• Unscrewing Injection Molding Thread Undercut Injection Molding
Unscrewing Injection Molding Thread Undercut Injection Molding

Unscrewing Injection Molding Thread Undercut Injection Molding

Product Details:

Place of Origin: China
Brand Name: FORWA
Certification: ISO9001:2008 ISO14001:2004
Model Number: F16123

Payment & Shipping Terms:

Minimum Order Quantity: 1set
Price: negotiation
Packaging Details: Mold : packed by wood carton , Plastic parts : box
Delivery Time: 35 days T1
Payment Terms: T/T
Supply Ability: 50sets per month
Get Best Price Contact Now

Detail Information

Product Name: Plastic Injection Mold Type: Unscrewing With Hydraulic Cylinder
Cavity: 1*1 Core/Cavity Material: 1.2343/1.2311/SKD61,S136,P20,H13,738H ...
Surface Finishing: VDI3400 27 Runner System: Cold Runner
Standard: HASCO Raw Material: PA6 GF35
High Light:

injection molding undercuts


injection molding internal threads

Product Description

Unscrewing Injection Molding Thread Undercut Injection Molding


Best Method of molding undercut THREAD injection molding thread




Auto-unscrewing Size Depends on customers requirement (2D/3D)
Color multi
Function Thread with hydraulic cylinder

With manual or auto unscrewing.

Hydraulic cylinder: imported or Chinese brand

Brand Canon, Epson, Brother, Sony, Tyco, Audi, Honda, Toyota and Flextronics, Fuji Xerox, HP, JST, Kyocera, Panasonic, BMW, Sanyo, ZTW
Mould Type Prototype mold and series/production mold
Standard Hasco,DME,LKM,FUTABA,other
Cavity/Core material 1.2343/1.2311/SKD61,S136,NAK80,H13,738H,other
Injection Cold runner/hot runner(Moldmaster,YUDO,INCOE,HUSKY,MOLD-TIP,other
Cycle life 500k~1000k shots
Service One stop service Design- Mockup- Manufacturing- Assembly

CAD/CAM technical platform and perfect engineering data switching system which enable us to have elastic choices to offer service to our customers.

UG 4.0

DXF, DWF, PRT, SAT, IGES or STE format for mold design and layout

Mockup Rapid laser mockup /CNC mockup process
Manufacturing Prototype mold,production mold,plastic parts production

Latest precise detecting instruments

Well trained and skillful inspectors

Timely feedback to manufacturing department

High yield rate and timely delivery





Sea or air shipment for Mold/mass production



Forwa-Mould , locating in Dongguan, China, is a professional plastic injection mould manufacturer with years experience in this field. We can provide high precision complex hardened moulds, prototype and soft moulds.

We equipped high speed CNCs, Wire cuts in house. We use software (i.e. UG, Pro-E, IGS, Master Cam, AutoCAD, and Solidwork ) for mould design and MoldFlow analysis for our customers before mould manufacturing. Standard components we use to build the mould are purchased from DME, HASCO etc. Also, COC for all steel we purchase will be provided.


Mold Threads empowers engineers to achieve their vision for custom molded parts in function, durability, and quality while maintaining the integrity of the design.


Mold Threads' passion for quality has made us a leader in the design, tooling, and molding of injected molded parts.Component parts that are critical in the manufacturing of products for a wide arrage of industries and applications including:


  • Medical
  • Electronics
  • Automotiv
  • Industrial
  • Consumer
  • Telecommunications
  • Environmental
  • Computers
  • Point-of Purchase
  • Military
  • Construction
  • Security

Producing plastics parts with undercuts presents distinct challenges for molders. Undercuts are protrusions or recessions in a part that prevent the mold, after the part is formed, from sliding away along the parting direction. These features inhibit the direct removal of the core, and as a result, generally necessitate using an additional mold piece, such as a side-core or an internal core lifter, to form the shape.

Undercut designs are often used to create threaded parts, such as screw-on bottle caps, snap-on products such as lipstick containers, and a variety of consumer, medical, automotive, and other products. Threaded caps illustrate well the complexities associated with undercuts. After the cap is formed, the threads of the part and the threads of the core are intermeshed and must be disengaged before the core can be pulled out and the cap removed from the mold.

Molders have developed a variety of methods for molding undercut or threaded parts—some as simple as unscrewing the part by hand or machining the undercuts in a separate operation—that range widely in cost-effectiveness and efficiency. This article will present some of the recent technology advancements that give molders better, more cost-efficient methods of producing undercut or threaded parts.


Unscrewing molds are among the most complex of all injection molds, requiring considerable technical savvy to build and maintain. They are usually built for many years of production and are considered a long-term investment for producing high-volume parts.

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