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High-Precision Unscrewing Molds for Complex Internal Threads
Engineered for flawless thread demolding. We deliver robust automated unscrewing systems driven by servo motors, hydraulic racks, or custom gear mechanisms.
- In-house manufacturing & strict quality control
- T1 Samples ready in as fast as 15 days
- Uncompromising ±0.002mm precision tolerance
Who We Are
Pioneers in Complex Injection Mold Technology
At GBM Mold Technology Co., Ltd., we specialize in overcoming the most demanding tooling challenges. Our core expertise lies in designing and manufacturing high-precision unscrewing molds that ensure perfect thread integrity and seamless high-volume production.
Operating from our state-of-the-art facility in Shenzhen, our team combines decades of tooling experience with cutting-edge CNC and EDM machinery. We provide a genuine one-stop solution from initial 24H DFM analysis through to final injection molding, strictly adhering to ISO9001 and TS16949 standards.
Learn More About UsTypes of Unscrewing Molds
Engineered solutions tailored to your specific product geometry, thread pitch, and production volume requirements.
Servo Motor Driven
Highly accurate rotational control for fine threads. Ideal for cleanroom environments and multi-cavity high-speed cycling.
Hydraulic Rack & Pinion
Robust and powerful unscrewing mechanism capable of handling deep threads, large diameters, and high torque requirements.
Ejector Actuated Gear
Cost-effective mechanical solution utilizing the injection machine's ejector stroke to drive the internal gear train.
Why Choose Us
Delivering world-class tooling precision and reliability to global manufacturing leaders.
24H DFM Analysis
Comprehensive Design for Manufacturability reports provided within 24 hours to optimize your part design for molding.
Rapid T1 Turnaround
Accelerated manufacturing processes allowing us to deliver T1 mold samples in as little as 15 days.
±0.002mm Precision
High-end Makino and Roeders CNC machines guarantee ultra-tight tolerances for complex thread geometries.
In-House Manufacturing
From design to final assembly and injection molding, everything is controlled under one roof for maximum security and quality.
Certified Quality
Fully ISO9001, TS16949, and TUV certified operations, ensuring compliance with the highest international standards.
Global Export
Extensive experience exporting premium molds to North America, Europe, and Asia with full localized support.
Trusted by Global Industry Leaders
Unmatched Capability in Complex Tooling
Our engineering methodology ensures that every unscrewing mold operates smoothly over millions of cycles, minimizing maintenance and downtime.
Advanced Gear Design
Custom-calculated gear ratios and pitch matching to prevent thread stripping and ensure perfect synchronization during ejection.
Premium Tool Steel Selection
Utilizing high-grade imported steels (such as S136, H13, and 1.2343) with specialized heat treatments for prolonged core and cavity life.
Rigorous Quality Control
Complete CMM dimension inspection and rigorous mold trials prior to shipment, guaranteeing plug-and-play performance upon arrival.
Know About GBM
Rooted in Shenzhen, the global hub of manufacturing, GBM combines a decade of engineering heritage with state-of-the-art facilities to deliver world-class tooling.
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Our Certifications
We stand behind our products with a robust warranty and clear refund policy, ensuring your investment is protected.
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Mastering the Art of Unscrewing Molds
Unscrewing molds are among the most complex tooling systems in the injection molding industry. They are specifically designed for plastic components that feature internal or external threads which cannot be simply ejected using standard knock-out pins or stripper plates.
At GBM Mold Technology, our engineering team excels in developing robust kinematic systems. By carefully synchronizing the pitch of the thread with the rotational speed of the core, we eliminate the risk of thread stripping or part deformation during the demolding process.
Key Mechanisms Explained
- Hydraulic Rack and Pinion: The most common and robust method. A hydraulic cylinder drives a rack that rotates a pinion gear attached to the threaded core. Excellent for high-torque applications.
- Servo Motor Drive: Provides programmable, high-precision control over rotation speed and position. Ideal for medical devices, cleanrooms, and multi-cavity high-speed production.
- Ejector-Driven Helical Gears: Utilizes the linear motion of the molding machine's ejector plate, translating it into rotational motion via high-helix lead screws. A highly cost-effective, self-contained solution.
Applications & Industries
Our unscrewing molds are widely utilized across various sectors, including packaging (bottle caps, closures, pumps), cosmetics, plumbing and pipe fittings, automotive connectors, and medical devices. Regardless of the complexity or resin type, we ensure dimensional stability and seamless production.
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Fill out the form below and our engineers will respond within 24 hours.
Support & Info
Frequently Asked Questions
Have questions about our unscrewing mold capabilities, lead times, or engineering processes? Find quick answers here, or contact our technical team directly for more specific inquiries.
Contact Technical SupportTo provide a precise quotation, we ideally need 3D CAD files (STEP, IGES, X_T), 2D drawings indicating tolerances, resin material specifications, estimated annual production volume, and surface finish requirements.
Lead times vary based on mold complexity and size. However, for standard unscrewing molds, our T1 sample lead time typically ranges from 15 to 35 days after DFM approval.
This depends on the thread depth, required torque, and injection machine capabilities. Hydraulic racks are great for high torque, servo motors offer unmatched precision and speed, while ejector-driven gears are highly cost-effective for simpler applications. Our engineers will recommend the best solution during the DFM phase.
Yes, we are a full-service provider. In addition to mold design and manufacturing, we have a dedicated injection molding facility equipped with advanced machinery to handle both low-volume and high-volume custom molding runs.
Let's Build Something Great Together
Partner with GBM Mold Technology for your next complex tooling project. Reach out to our experts today for immediate assistance.
Factory Address
Room 101, Jiumo Technology Park, Gangsheng Road, Yabian Village, Shajing Street, Baoan District, Shenzhen City
Phone Number
+86 15268369865
Email Address
Annie@gbminjection.com