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ISO 9001 Certified Insert Molding Service with 300,000 – 800,000 Shots Mold Life for Brass Threaded Inserts M2-M12
| Place of Origin | Xiamen, China |
|---|---|
| Brand Name | KDET |
| Certification | ISO 9001:2015, IATF 16949 |
| Model Number | KD-IM-MS008 |
| Minimum Order Quantity | 500 pieces |
| Price | Based on part complexity and volume |
| Packaging Details | Custom PE bags + export cartons + pallets |
| Delivery Time | 15-30 working days mold; 7-15 days production |
| Payment Terms | T/T, L/C at sight, PayPal |
| Supply Ability | 5,000,000 pieces per year |
Product Details
| Insert Types | Brass Threaded M2-M12, Steel Bushings, Electrical Contacts, Custom Stampings | Insert Materials | Brass, Stainless Steel 304/316, Carbon Steel, Copper, Aluminum |
|---|---|---|---|
| Loading Method | Manual, Semi-automated, Robotic With Vision Verification | Mold Material | H13, S136, 718H With Wear-resistant Coatings |
| Plastic Materials | PA66 GF30, PBT GF30, PC, ABS, PP, POM, PEI | Mold Life | 300,000 – 800,000 Shots |
| Testing | Pull-out Force, Torque-to-failure, Thermal Cycling | Certification | ISO 9001:2015, IATF 16949 |
| Highlight | ISO 9001 Certified Insert Molding Service,300,000 – 800,000 shots Mold Life Insert Molding Service,Brass Threaded Inserts M2-M12 Insert Molding Service |
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Product Description
KDET specializes in insert molding services that combine metal components with thermoplastic materials to create integrated, high-strength assemblies in a single manufacturing step. Our insert molding capabilities cover threaded brass inserts, steel bushings, electrical contacts, custom metal stampings, and machined components — all precisely positioned within the mold cavity and encapsulated with engineering-grade thermoplastics. Since 2007, we have produced millions of insert-molded components for automotive, electronics, industrial equipment, and consumer product applications.
Company Strength: 18 years of injection molding excellence since 2007 | ISO 9001:2015 & IATF 16949 certified | 40-50 skilled professionals | 80%-90% export to 30+ countries | 5,000,000+ pieces annual capacity | Full in-house tooling, molding, QC, and logistics.
Product Solutions
KDET provides world-class insert molding solutions engineered for the demanding requirements of global OEM manufacturers. With 18 years of industry experience and a fully integrated manufacturing facility in Xiamen, China, we deliver end-to-end solutions from engineering consultation and DFM analysis through mold manufacturing, production, quality assurance, and global logistics. Our structured project management approach ensures clear milestones, transparent communication, and documented quality at every stage.
Key Features- Precision Insert Placement: Our molds feature precisely machined insert pockets with tolerances of ±0.02mm, ensuring consistent insert positioning within the finished part. Automated and manual loading options accommodate production volumes from prototype to millions annually.
- Threaded Insert Expertise: We stock standard brass threaded inserts (M2 through M12) and can accommodate custom inserts per your specifications. Insert retention strength is validated through pull-out and torque testing per project requirements.
- Multi-Insert Capability: A single molded part can incorporate multiple inserts of different types, sizes, and materials — for example, combining brass threaded inserts, steel locating pins, and copper electrical contacts within one molded component.
- Insert Pre-Heating: For applications requiring enhanced plastic-to-metal adhesion, we offer insert pre-heating systems that bring metal inserts to optimal bonding temperature immediately before mold placement, reducing thermal shock and improving bond strength.
- Automated Insert Loading: For high-volume production exceeding 100,000 pieces annually, we implement robotic insert loading systems with vision verification to ensure 100% insert presence and orientation before each molding cycle.
