Hyjet HWG Series

Hyjet HWG Grinder Submersible Pump – Heavy-Duty Wastewater Solution for Demanding Applications

The Hyjet HWG Grinder Submersible Pump is a robust and reliable solution for managing sewage and wastewater in residential, commercial, and light industrial settings. Engineered for environments where standard submersible pumps would fail due to blockages or clogging, the HWG Grinder pump features a powerful grinding mechanism that breaks down solids and fibrous materials before pumping them through the system. With its heavy-duty construction, high-performance motor, and advanced pressure pump capabilities, the Hyjet HWG delivers efficient and uninterrupted wastewater management.

Powerful Grinder Mechanism for Solid Waste

The standout feature of the Hyjet HWG is its integrated grinder system, which makes it exceptionally effective in applications involving raw sewage, greywater, and other forms of wastewater containing solids. The grinder mechanism consists of a durable stainless steel cutting ring and impeller, which work together to chop solids into small, manageable particles. This design prevents clogging and allows the pump to process and discharge wastewater through narrow pipe systems or long discharge lines.

The grinding system is especially useful in settings where sanitary products, fibrous materials, or organic waste may be present in the water. The pump can handle materials like rags, wipes, plastic wrappers, and food waste without damage or performance issues. This makes it ideal for installations in remote or difficult-to-access areas where maintenance access is limited and reliability is critical.

High-Efficiency Pressure Pump Performance

At its core, the HWG Grinder functions as a powerful pressure pump, designed to maintain reliable flow and pressure even under challenging operating conditions. It is fitted with a high-torque motor, typically ranging from 1.1kW to 2.2kW (depending on the model), which generates sufficient force to power the grinding mechanism while maintaining consistent discharge pressure.

The high head and flow rate capacity of the HWG make it suitable for applications where wastewater needs to be pumped over long distances or to elevated discharge points. Whether installed in a residential basement, septic tank, or a commercial lift station, the HWG can move wastewater efficiently and without interruption. The pump can handle vertical heads of up to 20-30 meters, depending on the model, making it suitable for multi-level buildings or hilly terrain.

Built to Last: Durable Construction

The Hyjet HWG Grinder Pump is constructed from high-quality materials to ensure long-term durability and resistance to corrosion and wear. The pump casing and impeller are typically made from cast iron or heavy-duty stainless steel, ensuring strength and resilience in abrasive and corrosive environments. The motor housing is hermetically sealed and oil-filled to provide thermal protection and to keep water and moisture from damaging internal components.

In addition, the pump features double mechanical seals, offering superior protection against water ingress and minimizing the risk of motor failure. The seal design extends the pump’s service life and reduces the need for frequent maintenance or replacement. The shaft is also supported by high-grade ball bearings, contributing to smooth operation and reliability.

Versatile Applications

The HWG Grinder Submersible Pump is suitable for a broad range of demanding applications, including:

• Domestic wastewater systems – Ideal for homes using septic tanks or located in low-lying areas where gravity drainage is not possible.

• Commercial buildings – Restaurants, hotels, and retail facilities benefit from its ability to process large volumes of wastewater with solids.

• Agricultural waste systems – Handles slurry, animal waste, and water with organic matter from farms and rural properties.

• Sewage treatment systems – Supports the initial lifting and grinding of raw sewage in municipal or semi-urban treatment systems.

• Remote installations – Great for cabins, campgrounds, and off-grid buildings where reliable pumping is crucial and maintenance opportunities are limited.

Its ability to combine grinding, lifting, and pressure pumping makes it a one-stop solution for locations that demand heavy-duty performance with minimal oversight.

Easy Installation and Maintenance

Despite its powerful design, the Hyjet HWG is straightforward to install. It is fully submersible and designed for vertical installation within pits, tanks, or sumps. The pump includes an optional automatic float switch for level-based operation, allowing the unit to start and stop without user intervention. This automation is particularly valuable in unmanned or remote systems where continuous monitoring isn’t feasible.

Maintenance is minimal, thanks to the rugged construction and the non-clogging grinder mechanism. Regular inspections and cleaning (if required) are simple due to the easily accessible design. Many models come with a quick-disconnect coupling or guide rail system for fast removal during servicing.

Safety and Protection Features

The HWG Grinder pump incorporates multiple built-in safety features to protect both the pump and connected systems:

• Thermal overload protection prevents the motor from overheating due to excessive demand or dry running.

• IP68 rating ensures full submersion safety and long-lasting protection in harsh wet environments.

• Non-return valve compatibility prevents backflow into the pump, preserving motor life and efficiency.

• Optional control panels can be integrated for system-wide monitoring and control, especially in commercial setups.

• Heavy-duty grinder pump for pumping sewage
• Ideal for pumping sewage and wastewater in domestic, commercial and industrial applications

• Semi-open impeller design with hardened stainless steel grinding system
• The large-diameter impeller generates a high pressure, and the grinding system grinds solids into small pieces, which can be drained without clogging the pipes
• Heavy duty HT200 cast iron construction
• Stainless steel shaft
• Guide rail kits available for all models
• Thermal overload protection

• Liquid Temperature: 0 – 40°C (32 – 104°F)
• Max Immersion Depth: 5m

• Frequency / Pole number: 50Hz/2
• Insulation Class: F
• Protection Class: IPX8
• Heavy Duty Ball Bearings
• Double Silicon / Carbon Mechanical Seals

Semi-open impeller with grinder system which grinds foreign material to avoid solids clogging. It’s suitable for long-distance delivery of sewage and wastewater applications.