impurities
Hot cutting die plate	Hot cutting template, used in conjunction with a hot cutting knife	1-3 years	Mold hole wear and cleaning frequency
Strand cutting die plate	Cutting template, forming strip-shaped materials	2-3 years	Material filling pressure, template surface treatment process
Underwater cutting die plate	Underwater cutting template, formed particles in water	2-3 years	Material filling pressure, template surface treatment process

Auxiliary and control components

Accessories	Function Description	Normal Service Life	Influence Factor
Solenoid valve	Electromagnetic valve, controls fluid on/off	10,000 to 50,000 starts	Cleanliness and opening/closing frequency of fluid medium
Intermediate relay (24V/220V)	Intermediate relay, signal conversion amplification	100,000 to 500,000 starts	Contact load current, environmental dust
Water pump (0.55KW)	Water pump, circulating cooling system	3-5 years	Water hardness and continuous operation time
Speed control meter	Speed control instrument, adjust screw speed	2-5 years	Frequency converter interference, speed regulation frequency