Your Reliable Specialists in Vacuum Components Manufacturing

XWJS specializes in custom vacuum flanges (KF, ISO, CF, ASA, JIS) and UHV chambers with tight tolerances, leak-tight sealing, and stable and reliable quality.

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About XWJS – Specialists in Custom Vacuum Components

XWJS was founded in 1991 and started as a machining factory. The company began to develop the vacuum components market in 2010. Over 15 years of experience supplying precision vacuum flanges to the Japanese market.

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High-Precision Vacuum Components Manufacturer

We specialize in manufacturing high-quality vacuum components, including custom flanges, bellows, vacuum chambers, and CNC-machined metal parts. With tight tolerances, leak-tight performance, and consistent global delivery, XWJS supports demanding applications in semiconductor, research, and industrial vacuum systems.

Flange

Precision-machined vacuum flanges designed for ultra-high vacuum (UHV) sealing and repeatable assembly.

Bellows

Flexible stainless steel bellows engineered for motion compensation in dynamic vacuum systems.

Vacuum Chamber

Custom-built vacuum chambers with tight dimensional control and leak-free performance for UHV environments.

Shadow Mask

High-precision shadow masks for clean, repeatable material deposition in vacuum coating systems.

Robust Machining Capabilities for High-Performance Vacuum Components

At SZXWJS, we deliver precision vacuum components backed by advanced machining capabilities and strict quality control. Our in-house equipment includes:

High-Precision 4-Axis Machining

advanced 4-axis machining centers with ±0.001mm precision for complex, multi-surface vacuum components.

CNC Lathes for UHV Sealing

CNC precision lathes (±0.005mm) are designed for critical sealing surfaces in ultra-high vacuum applications.

Ultra-Fine Surface Grinding

Flat grinding machines with ±0.001mm tolerance ensure flawless finishes and consistent dimensional accuracy.

Process Control & Repeatability

Strict tolerance control, high repeatability, and ISO-level manufacturing standards ensure quality at scale.

Custom Vacuum Component Solutions

From flanges to chambers, we deliver custom vacuum components with high precision, stable quality, and fast turnaround, trusted by customers worldwide.