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ISO 9001 Certified Secondary Operations Injection Molding Service with Ultrasonic Welding 20kHz/35kHz and Pad Printing ±0.1mm Registration
| Place of Origin | Xiamen, China |
|---|---|
| Brand Name | KDET |
| Certification | ISO 9001:2015, IATF 16949 |
| Model Number | KD-SO-PP020 |
| Minimum Order Quantity | 500 pieces |
| Price | Based on complexity and volume |
| Packaging Details | Custom PE bags + export cartons + pallets |
| Delivery Time | 15-30 days mold; 7-15 days production |
| Payment Terms | T/T, L/C, PayPal |
| Supply Ability | 5,000,000 pieces per year |
Product Details
| Pad Printing | 1-4 Color, ±0.1mm Registration | Hot Stamping | Metallic And Pigmented Foils |
|---|---|---|---|
| Ultrasonic Welding | 20kHz/35kHz, Custom Horn Design, Hermetic Seals | Heat Staking | Insert Installation M2-M8 |
| Assembly | Screw Driving, Snap-fit, Adhesive Bonding, Functional Testing | Testing | Pull Testing, Leak Testing, Torque Testing, Visual Inspection |
| Volume | 500-500,000+ Assemblies/year | Certification | ISO 9001:2015, IATF 16949 |
| Highlight | ISO 9001 Certified Secondary Operations Injection Molding Service,Ultrasonic Welding 20kHz/35kHz Injection Molding Secondary Operations,Pad Printing ±0.1mm Registration Post-Processing Injection Molding Service |
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Product Description
KDET offers comprehensive secondary operations and post-processing services for injection molded components — providing a true one-stop manufacturing solution that eliminates the need to coordinate multiple vendors. From pad printing and hot stamping through ultrasonic welding, heat staking, and complex assembly, we deliver finished, ready-to-use components and sub-assemblies. Since 2007, our integrated secondary operations have helped clients simplify their supply chains, reduce logistics costs, and accelerate time-to-market.
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 across 5 continents | 5,000,000+ pieces annual capacity | Full in-house tooling, molding, QC, and logistics from Xiamen, China.
Product Solutions
KDET delivers world-class secondary operations solutions engineered for the demanding requirements of global OEM manufacturers. With 18 years of industry experience, ISO 9001:2015 and IATF 16949 certifications, and a fully integrated manufacturing facility in Xiamen, China, we provide comprehensive solutions from initial engineering consultation through tooling, production, quality assurance, and international logistics. Our structured project management methodology ensures transparent milestones, clear communication, and documented quality verification at every stage.
Key Features- Pad Printing: Our multi-color pad printing capabilities (1-4 colors) apply logos, markings, and decorative patterns to flat, curved, and irregular surfaces with precision registration within ±0.1mm. We use UV-curable and solvent-based inks with full adhesion testing per project requirements.
- Hot Stamping & Foiling: Metallic and pigmented foil application creates premium decorative finishes on plastic surfaces. Our hot stamping equipment handles flat, cylindrical, and gently curved surfaces with consistent coverage and adhesion validated through tape testing.
- Ultrasonic Welding: Our ultrasonic welding systems (20kHz and 35kHz) join thermoplastic components with clean, strong bonds achieving hermetic seals where required. We design and manufacture custom welding horns optimized for your specific part geometry.
- Heat Staking & Swaging: Thermal insertion of threaded inserts and heat staking of plastic posts to retain PCBs, metal brackets, and other components — with precise temperature and force control for consistent stake quality across production volumes.
- Complex Assembly: Our assembly team performs multi-step assembly operations including snap-fit assembly, screw driving (with torque monitoring), adhesive bonding, O-ring and gasket installation, and functional testing — delivering fully assembled modules ready for your production line.
