Sinobakr Precision Hardware Parts Cleaning Solutions

Ⅰ. Scope of Applicable Workpieces

Precision‑stamped components, CNC‑machined small‑size parts, micro‑shafts, gaskets, bushings, springs, circlips, screws & nuts, connector terminals, fine‑pitch gears, bearings, small‑sized parts made of stainless steel, copper, aluminum and zinc alloy, powder‑metallurgy parts, etc.

Common Contaminants: Cutting oil, drawing oil, anti‑rust oil, iron filings, aluminum swarf, polishing wax, micron‑sized dust, residues in blind holes and threads.

Cleaning Difficulties: Dead‑end zones such as blind holes, micro‑holes and gaps; high risk of scratch and oxidation/rust; zero‑water‑spot requirement, high cleanliness standard, compliance with specifications including VDA19, ISO16232.

Ⅱ. Three Main Process Solutions by Sinobakr (Select as Required)

Solution A: Vacuum Hydrocarbon Ultrasonic Cleaning (Top Choice for High‑end Precision Parts)

Recommended for parts with strict cleanliness requirements, components with deep‑cavity blind holes, new‑energy hardware, connectors, micro‑gears and bearings for direct assembly after cleaning.

Process Flow: Loading → Vacuum Spray Pre‑washing → High‑frequency Ultrasonic Fine‑cleaning → Spray Rinsing → Vapor Degreasing → Vacuum Drying → Unloading

Sinobakr Models: Single‑station Vacuum Hydrocarbon Cleaning Machine / Multi‑station Continuous Hydrocarbon Cleaning Line

✅ Advantages

1. Vacuum environment eliminates air‑lock in blind holes for penetration into narrow gaps and dead corners;

2. Vacuum drying delivers fully water‑spot‑free, oxidation‑free & rust‑free parts;

3. Solvent distillation recovery, recovery rate ≥95%, low consumable cost, eco‑friendly closed‑type design with zero volatile emission;

4. Non‑corrosive to steel, stainless steel, copper and aluminum, provides short‑term rust‑proof performance.

Solution B: Modified‑alcohol‑based Solvent Vacuum Cleaning (Ultra‑high‑precision & Post‑heat‑treatment Parts)

Suitable for quenched parts, heat‑treated hardware and heavy‑duty precision components to remove quenching oil and oxidation residues.

Process: Closed vacuum treatment + ultrasonics + spraying + vacuum drying Advantages: High flash point for improved safety, superior cleaning cleanliness compared with hydrocarbon solvents.

Solution C: Fully‑aqueous Cleaning Solution (Cost‑effective for Mass Production)

Two types of Sinobakr equipment are available:

① Fully‑automatic Multi‑tank Aqueous Ultrasonic Cleaning Line

Process: Ultrasonic Degreasing → Spray Rinsing → Pure‑water Fine‑rinsing → Air Knife Blow‑off → Hot‑air Drying Ideal for mass‑produced standard hardware and stainless‑steel small‑size parts with moderate‑budget projects; pure‑water supply and wastewater treatment are required as auxiliary facilities.

② BK‑series Single‑station Drum‑type Aqueous Cleaning Machine (Mass‑processing Solution for Tiny Parts)

Soft tumbling inside drum combined with ultrasonic & spray cleaning; prevents scratches caused by mutual collision of springs, gaskets and washers; PLC‑controlled fully‑automatic closed chamber; built‑in oil‑water separator & filtration circulation system; small footprint, well‑suited for screws, springs and micro‑components.