OpeningYour drawing defines the part. We define the process. Every bushing and sleeve is machined to your exact print, then verified with a full inspection report before shipment. No guesswork. No dev
Your drawing defines the part. We define the process. Every bushing and sleeve is machined to your exact print, then verified with a full inspection report before shipment. No guesswork. No deviations.
We are a precision manufacturing factory in Dongguan, China, with 20 years of CNC machining experience. Send us your drawing. We will quote it in 12 hours.
| Parameter | Value |
|---|---|
| Materials | 1214L, 12L14, 4140, 4340, 1018, 1045, 303, 304, 316, 17-4PH, 6061-T6, 7075-T6, C36000, C17200, POM, PTFE, PEEK |
| Machining process | CNC Swiss turning, CNC lathe turning, multi-axis milling, drilling, tapping, grooving, knurling |
| Diameter range | 1.0 mm – 150.0 mm |
| Length range | 1.0 mm – 600.0 mm |
| Tolerance | ±0.005 mm (standard), ±0.002 mm (precision) |
| Surface finish | Ra 0.4 µm – Ra 3.2 µm as specified |
| Threads | Internal and external, metric and imperial, class 2A/3A, 2B/3B |
| Heat treatment | Carburizing, induction hardening, through hardening, tempering |
| Secondary operations | Deburring, anodizing, black oxide, zinc plating, nickel plating, passivation, Teflon coating |
| Batch size | 1 piece (prototype) to 100,000+ pieces (production) |
| Inspection equipment | CMM, optical comparators, micrometers, bore gauges, surface roughness testers |
| Quality documents | Material certificates, dimensional inspection report, heat treatment report, RoHS/REACH compliance |
1. Batch-traceable quality Every batch gets a unique job number. Material heat numbers, machine parameters, and operator records are linked to that number. If a problem appears in your assembly line, we trace it to the exact batch and correct it. No mystery. No rework loops.
2. Inspection report per batch You do not have to trust us. You get a dimensional inspection report with every shipment. Critical dimensions are measured and recorded. We use CMM and calibrated gauges. Reports are sent before the parts leave the factory. You can release the parts straight to your line.
3. One factory for CNC + stamping + springs + heat sinks Most buyers juggle three or four suppliers for a single assembly. We run CNC machining, metal stamping, spring manufacturing, and heat sink fabrication under one roof. That means fewer purchase orders, tighter tolerances between mating parts, and one accountable partner. If your bushing sits in a stamped bracket with a spring and a heat sink, we make all of them. You get one shipping address, one invoice, one quality system.
Lathe turned bushings and sleeves are not exotic. They are everywhere. We machine them for:
If it rotates, slides, or presses, a bushing or sleeve is likely involved. We make them to survive your operating conditions.
Looking for a different part? We also machine Precision CNC Machined Brass Valve Bodies | Custom Tolerances, No MOQ in the same Dongguan factory.
Q: What is your MOQ? A: No MOQ. We machine one prototype for your validation, then scale to production. Many factories refuse small orders. We accept them because we know the first article leads to the repeat order.
Q: How do you guarantee tolerance and quality? A: We machine to your drawing, not to our interpretation. First article inspection is done before production. In-process checks are done every hour. Final inspection uses CMM and calibrated gauges. You receive the inspection report with the shipment. If a part is out of spec, we replace it at our cost.
Q: What is your standard lead time? A: Prototypes: 5–7 days. Production batches: 7–12 days, depending on quantity and material. For urgent orders, we can expedite to 3 days for simple geometries. We quote the lead time with your price, and we meet it.
Q: Do you provide material certificates and compliance documents? A: Yes. We provide mill certificates for raw material, heat treatment reports, and RoHS/REACH declarations. For aerospace or medical applications, we provide full traceability from melt to finished part. Just specify the requirement on your drawing or PO.
We are a precision manufacturing supplier of custom CNC machining, made in China, with no MOQ and a 12-hour quote. Send us your 2D drawing or 3D model. We will review the geometry, suggest improvements if needed, and return a firm price and lead time.
Email: sc@bquq.com WhatsApp: +86 13713157787
We reply within 12 hours, Monday to Saturday. Your drawing is confidential. Your parts are machined to print. Your shipment includes the inspection report. That is how we have kept buyers for over 20 years.
| Parameter | Capability |
|---|---|
| Materials | AL6061/7075, SUS303/304/316, 45# steel, T2 copper, H59 brass, POM, PEEK, nylon |
| Tolerance | ±0.005mm standard, ±0.003mm on request |
| Machines | 3/4/5-axis CNC, turn-mill, Swiss lathe |
| Surface | Anodizing, nickel, zinc, passivation, sandblast, polish |
| Size Range | Max 400 x 300 x 200 mm |
| Prototype | 72 hours, no MOQ on samples |
| Inspection | Full report per batch, CMM data on request |
