Send Your Drawings. Get a Quote in 24 Hours.

2D/3D drawings (STEP, IGES, DWG or PDF) plus material, quantity and finish requirements. You will receive DFM feedback and a firm, itemized quotation within 24 hours.

Yes. Our MOQ starts at just 100 pieces, and we support pilot runs before mass production so you can validate fit and function first.

We are ISO 9001:2015 certified. Every batch is 100% inspected before packing, and we can provide IATF 16949, RoHS, REACH and material certificates with your shipment.

Samples ship in 3-7 days; mass production runs 15-25 days depending on process and volume. Because tooling is built in-house, we cut weeks off typical supplier lead times.

Absolutely. We sign NDAs before any drawing exchange, and tooling built for your project is used exclusively for your orders.

Yes — free with every quotation. Our engineers flag tolerance risks, thin walls, draft-angle issues and cost-down opportunities within 24 hours, before you commit to anything.

Yes. For urgent projects we compress sampling to as fast as 3 days and reserve priority production slots. Tell us your target date in the RFQ and we commit to a schedule in writing.

Typically 30% deposit with order confirmation, balance before shipment (T/T). We ship EXW, FOB Shenzhen or DDP to your door — with your forwarder or ours, air or sea.

Yes. First-article inspection (FAI) with full CMM dimensional reports, material certificates and photos is standard for first runs, and available for every batch on request.

Quotes vary with machine capability, tolerance, material and surface finish. Watch out for low base quotes that later add tooling, inspection or finishing fees — we provide a fully itemized quotation covering all of these within 24 hours, with free DFM feedback and no hidden charges.

Ask for real inspection reports, not just claims — we provide first-article inspection (FAI) with full CMM dimensional data and material certificates, standard on first runs. Start with samples shipped in 3-7 days to confirm fit and function before committing to mass production.

It depends on part geometry, quantity and tolerance. CNC machining covers 100 pieces to production volumes with tolerances to ±0.005 mm and no tooling investment, so it suits prototypes and tight-tolerance parts. Metal stamping is cost-efficient for flat or formed sheet-metal parts at repeated volumes, and die casting produces complex aluminum or zinc shapes in larger runs. Because we run all three processes in one Shenzhen factory, we compare them side by side and recommend the most economical option that still meets your spec — with free DFM feedback within 24 hours.

3-axis machines cut from one direction and suit prismatic parts with features on the top and sides, which makes them the most economical option. 5-axis machines reach five faces of the part in a single setup, so they suit complex contoured geometry, reduce re-fixturing errors and hold tighter accuracy on curved surfaces. We run 3, 4 and 5-axis machining to ±0.005 mm, and our free DFM feedback within 24 hours recommends the lowest-cost axis configuration that still meets your spec.

For most custom parts, standard linear tolerances plus callouts on critical features are enough. GD&T symbols such as flatness, position and concentricity pay off when parts mate in assemblies or rotate at speed. We read GD&T drawings daily, verify every symbol on our CMM, and our free DFM review flags over-tight tolerances that add cost without adding function.

Yes — mold cost is paid once. We design and build all die casting molds in-house, the mold is used exclusively for your project, and we maintain it in our factory between repeat orders, so reorders cost only the per-piece price. Combined with MOQ from 100 pieces and samples in 3-7 days, you can start small and scale once parts are verified.

In turning, the part rotates while a stationary tool cuts, which makes it the most economical process for round or cylindrical parts such as shafts, bushings, pins and connectors. In milling, the cutting tool rotates around a stationary part, suiting complex shapes, pockets and flat surfaces. Many precision parts need both in a single mill-turn setup. We run CNC turning and milling in one factory with tolerances to ±0.005 mm, and our free DFM feedback within 24 hours tells you which process meets your spec at the lowest cost.

Robot joint housings, actuator and reducer bodies, shafts, sensor brackets and end-effector or gripper components are common CNC machined parts. Aluminum 6061/7075 keeps moving parts light, while stainless steel and alloy steel handle load-bearing joints and shafts. Mating faces and bearing seats commonly require tolerances to ±0.005 mm, which we verify on our CMM. We machine these parts from MOQ 100 pieces, with samples shipped in 3-7 days so you can validate fit and function before scaling.

