BOS,establishedin1999, We have been providing customized precision parts processing services for various industries, such as Precision Measurement Parts, precision parts, FA Automation Parts, Medical Parts, Mold Parts, OEM Parts and Precision Fasteners.

We can complete high precision product processing with a diameter tolerance up to 0.5μm, the coaxial precision up to 0.2μm, and the range of lengths available are from 0.5mm ~2000mm. All at reasonable prices, with good quality and expedient delivery.

At BOS we specialize in the processing and production of precision parts. We are well equipped with high precision CNC machines and grinding machines, and our processing standards are in compliance with JIS standards (Japanese), DIN standards (German), AISI standards (American).

BOS — Precision CNC Machining and Mold Manufacturing Experts

BOS is a comprehensive manufacturing service provider specializing in CNC precision machining, mold manufacturing, and precision component production. Located in Changzhou, Jiangsu Province, we focus on micron-level machining accuracy as our core competitiveness, committed to providing customers in the automotive, medical, aerospace, 3C electronics, industrial automation, and new energy industries with one-stop manufacturing solutions from product design, mold development, precision machining to mass production.

We deeply understand the importance of precision component quality, therefore we place great emphasis on product quality control. We have introduced a variety of high-precision testing equipment to comprehensively inspect machined parts, ensuring they meet our customers' high-precision requirements. In addition, we have established a product laboratory to verify the performance of components in practical applications, thereby identifying problems and improving processes.

Precision Machining Capabilities

The company is equipped with a full set of precision machining equipment, including three-axis, four-axis, and five-axis CNC machining centers, high-precision internal and external cylindrical grinding machines, slow wire EDM, and mirror EDM. We undertake the machining of parts from various materials including aluminum alloy, stainless steel, copper, titanium alloy, and engineering plastics, covering a one-stop surface treatment and post-processing service encompassing turning, milling, grinding, drilling, anodizing, sandblasting, and heat treatment.

Diameter tolerance is 0.5μm, coaxiality accuracy is 0.2μm, roundness accuracy is 0.3μm, and surface roughness is Ra0.04. Outer diameter machining range is 0.06mm to 300mm, and length machining range is 0.5mm to 2000mm. We meet stringent precision standards for military, medical, and automotive applications. Whether it's single-piece prototyping, small-batch trial production, or large-scale mass production, we can guarantee product consistency and reliability with our stable process capabilities.

Mold Manufacturing Capabilities

In the mold field, we possess complete mold design and manufacturing capabilities, covering categories such as plastic molds, stamping dies, die-casting molds, and semiconductor molds. From mold structure design, mold flow analysis, machining programming to trial molding and verification, we maintain full-process independent control to ensure optimal mold life and molding accuracy.

Processing Standards

Our products can meet JIS, DIN, or AISI standards, etc., and you can choose according to your needs.

Processing Equipment

We have 70 processing machines, including 8 CNC machine tools, 6 CNC lathes, 20 lathes, and 16 grinding machines.

Quality Control System

The company strictly follows the ISO9001:2015 quality management system standard, implementing incoming material inspection, process monitoring, and full inspection of finished products throughout the entire process. Equipped with high-precision testing equipment such as coordinate measuring machines (CMM), 2D image measuring instruments, optical inspection equipment, and surface roughness testers, all precision workpieces undergo six processes: roughing, finishing, deburring, full dimensional inspection, surface treatment, and secondary re-inspection. We implement a "piece-by-piece full inspection" standard to ensure that every delivered product meets the drawing requirements.

Service Model

We provide agile and efficient manufacturing services: from drawing review and process optimization to finished product delivery, a professional engineering team follows up throughout the entire process. We support various cooperation models such as custom-made based on drawings, processing based on samples, and custom-made non-standard parts. Our core team has many years of experience in the precision manufacturing industry, possessing rich process experience and rapid response capabilities, which can significantly shorten product development and delivery cycles.

Why Choose BOS

Precision Guarantee — Micron-level processing capabilities meet the stringent standards of high-precision fields

Full-Process Independence — From molds to parts, from prototyping to mass production, no outsourcing is required, and quality is fully controllable.

One-Stop Service — Covering the entire chain from design, processing, surface treatment, to inspection, reducing customers' supply chain management costs.

Rapid Response — Efficient coordination with a professional team shortens the delivery cycle from drawings to finished products.

BOS is rooted in precision manufacturing and customer-oriented, committed to becoming your trusted long-term manufacturing partner. Welcome to contact us to discuss cooperation; we will provide you with professional technical evaluation and quotation services.