Custom Metal Parts FAQ
Sourcing custom metal parts raises many questions. Delivery, materials, samples, MOQ and quality all matter. This FAQ answers them from a working metal fabrication factory. Our Nanpi base has produced full-process projects since 1999. Need a faster answer? Send drawings for a free quote within 8 hours.
-
Q : How do we communicate during the project?
A : Email and WhatsApp work best. English-speaking engineers answer technical questions directly. Production updates and photos arrive at key stages. Drawing feedback within 8 hours. Weekly updates during long production runs. Video checks before shipment. No middlemen, no translation loss. Contact us on WhatsApp or email to start.
-
Q : How do I start a custom metal parts project?
A : Send drawings with material and quantity. You receive a quote within 8 hours. Approve samples, then production runs with staged quality checks. Step 1: submit drawings and target volume. Step 2: review engineering feedback and price. Step 3: approve samples and start production. The whole journey runs through one partner. Send your first inquiry to begin.
-
Q : What if my parts arrive defective?
A : Share photos and we review the case immediately. Defective parts are reworked or remade. Claims are handled with inspection records, not arguments. Photos speed up root-cause analysis. Rework or remake follows the root cause. Corrective actions prevent repeats. Quality records back every claim. Report any issue within the agreed warranty window.
-
Q : How do you protect my design and intellectual property?
A : Drawings are treated as proprietary information. We sign non-disclosure agreements on request. Your tooling and designs remain yours forever. Files are shared only with your project team. Tooling storage is secure and labeled. No design data is reused for other buyers. Add an NDA request to your first email. We protect your project from day one.
-
Q : Which shipping documents do you provide?
A : Every shipment includes a packing list, commercial invoice and certificate of conformity. Material certificates and inspection reports are available on request. Documents match your destination rules. Customs paperwork is prepared correctly. Electronic copies arrive before the goods. Tell us your document requirements when ordering. We handle export paperwork for you.
-
Q : How is quality controlled during production?
A : Inspection runs at four stages. Incoming material, first-off, in-process and final checks cover every order. Calibrated gauges and CMM equipment support the process. First-off approval happens before mass production. In-process patrols catch drift early. Final inspection reports are shared on request. Our ISO 9001:2015 system keeps records for every batch.
-
Q : Can you ship my order in batches?
A : Yes. Split deliveries are standard practice. Every batch passes the same quality checks. Shipping documents cover each partial shipment. Batches match your production schedule. Inventory pressure stays low. Quality records follow every batch. Plan your delivery schedule in the order confirmation. We keep each promised date.
-
Q : Can you meet urgent delivery deadlines?
A : Yes. Press time is reserved for confirmed urgent orders. Express freight shortens the transit window. 97.9% of our shipments leave on time. Urgent orders are flagged in production. Air and express freight are available. Progress updates come with photos. Tell us your deadline when sending drawings. We confirm feasibility before you commit.
-
Q : What is your standard lead time?
A : Most orders run within one to eight weeks. Simple samples can ship in days. Every quotation states a confirmed delivery date. Tooling time adds for new stamping dies. Material stock affects the schedule. Production time is reserved after order confirmation. Need a firm date? Request a quote and we will lock the delivery week.
-
Q : Do you provide samples before mass production?
A : Yes. Samples verify material, finish and fit before the full order. Approval of samples starts production. No surprises later. Photos and video confirm every sample. Sample fees depend on tooling. Fees are quoted in advance. Sample quality matches production quality. Request a sample with your first inquiry.
-
Q : What is your MOQ?
A : There is no fixed MOQ. Prototypes, small batches and high-volume runs are all welcome. Tooling and unit price adjust to your real quantity. Small batches prove the design first. Volume orders enjoy the best unit price. Tooling stays stored for repeat orders. Tell us your target quantity when asking for a quote. The price will match your plan.
-
Q : How can I lower my metal part cost?
A : Share target volumes early. Relax tolerances on non-critical features. Use standard sheet thickness and bend radii. Small design changes create large savings. Standard sizes avoid material waste. Simple tooling shortens lead time. Combined processes cut handling cost. Our engineers review every drawing before quoting. Ask for cost-down suggestions with your inquiry.
-
Q : What affects custom metal part prices?
A : Material grade, quantity, tolerances, tooling and surface finish drive the price. Process combination also changes cost. We break every item down in the quotation. Quantity spreads tooling cost. Tight tolerances add inspection time. Special finishes raise material and labor cost. Compare our transparent quotes with other suppliers. Send drawings and see the difference.
-
Q : How fast do you send quotations?
A : Standard quotes go out within 8 hours on working days. Complex multi-process projects receive a confirmed reply time instead. No silent waiting. Engineering review runs before quoting. Tooling and finishing are itemized. Quote validity and terms are stated clearly. Send your drawings today. Your free quote lands within 8 hours.
-
Q : What information do you need for a quote?
