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Mold Processing Center

Innovation through R&D

KST’s mold processing center is outfitted with a complete range of CNC machines, including CNC wire cutter, CNC internal grinding machines as well as 2D and 3D coordinate measuring machines. These are best-in-class CNC machines imported from Germany, Switzerland, Japan, and the United States, each recognized for their dependability, stability, precision, and performance.
In addition, our mold processing center is manned by approximately 50 experienced technicians and engineers. To support our mold processing center, we have a fully integrated automatic storage and retrieval system (AS/RS) to efficiently manage over 4,000 molds and more than 30,000 inventory items and finished products.
KST uses a wide range of industry-accepted software including AUTOCAD, Pro-Engineer, Uni-Graphic, and ABAQUS. These CAD/CAM engineering and product lifecycle management software help us improve designs, strengthen our manufacturing capabilities, assist in product development and lifecycle management.
KST has accumulated almost 50 years of experience in developing products leveraging our core expertise in mold design. We have approximately 30,000 products and more than 4,000 sets of molds. We are here to work on your designs or collaborate to develop new ones. KST is your ideal engineering & manufacturing partner.
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We provide technical and engineering services required to manufacture plastic, silicone rubber, liquid silicone rubber injection molds. We produce products for customers from many different verticals including automobile, lighting, medical, agriculture, avionics industries.
We have experienced engineers, processes, and state of the art equipment waiting to work with you to develop your designs
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Stamping Die & Injection Mold Processing Center

Step 1

Mold Design

TWNCCAD, Alphacam

  1. After the Customer provides 3D Data of the product, KST designs the mold according to required material characteristics and production requirements.
  2. A injection mold is usually composed of two halves, the fixed cavity side, and the moving core side. The core side slides open and close.
  3. While designing the mold, we will use Alphacam CAD/CAM software to simulate the process and validate mold design.

Step 2

Mold Scheduling & Dispatch

ERP / Automated Storage Retrieval System (ASRS)

  1. Production Management receives and registers the design drawing.
  2. ERP system provides estimate, projects delivery schedule and assigns barcode identification
  3. Provides Input-output processing operation control

Step 3

CNC Machine Center (MC)

Kafo VMC-850

Injection Mold

  1. Order 3rd Party Steel Blocks for cavity and core main inserts
  2. Use a milling machine to mark the position of screw holes and cooling lines
    Drill through holes for cooling lines
  3. Block the end of through-holes with aluminum plugs to form cooling loops
  4. Cut off residual aluminum

Stamping Mold

Step 4

CNC In-hole Grinding

GE Fanuc Series 16i-M, Hauser S45 Jig Grinder

CNC machining of the core and cavity insert can take several hours each.

Step 5

CNC Wire Cutting EDM

TWNCAD, Agie Cut200, Seibu M500S

We use wire EDM machines to cut through holes for ejectors. The precise ejector can go through holes to ensure accurate sizing thus avoiding flash issues during the injection molding process.

Step 6

CNC Optical Grinding & Forming

Waida PGX-2500SP

This SPG-X standard profile optical grinder offers improved ease of operation and visibility. The projector is manufactured under rigorous quality control to deliver visibility and reassuring support. The new standard-equipped LED transmitted illumination provides clear projections. Meets various grinding needs due to a wide range of optional equipment available

Step 7

CNC 3D forming – Electrode Making

Vertical Milling & Boring Machining Center AV-70S

  1. Complex shapes in steel can not be achieved by CNC milling. Instead, this can be achieved using Electrical Discharge Machine (EDM). The electrodes are important to the EDM process.
  2. We use CNC machines to cut the copper blocks which can take several hours to achieve the specified shape.
  3. The quantity of electrodes required is determined by the complexity of the mold. For instance, hundreds of electrodes are required for some molds.
  4. Each piece is individually CNC machined, and subsequently deburred

Step 8

CNC Die-sinking EDM

Mitsibushi EA8PV Die-sinking EDM

Material is eroded from the material workpiece by means of a pulse discharge between electrodes and steel insert submerged in water.  The electrode and steel insert are close to each other but never touch.

Step 9

Plane Grinding

Emery paper, wet stone, and ultrasound are used to polish and remove EDM and CNC process imperfections and provide a uniform finish of the cavity and core/die form.

Step 10

Precision Coordinate Measuring Machine (CMM)

Zeiss Prismo

Our accuracy lab provides high-speed scanning and maximum precision and follows ISO quality standards entirely. Our coordinate measuring machines measure with uncertainty as low as 0.9+L/350 μm. Computer Aided Accuracy (CAA) corrects all dynamic influences on the machine to optimize precision even during high-speed scanning with tolerances of one micrometer or less.

Step 11

Mold Assembly

When all parts of the mold are primed and ready, they are assembled, completing the injection/die-sinking mold manufacturing process.

Step 12

Mold Trial & Testing

Place the mold into the plastic injection machine and setup proper parameters, and produce the trial run product for quality assurance & testing.