Only specify Ra values where they affect function — sealing faces, mating fits and visible cosmetic surfaces. Standard machined finish is Ra 3.2 um, which is sufficient and most economical for the majority of parts; Ra 1.6-0.8 um is common for fits and sealing faces, while anything finer typically needs grinding or polishing and adds significant cost. We routinely machine finishes down to Ra 0.8 um, verify with surface roughness testers, and our free 24h DFM review flags over-specified finishes that add cost without benefit.

Yes. Our in-house mold shop builds both aluminum and steel injection molds, so small-batch projects can use aluminum or pre-hardened steel tooling, which costs less and machines faster than hardened production steel. Because molds are designed and cut under the same roof as the molding cells, there is no third-party tooling markup and mold trials start within days of design approval. Send your 3D file (STEP/IGES/PDF) and we return a DFM report plus a firm quote covering tooling and per-part price within 24 hours; samples ship in 3-7 days and MOQ starts at 100 pieces.

Match the material to the duty: ABS is the low-cost default for indoor housings and consumer enclosures (good impact, excellent surface finish, but poor UV resistance); polycarbonate (PC) adds optical clarity, heat resistance to about 120 C and very high impact strength for lenses, guards and medical housings; nylon (PA6/PA66) offers the best wear and fatigue strength for gears, bushings and loaded mechanical parts, with glass-filled grades for under-hood use - but it absorbs moisture (PA6 up to ~8%), so avoid it for tight-tolerance parts in humid service. PC/ABS blends are a common middle ground. Send us your drawing and duty conditions and our free DFM report within 24 hours will recommend the resin; MOQ starts at 100 pieces with samples in 3-7 days.

Progressive dies run several operations (piercing, blanking, bending, forming) in one pass through a series of stations as coil stock feeds each stroke - ideal for high volumes where the per-piece cost drops sharply, but the die itself costs more upfront. Single-stage or compound dies do fewer operations per stroke, cost less to build, and suit lower volumes or simple flat parts. Our stamping line covers 25-400T presses with all dies designed and built in-house; send your drawing and annual quantity and we recommend the most economical die type with free DFM feedback within 24 hours. MOQ starts at 100 pieces.

Anodizing electrochemically grows a hard aluminum-oxide layer (typically 5-25 um) that keeps the metallic look, resists wear and corrosion, and suits functional or premium cosmetic surfaces - but color choice is more limited. Powder coating deposits a thicker polymer film (about 60-120 um) with richer colors, textures and strong UV durability, ideal for outdoor housings and brand colors, though the film is softer and can chip on sharp edges. Rule of thumb: anodize wear and mating surfaces, powder coat exteriors. We supply both finishes on CNC machined and stamped aluminum parts - specify your requirement in the RFQ and confirm it in the free 24-hour DFM report.

Design toward standard bar and plate stock sizes: you pay for the raw billet volume, not the finished part, so sizes close to standard stock cut material waste. Hold our tightest tolerance (+/-0.005 mm) only on critical features and leave the rest at standard tolerance, and increase batch size where possible since programming and fixture setup are one-time costs spread across every piece. Our free DFM report flags these savings before production starts.

Put a general tolerance callout such as ISO 2768-mK in the title block and individually dimension only the critical features (bearing fits, seal grooves, locating pins). Over-specifying every dimension to +/-0.01 mm can raise cost 50-200% with no functional benefit. We hold +/-0.005 mm on critical metal features, and our free DFM report confirms the right tolerance class for each feature before production.

Zero porosity is not achievable in die casting, so acceptance is agreed per zone at the RFQ stage, typically referencing ASTM E505/E155 radiographs. Sealing and pressure-tight surfaces require no connected porosity (individual pores usually limited to about 0.5 mm), while non-critical zones accept isolated pores up to ~2.5 mm. Our 160-800T machines use gated and overflow design plus process monitoring to keep porosity within the level agreed on your drawing.

Yes. Raw materials are verified against mill certificates at incoming inspection (IQC) before they reach a machine, and every order ships with pre-shipment (OQC) documentation: CMM dimensional reports on critical features, quantity and packaging checks, plus photos. IATF 16949-style reporting is available for automotive parts, and RoHS/REACH certificates can be supplied on request.