How should buyers evaluate logistics and lead times for shipments from Taichung?

The lead time for prototype parts mainly depends on material availability and process complexity. Taking Yuan Shun Li's factory in Tanzi, Taichung as an example, turned parts using common stock materials such as aluminum alloy 6061 or stainless steel 304 typically take about 5–7 working days from material preparation to final inspection before shipment. Milled parts or mill-turn composite parts take about 7–10 working days due to longer programming and fixture setup times. If materials need to be specially ordered or surface treatments (such as anodizing or passivation) are outsourced, lead time increases by 3–7 days. Buyers should proactively provide material grades and indicate whether surface treatment is required when requesting quotes, enabling the factory to give an accurate delivery date rather than estimating based solely on the word "prototype."

Estimating delivery times for production parts must be broken down into three stages: machining scheduling, inspection sampling, and shipping packaging. For CNC turning production, for example, if the batch size is 500 pieces or fewer with a single process, continuous production using TAKISAWA or BROTHER equipment takes about 5–10 working days for machining itself. For batches exceeding 1,000 pieces or involving multiple processes (such as turning followed by milling), 15–25 working days are required. The inspection process depends on buyer specifications, which may require full inspection or CMM measurement, adding 1–3 days. Buyers should avoid requesting quotes with only a "the shorter the delivery time, the better" mindset. Instead, they should provide estimated batch sizes, annual demand, and delivery fluctuation ranges so the factory can plan capacity and provide a committed delivery date.

Material preparation is the most underestimated part of lead time. Among the aluminum alloy, stainless steel, carbon steel, brass, and copper that Yuan Shun Li Machining processes, common specifications such as aluminum alloy 6061 and 304 stainless steel are usually available from stock or with short procurement lead times. However, if a buyer specifies special grades—such as 7075 aerospace-grade aluminum, 316L medical-grade stainless steel, or stainless steel with specific hardness—material procurement may take 7–14 days. For small-diameter bar stock used in Swiss-type lathe machining (e.g., 2mm–10mm), procurement takes even longer if the specifications are unusual. Buyers should proactively state any material sourcing constraints when requesting a quote, such as "must use European materials" or "Asian substitutes are acceptable," as this directly affects whether the factory can meet the delivery date.

To obtain an accurate delivery estimate, buyers must provide the following information in their RFQ: 2D/3D drawings or samples of the part, material grade and specification, batch size and estimated annual demand, surface treatment requirements, packaging method (bulk, individual packaging, rust-proof packaging), shipping terms (FOB, CIF, DDP), destination country, and expected delivery date. The more complete the information, the better the factory can assess the feasibility of material preparation, machining scheduling, and logistics time. As an OEM parts supplier and Tier-1 partner, Yuan Shun Li is accustomed to providing delivery times based on complete RFQs. If a buyer provides only drawings without specifying batch size and delivery requirements, the factory can usually only provide a range, which is of limited help for subsequent scheduling.

Taichung is located in the middle of Taiwan's western corridor, about a 30-minute drive from Taichung Port and a 1.5-hour drive from Taoyuan International Airport. This location allows Yuan Shun Li to support both sea and air freight shipments. For buyers, this means the factory can flexibly switch between transport modes based on delivery urgency, and imported materials (such as special steel from Japan and Germany) can be delivered directly to the factory after arriving at Taichung Port, reducing transit time. In addition, the Tanzi District of Taichung is adjacent to the precision machinery industry cluster and science parks, meaning a high density of subcontractors (such as surface treatment and heat treatment). Outsourced processing pickup and delivery can typically be completed within half a day, a supply chain density advantage that is difficult to replicate in other regions.