- Quality Verification: Every secondary operation includes appropriate quality verification: pad print adhesion testing, ultrasonic weld pull testing, assembly functional testing, and final visual inspection under 2000-lux lighting — all documented in your quality records.
| Parameter | Specification |
|---|---|
| Pad Printing | 1-4 color; ±0.1mm registration; UV-curable and solvent-based inks; Flat, curved, irregular surfaces |
| Hot Stamping | Metallic (gold, silver, chrome, copper) and pigmented foils; Flat, cylindrical, gently curved surfaces |
| Ultrasonic Welding | 20kHz and 35kHz systems; Hermetic seals; Custom horn design and manufacturing; Pull testing to failure |
| Heat Staking | Threaded insert installation (M2-M8); PCB and bracket retention staking; Temperature and force monitoring |
| Screw Driving | Torque-controlled electric drivers; Torque range 0.1-10 Nm; Angle monitoring; Torque data logging |
| Adhesive Bonding | Cyanoacrylate, Epoxy, UV-cure, Silicone, Structural acrylic; Jig and fixture assembly |
| Testing Capabilities | Pull testing (0-5000N), Leak testing (pressure decay), Functional cycling, Torque testing, Visual inspection (2000 lux) |
| Assembly Volume | 500 to 500,000+ assemblies annually; Manual, semi-automated, and automated stations |
| Packaging | Individual polybag, Clamshell, Custom carton, Palletization; Barcode labeling; Kitting available |
- Automotive Components: Hot-stamped logos on interior trim, pad-printed switch markings, ultrasonically welded fluid reservoirs, heat-staked threaded inserts in sensor brackets, and fully assembled sub-modules with functional testing.
- Medical Devices: Pad-printed measurement scales and instructions on diagnostic devices, ultrasonically welded sealed housings, heat-staked PCB assemblies, and fully assembled sterile-ready device sub-assemblies.
- Consumer Electronics: Hot-stamped metallic logos on device housings, pad-printed button legends and regulatory markings, ultrasonically welded sealed enclosures, and fully assembled electronic sub-assemblies with functional testing.
- Home Appliances: Hot-stamped control panel graphics, pad-printed water level indicators, ultrasonically welded detergent dispenser assemblies, and fully assembled appliance modules delivered in retail-ready packaging.
- Industrial Products: Pad-printed serial numbers and calibration data, ultrasonically welded sealed enclosures, heat-staked metal reinforcement inserts, and fully assembled industrial modules with documented QC testing.
Industry Success Case: A North American medical device company was managing 4 separate suppliers for their diagnostic device: molding (China), pad printing (local, USA), ultrasonic welding (local, USA), and final assembly (Mexico). We consolidated all operations — molding the 7 plastic components, pad printing the measurement scales (3 colors with ±0.1mm registration), ultrasonically welding the sealed housing (validated to IP67), and performing final assembly with functional testing. The consolidated supply chain reduced total lead time from 12 weeks to 5 weeks, eliminated 3 international shipments, and reduced total manufactured cost by 27%. The client achieved a 40% reduction in supply chain management overhead.
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, heat treatment, 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 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 is the minimum order quantity for secondary operations?
A: Secondary operations can be performed on quantities as low as 500 pieces — the same MOQ as our injection molding production. Setup costs for pad printing, hot stamping, and ultrasonic welding are amortized into the piece price. For very small quantities (under 500), manual processes are available at a slight premium.
Q: Can you match our existing pad print colors and registration?
A: Yes, we match ink colors to Pantone, RAL, or your physical sample. Registration tolerance of ±0.1mm is standard, with ±0.05mm achievable for high-precision applications. We maintain your ink formulations and printing fixtures for consistent results across production batches spanning multiple years.
Q: Do you design and manufacture your own ultrasonic welding horns?
A: Yes, our in-house toolroom designs and manufactures custom ultrasonic welding horns optimized for your specific part geometry. We use FEA (Finite Element Analysis) to optimize horn design for uniform amplitude distribution and minimal stress concentration, ensuring long horn life and consistent weld quality.
Q: How do you ensure consistent quality across secondary operations?
A: Each secondary operation has a documented quality control plan with defined inspection criteria, sampling frequency, and acceptance standards. Critical operations (ultrasonic welding, heat staking) are validated through destructive testing (pull testing, cross-sectioning) during process qualification. In production, we use attribute and variable data collection to monitor process stability and trigger corrective action before out-of-spec conditions occur.
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