We don't have a strict MOQ. However, please note that for orders under 1000 pieces, the unit price will be relatively higher to cover the fixed machine setup and tooling installation costs.
If you could share your estimated annual volume, we can offer a better pricing tier.
Please feel free to share your drawings (STP/STEP/IGS format) and your target quantity, so we can check and quote accurately.
Kingrun can provide most of the documentation required for your project, including:
Certificate of Material Analysis (CMA / MTC) — showing the chemical composition and mechanical properties of the materials used
Certificate of Conformance (COC) — confirming that the products meet the specified standards and your order requirements
Inspection reports — dimensional, visual and functional inspection results, issued according to your inspection plan or our standard QC procedure
RoHS and REACH compliance declarations — confirming compliance with EU environmental regulations
Other export documents where required — such as packing lists, commercial invoices, certificates of origin, and any additional documents needed for customs clearance
How we send them: We usually send copies of the COC, related inspection reports, RoHS/REACH declarations and other documents by email, so you receive them quickly and can review them before shipment. If you require original documents (for example, for customs clearance or your own quality records), we can also send them by courier upon request.
PPAP: We can supply PPAP (Production Part Approval Process) documentation if our clients need it. Please let us know the PPAP level you require (e.g., Level 1–5) and the specific elements you need, and we will prepare the package accordingly.
For custom die cast aluminum projects, Kingrun offers a fast-track prototyping and die casting mass production service. CNC-machined samples from solid blocks can be delivered in 7-15 days. If a formal die-casting tool is required, the mold fabrication and first article inspection (FAI) typically take 25-40 days, depending on the complexity of the aluminum components.
We generally accept payments via T/T (Telegraphic Transfer). Our payment terms are structured as follows:
- Tooling (Molds): 50% deposit, and the 50% balance is due after the first trial samples are approved.
- Production Orders: 50% deposit upon placing the order, and the 50% balance must be cleared prior to shipment.
Please talk with us case by case, we 'd pleasure to answer you any questions.
Yes, we always use high quality packaging stuffs such as cardboard box ,plastic pallet, export-grade plywood pallet .We also use specialized hazard packing for dangerous goods. Specialist packaging and non-standard packing requirements may incur an additional cost.
Shipping terms are flexible (EXW, FOB, CIF, or DDP). Customers may use their own freight forwarder, or Kingrun can provide a competitive shipping quote from reliable logistics partners once order details are confirmed.
Shipping fees are not fixed and vary based on several factors:
- The total weight and volume (CBM) of the order.
- The destination country and specific delivery address.
- Your preferred shipping method (Express, Air freight, or Sea freight). We are flexible with shipping terms (such as EXW, FOB, CIF, or DDP). You can either use your own freight forwarder, or we can provide you with a competitive shipping quote from our reliable logistics partners once your order details are confirmed.
While ADC12 is highly popular in Asia for its excellent castability and mechanical strength, A380 is the standard in the US market for general-purpose heat sinks. However, if your application requires maximum thermal conductivity, A360 or AlSi10Mg are superior choices. At Kingrun, we provide customized material analysis to balance cooling efficiency with structural integrity for your specific electronic enclosures.
Kingrun offers high flexibility for small-to-medium batch production (MOQ starting at 100~500 pcs), helping startups and SMEs reduce initial tooling costs and accelerate time-to-market with our rapid prototyping services.
Kingrun offers a wide range of surface finishing capabilities including powder coating, E-coating, sandblasting/shot blasting, and chrome plating for die-cast parts requiring aesthetic, functional, or protective coatings . Additional finishing options such as bead blasting, conversion coating, polishing, and anodizing are also available depending on part requirements .
Kingrun operates a full in-house QC laboratory equipped with a Hexagon 3D Coordinate Measurement Machine (CMM), X-Ray radioscope for porosity detection, spectrometer for raw material verification, hardness tester, surface roughness tester, profile projector, and leakage testing machines (including a dedicated helium leak test shop). These capabilities are backed by IATF 16949:2016 (automotive), ISO 9001:2015 certifications. Inspection processes include density control, micro-structure analysis, electrostatic powder thickness testing, grid adhesion testing, and cleanliness analysis via ultrasonic washing. Certificates of Conformance (COC) and related inspection reports are provided with shipments upon request.
Yes. Kingrun provides both heat treatment and secondary CNC machining as in-house post-casting processes. Our CNC capability includes milling, turning, drilling, and tapping, with 130 sets of 3-axis, 4-axis CNC machines, standard tolerances of ±0.05 mm (tighter tolerances available upon request), and typical lead times of 1–2 weeks for machining. This allows us to deliver die-cast parts machined to final dimensions as a single-source solution, rather than requiring customers to manage separate casting and machining suppliers. Heat treatment is performed internally as part of our production flow.