A : Send drawings with material, quantity, finish and tolerances. PDF, DWG/DXF, STEP and IGES files all work. More detail means a more accurate price. 3D models help most for complex parts. Target volume changes unit price. Finish requirements affect cost and lead time. Missing drawings? Our team can still discuss your project by email or WhatsApp. Request your free quote now.
-
Q : Can you provide material certificates?
A : Yes. Mill certificates and material test reports are available on request. Every custom metal parts order can ship with these documents. Mill certificates confirm material grade and batch. Test reports show mechanical properties. Incoming material is verified before production. Request certificates when you send your inquiry. We include them with your shipment documents.
-
Q : When should I choose casting over sheet metal fabrication?
A : Casting suits complex three-dimensional shapes made in volume. Sheet metal fabrication wins on lighter weight and lower tooling cost. Your quantity and geometry decide the answer. Casting: complex curves, thicker walls, higher tooling cost. Sheet metal: lighter parts, faster tooling, lower weight. Hybrid parts combine castings with stamped pieces. We offer both processes. Send your drawing, and we will compare cost and function honestly. Start with metal casting or sheet metal fabrication.
-
Q : What is the difference between stamping and deep drawing?
A : Stamping cuts and forms flat sheet metal using dies. Deep drawing pulls sheet metal into deeper hollow shapes. Deep drawing suits cups, shells and housings. Stamping covers blanking, piercing and simple forming. Deep drawing creates one-piece hollow parts. Both processes share our 80–400 ton presses. Not sure which fits your part? Send drawings. Our engineers reply within 8 hours with a process recommendation. See our stamping and deep drawing service page first. For the tooling, tonnage and wall-thickness detail behind that choice, read the full stamping vs deep drawing comparison.
-
Q : What does a full-process metal fabrication supplier mean?
A : A full-process supplier runs every production step under one roof. Stamping, deep drawing, cutting, welding, CNC and finishing happen in-house. You avoid splitting orders between vendors. One drawing, one responsible partner. Tolerances transfer cleanly between steps. Delivery risk drops without hand-off delays. Xinjiuxinji is a full-process custom metal fabrication supplier. See our [services overview → /service/] and request a quote.
-
Q : Where is your production base located?
A : Our production base sits in Nanpi County, Hebei Province, China. Nanpi is near Beijing and Tianjin. Export logistics from this area are fast and reliable. The base covers about 9,000 square meters. A 5,000-square-meter workshop holds our main stamping and fabrication lines. Two hours by road from major ports. Easy for factory audits and visits. Raw materials from nearby steel mills. We welcome buyers who want to visit the shop floor. [Contact us → /contact-us/] to arrange a tour or request a quote.
-
Q : Has Xinjiuxinji obtained ISO 9001 certification?
A : Yes. Our Nanpi production base holds ISO 9001:2015 certification. The certificate covers custom metal parts made for global buyers. ISO 9001:2015 sets our quality system. Incoming material checks, in-process inspection and final testing all follow written procedures. Certificate copies are available on request. Audits and customer visits are welcome. Quality records stay on file for every order. Our quality commitment is one reason buyers trust us for repeat custom metal parts projects. CTA:Verify our certificates on [our certificates page → /our-certificates/]. Send drawings for a free quote within 8 hours via the [contact page → /contact-us/].
-
Q : How long has Xinjiuxinji been established?
A : Our Nanpi production base was founded in 1999. Xinjiuxinji was registered in 2022 to serve overseas buyers directly. All orders are produced at the same Nanpi base. The base has grown for over 26 years. It now covers about 9,000 square meters. 120+ people work there, including 19 engineers. Long history means mature processes. Repeat buyers trust our delivery records. 97.9% of shipments leave on time. Experience shows in every custom metal parts order. Contact us to discuss your project.
-
Q : How do you pack metal parts for export?
A : Parts are wrapped with bubble wrap or pearl cotton. Fragile surfaces get foam or EVA inserts. Five-layer export cartons and plastic edge guards prevent damage. Delicate surfaces use custom foam inserts. Partitions separate heavy pieces. Transportation marks follow export rules. Packaging standards are stated in every quotation. Fragile finishes get extra protection at no guesswork.
-
Q : Which regions are covered by our services?
A : We serve buyers in the USA, Germany, the UK, France, Ireland, Australia, New Zealand, Thailand, India, Singapore and Saudi Arabia. Our export team works in English every day. Europe and North America are our largest markets. Time-zone overlap makes communication easy. Shipping documents follow each destination’s rules. Wherever your project is, send drawings first. Get a free quote within 8 hours on the [contact page → /contact-us/].
Certified quality management system for custom metal stamping & sheet metal fabrication.
Material testing for EU hazardous substances (STAR TECH Lab Report No. ST20260130007-4).
Independent on-site inspection report covering 9,000m² factory & manufacturing capacity.
Explore full scan originals of business license, ISO 9001, RoHS, and factory audit reports.