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About Zenix
Shanghai Zenix Vacuum Coating Technology Co., Ltd.
Shanghai Zenix Vacuum Coating Technology Co., Ltd.
Zenix Vacuum Coating Technology was established in 1985 and is a high-tech enterprise specializing in the R&D, manufacturing, and process solutions of vacuum coating equipment.

Originally founded as the Shanghai Branch of PLA Factory 9570, the company has evolved over decades into a professional vacuum coating equipment manufacturer and solution provider serving the global market.

As China Vacuum Pumps Factory and Custom China Vacuum Pumps Manufacturer, We provide complete vacuum coating solutions for customers worldwide, covering hard coatings, decorative coatings, and functional coating systems, including advanced technologies such as DLC and Ta-C. In addition, we offer related spare parts, targets, and comprehensive technical support services.
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  • Sep.01.2026
    How a PVD Hard Coating Machine Extends the Service Li...
    An uncoated carbide end mill cutting 42CrMo4 die steel typically reaches its wear limit after 20 to 30 minutes. Run the same tool through a TiAlN cycle in a PVD hard coating machine and flank wear usually arrives 3 to 5 times later. Injec...
  • Sep.01.2026
    PVD vs CVD: How to Choose the Right Vacuum Coating Te...
    Vacuum Coating Technology Guide - PVD vs CVD Choosing between PVD and CVD usually comes down to one number before any coating datasheet is opened: process temperature. A PVD line deposits TiAlN at 200-450 degrees C, while a thermal CVD fu...
  • Sep.01.2026
    Hard Coating vs Decorative Coating: Key Differences i...
    A plant that coats 30,000 carbide inserts a month cannot reach that volume on an evaporation line, and an optics workshop that needs 200 nm of aluminum on 1,000 lenses per batch should not be buying sputtering targets. The difference betw...
  • Sep.01.2026
    How to Choose a Vacuum Pump for a PVD Coating System:...
    Two quotations for the same mid-size magnetron sputtering tool used in physical vapor deposition (PVD) coating can differ by more than $20,000, and the gap usually sits in the pump package. One supplier proposes a two-stage oil-sealed rot...
Vacuum Pumps Industry knowledge

Vacuum Pumps for PVD Coating Systems

Shanghai Zenix Vacuum Coating Technology Co., Ltd. is a China-based Vacuum Pumps manufacturer with nearly 40 years of experience in vacuum coating equipment. Our vacuum pump range is engineered to support the demanding evacuation and process requirements of PVD hard coating, decorative coating, and functional coating systems. We supply pumps that form the critical foreline stage, ensuring rapid pump-down, stable base pressure, and reliable operation across continuous production cycles.

As a dedicated Vacuum Pumps supplier, we focus on mechanical pump / foreline pump solutions that integrate directly with our coating machines and can also be specified for existing vacuum systems. Our engineering team selects and configures each pump based on chamber volume, target gas load, required ultimate pressure, and process duty cycle.

Our Vacuum Pump Range

We currently offer one core product family within this category, with configuration options to match different PVD system sizes and process requirements.

Mechanical Pump / Foreline Pump

This pump serves as the primary roughing and backing stage for high-vacuum pumps such as diffusion, turbomolecular, or roots pumps. It rapidly reduces chamber pressure from atmosphere to the 0.1–0.01 Pa range, creating a stable foreline environment for the entire pumping stack.

  • High pumping speed for fast cycle times
  • Robust construction for continuous industrial duty
  • Oil-sealed rotary vane or similar proven technology
  • Customizable for high pumping speed, low noise, or anti-corrosion

Application Fit Across Coating Processes

Our vacuum pumps are selected to match the specific demands of different PVD coating applications. The table below summarizes typical process requirements and how our pump configurations address them.

Coating Type Typical Base Pressure Pump Role Zenix Configuration Focus
Hard coatings (TiN, TiAlN, CrN, DLC) 10⁻³ – 10⁻⁴ Pa Foreline for turbomolecular/diffusion pump High throughput, low backstreaming
Decorative coatings (ZrN, TiCN, Cr) 10⁻² – 10⁻³ Pa Roughing and backing Fast cycle time, oil mist control
Functional coatings (EMI, optical) 10⁻³ – 10⁻⁵ Pa Foreline for high-vacuum pump Low vibration, clean operation

Engineering and Quality Assurance

Our vacuum pumps are built with high-strength alloys and advanced heat treatment for core components, achieving an average service life exceeding 20,000 hours under normal industrial conditions. We optimize the oil circuit and sealing design to reduce energy consumption and emissions, lowering long-term operating costs.

Each pump undergoes factory testing before shipment. We verify ultimate pressure, pumping speed, noise level, and leak tightness. Our quality control includes helium leak detection and performance benchmarking against reference standards. Pumps are packaged with protective covers and desiccant to prevent contamination during transit.

Integration with Coating Machines

Our vacuum pumps are designed for seamless integration with PVD Hard Coating Machine, Decorative PVD Coating Machine, and Functional Coating Machine systems. We provide the necessary inlet/outlet flanges, oil mist filters, and vibration isolation mounts. For existing installations, we can supply replacement pumps with matching interfaces and performance specifications.

We also offer commissioning support, including pump-down curve verification, leak checking, and operator training on maintenance procedures.

Information We Use to Configure Your Solution

To prepare an accurate proposal, we typically require the following project details:

  • Chamber volume and required evacuation time
  • Target ultimate pressure and process gas load
  • Coating type (hard, decorative, functional) and substrate materials
  • Existing high-vacuum pump model and backing requirements
  • Available utilities: power supply, cooling water, compressed air
  • Installation environment: cleanroom class, ambient temperature, noise limits
  • Required documentation and acceptance criteria

Maintenance and Spare Parts

We supply genuine spare parts including oil, filters, seals, and vanes. Our service team can provide preventive maintenance schedules and remote troubleshooting. For global customers, we coordinate with local service partners to ensure timely support.

Frequently Asked Questions

What types of vacuum pumps does Zenix supply?

We currently supply mechanical pump / foreline pump solutions optimized for PVD coating systems. These pumps serve as roughing and backing stages for high-vacuum pumps.

Can your pumps be used with existing coating machines from other brands?

Yes, our pumps can be configured with standard flange interfaces and performance characteristics to replace or supplement pumps in existing vacuum systems. We will need the current pump model and system specifications to confirm compatibility.

What is the typical service life of your mechanical pumps?

Under normal operating conditions with proper maintenance, our pumps have an average service life exceeding 20,000 hours. Actual life depends on process gases, duty cycle, and oil change intervals.

Do you provide installation and commissioning support?

Yes, we offer commissioning support including pump-down curve verification, leak testing, and operator training. Remote assistance is also available.

What documentation is provided with the pump?

Each pump ships with an operation manual, maintenance guide, and test report. We can also provide material certificates and compliance documentation upon request.