Starch blends are mixtures of thermoplastic starch (TPS) and plastics made from fossil-based or sustainable raw materials. Manufacturing of this type of bioplastic, currently comprising the largest share of all bioplastics, can be accomplished within the twin screw extruder in a single process step.

Processing Steps:

The biopolymer is fed directly into the extruder along with components for TPS. The recipes and properties of starch blends vary greatly depending upon the purpose of the end product. Using high-accuracy feeders, raw materials are introduced into the twin screw extruder. With the smart flow aid device ActiFlow, gravimetric twin screw feeders can reliably feed even difficult flowing starches with high accuracy.
Within the twin screw extruder the raw materials are modified by means of intensive energy introduction and homogeneously mixed.
The melt is reliably devolatilized and, depending upon product properties, can be processed into compounds using strand or underwater pelletizing.

Product Video:

Model	Screw Diameter (mm)	L/D	Screw RPM	Main motor KW	Torque Grade T/N3	Capacity kg/h
SHJ-20	21.7	32-68	400/500/600	4	5.8	0.5-15
SHJ-30	30	32-68	400/500/600	11	5.8	5-50
SHJ-36	35.6	32-68	500/600/700/800	15-18.5-22	5.7	20-80
SHJ-42	41.2	32-68	500/600/700/800	22-30-37	5.7	50-120
SHJ-50	50.5	32-68	500/600/700/800	37-45-55	5.8	80-200
SHJ-63	62.4	32-68	500/600/700/800	55-75-90	5.8	150-350
SHJ-72	71	32-68	500/600/700/800	90-110-132-160	5.7	300-600
SHJ-85	82	32-68	500/600	160-200	5.7	600-1000
SHJ-92	91	32-68	500-600	250	5.8	840-1600
SHJ-135	133	32-68	650-750	400-500	5.8	1950-3250

Established in 2004, with over 17 years of expertise
Capable of producing 500 sets each year
Endorsed with CE and ISO 9001 certifications
All components are exclusively manufactured in-house
Offering competitive pricing and exceptional customer support
Efficient and prompt delivery service
Providing a 12-month warranty on product quality

Nanjing Jieya has the ability to create custom-made plans for fully automated production lines, covering design, production, installation, and activation. This not only reduces costs for customers but also improves efficiency and equipment effectiveness.

Self-manufactured Transmission Box

Torque Rating Grade: T/A3≤8 adhering to the national standard for key components

Incorporating a novel structural design and employing high-precision grinding of hardened gear teeth, the transmission box guarantees prolonged and highly efficient operation.

Self-manufactured Screw

The screw element features a closely interlocked design, in block form, and can be effortlessly replaced to accommodate different materials.

Self-manufactured Barrel

With a precision grade reaching IT 6, the barrel promotes energy conservation, and its block design allows for versatile combinations.