Company Overview

Shandong Zhangqiu Blower Co., Ltd is a leading Chinese manufacturer specializing in Roots type blowers with over 40 years of experience. It is the largest domestic producer and seller of Roots blowers, with international collaborations including Sino-Japanese joint ventures and a U.S. subsidiary. The company integrates R&D, design, production, and manufacturing of various blower types and related equipment. It employs top experts and maintains partnerships with prestigious universities, holding multiple industry awards.

Corporate Culture and Strategy

Working Principle: "Just Do Your Best!"
Development Strategy: Focus on expanding core business, strengthening innovation, and fostering cooperation to become an excellent enterprise.

Product Introduction: ZG Series Roots Type Blower

The ZG series is a tri-lobe Roots blower developed based on American MB series technology, designed to replace established models from Gardner Denver, Dresser Roots, and Robuschi. It features high rotational speeds (4000-5000 rpm), high efficiency, compact design, and advanced noise reduction technologies.

Main Features

• High-speed operation with compact and efficient design.
• Low noise tri-lobe rotors and noise-reduction casing.
• Integral-shaft ductile iron impellers and dual splash lubrication.
• Durable oversized cylindrical roller bearings and hardened helical timing gears.
• Versatile sealing options and air cooling with aluminum oil tanks.
• Optional automatic belt tensioner and integrated discharge silencer base frame.
• Special ductile cast iron pulleys for high-speed operation.
• Optional start-up valve for no-load blower start without bypass air release valve.

Standard and Optional Accessories

• Standard: Blower unit, imported inlet silencer with filter, outlet silencer, pulleys, belts, belt guards, pressure relief valve, check valve, flexible joints, pressure gauges, shock absorbers, expansion bolts (for larger models).
• Optional: Motor, start-up control cabinet, sound enclosure, blower-specific relief valve.

Technical Specifications

Performance Parameters

• Pressure range: 9.8 to 98 kPa (pressure blower), vacuum range: -9.8 to -50 kPa (vacuum blower).
• Flow rate: 0.43 to 184.4 m³/min (pressure blower), 0.52 to 183.9 m³/min (vacuum blower).
• Shaft power: 0.6 to 257.7 kW (pressure blower), 0.57 to 197.6 kW (vacuum blower).

Design and Operational Advantages

• Air-cooled structure allows high-speed operation without cooling water up to 98 kPa.
• Advanced tri-lobe impeller with integrated shaft ensures rigidity and stable high-speed operation.
• Optional modular sound enclosure reduces noise below 85 dB(A).
• Special casing design enhances reliability and noise reduction under high pressure.
• Precision hardened helical gears with keyless connection provide low noise, high strength, and long life.
• Heavy-duty bearings with axial fixation improve shaft strength and durability.
• Lightweight aluminum alloy oil tank for effective heat dissipation.
• Special sealing rings ensure excellent sealing and longevity.
• Flexible installation orientation (horizontal or vertical) facilitates replacement of foreign models.
• Compact modular design with self-tensioning belt system simplifies maintenance.
• Ductile cast iron pulleys with taper-lock shaft connection for reliable maintenance.
• Blower-specific relief valves compatible with solenoid valves enable no-load start/stop without bypass valves.

Performance Data Tables

Extensive tables provide detailed inlet flow rates, shaft power, and motor power for various ZG models across operating pressures from 9.8 kPa to 98 kPa and rotational speeds from ~970 to 5000 rpm. Data is standardized at 20°C and 101.325 kPa ambient pressure, enabling precise model selection based on flow, pressure, and power requirements.

Overview of Technical Data

• Theoretical capacities range from ~2 m³/min for small models to over 120 m³/min for large models.
• Shaft power ranges from under 1 kW to over 50 kW depending on model and conditions.
• Motor power ratings are matched with shaft power, typically from 1.1 kW to over 160 kW.
• Motor pole counts (2, 4, 6 poles) correspond to different speeds and power ratings.
• ZG-290 and ZG-300 models primarily use belt transmission; direct coupling is possible if specified.

Installation and Outline Drawings

Outline drawings (not included in the text) are referenced for ZG series blower and vacuum pump packages, with and without acoustic enclosures. These provide dimensional and installation details suitable for low voltage motors Y355 and below.

Recommendations and Usage Notes

• Select blower or vacuum pump models based on required flow rate, pressure/vacuum, and power availability using provided performance data.
• Match motor pole count and power rating carefully to avoid overload and ensure efficient operation.
• Performance data assumes standard conditions; deviations in temperature or pressure may affect actual performance.
• Consult outline drawings for installation requirements to ensure proper fit and integration.

Summary of Critical Information

• High Efficiency and Energy Saving: Compact, lightweight design with high-speed operation achieves superior efficiency.
• Environmental Considerations: Air-cooled design eliminates cooling water needs, reducing environmental impact.
• Noise Reduction: Advanced rotor and casing design plus optional sound enclosures ensure low noise levels.
• Reliability and Durability: Heavy-duty bearings, hardened gears, and robust sealing provide long service life and stable performance.
• Customization and Flexibility: Wide range of accessories and configurations allow tailored solutions.
• Comprehensive Technical Support: Strong R&D and university collaborations ensure continuous innovation and quality assurance.

Manufacturer Contact Information

Shandong Zhangqiu Blower Co., Ltd
Address: Mingshui Economic Development Zone, Zhangqiu City, Shandong Province, China
Tel: +86 531 83250025 / 83250036 (Sales), +86 531 83250080 (Foreign Trade)
Fax: +86 531 83225838 (Sales), +86 531 83250082 (Foreign Trade)
Email: [email protected], [email protected]
Website: www.blower.cn
Zip Code: 250200

Eurus Blower, Inc. (USA Branch)
PO Box 4588, Wheaton, IL 60189, USA
Phone: 630-221-8282
Fax: 630-221-1002
Email: [email protected]
Website: www.eurusblower.com