What This Collection Is and Why It Cuts Your Rework Rate This is a line of stamped crimp terminals—brass, phosphor bronze, and beryllium copper—produced on 25-ton high-speed presses with progressive
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What This Collection Is and Why It Cuts Your Rework Rate This is a line of stamped crimp terminals—brass, phosphor bronze, and beryllium copper—produced on 25-ton high-speed presses with progressive
This is a line of stamped crimp terminals—brass, phosphor bronze, and beryllium copper—produced on 25-ton high-speed presses with progressive dies. The concrete benefit: you get terminal-to-terminal dimensional repeatability of ±0.01 mm on critical contact geometry, burr height held under 0.03 mm, and a surface finish of Ra 0.8 µm on the crimp barrel. That translates to a measurable drop in crimp pull-out failures—typically from 3% down to below 0.5% in high-vibration assemblies. Every batch is heat-treated to 40 HRC where specified, and standard lead time is 15 days from drawing approval to shipment. If you are chasing tighter electrical contact resistance or mechanical lock, this is the precision manufacturing baseline you build on.
We do not run simple blank-and-form dies. Each terminal runs through a 12- to 18-station progressive die. The pilot holes are pierced in station one, then the strip is indexed by a cam-driven feeder with a repeat accuracy of ±0.005 mm. Forming stations are split: first a 90° bend, then a coin, then a final 15° over-bend to compensate for springback. This is why our crimp barrel inner width stays within ±0.01 mm even after 100,000 continuous shots. The die steel is D2 hardened to 58-60 HRC, and we re-sharpen every 300,000 hits to keep edge quality stable. For engineers who have seen stamped terminals warp at the weld tab—we control that by adding a coining station that flattens the base material to a thickness variance of ±0.008 mm.
We stock three base alloys: C26000 brass (half-hard) for general-purpose power terminals, C52100 phosphor bronze for spring-loaded contacts, and C17200 beryllium copper for high-cycle flex applications. Brass comes at 80-90 HRB, phosphor bronze at 90-100 HRB, and beryllium copper is age-hardened to 36-40 HRC after forming. For terminals that must survive 500+ insertion cycles, we specify a selective hardening process only on the contact beam, leaving the crimp barrel soft (70 HRB) for easy wire deformation. Do not accept a one-hardness-fits-all part. We also offer tin plating (2-5 µm) or selective gold plating (0.76 µm) on the contact area only—this keeps your per-unit cost down by 18-22% compared to full-plating.
Before any die is approved, we run a full CMM (coordinate measuring machine) layout on 5 parts from a 300-piece trial batch. The key dimensions we lock: crimp barrel inner width (tolerance ±0.01 mm), insulation grip inner diameter (±0.02 mm), overall length (±0.05 mm), and contact beam height (±0.015 mm). We also measure burr height with a laser profilometer—target is under 0.03 mm on the cut edges, because burrs nick wire strands and cause intermittent electrical shorts. Surface finish on the crimp area is Ra 0.8 µm max, verified with a stylus profilometer. Every dimension is recorded in a PPAP (Production Part Approval Process) report, which you receive with the first article inspection.
| Specification | Value / Range |
|---|---|
| Base materials | C26000 brass, C52100 phosphor bronze, C17200 beryllium copper |
| Terminal thickness | 0.15 mm – 2.0 mm (standard), up to 3.0 mm for power lugs |
| Terminal width (max) | 25 mm |
| Hardness (as supplied) | Brass 80-90 HRB, Phosphor Bronze 90-100 HRB, BeCu 36-40 HRC |
| Critical dimension tolerance | ±0.01 mm on crimp barrel, ±0.02 mm on insulation grip |
| Burr height (max) | 0.03 mm |
| Surface finish (crimp area) | Ra 0.8 µm |
| Runout (terminal-to-strip alignment) | ±0.02 mm over a 50 mm strip length |
| Standard lead time | 15 days from drawing approval to first shipment |
| MOQ | No MOQ for standard collection; custom dies start at 5,000 pcs |
We do not ship a reel without a final audit. For every production lot, we pull 32 pieces from the start, middle, and end of the run. Each piece is checked for crimp height (using a go/no-go pin gauge), terminal width (micrometer), and surface defects (20x magnification). Then we do a destructive pull-test on 5 crimped samples—wire size 22 AWG to 10 AWG—and require a pull-out force of at least 1.5 times the wire's rated tensile strength. If any sample fails, the entire lot is quarantined and the die is re-set. We also include a material certificate (MTR) with every shipment, traceable to the coil lot number. This is standard precision manufacturing protocol, not an add-on service.
Our terminals are packaged on plastic reels (standard 330 mm diameter) with a carrier tape that matches your existing crimping machine. We offer pitch options of 2.0 mm, 2.5 mm, 3.0 mm, and 4.0 mm. The carrier tape tensile strength is 150 N, so it does not stretch during high-speed feeding. Each reel is labeled with part number, lot date, and quantity—we count by a photo-eye sensor, not by weight, so your inventory count is exact. We also offer chain-staking for loose-piece terminals if your tooling uses bowl feeders. No MOQ applies to standard reel sizes, so you can order 500 pieces for a pilot run.
No MOQ for any standard terminal in this collection—you can order a single reel of 500 pieces for prototyping, and custom die work starts at 5,000 pieces to amortize tooling cost.
Yes, we modify die inserts for your specific housing dimensions—typically adding or relocating retention barbs or changing the crimp barrel length—with a tooling modification cost starting at $800 and a 10-day die revision lead time.
Every shipment includes a material test report (MTR), a dimensional inspection report (with CMM data), and a certificate of conformance (CoC) for our precision manufacturing process.
For a custom terminal with a new progressive die, lead time is 25 days from drawing approval to first article; for a modification of an existing die, it is 12 days.
Send your 2D drawing (PDF or DXF) or 3D model (STEP) to sc@bquq.com, and our engineers will reply within 12 hours with a firm per-piece price, tooling cost (if any), and a delivery schedule. For urgent questions, reach us on WhatsApp at +86 13713157787. We are a 20-year-old factory in Dongguan, made in China, and we ship globally via DHL or FedEx. If you are also sourcing cutting tools for your own production, check out our CNC cutting tool selection guide. And to understand how tolerances affect your terminal fit, read our CNC machining tolerances guide. No MOQ, no run-around—just a precise quote.
| Parameter | Capability |
|---|---|
| Materials | SPCC, SGCC, SUS301/304/316, brass, copper, beryllium copper, phosphor bronze |
| Process | Progressive die stamping, fine blanking, deep drawing, bending, tapping |
| Tolerance | ±0.01mm standard, ±0.005mm on request |
| Surface | Zinc plating, nickel, tin, gold, powder coating, passivation, anodizing |
| Die Size | Up to 1200 x 800 mm, 16-250 ton presses |
| Thickness | 0.05 - 6.0 mm sheet metal, wire 0.1 - 8.0 mm |
| Prototype | 7-15 days tooling, no MOQ on samples |
| Inspection | Full report per batch, CMM and optical measurement |
