OpeningSend us your drawing. We make battery holder contact springs exactly to your print.Every spring is verified before shipment. We check wire diameter, coil count, free length, and load at working
Send us your drawing. We make battery holder contact springs exactly to your print.
Every spring is verified before shipment. We check wire diameter, coil count, free length, and load at working height. You get parts that fit and function on the first try.
We are a precision manufacturing factory in Dongguan, China, with 20 years of spring-making experience.
| Parameter | Value |
|---|---|
| Wire diameter | 0.08 mm – 8.0 mm |
| Free length tolerance | ±0.10 mm (standard), ±0.05 mm (precision) |
| Outer diameter tolerance | ±0.10 mm (standard), ±0.05 mm (precision) |
| Load tolerance | ±10% at specified working height |
| Surface finish | Zinc plating, nickel plating, passivation, or as specified |
| Material options | SWP-A, SUS302, SUS304, SUS316, C17200, C5210 |
| Machines | CNC coiling machines (0.08–3.0 mm), cam coiling machines (3.0–8.0 mm) |
| Process | Coiling, stress relief, grinding (if required), plating, 100% dimension check |
| Batch size | 10 to 1,000,000 pieces |
| Inspection report | Included with every batch, dimensional and load data |
All springs are made in China at our own factory. No outsourcing. No middlemen.
1. Batch-traceable quality Every batch gets a unique lot number. We record material heat number, machine settings, and operator ID. If a problem shows up in your assembly line, we trace it back to the exact coil and hour of production.
No surprises. No hidden deviations.
3. One factory for CNC + stamping + springs + heat sinks Your battery holder often needs more than just a spring. We also run CNC machining, metal stamping, and heat sink lines. Send us the whole assembly drawing. We quote the complete part set, coordinate tolerances between components, and ship one combined order. Fewer suppliers, fewer delays, fewer mismatches.
Battery holder contact springs are small but critical. They carry current and maintain pressure. Typical applications include:
In each case, the spring must hold the battery firmly against the contact pad. Vibration, temperature swings, and repeated insertion cycles all affect performance. Our springs are designed and built to handle those conditions.
Looking for a different part? We also machine Custom Mixed Type Industrial Springs | Precision Manufacturing No MOQ in the same Dongguan factory.
Q: Do you really have no MOQ? A: Yes. We accept orders from 10 pieces. Prototype orders are common. Production pricing starts at 1,000 pieces, but we never turn away a small order.
Q: What tolerance can you hold on custom springs? A: Standard tolerance is ±0.10 mm on free length and outer diameter. For precision applications, we hold ±0.05 mm. Load tolerance is ±10% at working height. If you need tighter, tell us—we will evaluate your drawing and material.
Q: What is your lead time for custom springs? A: Prototypes ship in 7–12 days after drawing approval. Production runs take 15–20 days. For urgent orders, we can rush prototypes in 3–5 days at a small surcharge.
Q: Can you provide material certificates? A: Yes. We provide mill certificates for the raw wire material with every production batch. Inspection reports include hardness and surface data. All certificates are in English.
Get a firm quote in 12 hours.
Email your drawing (PDF, STEP, or IGES) to sc@bquq.com. Or send it on WhatsApp: +86 13713157787.
No MOQ. No obligation. Just a clear, engineer-to-engineer quote.
Your battery holder needs a spring that works. Send us the drawing and we will prove it.
| Parameter | Capability |
|---|---|
| Materials | SUS302/304/316, SWC piano wire, SWP music wire, 65Mn, phosphor bronze, beryllium copper |
| Types | Compression, extension, torsion, wire forms, battery springs, touch springs |
| Wire Diameter | 0.05 - 12.0 mm |
| Tolerance | ±0.02mm standard, ±0.01mm on request |
| Surface | Zinc plating, nickel, black oxide, passivation, shot peening |
| Machines | CNC spring coiling machines, torsion machines, wire forming machines |
| Prototype | 72 hours, no MOQ on samples |
| Inspection | Load test per batch, fatigue test data on request |