- Insert Design Support: Our engineering team provides insert design recommendations including knurling patterns, undercut geometry, and surface treatments that optimize mechanical interlocking between the metal insert and plastic matrix.
| Parameter | Specification |
|---|---|
| Insert Types | Brass threaded (M2-M12), Steel bushings, Electrical contacts, Custom stampings, Machined components |
| Insert Material | Brass, Stainless Steel (304/316), Carbon Steel, Copper, Aluminum |
| Insert Placement Method | Manual, Semi-automated, Robotic with vision verification |
| Plastic Materials | PA66 GF30, PBT GF30, PC, ABS, PP, POM, PEI, PPS |
| Insert Retention Testing | Pull-out force, Torque-to-failure, Thermal cycling, Vibration testing |
| Mold Material | H13 (52-54 HRC), S136, 718H — with wear-resistant coatings on insert pockets |
| Injection Machine | 80T – 500T with insert loading station |
| Mold Life | 300,000 – 800,000 shots |
| Production Volume | 1,000 to 5,000,000+ pieces annually |
- Automotive: Sensor brackets with threaded mounting inserts, engine cover attachment points with brass threads, wiring harness clips with metal retention springs, and pedal assemblies with steel bushing inserts.
- Electronics: PCB mounting bosses with threaded brass inserts, connector housings with embedded contacts, battery compartment terminals, and heat sink mounting brackets with thermal interface inserts.
- Industrial Equipment: Pump housings with threaded pipe connections, valve bodies with metal seat inserts, conveyor components with bearing inserts, and machinery guard panels with threaded mounting points.
- Consumer Products: Appliance housings with threaded assembly inserts, furniture connector blocks with metal threads, power tool bodies with bearing seat inserts, and sports equipment with metal reinforcement inserts.
- Electrical: Circuit breaker housings with embedded bus bars, switch bodies with contact inserts, terminal blocks with brass connectors, and junction box mounting plates with threaded earth points.
Industry Success Case: A US-based industrial controls manufacturer needed 500,000 connector housings annually with 4 brass M3 threaded inserts and 2 copper contact strips per part. We designed a family mold with semi-automated insert loading stations, achieving 45-second cycle time with 100% insert presence verification via limit switches. The insert-molded assembly eliminated 3 secondary operations (ultrasonic insertion, staking, and crimping), reduced total part cost by 22%, and has maintained zero insert-related field failures across 3 million delivered units.
Production Cycle
- Engineering Review & DFM: 2-5 working days — Design analysis, simulation, and feasibility report
- Mold Design & Approval: 3-7 working days — Full 3D mold design for client sign-off
- Mold Manufacturing: 15-30 working days — Precision machining, EDM, assembly
- Mold Trial & Samples: 2-3 working days — T0 samples with dimensional inspection report
- Production & QC: 7-15 working days — Full production with SPC and in-line inspection
- Packaging & Shipment: 2-5 working days — Professional export packaging with full documentation
| Parameter | Details |
|---|---|
| Minimum Order Quantity | 500-5,000 pieces depending on part size and complexity |
| Mold Lead Time | 15-30 working days |
| Sample Lead Time | 3-5 days with existing molds; 5-15 days with new tooling |
| Production Lead Time | 7-15 working days after sample approval |
| Payment Terms | T/T 30% deposit, 70% before shipment; L/C at sight available |
| Shipping Methods | Sea freight (15-40 days), Air freight (3-7 days), Express (3-5 days) |
| Packaging | Custom PE bags + export cartons + fumigated pallets |
Q: What types of inserts can you mold into plastic parts?
A: We work with standard and custom inserts including brass threaded inserts (M2-M12), stainless steel and carbon steel bushings, electrical contacts (copper, brass, phosphor bronze), custom metal stampings, and precision machined components. We also accommodate customer-supplied inserts with full incoming inspection.
Q: How do you ensure inserts stay in position during injection?
A: Mold insert pockets are precision-machined with interference fits of 0.01-0.03mm for secure retention. For critical applications, we use mechanical retention features (spring-loaded pins, magnets) and verify insert presence via limit switches or vision systems before each cycle. The injection gate is positioned to direct melt flow around rather than against the insert to prevent displacement.
Q: What is the minimum and maximum insert size you can handle?
A: We have processed inserts ranging from 2mm diameter micro-contacts to 150mm x 50mm steel reinforcement plates. The primary constraint is that the insert must fit within the mold cavity with adequate wall thickness of plastic material around it (typically minimum 1.5mm for structural integrity).
Q: Can insert molding replace post-molding heat staking or ultrasonic insertion?
A: In most cases, yes — and with better results. Insert molding creates a stronger mechanical bond because the plastic encapsulates the insert in its molten state, flowing into every knurl and undercut. It also eliminates secondary operations, reduces labor cost, and provides more consistent insert alignment compared to post-molding insertion methods.
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