Product Specification

250-300m³/h Oil-Free Dry Claw Vacuum Pump ZSV250 Drop-in Replacement for Busch MINK MM 1252 AV

Overview

The Wordfik ZSV250 is a versatile medium-to-large capacity dry claw vacuum pump engineered for applications requiring oil-free, contamination-free vacuum performance with flexible cooling options. As a key model in Wordfik's ZSV series, this rotary volumetric vacuum pump features two conjugate meshing claw-shaped rotors driven by synchronous high-precision gears. The rotors operate without contact between each other or the pump housing, leaving only a small gap — a design that ensures reliable operation, minimal wear, low vibration, and low noise.

The ZSV250 delivers a pumping speed of 252 m³/h at 50Hz and 300 m³/h at 60Hz. What sets the ZSV250 apart is its dual cooling capability — available in both air-cooled (achieving 200 mbar ultimate pressure) and water-cooled (achieving 80 mbar ultimate pressure) configurations. Powered by a 5.5 kW (50Hz) or 6.6 kW (60Hz) motor, the ZSV250 is suitable for low and medium vacuum fields, primarily extracting air and other dry gases. It can be used independently, in series or parallel configurations, or as a fore pump for other vacuum systems.

Key Features

• 100% Oil-Free Operation – Delivers completely dry, contaminant-free vacuum without oil or any other media in the pump chamber, protecting both the process and the environment.

• Dual Cooling Flexibility – Available in air-cooled (200 mbar ultimate pressure) and water-cooled (80 mbar ultimate pressure) configurations, allowing users to select the optimal cooling method based on application requirements and facility infrastructure.

• Non-Contact Rotor Design – Two claw-shaped rotors rotate in opposite directions without touching each other or the housing. This eliminates mechanical friction, reduces wear, and ensures long service life.

• Low Noise and Vibration – Engineered for smooth, quiet operation with low vibration levels, creating a safer and more comfortable working environment.

• Virtually Maintenance-Free – No regular maintenance required, significantly reducing operating costs and downtime.

• Corrosive Gas Capability – Can absorb corrosive, toxic, radioactive, and dusty gases, making it suitable for challenging industrial environments.

• Low Operating Temperature – No metal friction within the pump chamber ensures low operating temperatures, extending component life.

• Versatile Configuration – Can be used alone, in series (to increase vacuum level), or in parallel (to increase pumping speed), and also serves as a fore pump for other vacuum systems.

• Large Industrial Connections – Features 2 inch inlet and 1½ inch outlet connections, minimizing flow restriction for maximum throughput.

Applications

The ZSV250's oil-free operation, dual cooling flexibility, and ability to handle challenging gases make it a versatile solution for a wide range of industrial applications.

• Vacuum Coating – Provides clean, oil-free vacuum for optical coatings, decorative coatings, and functional thin-film deposition processes.

• Semiconductor Industry – Delivers contaminant-free vacuum for wafer handling, thin-film deposition, etching, and other semiconductor fabrication processes.

• Pharmaceutical Industry – Supports pharmaceutical production, freeze drying, sterilization, and processing applications requiring clean, reliable vacuum.

• Automotive Industry – Powers vacuum systems for composite material processing, component testing, and manufacturing operations.

• Industrial Waste Gas Treatment – Handles corrosive, toxic, and radioactive gases in environmental protection and waste gas treatment systems.

• Vacuum Degassing – Removes entrapped gases from materials such as plastics, metals, and liquids to improve product quality.

• CNC Woodworking – Provides oil-free, non-contaminating vacuum hold-down for workpieces on CNC routers and woodworking machinery.

• Vacuum Packaging – Powers high-capacity vacuum packaging systems for food and industrial products.

• Plastics and Rubber Industry – Supports plastic extrusion, thermoforming, and degassing processes.

• Hospital Negative Pressure Systems – Serves hospitals and medical facilities for central vacuum supply and sterilization equipment.

• Medical Systems – Provides clean vacuum for various medical instruments and automatic machine assembly.

• Laboratory and Research – Ideal for vacuum distillation, filtration, drying, and other laboratory applications.

• Printing and Paper Converting – Provides vacuum for paper handling, sheet feeding, and converting operations.

• Environmental Protection Engineering – Supports waste gas treatment and environmental protection systems.

*1) Contact us for other voltage options. *2) Instruction manual. *3) Performance curves. *4) 3D model diagram.