07,24,2026 1 views
Imagine: a component as light as only 10 milligrams, lighter than a grain of rice; The inner diameter is 0.7 millimeters and the wall thickness is 0.4 millimeters, so small that it can't even be pinched by fingers. This type of component requires the production of hundreds of millions of pieces every year, and the tolerance of each piece must be controlled within ± 2 microns - equivalent to one fortieth of the diameter of a human hair.
This is not science fiction, this is the daily routine of global silicone processing giant Starlim.
Q
Why have micro components become a "hot commodity"?
The demand for micro silicone parts in industries such as medical devices, automotive electronics, and consumer electronics is exploding. Precision acoustic components in hearing aids, ophthalmic surgical instruments, automobilesSensorMicro sealing rings - they all have a common feature:Extremely small size，Extremely high precisionNo room for any mistakes.
The global liquid silicone market is expected to reach $7.55 billion by 2035, with a compound annual growth rate of approximately 9.1%. among which,Medical applications account for over 38%，Automotive applications account for nearly 28%.
Micro injection molding is becoming a battleground for high-end manufacturing.
But the problem arises:
What is the difficulty of mass producing micro components?
1
Core pain points:
A battlefield invisible to the naked eye
Starlim's marketing manager Dominik Kreuzmayr showed us two samples:
One is an O-ring and the other is a hearing aid accessory. The former has an inner diameter of 0.7 millimeters, while the latter has a size of 6 × 5 × 1 millimeters - although the latter appears larger, the process difficulty is actually higher.
Why?
Because it is a 'two-componentStructure:
The center is a layer of blue liquid silicone film, covered with high-strength outer layerPBTThermoplastic skeleton. The two layers of materials should be seamlessly combined together,The overall tolerance is only ± 2 micrometers.
Conventional large-scale molding can still buffer some errors with residual material fusion pads, "said G ü nter Polt, a process engineer with nearly 30 years of experience in silicone molding." But there is no room for this in micro parts.The precision of whole machine control is the core guarantee of productionThe naked eye cannot judge whether it is good or bad, and it must be detected with the help of a microscope. ”
This is the harsh reality of micro injection molding:Zero fault tolerance.
2
Solution:
Full process integration in a 2 square meter space
Starlim's answer is:
Weimeng all electric micro injection molding machine MicroPower
The whole machine occupies only2 square metersBut don't be fooled by its' small figure '- it integratesInjection molding machine, drying, feeding, mold temperature control, removal, product testingAnd various supporting process components.
The distance between the pull rods is 400 millimeters,moldSpacious operating space, convenient for maintenance and retrieval of parts.
More importantly, its' material saving design ': the injection plunger can directly reach the mold parting surface,Significantly reduce the size of the sprue, and even completely eliminate sprue wasteLiquid silicone cannot be recovered after vulcanization, which has a particularly prominent effect on reducing costs and increasing efficiency.
When we established the micro injection molding department 15 years ago, only Weimeng could provide micro injection molding equipment that could be industrially mass-produced on the market, "Kreuzmayr recalled. Nowadays, MicroPower has undergone continuous iteration and has become a benchmark in the micro injection molding industry in terms of precision and production efficiency.
3
Not just injection molding machines,
It is a complete set of production units
The true value of MicroPower lies in itsintegrationThinking.
Taking hearing aid parts as an example, Starlim is developing a groundbreaking process: after the injection molding of the parts is completed, acoustic vibration testing can be performed directly in the mold cavity without the need to remove them. Because the position of micro parts is fixed after molding, there is no need for secondary positioning calibration during quality inspection, which greatly improves the detection efficiency. The mold development team has integrated a sound emitting device and a laser detection module inside the robotic arm fixture, achieving the goal of "Forming and testingThe closed loop.
In addition, MicroPower has ample room for automation expansion. In addition to the vertically installed Mighty Scara robotic arm inside the body, various external interfaces are also reserved to connect to Starlim's self-developed picking device. Two devices can be linked by a robotic arm to form a composite production unit——It can efficiently mass produce two-component parts or be split into two independent devices to process single component products.
Faced with extremely large and demanding production conditions,MicroPower runs stably and has strong process controllabilityAlexander Ammer, the head of the micro injection molding department at Starlim, commented, "Our communication with Weimeng is smooth, and we can work together to solve various production problems, fully unleashing the full process performance of the equipment
4
Industry insights:
What is the "moat" of micro injection molding?
The case of Starlim reveals a key trend: in the field of micro components,Deep collaboration of equipment, molds, and processesThis is the real competitive barrier.
Starlim's mold workshop is the core business of the group, and since its establishment in 1974, molds have only been used for our production line. For customers, this meansThe interoperability between mold research and development and molding process technology has achieved true collaborative developmentNowadays, relying on new technologies such as laser processing and micro 3D printing, it is possible to create precision molds for hearing aids that meet strict acoustic standards.
At present, Starlim has multiple MicroPower units being put into production simultaneously in the Maschtrenk factory area, some of which are located in a brand new dust-free workshop for the production of high-precision products such as ophthalmic surgery. Each device is customized for its corresponding product category, including single component dedicated models, two-component models, and linked composite units.The proportion of two-component orders is about 40%, and the demand for consulting continues to rise.
From miniature sealing rings below 10 milligrams to precision components for two-component hearing aids, Starlim has proven through 15 years of practice that:
Micro injection molding is not a 'scaled down' version of ordinary injection molding, but a process that requiresNew Thinking、Brand new equipment、New process systemThe independent track.
On this track, the mighty MicroPower is already at the forefront.
